diff options
Diffstat (limited to 'drivers/net/vxge')
| -rw-r--r-- | drivers/net/vxge/vxge-config.c | 5264 | ||||
| -rw-r--r-- | drivers/net/vxge/vxge-config.h | 2259 |
2 files changed, 7523 insertions, 0 deletions
diff --git a/drivers/net/vxge/vxge-config.c b/drivers/net/vxge/vxge-config.c new file mode 100644 index 00000000000..6b41c884a33 --- /dev/null +++ b/drivers/net/vxge/vxge-config.c @@ -0,0 +1,5264 @@ +/****************************************************************************** + * This software may be used and distributed according to the terms of + * the GNU General Public License (GPL), incorporated herein by reference. + * Drivers based on or derived from this code fall under the GPL and must + * retain the authorship, copyright and license notice. This file is not + * a complete program and may only be used when the entire operating + * system is licensed under the GPL. + * See the file COPYING in this distribution for more information. + * + * vxge-config.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O + * Virtualized Server Adapter. + * Copyright(c) 2002-2009 Neterion Inc. + ******************************************************************************/ +#include <linux/vmalloc.h> +#include <linux/etherdevice.h> +#include <linux/pci.h> +#include <linux/pci_hotplug.h> + +#include "vxge-traffic.h" +#include "vxge-config.h" + +/* + * __vxge_hw_channel_allocate - Allocate memory for channel + * This function allocates required memory for the channel and various arrays + * in the channel + */ +struct __vxge_hw_channel* +__vxge_hw_channel_allocate(struct __vxge_hw_vpath_handle *vph, + enum __vxge_hw_channel_type type, + u32 length, u32 per_dtr_space, void *userdata) +{ + struct __vxge_hw_channel *channel; + struct __vxge_hw_device *hldev; + int size = 0; + u32 vp_id; + + hldev = vph->vpath->hldev; + vp_id = vph->vpath->vp_id; + + switch (type) { + case VXGE_HW_CHANNEL_TYPE_FIFO: + size = sizeof(struct __vxge_hw_fifo); + break; + case VXGE_HW_CHANNEL_TYPE_RING: + size = sizeof(struct __vxge_hw_ring); + break; + default: + break; + } + + channel = kzalloc(size, GFP_KERNEL); + if (channel == NULL) + goto exit0; + INIT_LIST_HEAD(&channel->item); + + channel->common_reg = hldev->common_reg; + channel->first_vp_id = hldev->first_vp_id; + channel->type = type; + channel->devh = hldev; + channel->vph = vph; + channel->userdata = userdata; + channel->per_dtr_space = per_dtr_space; + channel->length = length; + channel->vp_id = vp_id; + + channel->work_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL); + if (channel->work_arr == NULL) + goto exit1; + + channel->free_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL); + if (channel->free_arr == NULL) + goto exit1; + channel->free_ptr = length; + + channel->reserve_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL); + if (channel->reserve_arr == NULL) + goto exit1; + channel->reserve_ptr = length; + channel->reserve_top = 0; + + channel->orig_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL); + if (channel->orig_arr == NULL) + goto exit1; + + return channel; +exit1: + __vxge_hw_channel_free(channel); + +exit0: + return NULL; +} + +/* + * __vxge_hw_channel_free - Free memory allocated for channel + * This function deallocates memory from the channel and various arrays + * in the channel + */ +void __vxge_hw_channel_free(struct __vxge_hw_channel *channel) +{ + kfree(channel->work_arr); + kfree(channel->free_arr); + kfree(channel->reserve_arr); + kfree(channel->orig_arr); + kfree(channel); +} + +/* + * __vxge_hw_channel_initialize - Initialize a channel + * This function initializes a channel by properly setting the + * various references + */ +enum vxge_hw_status +__vxge_hw_channel_initialize(struct __vxge_hw_channel *channel) +{ + u32 i; + struct __vxge_hw_virtualpath *vpath; + + vpath = channel->vph->vpath; + + if ((channel->reserve_arr != NULL) && (channel->orig_arr != NULL)) { + for (i = 0; i < channel->length; i++) + channel->orig_arr[i] = channel->reserve_arr[i]; + } + + switch (channel->type) { + case VXGE_HW_CHANNEL_TYPE_FIFO: + vpath->fifoh = (struct __vxge_hw_fifo *)channel; + channel->stats = &((struct __vxge_hw_fifo *) + channel)->stats->common_stats; + break; + case VXGE_HW_CHANNEL_TYPE_RING: + vpath->ringh = (struct __vxge_hw_ring *)channel; + channel->stats = &((struct __vxge_hw_ring *) + channel)->stats->common_stats; + break; + default: + break; + } + + return VXGE_HW_OK; +} + +/* + * __vxge_hw_channel_reset - Resets a channel + * This function resets a channel by properly setting the various references + */ +enum vxge_hw_status +__vxge_hw_channel_reset(struct __vxge_hw_channel *channel) +{ + u32 i; + + for (i = 0; i < channel->length; i++) { + if (channel->reserve_arr != NULL) + channel->reserve_arr[i] = channel->orig_arr[i]; + if (channel->free_arr != NULL) + channel->free_arr[i] = NULL; + if (channel->work_arr != NULL) + channel->work_arr[i] = NULL; + } + channel->free_ptr = channel->length; + channel->reserve_ptr = channel->length; + channel->reserve_top = 0; + channel->post_index = 0; + channel->compl_index = 0; + + return VXGE_HW_OK; +} + +/* + * __vxge_hw_device_pci_e_init + * Initialize certain PCI/PCI-X configuration registers + * with recommended values. Save config space for future hw resets. + */ +void +__vxge_hw_device_pci_e_init(struct __vxge_hw_device *hldev) +{ + u16 cmd = 0; + + /* Set the PErr Repconse bit and SERR in PCI command register. */ + pci_read_config_word(hldev->pdev, PCI_COMMAND, &cmd); + cmd |= 0x140; + pci_write_config_word(hldev->pdev, PCI_COMMAND, cmd); + + pci_save_state(hldev->pdev); + + return; +} + +/* + * __vxge_hw_device_register_poll + * Will poll certain register for specified amount of time. + * Will poll until masked bit is not cleared. + */ +enum vxge_hw_status +__vxge_hw_device_register_poll(void __iomem *reg, u64 mask, u32 max_millis) +{ + u64 val64; + u32 i = 0; + enum vxge_hw_status ret = VXGE_HW_FAIL; + + udelay(10); + + do { + val64 = readq(reg); + if (!(val64 & mask)) + return VXGE_HW_OK; + udelay(100); + } while (++i <= 9); + + i = 0; + do { + val64 = readq(reg); + if (!(val64 & mask)) + return VXGE_HW_OK; + mdelay(1); + } while (++i <= max_millis); + + return ret; +} + + /* __vxge_hw_device_vpath_reset_in_prog_check - Check if vpath reset + * in progress + * This routine checks the vpath reset in progress register is turned zero + */ +enum vxge_hw_status +__vxge_hw_device_vpath_reset_in_prog_check(u64 __iomem *vpath_rst_in_prog) +{ + enum vxge_hw_status status; + status = __vxge_hw_device_register_poll(vpath_rst_in_prog, + VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(0x1ffff), + VXGE_HW_DEF_DEVICE_POLL_MILLIS); + return status; +} + +/* + * __vxge_hw_device_toc_get + * This routine sets the swapper and reads the toc pointer and returns the + * memory mapped address of the toc + */ +struct vxge_hw_toc_reg __iomem * +__vxge_hw_device_toc_get(void __iomem *bar0) +{ + u64 val64; + struct vxge_hw_toc_reg __iomem *toc = NULL; + enum vxge_hw_status status; + + struct vxge_hw_legacy_reg __iomem *legacy_reg = + (struct vxge_hw_legacy_reg __iomem *)bar0; + + status = __vxge_hw_legacy_swapper_set(legacy_reg); + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&legacy_reg->toc_first_pointer); + toc = (struct vxge_hw_toc_reg __iomem *)(bar0+val64); +exit: + return toc; +} + +/* + * __vxge_hw_device_reg_addr_get + * This routine sets the swapper and reads the toc pointer and initializes the + * register location pointers in the device object. It waits until the ric is + * completed initializing registers. + */ +enum vxge_hw_status +__vxge_hw_device_reg_addr_get(struct __vxge_hw_device *hldev) +{ + u64 val64; + u32 i; + enum vxge_hw_status status = VXGE_HW_OK; + + hldev->legacy_reg = (struct vxge_hw_legacy_reg __iomem *)hldev->bar0; + + hldev->toc_reg = __vxge_hw_device_toc_get(hldev->bar0); + if (hldev->toc_reg == NULL) { + status = VXGE_HW_FAIL; + goto exit; + } + + val64 = readq(&hldev->toc_reg->toc_common_pointer); + hldev->common_reg = + (struct vxge_hw_common_reg __iomem *)(hldev->bar0 + val64); + + val64 = readq(&hldev->toc_reg->toc_mrpcim_pointer); + hldev->mrpcim_reg = + (struct vxge_hw_mrpcim_reg __iomem *)(hldev->bar0 + val64); + + for (i = 0; i < VXGE_HW_TITAN_SRPCIM_REG_SPACES; i++) { + val64 = readq(&hldev->toc_reg->toc_srpcim_pointer[i]); + hldev->srpcim_reg[i] = + (struct vxge_hw_srpcim_reg __iomem *) + (hldev->bar0 + val64); + } + + for (i = 0; i < VXGE_HW_TITAN_VPMGMT_REG_SPACES; i++) { + val64 = readq(&hldev->toc_reg->toc_vpmgmt_pointer[i]); + hldev->vpmgmt_reg[i] = + (struct vxge_hw_vpmgmt_reg __iomem *)(hldev->bar0 + val64); + } + + for (i = 0; i < VXGE_HW_TITAN_VPATH_REG_SPACES; i++) { + val64 = readq(&hldev->toc_reg->toc_vpath_pointer[i]); + hldev->vpath_reg[i] = + (struct vxge_hw_vpath_reg __iomem *) + (hldev->bar0 + val64); + } + + val64 = readq(&hldev->toc_reg->toc_kdfc); + + switch (VXGE_HW_TOC_GET_KDFC_INITIAL_BIR(val64)) { + case 0: + hldev->kdfc = (u8 __iomem *)(hldev->bar0 + + VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64)); + break; + case 2: + hldev->kdfc = (u8 __iomem *)(hldev->bar1 + + VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64)); + break; + case 4: + hldev->kdfc = (u8 __iomem *)(hldev->bar2 + + VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64)); + break; + default: + break; + } + + status = __vxge_hw_device_vpath_reset_in_prog_check( + (u64 __iomem *)&hldev->common_reg->vpath_rst_in_prog); +exit: + return status; +} + +/* + * __vxge_hw_device_id_get + * This routine returns sets the device id and revision numbers into the device + * structure + */ +void __vxge_hw_device_id_get(struct __vxge_hw_device *hldev) +{ + u64 val64; + + val64 = readq(&hldev->common_reg->titan_asic_id); + hldev->device_id = + (u16)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_DEVICE_ID(val64); + + hldev->major_revision = + (u8)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_MAJOR_REVISION(val64); + + hldev->minor_revision = + (u8)VXGE_HW_TITAN_ASIC_ID_GET_INITIAL_MINOR_REVISION(val64); + + return; +} + +/* + * __vxge_hw_device_access_rights_get: Get Access Rights of the driver + * This routine returns the Access Rights of the driver + */ +static u32 +__vxge_hw_device_access_rights_get(u32 host_type, u32 func_id) +{ + u32 access_rights = VXGE_HW_DEVICE_ACCESS_RIGHT_VPATH; + + switch (host_type) { + case VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION: + if (func_id == 0) { + access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM | + VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM; + } + break; + case VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION: + access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM | + VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM; + break; + case VXGE_HW_NO_MR_SR_VH0_FUNCTION0: + access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM | + VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM; + break; + case VXGE_HW_NO_MR_SR_VH0_VIRTUAL_FUNCTION: + case VXGE_HW_SR_VH_VIRTUAL_FUNCTION: + case VXGE_HW_MR_SR_VH0_INVALID_CONFIG: + break; + case VXGE_HW_SR_VH_FUNCTION0: + case VXGE_HW_VH_NORMAL_FUNCTION: + access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM; + break; + } + + return access_rights; +} +/* + * __vxge_hw_device_host_info_get + * This routine returns the host type assignments + */ +void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev) +{ + u64 val64; + u32 i; + + val64 = readq(&hldev->common_reg->host_type_assignments); + + hldev->host_type = + (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64); + + hldev->vpath_assignments = readq(&hldev->common_reg->vpath_assignments); + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + if (!(hldev->vpath_assignments & vxge_mBIT(i))) + continue; + + hldev->func_id = + __vxge_hw_vpath_func_id_get(i, hldev->vpmgmt_reg[i]); + + hldev->access_rights = __vxge_hw_device_access_rights_get( + hldev->host_type, hldev->func_id); + + hldev->first_vp_id = i; + break; + } + + return; +} + +/* + * __vxge_hw_verify_pci_e_info - Validate the pci-e link parameters such as + * link width and signalling rate. + */ +static enum vxge_hw_status +__vxge_hw_verify_pci_e_info(struct __vxge_hw_device *hldev) +{ + int exp_cap; + u16 lnk; + + /* Get the negotiated link width and speed from PCI config space */ + exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP); + pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk); + + if ((lnk & PCI_EXP_LNKSTA_CLS) != 1) + return VXGE_HW_ERR_INVALID_PCI_INFO; + + switch ((lnk & PCI_EXP_LNKSTA_NLW) >> 4) { + case PCIE_LNK_WIDTH_RESRV: + case PCIE_LNK_X1: + case PCIE_LNK_X2: + case PCIE_LNK_X4: + case PCIE_LNK_X8: + break; + default: + return VXGE_HW_ERR_INVALID_PCI_INFO; + } + + return VXGE_HW_OK; +} + +static enum vxge_hw_status +__vxge_hw_device_is_privilaged(struct __vxge_hw_device *hldev) +{ + if ((hldev->host_type == VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION || + hldev->host_type == VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION || + hldev->host_type == VXGE_HW_NO_MR_SR_VH0_FUNCTION0) && + (hldev->func_id == 0)) + return VXGE_HW_OK; + else + return VXGE_HW_ERR_PRIVILAGED_OPEARATION; +} + +/* + * vxge_hw_wrr_rebalance - Rebalance the RX_WRR and KDFC_WRR calandars. + * Rebalance the RX_WRR and KDFC_WRR calandars. + */ +static enum +vxge_hw_status vxge_hw_wrr_rebalance(struct __vxge_hw_device *hldev) +{ + u64 val64; + u32 wrr_states[VXGE_HW_WEIGHTED_RR_SERVICE_STATES]; + u32 i, j, how_often = 1; + enum vxge_hw_status status = VXGE_HW_OK; + + status = __vxge_hw_device_is_privilaged(hldev); + if (status != VXGE_HW_OK) + goto exit; + + /* Reset the priorities assigned to the WRR arbitration + phases for the receive traffic */ + for (i = 0; i < VXGE_HW_WRR_RING_COUNT; i++) + writeq(0, ((&hldev->mrpcim_reg->rx_w_round_robin_0) + i)); + + /* Reset the transmit FIFO servicing calendar for FIFOs */ + for (i = 0; i < VXGE_HW_WRR_FIFO_COUNT; i++) { + writeq(0, ((&hldev->mrpcim_reg->kdfc_w_round_robin_0) + i)); + writeq(0, ((&hldev->mrpcim_reg->kdfc_w_round_robin_20) + i)); + } + + /* Assign WRR priority 0 for all FIFOs */ + for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + writeq(VXGE_HW_KDFC_FIFO_0_CTRL_WRR_NUMBER(0), + ((&hldev->mrpcim_reg->kdfc_fifo_0_ctrl) + i)); + + writeq(VXGE_HW_KDFC_FIFO_17_CTRL_WRR_NUMBER(0), + ((&hldev->mrpcim_reg->kdfc_fifo_17_ctrl) + i)); + } + + /* Reset to service non-offload doorbells */ + writeq(0, &hldev->mrpcim_reg->kdfc_entry_type_sel_0); + writeq(0, &hldev->mrpcim_reg->kdfc_entry_type_sel_1); + + /* Set priority 0 to all receive queues */ + writeq(0, &hldev->mrpcim_reg->rx_queue_priority_0); + writeq(0, &hldev->mrpcim_reg->rx_queue_priority_1); + writeq(0, &hldev->mrpcim_reg->rx_queue_priority_2); + + /* Initialize all the slots as unused */ + for (i = 0; i < VXGE_HW_WEIGHTED_RR_SERVICE_STATES; i++) + wrr_states[i] = -1; + + /* Prepare the Fifo service states */ + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + if (!hldev->config.vp_config[i].min_bandwidth) + continue; + + how_often = VXGE_HW_VPATH_BANDWIDTH_MAX / + hldev->config.vp_config[i].min_bandwidth; + if (how_often) { + + for (j = 0; j < VXGE_HW_WRR_FIFO_SERVICE_STATES;) { + if (wrr_states[j] == -1) { + wrr_states[j] = i; + /* Make sure each fifo is serviced + * atleast once */ + if (i == j) + j += VXGE_HW_MAX_VIRTUAL_PATHS; + else + j += how_often; + } else + j++; + } + } + } + + /* Fill the unused slots with 0 */ + for (j = 0; j < VXGE_HW_WEIGHTED_RR_SERVICE_STATES; j++) { + if (wrr_states[j] == -1) + wrr_states[j] = 0; + } + + /* Assign WRR priority number for FIFOs */ + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + writeq(VXGE_HW_KDFC_FIFO_0_CTRL_WRR_NUMBER(i), + ((&hldev->mrpcim_reg->kdfc_fifo_0_ctrl) + i)); + + writeq(VXGE_HW_KDFC_FIFO_17_CTRL_WRR_NUMBER(i), + ((&hldev->mrpcim_reg->kdfc_fifo_17_ctrl) + i)); + } + + /* Modify the servicing algorithm applied to the 3 types of doorbells. + i.e, none-offload, message and offload */ + writeq(VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_0(0) | + VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_1(0) | + VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_2(0) | + VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_3(0) | + VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_4(1) | + VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_5(0) | + VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_6(0) | + VXGE_HW_KDFC_ENTRY_TYPE_SEL_0_NUMBER_7(0), + &hldev->mrpcim_reg->kdfc_entry_type_sel_0); + + writeq(VXGE_HW_KDFC_ENTRY_TYPE_SEL_1_NUMBER_8(1), + &hldev->mrpcim_reg->kdfc_entry_type_sel_1); + + for (i = 0, j = 0; i < VXGE_HW_WRR_FIFO_COUNT; i++) { + + val64 = VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_0(wrr_states[j++]); + val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_1(wrr_states[j++]); + val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_2(wrr_states[j++]); + val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_3(wrr_states[j++]); + val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_4(wrr_states[j++]); + val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_5(wrr_states[j++]); + val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_6(wrr_states[j++]); + val64 |= VXGE_HW_KDFC_W_ROUND_ROBIN_0_NUMBER_7(wrr_states[j++]); + + writeq(val64, (&hldev->mrpcim_reg->kdfc_w_round_robin_0 + i)); + writeq(val64, (&hldev->mrpcim_reg->kdfc_w_round_robin_20 + i)); + } + + /* Set up the priorities assigned to receive queues */ + writeq(VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_0(0) | + VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_1(1) | + VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_2(2) | + VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_3(3) | + VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_4(4) | + VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_5(5) | + VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_6(6) | + VXGE_HW_RX_QUEUE_PRIORITY_0_RX_Q_NUMBER_7(7), + &hldev->mrpcim_reg->rx_queue_priority_0); + + writeq(VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_8(8) | + VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_9(9) | + VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_10(10) | + VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_11(11) | + VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_12(12) | + VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_13(13) | + VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_14(14) | + VXGE_HW_RX_QUEUE_PRIORITY_1_RX_Q_NUMBER_15(15), + &hldev->mrpcim_reg->rx_queue_priority_1); + + writeq(VXGE_HW_RX_QUEUE_PRIORITY_2_RX_Q_NUMBER_16(16), + &hldev->mrpcim_reg->rx_queue_priority_2); + + /* Initialize all the slots as unused */ + for (i = 0; i < VXGE_HW_WEIGHTED_RR_SERVICE_STATES; i++) + wrr_states[i] = -1; + + /* Prepare the Ring service states */ + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + if (!hldev->config.vp_config[i].min_bandwidth) + continue; + + how_often = VXGE_HW_VPATH_BANDWIDTH_MAX / + hldev->config.vp_config[i].min_bandwidth; + + if (how_often) { + for (j = 0; j < VXGE_HW_WRR_RING_SERVICE_STATES;) { + if (wrr_states[j] == -1) { + wrr_states[j] = i; + /* Make sure each ring is + * serviced atleast once */ + if (i == j) + j += VXGE_HW_MAX_VIRTUAL_PATHS; + else + j += how_often; + } else + j++; + } + } + } + + /* Fill the unused slots with 0 */ + for (j = 0; j < VXGE_HW_WEIGHTED_RR_SERVICE_STATES; j++) { + if (wrr_states[j] == -1) + wrr_states[j] = 0; + } + + for (i = 0, j = 0; i < VXGE_HW_WRR_RING_COUNT; i++) { + val64 = VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_0( + wrr_states[j++]); + val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_1( + wrr_states[j++]); + val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_2( + wrr_states[j++]); + val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_3( + wrr_states[j++]); + val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_4( + wrr_states[j++]); + val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_5( + wrr_states[j++]); + val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_6( + wrr_states[j++]); + val64 |= VXGE_HW_RX_W_ROUND_ROBIN_0_RX_W_PRIORITY_SS_7( + wrr_states[j++]); + + writeq(val64, ((&hldev->mrpcim_reg->rx_w_round_robin_0) + i)); + } +exit: + return status; +} + +/* + * __vxge_hw_device_initialize + * Initialize Titan-V hardware. + */ +enum vxge_hw_status __vxge_hw_device_initialize(struct __vxge_hw_device *hldev) +{ + enum vxge_hw_status status = VXGE_HW_OK; + + /* Validate the pci-e link width and speed */ + status = __vxge_hw_verify_pci_e_info(hldev); + if (status != VXGE_HW_OK) + goto exit; + + vxge_hw_wrr_rebalance(hldev); +exit: + return status; +} + +/** + * vxge_hw_device_hw_info_get - Get the hw information + * Returns the vpath mask that has the bits set for each vpath allocated + * for the driver, FW version information and the first mac addresse for + * each vpath + */ +enum vxge_hw_status __devinit +vxge_hw_device_hw_info_get(void __iomem *bar0, + struct vxge_hw_device_hw_info *hw_info) +{ + u32 i; + u64 val64; + struct vxge_hw_toc_reg __iomem *toc; + struct vxge_hw_mrpcim_reg __iomem *mrpcim_reg; + struct vxge_hw_common_reg __iomem *common_reg; + struct vxge_hw_vpath_reg __iomem *vpath_reg; + struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg; + enum vxge_hw_status status; + + memset(hw_info, 0, sizeof(struct vxge_hw_device_hw_info)); + + toc = __vxge_hw_device_toc_get(bar0); + if (toc == NULL) { + status = VXGE_HW_ERR_CRITICAL; + goto exit; + } + + val64 = readq(&toc->toc_common_pointer); + common_reg = (struct vxge_hw_common_reg __iomem *)(bar0 + val64); + + status = __vxge_hw_device_vpath_reset_in_prog_check( + (u64 __iomem *)&common_reg->vpath_rst_in_prog); + if (status != VXGE_HW_OK) + goto exit; + + hw_info->vpath_mask = readq(&common_reg->vpath_assignments); + + val64 = readq(&common_reg->host_type_assignments); + + hw_info->host_type = + (u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64); + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + if (!((hw_info->vpath_mask) & vxge_mBIT(i))) + continue; + + val64 = readq(&toc->toc_vpmgmt_pointer[i]); + + vpmgmt_reg = (struct vxge_hw_vpmgmt_reg __iomem *) + (bar0 + val64); + + hw_info->func_id = __vxge_hw_vpath_func_id_get(i, vpmgmt_reg); + if (__vxge_hw_device_access_rights_get(hw_info->host_type, + hw_info->func_id) & + VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM) { + + val64 = readq(&toc->toc_mrpcim_pointer); + + mrpcim_reg = (struct vxge_hw_mrpcim_reg __iomem *) + (bar0 + val64); + + writeq(0, &mrpcim_reg->xgmac_gen_fw_memo_mask); + wmb(); + } + + val64 = readq(&toc->toc_vpath_pointer[i]); + + vpath_reg = (struct vxge_hw_vpath_reg __iomem *)(bar0 + val64); + + hw_info->function_mode = + __vxge_hw_vpath_pci_func_mode_get(i, vpath_reg); + + status = __vxge_hw_vpath_fw_ver_get(i, vpath_reg, hw_info); + if (status != VXGE_HW_OK) + goto exit; + + status = __vxge_hw_vpath_card_info_get(i, vpath_reg, hw_info); + if (status != VXGE_HW_OK) + goto exit; + + break; + } + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + if (!((hw_info->vpath_mask) & vxge_mBIT(i))) + continue; + + val64 = readq(&toc->toc_vpath_pointer[i]); + vpath_reg = (struct vxge_hw_vpath_reg __iomem *)(bar0 + val64); + + status = __vxge_hw_vpath_addr_get(i, vpath_reg, + hw_info->mac_addrs[i], + hw_info->mac_addr_masks[i]); + if (status != VXGE_HW_OK) + goto exit; + } +exit: + return status; +} + +/* + * vxge_hw_device_initialize - Initialize Titan device. + * Initialize Titan device. Note that all the arguments of this public API + * are 'IN', including @hldev. Driver cooperates with + * OS to find new Titan device, locate its PCI and memory spaces. + * + * When done, the driver allocates sizeof(struct __vxge_hw_device) bytes for HW + * to enable the latter to perform Titan hardware initialization. + */ +enum vxge_hw_status __devinit +vxge_hw_device_initialize( + struct __vxge_hw_device **devh, + struct vxge_hw_device_attr *attr, + struct vxge_hw_device_config *device_config) +{ + u32 i; + u32 nblocks = 0; + struct __vxge_hw_device *hldev = NULL; + enum vxge_hw_status status = VXGE_HW_OK; + + status = __vxge_hw_device_config_check(device_config); + if (status != VXGE_HW_OK) + goto exit; + + hldev = (struct __vxge_hw_device *) + vmalloc(sizeof(struct __vxge_hw_device)); + if (hldev == NULL) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + memset(hldev, 0, sizeof(struct __vxge_hw_device)); + hldev->magic = VXGE_HW_DEVICE_MAGIC; + + vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_ALL); + + /* apply config */ + memcpy(&hldev->config, device_config, + sizeof(struct vxge_hw_device_config)); + + hldev->bar0 = attr->bar0; + hldev->bar1 = attr->bar1; + hldev->bar2 = attr->bar2; + hldev->pdev = attr->pdev; + + hldev->uld_callbacks.link_up = attr->uld_callbacks.link_up; + hldev->uld_callbacks.link_down = attr->uld_callbacks.link_down; + hldev->uld_callbacks.crit_err = attr->uld_callbacks.crit_err; + + __vxge_hw_device_pci_e_init(hldev); + + status = __vxge_hw_device_reg_addr_get(hldev); + if (status != VXGE_HW_OK) + goto exit; + __vxge_hw_device_id_get(hldev); + + __vxge_hw_device_host_info_get(hldev); + + /* Incrementing for stats blocks */ + nblocks++; + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + if (!(hldev->vpath_assignments & vxge_mBIT(i))) + continue; + + if (device_config->vp_config[i].ring.enable == + VXGE_HW_RING_ENABLE) + nblocks += device_config->vp_config[i].ring.ring_blocks; + + if (device_config->vp_config[i].fifo.enable == + VXGE_HW_FIFO_ENABLE) + nblocks += device_config->vp_config[i].fifo.fifo_blocks; + nblocks++; + } + + if (__vxge_hw_blockpool_create(hldev, + &hldev->block_pool, + device_config->dma_blockpool_initial + nblocks, + device_config->dma_blockpool_max + nblocks) != VXGE_HW_OK) { + + vxge_hw_device_terminate(hldev); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + status = __vxge_hw_device_initialize(hldev); + + if (status != VXGE_HW_OK) { + vxge_hw_device_terminate(hldev); + goto exit; + } + + *devh = hldev; +exit: + return status; +} + +/* + * vxge_hw_device_terminate - Terminate Titan device. + * Terminate HW device. + */ +void +vxge_hw_device_terminate(struct __vxge_hw_device *hldev) +{ + vxge_assert(hldev->magic == VXGE_HW_DEVICE_MAGIC); + + hldev->magic = VXGE_HW_DEVICE_DEAD; + __vxge_hw_blockpool_destroy(&hldev->block_pool); + vfree(hldev); +} + +/* + * vxge_hw_device_stats_get - Get the device hw statistics. + * Returns the vpath h/w stats for the device. + */ +enum vxge_hw_status +vxge_hw_device_stats_get(struct __vxge_hw_device *hldev, + struct vxge_hw_device_stats_hw_info *hw_stats) +{ + u32 i; + enum vxge_hw_status status = VXGE_HW_OK; + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + if (!(hldev->vpaths_deployed & vxge_mBIT(i)) || + (hldev->virtual_paths[i].vp_open == + VXGE_HW_VP_NOT_OPEN)) + continue; + + memcpy(hldev->virtual_paths[i].hw_stats_sav, + hldev->virtual_paths[i].hw_stats, + sizeof(struct vxge_hw_vpath_stats_hw_info)); + + status = __vxge_hw_vpath_stats_get( + &hldev->virtual_paths[i], + hldev->virtual_paths[i].hw_stats); + } + + memcpy(hw_stats, &hldev->stats.hw_dev_info_stats, + sizeof(struct vxge_hw_device_stats_hw_info)); + + return status; +} + +/* + * vxge_hw_driver_stats_get - Get the device sw statistics. + * Returns the vpath s/w stats for the device. + */ +enum vxge_hw_status vxge_hw_driver_stats_get( + struct __vxge_hw_device *hldev, + struct vxge_hw_device_stats_sw_info *sw_stats) +{ + enum vxge_hw_status status = VXGE_HW_OK; + + memcpy(sw_stats, &hldev->stats.sw_dev_info_stats, + sizeof(struct vxge_hw_device_stats_sw_info)); + + return status; +} + +/* + * vxge_hw_mrpcim_stats_access - Access the statistics from the given location + * and offset and perform an operation + * Get the statistics from the given location and offset. + */ +enum vxge_hw_status +vxge_hw_mrpcim_stats_access(struct __vxge_hw_device *hldev, + u32 operation, u32 location, u32 offset, u64 *stat) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + + status = __vxge_hw_device_is_privilaged(hldev); + if (status != VXGE_HW_OK) + goto exit; + + val64 = VXGE_HW_XMAC_STATS_SYS_CMD_OP(operation) | + VXGE_HW_XMAC_STATS_SYS_CMD_STROBE | + VXGE_HW_XMAC_STATS_SYS_CMD_LOC_SEL(location) | + VXGE_HW_XMAC_STATS_SYS_CMD_OFFSET_SEL(offset); + + status = __vxge_hw_pio_mem_write64(val64, + &hldev->mrpcim_reg->xmac_stats_sys_cmd, + VXGE_HW_XMAC_STATS_SYS_CMD_STROBE, + hldev->config.device_poll_millis); + + if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ)) + *stat = readq(&hldev->mrpcim_reg->xmac_stats_sys_data); + else + *stat = 0; +exit: + return status; +} + +/* + * vxge_hw_device_xmac_aggr_stats_get - Get the Statistics on aggregate port + * Get the Statistics on aggregate port + */ +enum vxge_hw_status +vxge_hw_device_xmac_aggr_stats_get(struct __vxge_hw_device *hldev, u32 port, + struct vxge_hw_xmac_aggr_stats *aggr_stats) +{ + u64 *val64; + int i; + u32 offset = VXGE_HW_STATS_AGGRn_OFFSET; + enum vxge_hw_status status = VXGE_HW_OK; + + val64 = (u64 *)aggr_stats; + + status = __vxge_hw_device_is_privilaged(hldev); + if (status != VXGE_HW_OK) + goto exit; + + for (i = 0; i < sizeof(struct vxge_hw_xmac_aggr_stats) / 8; i++) { + status = vxge_hw_mrpcim_stats_access(hldev, + VXGE_HW_STATS_OP_READ, + VXGE_HW_STATS_LOC_AGGR, + ((offset + (104 * port)) >> 3), val64); + if (status != VXGE_HW_OK) + goto exit; + + offset += 8; + val64++; + } +exit: + return status; +} + +/* + * vxge_hw_device_xmac_port_stats_get - Get the Statistics on a port + * Get the Statistics on port + */ +enum vxge_hw_status +vxge_hw_device_xmac_port_stats_get(struct __vxge_hw_device *hldev, u32 port, + struct vxge_hw_xmac_port_stats *port_stats) +{ + u64 *val64; + enum vxge_hw_status status = VXGE_HW_OK; + int i; + u32 offset = 0x0; + val64 = (u64 *) port_stats; + + status = __vxge_hw_device_is_privilaged(hldev); + if (status != VXGE_HW_OK) + goto exit; + + for (i = 0; i < sizeof(struct vxge_hw_xmac_port_stats) / 8; i++) { + status = vxge_hw_mrpcim_stats_access(hldev, + VXGE_HW_STATS_OP_READ, + VXGE_HW_STATS_LOC_AGGR, + ((offset + (608 * port)) >> 3), val64); + if (status != VXGE_HW_OK) + goto exit; + + offset += 8; + val64++; + } + +exit: + return status; +} + +/* + * vxge_hw_device_xmac_stats_get - Get the XMAC Statistics + * Get the XMAC Statistics + */ +enum vxge_hw_status +vxge_hw_device_xmac_stats_get(struct __vxge_hw_device *hldev, + struct vxge_hw_xmac_stats *xmac_stats) +{ + enum vxge_hw_status status = VXGE_HW_OK; + u32 i; + + status = vxge_hw_device_xmac_aggr_stats_get(hldev, + 0, &xmac_stats->aggr_stats[0]); + + if (status != VXGE_HW_OK) + goto exit; + + status = vxge_hw_device_xmac_aggr_stats_get(hldev, + 1, &xmac_stats->aggr_stats[1]); + if (status != VXGE_HW_OK) + goto exit; + + for (i = 0; i <= VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) { + + status = vxge_hw_device_xmac_port_stats_get(hldev, + i, &xmac_stats->port_stats[i]); + if (status != VXGE_HW_OK) + goto exit; + } + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + if (!(hldev->vpaths_deployed & vxge_mBIT(i))) + continue; + + status = __vxge_hw_vpath_xmac_tx_stats_get( + &hldev->virtual_paths[i], + &xmac_stats->vpath_tx_stats[i]); + if (status != VXGE_HW_OK) + goto exit; + + status = __vxge_hw_vpath_xmac_rx_stats_get( + &hldev->virtual_paths[i], + &xmac_stats->vpath_rx_stats[i]); + if (status != VXGE_HW_OK) + goto exit; + } +exit: + return status; +} + +/* + * vxge_hw_device_debug_set - Set the debug module, level and timestamp + * This routine is used to dynamically change the debug output + */ +void vxge_hw_device_debug_set(struct __vxge_hw_device *hldev, + enum vxge_debug_level level, u32 mask) +{ + if (hldev == NULL) + return; + +#if defined(VXGE_DEBUG_TRACE_MASK) || \ + defined(VXGE_DEBUG_ERR_MASK) + hldev->debug_module_mask = mask; + hldev->debug_level = level; +#endif + +#if defined(VXGE_DEBUG_ERR_MASK) + hldev->level_err = level & VXGE_ERR; +#endif + +#if defined(VXGE_DEBUG_TRACE_MASK) + hldev->level_trace = level & VXGE_TRACE; +#endif +} + +/* + * vxge_hw_device_error_level_get - Get the error level + * This routine returns the current error level set + */ +u32 vxge_hw_device_error_level_get(struct __vxge_hw_device *hldev) +{ +#if defined(VXGE_DEBUG_ERR_MASK) + if (hldev == NULL) + return VXGE_ERR; + else + return hldev->level_err; +#else + return 0; +#endif +} + +/* + * vxge_hw_device_trace_level_get - Get the trace level + * This routine returns the current trace level set + */ +u32 vxge_hw_device_trace_level_get(struct __vxge_hw_device *hldev) +{ +#if defined(VXGE_DEBUG_TRACE_MASK) + if (hldev == NULL) + return VXGE_TRACE; + else + return hldev->level_trace; +#else + return 0; +#endif +} +/* + * vxge_hw_device_debug_mask_get - Get the debug mask + * This routine returns the current debug mask set + */ +u32 vxge_hw_device_debug_mask_get(struct __vxge_hw_device *hldev) +{ +#if defined(VXGE_DEBUG_TRACE_MASK) || defined(VXGE_DEBUG_ERR_MASK) + if (hldev == NULL) + return 0; + return hldev->debug_module_mask; +#else + return 0; +#endif +} + +/* + * vxge_hw_getpause_data -Pause frame frame generation and reception. + * Returns the Pause frame generation and reception capability of the NIC. + */ +enum vxge_hw_status vxge_hw_device_getpause_data(struct __vxge_hw_device *hldev, + u32 port, u32 *tx, u32 *rx) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + + if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) { + status = VXGE_HW_ERR_INVALID_DEVICE; + goto exit; + } + + if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) { + status = VXGE_HW_ERR_INVALID_PORT; + goto exit; + } + + if (!(hldev->access_rights & VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) { + status = VXGE_HW_ERR_PRIVILAGED_OPEARATION; + goto exit; + } + + val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]); + if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN) + *tx = 1; + if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN) + *rx = 1; +exit: + return status; +} + +/* + * vxge_hw_device_setpause_data - set/reset pause frame generation. + * It can be used to set or reset Pause frame generation or reception + * support of the NIC. + */ + +enum vxge_hw_status vxge_hw_device_setpause_data(struct __vxge_hw_device *hldev, + u32 port, u32 tx, u32 rx) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + + if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) { + status = VXGE_HW_ERR_INVALID_DEVICE; + goto exit; + } + + if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) { + status = VXGE_HW_ERR_INVALID_PORT; + goto exit; + } + + status = __vxge_hw_device_is_privilaged(hldev); + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]); + if (tx) + val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN; + else + val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN; + if (rx) + val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN; + else + val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN; + + writeq(val64, &hldev->mrpcim_reg->rxmac_pause_cfg_port[port]); +exit: + return status; +} + +u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *hldev) +{ + int link_width, exp_cap; + u16 lnk; + + exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP); + pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk); + link_width = (lnk & VXGE_HW_PCI_EXP_LNKCAP_LNK_WIDTH) >> 4; + return link_width; +} + +/* + * __vxge_hw_ring_block_memblock_idx - Return the memblock index + * This function returns the index of memory block + */ +static inline u32 +__vxge_hw_ring_block_memblock_idx(u8 *block) +{ + return (u32)*((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET)); +} + +/* + * __vxge_hw_ring_block_memblock_idx_set - Sets the memblock index + * This function sets index to a memory block + */ +static inline void +__vxge_hw_ring_block_memblock_idx_set(u8 *block, u32 memblock_idx) +{ + *((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET)) = memblock_idx; +} + +/* + * __vxge_hw_ring_block_next_pointer_set - Sets the next block pointer + * in RxD block + * Sets the next block pointer in RxD block + */ +static inline void +__vxge_hw_ring_block_next_pointer_set(u8 *block, dma_addr_t dma_next) +{ + *((u64 *)(block + VXGE_HW_RING_NEXT_BLOCK_POINTER_OFFSET)) = dma_next; +} + +/* + * __vxge_hw_ring_first_block_address_get - Returns the dma address of the + * first block + * Returns the dma address of the first RxD block + */ +u64 __vxge_hw_ring_first_block_address_get(struct __vxge_hw_ring *ring) +{ + struct vxge_hw_mempool_dma *dma_object; + + dma_object = ring->mempool->memblocks_dma_arr; + vxge_assert(dma_object != NULL); + + return dma_object->addr; +} + +/* + * __vxge_hw_ring_item_dma_addr - Return the dma address of an item + * This function returns the dma address of a given item + */ +static dma_addr_t __vxge_hw_ring_item_dma_addr(struct vxge_hw_mempool *mempoolh, + void *item) +{ + u32 memblock_idx; + void *memblock; + struct vxge_hw_mempool_dma *memblock_dma_object; + ptrdiff_t dma_item_offset; + + /* get owner memblock index */ + memblock_idx = __vxge_hw_ring_block_memblock_idx(item); + + /* get owner memblock by memblock index */ + memblock = mempoolh->memblocks_arr[memblock_idx]; + + /* get memblock DMA object by memblock index */ + memblock_dma_object = mempoolh->memblocks_dma_arr + memblock_idx; + + /* calculate offset in the memblock of this item */ + dma_item_offset = (u8 *)item - (u8 *)memblock; + + return memblock_dma_object->addr + dma_item_offset; +} + +/* + * __vxge_hw_ring_rxdblock_link - Link the RxD blocks + * This function returns the dma address of a given item + */ +static void __vxge_hw_ring_rxdblock_link(struct vxge_hw_mempool *mempoolh, + struct __vxge_hw_ring *ring, u32 from, + u32 to) +{ + u8 *to_item , *from_item; + dma_addr_t to_dma; + + /* get "from" RxD block */ + from_item = mempoolh->items_arr[from]; + vxge_assert(from_item); + + /* get "to" RxD block */ + to_item = mempoolh->items_arr[to]; + vxge_assert(to_item); + + /* return address of the beginning of previous RxD block */ + to_dma = __vxge_hw_ring_item_dma_addr(mempoolh, to_item); + + /* set next pointer for this RxD block to point on + * previous item's DMA start address */ + __vxge_hw_ring_block_next_pointer_set(from_item, to_dma); +} + +/* + * __vxge_hw_ring_mempool_item_alloc - Allocate List blocks for RxD + * block callback + * This function is callback passed to __vxge_hw_mempool_create to create memory + * pool for RxD block + */ +static void +__vxge_hw_ring_mempool_item_alloc(struct vxge_hw_mempool *mempoolh, + u32 memblock_index, + struct vxge_hw_mempool_dma *dma_object, + u32 index, u32 is_last) +{ + u32 i; + void *item = mempoolh->items_arr[index]; + struct __vxge_hw_ring *ring = + (struct __vxge_hw_ring *)mempoolh->userdata; + + /* format rxds array */ + for (i = 0; i < ring->rxds_per_block; i++) { + void *rxdblock_priv; + void *uld_priv; + struct vxge_hw_ring_rxd_1 *rxdp; + + u32 reserve_index = ring->channel.reserve_ptr - + (index * ring->rxds_per_block + i + 1); + u32 memblock_item_idx; + + ring->channel.reserve_arr[reserve_index] = ((u8 *)item) + + i * ring->rxd_size; + + /* Note: memblock_item_idx is index of the item within + * the memblock. For instance, in case of three RxD-blocks + * per memblock this value can be 0, 1 or 2. */ + rxdblock_priv = __vxge_hw_mempool_item_priv(mempoolh, + memblock_index, item, + &memblock_item_idx); + + rxdp = (struct vxge_hw_ring_rxd_1 *) + ring->channel.reserve_arr[reserve_index]; + + uld_priv = ((u8 *)rxdblock_priv + ring->rxd_priv_size * i); + + /* pre-format Host_Control */ + rxdp->host_control = (u64)(size_t)uld_priv; + } + + __vxge_hw_ring_block_memblock_idx_set(item, memblock_index); + + if (is_last) { + /* link last one with first one */ + __vxge_hw_ring_rxdblock_link(mempoolh, ring, index, 0); + } + + if (index > 0) { + /* link this RxD block with previous one */ + __vxge_hw_ring_rxdblock_link(mempoolh, ring, index - 1, index); + } + + return; +} + +/* + * __vxge_hw_ring_initial_replenish - Initial replenish of RxDs + * This function replenishes the RxDs from reserve array to work array + */ +enum vxge_hw_status +vxge_hw_ring_replenish(struct __vxge_hw_ring *ring, u16 min_flag) +{ + void *rxd; + int i = 0; + struct __vxge_hw_channel *channel; + enum vxge_hw_status status = VXGE_HW_OK; + + channel = &ring->channel; + + while (vxge_hw_channel_dtr_count(channel) > 0) { + + status = vxge_hw_ring_rxd_reserve(ring, &rxd); + + vxge_assert(status == VXGE_HW_OK); + + if (ring->rxd_init) { + status = ring->rxd_init(rxd, channel->userdata); + if (status != VXGE_HW_OK) { + vxge_hw_ring_rxd_free(ring, rxd); + goto exit; + } + } + + vxge_hw_ring_rxd_post(ring, rxd); + if (min_flag) { + i++; + if (i == VXGE_HW_RING_MIN_BUFF_ALLOCATION) + break; + } + } + status = VXGE_HW_OK; +exit: + return status; +} + +/* + * __vxge_hw_ring_create - Create a Ring + * This function creates Ring and initializes it. + * + */ +enum vxge_hw_status +__vxge_hw_ring_create(struct __vxge_hw_vpath_handle *vp, + struct vxge_hw_ring_attr *attr) +{ + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_ring *ring; + u32 ring_length; + struct vxge_hw_ring_config *config; + struct __vxge_hw_device *hldev; + u32 vp_id; + struct vxge_hw_mempool_cbs ring_mp_callback; + + if ((vp == NULL) || (attr == NULL)) { + status = VXGE_HW_FAIL; + goto exit; + } + + hldev = vp->vpath->hldev; + vp_id = vp->vpath->vp_id; + + config = &hldev->config.vp_config[vp_id].ring; + + ring_length = config->ring_blocks * + vxge_hw_ring_rxds_per_block_get(config->buffer_mode); + + ring = (struct __vxge_hw_ring *)__vxge_hw_channel_allocate(vp, + VXGE_HW_CHANNEL_TYPE_RING, + ring_length, + attr->per_rxd_space, + attr->userdata); + + if (ring == NULL) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + vp->vpath->ringh = ring; + ring->vp_id = vp_id; + ring->vp_reg = vp->vpath->vp_reg; + ring->common_reg = hldev->common_reg; + ring->stats = &vp->vpath->sw_stats->ring_stats; + ring->config = config; + ring->callback = attr->callback; + ring->rxd_init = attr->rxd_init; + ring->rxd_term = attr->rxd_term; + ring->buffer_mode = config->buffer_mode; + ring->rxds_limit = config->rxds_limit; + + ring->rxd_size = vxge_hw_ring_rxd_size_get(config->buffer_mode); + ring->rxd_priv_size = + sizeof(struct __vxge_hw_ring_rxd_priv) + attr->per_rxd_space; + ring->per_rxd_space = attr->per_rxd_space; + + ring->rxd_priv_size = + ((ring->rxd_priv_size + VXGE_CACHE_LINE_SIZE - 1) / + VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE; + + /* how many RxDs can fit into one block. Depends on configured + * buffer_mode. */ + ring->rxds_per_block = + vxge_hw_ring_rxds_per_block_get(config->buffer_mode); + + /* calculate actual RxD block private size */ + ring->rxdblock_priv_size = ring->rxd_priv_size * ring->rxds_per_block; + ring_mp_callback.item_func_alloc = __vxge_hw_ring_mempool_item_alloc; + ring->mempool = __vxge_hw_mempool_create(hldev, + VXGE_HW_BLOCK_SIZE, + VXGE_HW_BLOCK_SIZE, + ring->rxdblock_priv_size, + ring->config->ring_blocks, + ring->config->ring_blocks, + &ring_mp_callback, + ring); + + if (ring->mempool == NULL) { + __vxge_hw_ring_delete(vp); + return VXGE_HW_ERR_OUT_OF_MEMORY; + } + + status = __vxge_hw_channel_initialize(&ring->channel); + if (status != VXGE_HW_OK) { + __vxge_hw_ring_delete(vp); + goto exit; + } + + /* Note: + * Specifying rxd_init callback means two things: + * 1) rxds need to be initialized by driver at channel-open time; + * 2) rxds need to be posted at channel-open time + * (that's what the initial_replenish() below does) + * Currently we don't have a case when the 1) is done without the 2). + */ + if (ring->rxd_init) { + status = vxge_hw_ring_replenish(ring, 1); + if (status != VXGE_HW_OK) { + __vxge_hw_ring_delete(vp); + goto exit; + } + } + + /* initial replenish will increment the counter in its post() routine, + * we have to reset it */ + ring->stats->common_stats.usage_cnt = 0; +exit: + return status; +} + +/* + * __vxge_hw_ring_abort - Returns the RxD + * This function terminates the RxDs of ring + */ +enum vxge_hw_status __vxge_hw_ring_abort(struct __vxge_hw_ring *ring) +{ + void *rxdh; + struct __vxge_hw_channel *channel; + + channel = &ring->channel; + + for (;;) { + vxge_hw_channel_dtr_try_complete(channel, &rxdh); + + if (rxdh == NULL) + break; + + vxge_hw_channel_dtr_complete(channel); + + if (ring->rxd_term) + ring->rxd_term(rxdh, VXGE_HW_RXD_STATE_POSTED, + channel->userdata); + + vxge_hw_channel_dtr_free(channel, rxdh); + } + + return VXGE_HW_OK; +} + +/* + * __vxge_hw_ring_reset - Resets the ring + * This function resets the ring during vpath reset operation + */ +enum vxge_hw_status __vxge_hw_ring_reset(struct __vxge_hw_ring *ring) +{ + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_channel *channel; + + channel = &ring->channel; + + __vxge_hw_ring_abort(ring); + + status = __vxge_hw_channel_reset(channel); + + if (status != VXGE_HW_OK) + goto exit; + + if (ring->rxd_init) { + status = vxge_hw_ring_replenish(ring, 1); + if (status != VXGE_HW_OK) + goto exit; + } +exit: + return status; +} + +/* + * __vxge_hw_ring_delete - Removes the ring + * This function freeup the memory pool and removes the ring + */ +enum vxge_hw_status __vxge_hw_ring_delete(struct __vxge_hw_vpath_handle *vp) +{ + struct __vxge_hw_ring *ring = vp->vpath->ringh; + + __vxge_hw_ring_abort(ring); + + if (ring->mempool) + __vxge_hw_mempool_destroy(ring->mempool); + + vp->vpath->ringh = NULL; + __vxge_hw_channel_free(&ring->channel); + + return VXGE_HW_OK; +} + +/* + * __vxge_hw_mempool_grow + * Will resize mempool up to %num_allocate value. + */ +enum vxge_hw_status +__vxge_hw_mempool_grow(struct vxge_hw_mempool *mempool, u32 num_allocate, + u32 *num_allocated) +{ + u32 i, first_time = mempool->memblocks_allocated == 0 ? 1 : 0; + u32 n_items = mempool->items_per_memblock; + u32 start_block_idx = mempool->memblocks_allocated; + u32 end_block_idx = mempool->memblocks_allocated + num_allocate; + enum vxge_hw_status status = VXGE_HW_OK; + + *num_allocated = 0; + + if (end_block_idx > mempool->memblocks_max) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + for (i = start_block_idx; i < end_block_idx; i++) { + u32 j; + u32 is_last = ((end_block_idx - 1) == i); + struct vxge_hw_mempool_dma *dma_object = + mempool->memblocks_dma_arr + i; + void *the_memblock; + + /* allocate memblock's private part. Each DMA memblock + * has a space allocated for item's private usage upon + * mempool's user request. Each time mempool grows, it will + * allocate new memblock and its private part at once. + * This helps to minimize memory usage a lot. */ + mempool->memblocks_priv_arr[i] = + vmalloc(mempool->items_priv_size * n_items); + if (mempool->memblocks_priv_arr[i] == NULL) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + memset(mempool->memblocks_priv_arr[i], 0, + mempool->items_priv_size * n_items); + + /* allocate DMA-capable memblock */ + mempool->memblocks_arr[i] = + __vxge_hw_blockpool_malloc(mempool->devh, + mempool->memblock_size, dma_object); + if (mempool->memblocks_arr[i] == NULL) { + vfree(mempool->memblocks_priv_arr[i]); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + (*num_allocated)++; + mempool->memblocks_allocated++; + + memset(mempool->memblocks_arr[i], 0, mempool->memblock_size); + + the_memblock = mempool->memblocks_arr[i]; + + /* fill the items hash array */ + for (j = 0; j < n_items; j++) { + u32 index = i * n_items + j; + + if (first_time && index >= mempool->items_initial) + break; + + mempool->items_arr[index] = + ((char *)the_memblock + j*mempool->item_size); + + /* let caller to do more job on each item */ + if (mempool->item_func_alloc != NULL) + mempool->item_func_alloc(mempool, i, + dma_object, index, is_last); + + mempool->items_current = index + 1; + } + + if (first_time && mempool->items_current == + mempool->items_initial) + break; + } +exit: + return status; +} + +/* + * vxge_hw_mempool_create + * This function will create memory pool object. Pool may grow but will + * never shrink. Pool consists of number of dynamically allocated blocks + * with size enough to hold %items_initial number of items. Memory is + * DMA-able but client must map/unmap before interoperating with the device. + */ +struct vxge_hw_mempool* +__vxge_hw_mempool_create( + struct __vxge_hw_device *devh, + u32 memblock_size, + u32 item_size, + u32 items_priv_size, + u32 items_initial, + u32 items_max, + struct vxge_hw_mempool_cbs *mp_callback, + void *userdata) +{ + enum vxge_hw_status status = VXGE_HW_OK; + u32 memblocks_to_allocate; + struct vxge_hw_mempool *mempool = NULL; + u32 allocated; + + if (memblock_size < item_size) { + status = VXGE_HW_FAIL; + goto exit; + } + + mempool = (struct vxge_hw_mempool *) + vmalloc(sizeof(struct vxge_hw_mempool)); + if (mempool == NULL) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + memset(mempool, 0, sizeof(struct vxge_hw_mempool)); + + mempool->devh = devh; + mempool->memblock_size = memblock_size; + mempool->items_max = items_max; + mempool->items_initial = items_initial; + mempool->item_size = item_size; + mempool->items_priv_size = items_priv_size; + mempool->item_func_alloc = mp_callback->item_func_alloc; + mempool->userdata = userdata; + + mempool->memblocks_allocated = 0; + + mempool->items_per_memblock = memblock_size / item_size; + + mempool->memblocks_max = (items_max + mempool->items_per_memblock - 1) / + mempool->items_per_memblock; + + /* allocate array of memblocks */ + mempool->memblocks_arr = + (void **) vmalloc(sizeof(void *) * mempool->memblocks_max); + if (mempool->memblocks_arr == NULL) { + __vxge_hw_mempool_destroy(mempool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + mempool = NULL; + goto exit; + } + memset(mempool->memblocks_arr, 0, + sizeof(void *) * mempool->memblocks_max); + + /* allocate array of private parts of items per memblocks */ + mempool->memblocks_priv_arr = + (void **) vmalloc(sizeof(void *) * mempool->memblocks_max); + if (mempool->memblocks_priv_arr == NULL) { + __vxge_hw_mempool_destroy(mempool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + mempool = NULL; + goto exit; + } + memset(mempool->memblocks_priv_arr, 0, + sizeof(void *) * mempool->memblocks_max); + + /* allocate array of memblocks DMA objects */ + mempool->memblocks_dma_arr = (struct vxge_hw_mempool_dma *) + vmalloc(sizeof(struct vxge_hw_mempool_dma) * + mempool->memblocks_max); + + if (mempool->memblocks_dma_arr == NULL) { + __vxge_hw_mempool_destroy(mempool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + mempool = NULL; + goto exit; + } + memset(mempool->memblocks_dma_arr, 0, + sizeof(struct vxge_hw_mempool_dma) * + mempool->memblocks_max); + + /* allocate hash array of items */ + mempool->items_arr = + (void **) vmalloc(sizeof(void *) * mempool->items_max); + if (mempool->items_arr == NULL) { + __vxge_hw_mempool_destroy(mempool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + mempool = NULL; + goto exit; + } + memset(mempool->items_arr, 0, sizeof(void *) * mempool->items_max); + + /* calculate initial number of memblocks */ + memblocks_to_allocate = (mempool->items_initial + + mempool->items_per_memblock - 1) / + mempool->items_per_memblock; + + /* pre-allocate the mempool */ + status = __vxge_hw_mempool_grow(mempool, memblocks_to_allocate, + &allocated); + if (status != VXGE_HW_OK) { + __vxge_hw_mempool_destroy(mempool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + mempool = NULL; + goto exit; + } + +exit: + return mempool; +} + +/* + * vxge_hw_mempool_destroy + */ +void __vxge_hw_mempool_destroy(struct vxge_hw_mempool *mempool) +{ + u32 i, j; + struct __vxge_hw_device *devh = mempool->devh; + + for (i = 0; i < mempool->memblocks_allocated; i++) { + struct vxge_hw_mempool_dma *dma_object; + + vxge_assert(mempool->memblocks_arr[i]); + vxge_assert(mempool->memblocks_dma_arr + i); + + dma_object = mempool->memblocks_dma_arr + i; + + for (j = 0; j < mempool->items_per_memblock; j++) { + u32 index = i * mempool->items_per_memblock + j; + + /* to skip last partially filled(if any) memblock */ + if (index >= mempool->items_current) + break; + } + + vfree(mempool->memblocks_priv_arr[i]); + + __vxge_hw_blockpool_free(devh, mempool->memblocks_arr[i], + mempool->memblock_size, dma_object); + } + + if (mempool->items_arr) + vfree(mempool->items_arr); + + if (mempool->memblocks_dma_arr) + vfree(mempool->memblocks_dma_arr); + + if (mempool->memblocks_priv_arr) + vfree(mempool->memblocks_priv_arr); + + if (mempool->memblocks_arr) + vfree(mempool->memblocks_arr); + + vfree(mempool); +} + +/* + * __vxge_hw_device_fifo_config_check - Check fifo configuration. + * Check the fifo configuration + */ +enum vxge_hw_status +__vxge_hw_device_fifo_config_check(struct vxge_hw_fifo_config *fifo_config) +{ + if ((fifo_config->fifo_blocks < VXGE_HW_MIN_FIFO_BLOCKS) || + (fifo_config->fifo_blocks > VXGE_HW_MAX_FIFO_BLOCKS)) + return VXGE_HW_BADCFG_FIFO_BLOCKS; + + return VXGE_HW_OK; +} + +/* + * __vxge_hw_device_vpath_config_check - Check vpath configuration. + * Check the vpath configuration + */ +enum vxge_hw_status +__vxge_hw_device_vpath_config_check(struct vxge_hw_vp_config *vp_config) +{ + enum vxge_hw_status status; + + if ((vp_config->min_bandwidth < VXGE_HW_VPATH_BANDWIDTH_MIN) || + (vp_config->min_bandwidth > + VXGE_HW_VPATH_BANDWIDTH_MAX)) + return VXGE_HW_BADCFG_VPATH_MIN_BANDWIDTH; + + status = __vxge_hw_device_fifo_config_check(&vp_config->fifo); + if (status != VXGE_HW_OK) + return status; + + if ((vp_config->mtu != VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) && + ((vp_config->mtu < VXGE_HW_VPATH_MIN_INITIAL_MTU) || + (vp_config->mtu > VXGE_HW_VPATH_MAX_INITIAL_MTU))) + return VXGE_HW_BADCFG_VPATH_MTU; + + if ((vp_config->rpa_strip_vlan_tag != + VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) && + (vp_config->rpa_strip_vlan_tag != + VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE) && + (vp_config->rpa_strip_vlan_tag != + VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_DISABLE)) + return VXGE_HW_BADCFG_VPATH_RPA_STRIP_VLAN_TAG; + + return VXGE_HW_OK; +} + +/* + * __vxge_hw_device_config_check - Check device configuration. + * Check the device configuration + */ +enum vxge_hw_status +__vxge_hw_device_config_check(struct vxge_hw_device_config *new_config) +{ + u32 i; + enum vxge_hw_status status; + + if ((new_config->intr_mode != VXGE_HW_INTR_MODE_IRQLINE) && + (new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX) && + (new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) && + (new_config->intr_mode != VXGE_HW_INTR_MODE_DEF)) + return VXGE_HW_BADCFG_INTR_MODE; + + if ((new_config->rts_mac_en != VXGE_HW_RTS_MAC_DISABLE) && + (new_config->rts_mac_en != VXGE_HW_RTS_MAC_ENABLE)) + return VXGE_HW_BADCFG_RTS_MAC_EN; + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + status = __vxge_hw_device_vpath_config_check( + &new_config->vp_config[i]); + if (status != VXGE_HW_OK) + return status; + } + + return VXGE_HW_OK; +} + +/* + * vxge_hw_device_config_default_get - Initialize device config with defaults. + * Initialize Titan device config with default values. + */ +enum vxge_hw_status __devinit +vxge_hw_device_config_default_get(struct vxge_hw_device_config *device_config) +{ + u32 i; + + device_config->dma_blockpool_initial = + VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE; + device_config->dma_blockpool_max = VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE; + device_config->intr_mode = VXGE_HW_INTR_MODE_DEF; + device_config->rth_en = VXGE_HW_RTH_DEFAULT; + device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_DEFAULT; + device_config->device_poll_millis = VXGE_HW_DEF_DEVICE_POLL_MILLIS; + device_config->rts_mac_en = VXGE_HW_RTS_MAC_DEFAULT; + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + + device_config->vp_config[i].vp_id = i; + + device_config->vp_config[i].min_bandwidth = + VXGE_HW_VPATH_BANDWIDTH_DEFAULT; + + device_config->vp_config[i].ring.enable = VXGE_HW_RING_DEFAULT; + + device_config->vp_config[i].ring.ring_blocks = + VXGE_HW_DEF_RING_BLOCKS; + + device_config->vp_config[i].ring.buffer_mode = + VXGE_HW_RING_RXD_BUFFER_MODE_DEFAULT; + + device_config->vp_config[i].ring.scatter_mode = + VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT; + + device_config->vp_config[i].ring.rxds_limit = + VXGE_HW_DEF_RING_RXDS_LIMIT; + + device_config->vp_config[i].fifo.enable = VXGE_HW_FIFO_ENABLE; + + device_config->vp_config[i].fifo.fifo_blocks = + VXGE_HW_MIN_FIFO_BLOCKS; + + device_config->vp_config[i].fifo.max_frags = + VXGE_HW_MAX_FIFO_FRAGS; + + device_config->vp_config[i].fifo.memblock_size = + VXGE_HW_DEF_FIFO_MEMBLOCK_SIZE; + + device_config->vp_config[i].fifo.alignment_size = + VXGE_HW_DEF_FIFO_ALIGNMENT_SIZE; + + device_config->vp_config[i].fifo.intr = + VXGE_HW_FIFO_QUEUE_INTR_DEFAULT; + + device_config->vp_config[i].fifo.no_snoop_bits = + VXGE_HW_FIFO_NO_SNOOP_DEFAULT; + device_config->vp_config[i].tti.intr_enable = + VXGE_HW_TIM_INTR_DEFAULT; + + device_config->vp_config[i].tti.btimer_val = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.timer_ac_en = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.timer_ci_en = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.timer_ri_en = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.rtimer_val = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.util_sel = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.ltimer_val = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.urange_a = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.uec_a = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.urange_b = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.uec_b = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.urange_c = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.uec_c = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].tti.uec_d = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.intr_enable = + VXGE_HW_TIM_INTR_DEFAULT; + + device_config->vp_config[i].rti.btimer_val = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.timer_ac_en = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.timer_ci_en = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.timer_ri_en = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.rtimer_val = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.util_sel = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.ltimer_val = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.urange_a = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.uec_a = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.urange_b = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.uec_b = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.urange_c = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.uec_c = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].rti.uec_d = + VXGE_HW_USE_FLASH_DEFAULT; + + device_config->vp_config[i].mtu = + VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU; + + device_config->vp_config[i].rpa_strip_vlan_tag = + VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT; + } + + return VXGE_HW_OK; +} + +/* + * _hw_legacy_swapper_set - Set the swapper bits for the legacy secion. + * Set the swapper bits appropriately for the lagacy section. + */ +enum vxge_hw_status +__vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + + val64 = readq(&legacy_reg->toc_swapper_fb); + + wmb(); + + switch (val64) { + + case VXGE_HW_SWAPPER_INITIAL_VALUE: + return status; + + case VXGE_HW_SWAPPER_BYTE_SWAPPED_BIT_FLIPPED: + writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE, + &legacy_reg->pifm_rd_swap_en); + writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE, + &legacy_reg->pifm_rd_flip_en); + writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE, + &legacy_reg->pifm_wr_swap_en); + writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE, + &legacy_reg->pifm_wr_flip_en); + break; + + case VXGE_HW_SWAPPER_BYTE_SWAPPED: + writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE, + &legacy_reg->pifm_rd_swap_en); + writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE, + &legacy_reg->pifm_wr_swap_en); + break; + + case VXGE_HW_SWAPPER_BIT_FLIPPED: + writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE, + &legacy_reg->pifm_rd_flip_en); + writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE, + &legacy_reg->pifm_wr_flip_en); + break; + } + + wmb(); + + val64 = readq(&legacy_reg->toc_swapper_fb); + + if (val64 != VXGE_HW_SWAPPER_INITIAL_VALUE) + status = VXGE_HW_ERR_SWAPPER_CTRL; + + return status; +} + +/* + * __vxge_hw_vpath_swapper_set - Set the swapper bits for the vpath. + * Set the swapper bits appropriately for the vpath. + */ +enum vxge_hw_status +__vxge_hw_vpath_swapper_set(struct vxge_hw_vpath_reg __iomem *vpath_reg) +{ +#ifndef __BIG_ENDIAN + u64 val64; + + val64 = readq(&vpath_reg->vpath_general_cfg1); + wmb(); + val64 |= VXGE_HW_VPATH_GENERAL_CFG1_CTL_BYTE_SWAPEN; + writeq(val64, &vpath_reg->vpath_general_cfg1); + wmb(); +#endif + return VXGE_HW_OK; +} + +/* + * __vxge_hw_kdfc_swapper_set - Set the swapper bits for the kdfc. + * Set the swapper bits appropriately for the vpath. + */ +enum vxge_hw_status +__vxge_hw_kdfc_swapper_set( + struct vxge_hw_legacy_reg __iomem *legacy_reg, + struct vxge_hw_vpath_reg __iomem *vpath_reg) +{ + u64 val64; + + val64 = readq(&legacy_reg->pifm_wr_swap_en); + + if (val64 == VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE) { + val64 = readq(&vpath_reg->kdfcctl_cfg0); + wmb(); + + val64 |= VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO0 | + VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO1 | + VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO2; + + writeq(val64, &vpath_reg->kdfcctl_cfg0); + wmb(); + } + + return VXGE_HW_OK; +} + +/* + * vxge_hw_mgmt_device_config - Retrieve device configuration. + * Get device configuration. Permits to retrieve at run-time configuration + * values that were used to initialize and configure the device. + */ +enum vxge_hw_status +vxge_hw_mgmt_device_config(struct __vxge_hw_device *hldev, + struct vxge_hw_device_config *dev_config, int size) +{ + + if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) + return VXGE_HW_ERR_INVALID_DEVICE; + + if (size != sizeof(struct vxge_hw_device_config)) + return VXGE_HW_ERR_VERSION_CONFLICT; + + memcpy(dev_config, &hldev->config, + sizeof(struct vxge_hw_device_config)); + + return VXGE_HW_OK; +} + +/* + * vxge_hw_mgmt_reg_read - Read Titan register. + */ +enum vxge_hw_status +vxge_hw_mgmt_reg_read(struct __vxge_hw_device *hldev, + enum vxge_hw_mgmt_reg_type type, + u32 index, u32 offset, u64 *value) +{ + enum vxge_hw_status status = VXGE_HW_OK; + + if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) { + status = VXGE_HW_ERR_INVALID_DEVICE; + goto exit; + } + + switch (type) { + case vxge_hw_mgmt_reg_type_legacy: + if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + *value = readq((void __iomem *)hldev->legacy_reg + offset); + break; + case vxge_hw_mgmt_reg_type_toc: + if (offset > sizeof(struct vxge_hw_toc_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + *value = readq((void __iomem *)hldev->toc_reg + offset); + break; + case vxge_hw_mgmt_reg_type_common: + if (offset > sizeof(struct vxge_hw_common_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + *value = readq((void __iomem *)hldev->common_reg + offset); + break; + case vxge_hw_mgmt_reg_type_mrpcim: + if (!(hldev->access_rights & + VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) { + status = VXGE_HW_ERR_PRIVILAGED_OPEARATION; + break; + } + if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + *value = readq((void __iomem *)hldev->mrpcim_reg + offset); + break; + case vxge_hw_mgmt_reg_type_srpcim: + if (!(hldev->access_rights & + VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) { + status = VXGE_HW_ERR_PRIVILAGED_OPEARATION; + break; + } + if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) { + status = VXGE_HW_ERR_INVALID_INDEX; + break; + } + if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + *value = readq((void __iomem *)hldev->srpcim_reg[index] + + offset); + break; + case vxge_hw_mgmt_reg_type_vpmgmt: + if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) || + (!(hldev->vpath_assignments & vxge_mBIT(index)))) { + status = VXGE_HW_ERR_INVALID_INDEX; + break; + } + if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + *value = readq((void __iomem *)hldev->vpmgmt_reg[index] + + offset); + break; + case vxge_hw_mgmt_reg_type_vpath: + if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) || + (!(hldev->vpath_assignments & vxge_mBIT(index)))) { + status = VXGE_HW_ERR_INVALID_INDEX; + break; + } + if (index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) { + status = VXGE_HW_ERR_INVALID_INDEX; + break; + } + if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + *value = readq((void __iomem *)hldev->vpath_reg[index] + + offset); + break; + default: + status = VXGE_HW_ERR_INVALID_TYPE; + break; + } + +exit: + return status; +} + +/* + * vxge_hw_mgmt_reg_Write - Write Titan register. + */ +enum vxge_hw_status +vxge_hw_mgmt_reg_write(struct __vxge_hw_device *hldev, + enum vxge_hw_mgmt_reg_type type, + u32 index, u32 offset, u64 value) +{ + enum vxge_hw_status status = VXGE_HW_OK; + + if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) { + status = VXGE_HW_ERR_INVALID_DEVICE; + goto exit; + } + + switch (type) { + case vxge_hw_mgmt_reg_type_legacy: + if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + writeq(value, (void __iomem *)hldev->legacy_reg + offset); + break; + case vxge_hw_mgmt_reg_type_toc: + if (offset > sizeof(struct vxge_hw_toc_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + writeq(value, (void __iomem *)hldev->toc_reg + offset); + break; + case vxge_hw_mgmt_reg_type_common: + if (offset > sizeof(struct vxge_hw_common_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + writeq(value, (void __iomem *)hldev->common_reg + offset); + break; + case vxge_hw_mgmt_reg_type_mrpcim: + if (!(hldev->access_rights & + VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) { + status = VXGE_HW_ERR_PRIVILAGED_OPEARATION; + break; + } + if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + writeq(value, (void __iomem *)hldev->mrpcim_reg + offset); + break; + case vxge_hw_mgmt_reg_type_srpcim: + if (!(hldev->access_rights & + VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) { + status = VXGE_HW_ERR_PRIVILAGED_OPEARATION; + break; + } + if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) { + status = VXGE_HW_ERR_INVALID_INDEX; + break; + } + if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + writeq(value, (void __iomem *)hldev->srpcim_reg[index] + + offset); + + break; + case vxge_hw_mgmt_reg_type_vpmgmt: + if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) || + (!(hldev->vpath_assignments & vxge_mBIT(index)))) { + status = VXGE_HW_ERR_INVALID_INDEX; + break; + } + if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + writeq(value, (void __iomem *)hldev->vpmgmt_reg[index] + + offset); + break; + case vxge_hw_mgmt_reg_type_vpath: + if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES-1) || + (!(hldev->vpath_assignments & vxge_mBIT(index)))) { + status = VXGE_HW_ERR_INVALID_INDEX; + break; + } + if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) { + status = VXGE_HW_ERR_INVALID_OFFSET; + break; + } + writeq(value, (void __iomem *)hldev->vpath_reg[index] + + offset); + break; + default: + status = VXGE_HW_ERR_INVALID_TYPE; + break; + } +exit: + return status; +} + +/* + * __vxge_hw_fifo_mempool_item_alloc - Allocate List blocks for TxD + * list callback + * This function is callback passed to __vxge_hw_mempool_create to create memory + * pool for TxD list + */ +static void +__vxge_hw_fifo_mempool_item_alloc( + struct vxge_hw_mempool *mempoolh, + u32 memblock_index, struct vxge_hw_mempool_dma *dma_object, + u32 index, u32 is_last) +{ + u32 memblock_item_idx; + struct __vxge_hw_fifo_txdl_priv *txdl_priv; + struct vxge_hw_fifo_txd *txdp = + (struct vxge_hw_fifo_txd *)mempoolh->items_arr[index]; + struct __vxge_hw_fifo *fifo = + (struct __vxge_hw_fifo *)mempoolh->userdata; + void *memblock = mempoolh->memblocks_arr[memblock_index]; + + vxge_assert(txdp); + + txdp->host_control = (u64) (size_t) + __vxge_hw_mempool_item_priv(mempoolh, memblock_index, txdp, + &memblock_item_idx); + + txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdp); + + vxge_assert(txdl_priv); + + fifo->channel.reserve_arr[fifo->channel.reserve_ptr - 1 - index] = txdp; + + /* pre-format HW's TxDL's private */ + txdl_priv->dma_offset = (char *)txdp - (char *)memblock; + txdl_priv->dma_addr = dma_object->addr + txdl_priv->dma_offset; + txdl_priv->dma_handle = dma_object->handle; + txdl_priv->memblock = memblock; + txdl_priv->first_txdp = txdp; + txdl_priv->next_txdl_priv = NULL; + txdl_priv->alloc_frags = 0; + + return; +} + +/* + * __vxge_hw_fifo_create - Create a FIFO + * This function creates FIFO and initializes it. + */ +enum vxge_hw_status +__vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp, + struct vxge_hw_fifo_attr *attr) +{ + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_fifo *fifo; + struct vxge_hw_fifo_config *config; + u32 txdl_size, txdl_per_memblock; + struct vxge_hw_mempool_cbs fifo_mp_callback; + struct __vxge_hw_virtualpath *vpath; + + if ((vp == NULL) || (attr == NULL)) { + status = VXGE_HW_ERR_INVALID_HANDLE; + goto exit; + } + vpath = vp->vpath; + config = &vpath->hldev->config.vp_config[vpath->vp_id].fifo; + + txdl_size = config->max_frags * sizeof(struct vxge_hw_fifo_txd); + + txdl_per_memblock = config->memblock_size / txdl_size; + + fifo = (struct __vxge_hw_fifo *)__vxge_hw_channel_allocate(vp, + VXGE_HW_CHANNEL_TYPE_FIFO, + config->fifo_blocks * txdl_per_memblock, + attr->per_txdl_space, attr->userdata); + + if (fifo == NULL) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + vpath->fifoh = fifo; + fifo->nofl_db = vpath->nofl_db; + + fifo->vp_id = vpath->vp_id; + fifo->vp_reg = vpath->vp_reg; + fifo->stats = &vpath->sw_stats->fifo_stats; + + fifo->config = config; + + /* apply "interrupts per txdl" attribute */ + fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_UTILZ; + + if (fifo->config->intr) + fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_PER_LIST; + + fifo->no_snoop_bits = config->no_snoop_bits; + + /* + * FIFO memory management strategy: + * + * TxDL split into three independent parts: + * - set of TxD's + * - TxD HW private part + * - driver private part + * + * Adaptative memory allocation used. i.e. Memory allocated on + * demand with the size which will fit into one memory block. + * One memory block may contain more than one TxDL. + * + * During "reserve" operations more memory can be allocated on demand + * for example due to FIFO full condition. + * + * Pool of memory memblocks never shrinks except in __vxge_hw_fifo_close + * routine which will essentially stop the channel and free resources. + */ + + /* TxDL common private size == TxDL private + driver private */ + fifo->priv_size = + sizeof(struct __vxge_hw_fifo_txdl_priv) + attr->per_txdl_space; + fifo->priv_size = ((fifo->priv_size + VXGE_CACHE_LINE_SIZE - 1) / + VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE; + + fifo->per_txdl_space = attr->per_txdl_space; + + /* recompute txdl size to be cacheline aligned */ + fifo->txdl_size = txdl_size; + fifo->txdl_per_memblock = txdl_per_memblock; + + fifo->txdl_term = attr->txdl_term; + fifo->callback = attr->callback; + + if (fifo->txdl_per_memblock == 0) { + __vxge_hw_fifo_delete(vp); + status = VXGE_HW_ERR_INVALID_BLOCK_SIZE; + goto exit; + } + + fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc; + + fifo->mempool = + __vxge_hw_mempool_create(vpath->hldev, + fifo->config->memblock_size, + fifo->txdl_size, + fifo->priv_size, + (fifo->config->fifo_blocks * fifo->txdl_per_memblock), + (fifo->config->fifo_blocks * fifo->txdl_per_memblock), + &fifo_mp_callback, + fifo); + + if (fifo->mempool == NULL) { + __vxge_hw_fifo_delete(vp); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + status = __vxge_hw_channel_initialize(&fifo->channel); + if (status != VXGE_HW_OK) { + __vxge_hw_fifo_delete(vp); + goto exit; + } + + vxge_assert(fifo->channel.reserve_ptr); +exit: + return status; +} + +/* + * __vxge_hw_fifo_abort - Returns the TxD + * This function terminates the TxDs of fifo + */ +enum vxge_hw_status __vxge_hw_fifo_abort(struct __vxge_hw_fifo *fifo) +{ + void *txdlh; + + for (;;) { + vxge_hw_channel_dtr_try_complete(&fifo->channel, &txdlh); + + if (txdlh == NULL) + break; + + vxge_hw_channel_dtr_complete(&fifo->channel); + + if (fifo->txdl_term) { + fifo->txdl_term(txdlh, + VXGE_HW_TXDL_STATE_POSTED, + fifo->channel.userdata); + } + + vxge_hw_channel_dtr_free(&fifo->channel, txdlh); + } + + return VXGE_HW_OK; +} + +/* + * __vxge_hw_fifo_reset - Resets the fifo + * This function resets the fifo during vpath reset operation + */ +enum vxge_hw_status __vxge_hw_fifo_reset(struct __vxge_hw_fifo *fifo) +{ + enum vxge_hw_status status = VXGE_HW_OK; + + __vxge_hw_fifo_abort(fifo); + status = __vxge_hw_channel_reset(&fifo->channel); + + return status; +} + +/* + * __vxge_hw_fifo_delete - Removes the FIFO + * This function freeup the memory pool and removes the FIFO + */ +enum vxge_hw_status __vxge_hw_fifo_delete(struct __vxge_hw_vpath_handle *vp) +{ + struct __vxge_hw_fifo *fifo = vp->vpath->fifoh; + + __vxge_hw_fifo_abort(fifo); + + if (fifo->mempool) + __vxge_hw_mempool_destroy(fifo->mempool); + + vp->vpath->fifoh = NULL; + + __vxge_hw_channel_free(&fifo->channel); + + return VXGE_HW_OK; +} + +/* + * __vxge_hw_vpath_pci_read - Read the content of given address + * in pci config space. + * Read from the vpath pci config space. + */ +enum vxge_hw_status +__vxge_hw_vpath_pci_read(struct __vxge_hw_virtualpath *vpath, + u32 phy_func_0, u32 offset, u32 *val) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg; + + val64 = VXGE_HW_PCI_CONFIG_ACCESS_CFG1_ADDRESS(offset); + + if (phy_func_0) + val64 |= VXGE_HW_PCI_CONFIG_ACCESS_CFG1_SEL_FUNC0; + + writeq(val64, &vp_reg->pci_config_access_cfg1); + wmb(); + writeq(VXGE_HW_PCI_CONFIG_ACCESS_CFG2_REQ, + &vp_reg->pci_config_access_cfg2); + wmb(); + + status = __vxge_hw_device_register_poll( + &vp_reg->pci_config_access_cfg2, + VXGE_HW_INTR_MASK_ALL, VXGE_HW_DEF_DEVICE_POLL_MILLIS); + + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&vp_reg->pci_config_access_status); + + if (val64 & VXGE_HW_PCI_CONFIG_ACCESS_STATUS_ACCESS_ERR) { + status = VXGE_HW_FAIL; + *val = 0; + } else + *val = (u32)vxge_bVALn(val64, 32, 32); +exit: + return status; +} + +/* + * __vxge_hw_vpath_func_id_get - Get the function id of the vpath. + * Returns the function number of the vpath. + */ +u32 +__vxge_hw_vpath_func_id_get(u32 vp_id, + struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg) +{ + u64 val64; + + val64 = readq(&vpmgmt_reg->vpath_to_func_map_cfg1); + + return + (u32)VXGE_HW_VPATH_TO_FUNC_MAP_CFG1_GET_VPATH_TO_FUNC_MAP_CFG1(val64); +} + +/* + * __vxge_hw_read_rts_ds - Program RTS steering critieria + */ +static inline void +__vxge_hw_read_rts_ds(struct vxge_hw_vpath_reg __iomem *vpath_reg, + u64 dta_struct_sel) +{ + writeq(0, &vpath_reg->rts_access_steer_ctrl); + wmb(); + writeq(dta_struct_sel, &vpath_reg->rts_access_steer_data0); + writeq(0, &vpath_reg->rts_access_steer_data1); + wmb(); + return; +} + + +/* + * __vxge_hw_vpath_card_info_get - Get the serial numbers, + * part number and product description. + */ +enum vxge_hw_status +__vxge_hw_vpath_card_info_get( + u32 vp_id, + struct vxge_hw_vpath_reg __iomem *vpath_reg, + struct vxge_hw_device_hw_info *hw_info) +{ + u32 i, j; + u64 val64; + u64 data1 = 0ULL; + u64 data2 = 0ULL; + enum vxge_hw_status status = VXGE_HW_OK; + u8 *serial_number = hw_info->serial_number; + u8 *part_number = hw_info->part_number; + u8 *product_desc = hw_info->product_desc; + + __vxge_hw_read_rts_ds(vpath_reg, + VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_SERIAL_NUMBER); + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION( + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL( + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0); + + status = __vxge_hw_pio_mem_write64(val64, + &vpath_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + VXGE_HW_DEF_DEVICE_POLL_MILLIS); + + if (status != VXGE_HW_OK) + return status; + + val64 = readq(&vpath_reg->rts_access_steer_ctrl); + + if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) { + data1 = readq(&vpath_reg->rts_access_steer_data0); + ((u64 *)serial_number)[0] = be64_to_cpu(data1); + + data2 = readq(&vpath_reg->rts_access_steer_data1); + ((u64 *)serial_number)[1] = be64_to_cpu(data2); + status = VXGE_HW_OK; + } else + *serial_number = 0; + + __vxge_hw_read_rts_ds(vpath_reg, + VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PART_NUMBER); + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION( + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL( + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0); + + status = __vxge_hw_pio_mem_write64(val64, + &vpath_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + VXGE_HW_DEF_DEVICE_POLL_MILLIS); + + if (status != VXGE_HW_OK) + return status; + + val64 = readq(&vpath_reg->rts_access_steer_ctrl); + + if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) { + + data1 = readq(&vpath_reg->rts_access_steer_data0); + ((u64 *)part_number)[0] = be64_to_cpu(data1); + + data2 = readq(&vpath_reg->rts_access_steer_data1); + ((u64 *)part_number)[1] = be64_to_cpu(data2); + + status = VXGE_HW_OK; + + } else + *part_number = 0; + + j = 0; + + for (i = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_0; + i <= VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_3; i++) { + + __vxge_hw_read_rts_ds(vpath_reg, i); + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION( + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL( + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0); + + status = __vxge_hw_pio_mem_write64(val64, + &vpath_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + VXGE_HW_DEF_DEVICE_POLL_MILLIS); + + if (status != VXGE_HW_OK) + return status; + + val64 = readq(&vpath_reg->rts_access_steer_ctrl); + + if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) { + + data1 = readq(&vpath_reg->rts_access_steer_data0); + ((u64 *)product_desc)[j++] = be64_to_cpu(data1); + + data2 = readq(&vpath_reg->rts_access_steer_data1); + ((u64 *)product_desc)[j++] = be64_to_cpu(data2); + + status = VXGE_HW_OK; + } else + *product_desc = 0; + } + + return status; +} + +/* + * __vxge_hw_vpath_fw_ver_get - Get the fw version + * Returns FW Version + */ +enum vxge_hw_status +__vxge_hw_vpath_fw_ver_get( + u32 vp_id, + struct vxge_hw_vpath_reg __iomem *vpath_reg, + struct vxge_hw_device_hw_info *hw_info) +{ + u64 val64; + u64 data1 = 0ULL; + u64 data2 = 0ULL; + struct vxge_hw_device_version *fw_version = &hw_info->fw_version; + struct vxge_hw_device_date *fw_date = &hw_info->fw_date; + struct vxge_hw_device_version *flash_version = &hw_info->flash_version; + struct vxge_hw_device_date *flash_date = &hw_info->flash_date; + enum vxge_hw_status status = VXGE_HW_OK; + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION( + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL( + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0); + + status = __vxge_hw_pio_mem_write64(val64, + &vpath_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + VXGE_HW_DEF_DEVICE_POLL_MILLIS); + + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&vpath_reg->rts_access_steer_ctrl); + + if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) { + + data1 = readq(&vpath_reg->rts_access_steer_data0); + data2 = readq(&vpath_reg->rts_access_steer_data1); + + fw_date->day = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_DAY( + data1); + fw_date->month = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MONTH( + data1); + fw_date->year = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_YEAR( + data1); + + snprintf(fw_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d", + fw_date->month, fw_date->day, fw_date->year); + + fw_version->major = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data1); + fw_version->minor = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data1); + fw_version->build = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data1); + + snprintf(fw_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d", + fw_version->major, fw_version->minor, fw_version->build); + + flash_date->day = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_DAY(data2); + flash_date->month = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MONTH(data2); + flash_date->year = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_YEAR(data2); + + snprintf(flash_date->date, VXGE_HW_FW_STRLEN, + "%2.2d/%2.2d/%4.4d", + flash_date->month, flash_date->day, flash_date->year); + + flash_version->major = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MAJOR(data2); + flash_version->minor = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MINOR(data2); + flash_version->build = + (u32)VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_BUILD(data2); + + snprintf(flash_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d", + flash_version->major, flash_version->minor, + flash_version->build); + + status = VXGE_HW_OK; + + } else + status = VXGE_HW_FAIL; +exit: + return status; +} + +/* + * __vxge_hw_vpath_pci_func_mode_get - Get the pci mode + * Returns pci function mode + */ +u64 +__vxge_hw_vpath_pci_func_mode_get( + u32 vp_id, + struct vxge_hw_vpath_reg __iomem *vpath_reg) +{ + u64 val64; + u64 data1 = 0ULL; + enum vxge_hw_status status = VXGE_HW_OK; + + __vxge_hw_read_rts_ds(vpath_reg, + VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PCI_MODE); + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION( + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL( + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0); + + status = __vxge_hw_pio_mem_write64(val64, + &vpath_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + VXGE_HW_DEF_DEVICE_POLL_MILLIS); + + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&vpath_reg->rts_access_steer_ctrl); + + if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) { + data1 = readq(&vpath_reg->rts_access_steer_data0); + status = VXGE_HW_OK; + } else { + data1 = 0; + status = VXGE_HW_FAIL; + } +exit: + return data1; +} + +/** + * vxge_hw_device_flick_link_led - Flick (blink) link LED. + * @hldev: HW device. + * @on_off: TRUE if flickering to be on, FALSE to be off + * + * Flicker the link LED. + */ +enum vxge_hw_status +vxge_hw_device_flick_link_led(struct __vxge_hw_device *hldev, + u64 on_off) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + if (hldev == NULL) { + status = VXGE_HW_ERR_INVALID_DEVICE; + goto exit; + } + + vp_reg = hldev->vpath_reg[hldev->first_vp_id]; + + writeq(0, &vp_reg->rts_access_steer_ctrl); + wmb(); + writeq(on_off, &vp_reg->rts_access_steer_data0); + writeq(0, &vp_reg->rts_access_steer_data1); + wmb(); + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION( + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LED_CONTROL) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL( + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0); + + status = __vxge_hw_pio_mem_write64(val64, + &vp_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + VXGE_HW_DEF_DEVICE_POLL_MILLIS); +exit: + return status; +} + +/* + * __vxge_hw_vpath_rts_table_get - Get the entries from RTS access tables + */ +enum vxge_hw_status +__vxge_hw_vpath_rts_table_get( + struct __vxge_hw_vpath_handle *vp, + u32 action, u32 rts_table, u32 offset, u64 *data1, u64 *data2) +{ + u64 val64; + struct __vxge_hw_virtualpath *vpath; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + enum vxge_hw_status status = VXGE_HW_OK; + + if (vp == NULL) { + status = VXGE_HW_ERR_INVALID_HANDLE; + goto exit; + } + + vpath = vp->vpath; + vp_reg = vpath->vp_reg; + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(rts_table) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset); + + if ((rts_table == + VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT) || + (rts_table == + VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT) || + (rts_table == + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MASK) || + (rts_table == + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_KEY)) { + val64 = val64 | VXGE_HW_RTS_ACCESS_STEER_CTRL_TABLE_SEL; + } + + status = __vxge_hw_pio_mem_write64(val64, + &vp_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + vpath->hldev->config.device_poll_millis); + + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&vp_reg->rts_access_steer_ctrl); + + if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) { + + *data1 = readq(&vp_reg->rts_access_steer_data0); + + if ((rts_table == + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) || + (rts_table == + VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT)) { + *data2 = readq(&vp_reg->rts_access_steer_data1); + } + status = VXGE_HW_OK; + } else + status = VXGE_HW_FAIL; +exit: + return status; +} + +/* + * __vxge_hw_vpath_rts_table_set - Set the entries of RTS access tables + */ +enum vxge_hw_status +__vxge_hw_vpath_rts_table_set( + struct __vxge_hw_vpath_handle *vp, u32 action, u32 rts_table, + u32 offset, u64 data1, u64 data2) +{ + u64 val64; + struct __vxge_hw_virtualpath *vpath; + enum vxge_hw_status status = VXGE_HW_OK; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + if (vp == NULL) { + status = VXGE_HW_ERR_INVALID_HANDLE; + goto exit; + } + + vpath = vp->vpath; + vp_reg = vpath->vp_reg; + + writeq(data1, &vp_reg->rts_access_steer_data0); + wmb(); + + if ((rts_table == VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) || + (rts_table == + VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT)) { + writeq(data2, &vp_reg->rts_access_steer_data1); + wmb(); + } + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(rts_table) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset); + + status = __vxge_hw_pio_mem_write64(val64, + &vp_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + vpath->hldev->config.device_poll_millis); + + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&vp_reg->rts_access_steer_ctrl); + + if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) + status = VXGE_HW_OK; + else + status = VXGE_HW_FAIL; +exit: + return status; +} + +/* + * __vxge_hw_vpath_addr_get - Get the hw address entry for this vpath + * from MAC address table. + */ +enum vxge_hw_status +__vxge_hw_vpath_addr_get( + u32 vp_id, struct vxge_hw_vpath_reg __iomem *vpath_reg, + u8 (macaddr)[ETH_ALEN], u8 (macaddr_mask)[ETH_ALEN]) +{ + u32 i; + u64 val64; + u64 data1 = 0ULL; + u64 data2 = 0ULL; + enum vxge_hw_status status = VXGE_HW_OK; + + val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION( + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL( + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) | + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE | + VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(0); + + status = __vxge_hw_pio_mem_write64(val64, + &vpath_reg->rts_access_steer_ctrl, + VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE, + VXGE_HW_DEF_DEVICE_POLL_MILLIS); + + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&vpath_reg->rts_access_steer_ctrl); + + if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) { + + data1 = readq(&vpath_reg->rts_access_steer_data0); + data2 = readq(&vpath_reg->rts_access_steer_data1); + + data1 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data1); + data2 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK( + data2); + + for (i = ETH_ALEN; i > 0; i--) { + macaddr[i-1] = (u8)(data1 & 0xFF); + data1 >>= 8; + + macaddr_mask[i-1] = (u8)(data2 & 0xFF); + data2 >>= 8; + } + status = VXGE_HW_OK; + } else + status = VXGE_HW_FAIL; +exit: + return status; +} + +/* + * vxge_hw_vpath_rts_rth_set - Set/configure RTS hashing. + */ +enum vxge_hw_status vxge_hw_vpath_rts_rth_set( + struct __vxge_hw_vpath_handle *vp, + enum vxge_hw_rth_algoritms algorithm, + struct vxge_hw_rth_hash_types *hash_type, + u16 bucket_size) +{ + u64 data0, data1; + enum vxge_hw_status status = VXGE_HW_OK; + + if (vp == NULL) { + status = VXGE_HW_ERR_INVALID_HANDLE; + goto exit; + } + + status = __vxge_hw_vpath_rts_table_get(vp, + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY, + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG, + 0, &data0, &data1); + + data0 &= ~(VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(0xf) | + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(0x3)); + + data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_EN | + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(bucket_size) | + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(algorithm); + + if (hash_type->hash_type_tcpipv4_en) + data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV4_EN; + + if (hash_type->hash_type_ipv4_en) + data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV4_EN; + + if (hash_type->hash_type_tcpipv6_en) + data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EN; + + if (hash_type->hash_type_ipv6_en) + data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EN; + + if (hash_type->hash_type_tcpipv6ex_en) + data0 |= + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EX_EN; + + if (hash_type->hash_type_ipv6ex_en) + data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EX_EN; + + if (VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_RTH_GEN_ACTIVE_TABLE(data0)) + data0 &= ~VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE; + else + data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE; + + status = __vxge_hw_vpath_rts_table_set(vp, + VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY, + VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG, + 0, data0, 0); +exit: + return status; +} + +static void +vxge_hw_rts_rth_data0_data1_get(u32 j, u64 *data0, u64 *data1, + u16 flag, u8 *itable) +{ + switch (flag) { + case 1: + *data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_NUM(j)| + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_ENTRY_EN | + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_DATA( + itable[j]); + case 2: + *data0 |= + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_NUM(j)| + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_ENTRY_EN | + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_DATA( + itable[j]); + case 3: + *data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_NUM(j)| + VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_ENTRY_EN | + VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_DATA( + itable[j]); + case 4: + *data1 |= + VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_NUM(j)| + VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_ENTRY_EN | + VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_DATA( + itable[j]); + default: + return; + } +} +/* + * vxge_hw_vpath_rts_rth_itable_set - Set/configure indirection table (IT). + */ +enum vxge_hw_status vxge_hw_vpath_rts_rth_itable_set( + struct __vxge_hw_vpath_handle **vpath_handles, + u32 vpath_count, + u8 *mtable, + u8 *itable, + u32 itable_size) +{ + u32 i, j, action, rts_table; + u64 data0; + u64 data1; + u32 max_entries; + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_vpath_handle *vp = vpath_handles[0]; + + if (vp == NULL) { + status = VXGE_HW_ERR_INVALID_HANDLE; + goto exit; + } + + max_entries = (((u32)1) << itable_size); + + if (vp->vpath->hldev->config.rth_it_type + == VXGE_HW_RTH_IT_TYPE_SOLO_IT) { + action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY; + rts_table = + VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT; + + for (j = 0; j < max_entries; j++) { + + data1 = 0; + + data0 = + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA( + itable[j]); + + status = __vxge_hw_vpath_rts_table_set(vpath_handles[0], + action, rts_table, j, data0, data1); + + if (status != VXGE_HW_OK) + goto exit; + } + + for (j = 0; j < max_entries; j++) { + + data1 = 0; + + data0 = + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_ENTRY_EN | + VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA( + itable[j]); + + status = __vxge_hw_vpath_rts_table_set( + vpath_handles[mtable[itable[j]]], action, + rts_table, j, data0, data1); + + if (status != VXGE_HW_OK) + goto exit; + } + } else { + action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY; + rts_table = + VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT; + for (i = 0; i < vpath_count; i++) { + + for (j = 0; j < max_entries;) { + + data0 = 0; + data1 = 0; + + while (j < max_entries) { + if (mtable[itable[j]] != i) { + j++; + continue; + } + vxge_hw_rts_rth_data0_data1_get(j, + &data0, &data1, 1, itable); + j++; + break; + } + + while (j < max_entries) { + if (mtable[itable[j]] != i) { + j++; + continue; + } + vxge_hw_rts_rth_data0_data1_get(j, + &data0, &data1, 2, itable); + j++; + break; + } + + while (j < max_entries) { + if (mtable[itable[j]] != i) { + j++; + continue; + } + vxge_hw_rts_rth_data0_data1_get(j, + &data0, &data1, 3, itable); + j++; + break; + } + + while (j < max_entries) { + if (mtable[itable[j]] != i) { + j++; + continue; + } + vxge_hw_rts_rth_data0_data1_get(j, + &data0, &data1, 4, itable); + j++; + break; + } + + if (data0 != 0) { + status = __vxge_hw_vpath_rts_table_set( + vpath_handles[i], + action, rts_table, + 0, data0, data1); + + if (status != VXGE_HW_OK) + goto exit; + } + } + } + } +exit: + return status; +} + +/** + * vxge_hw_vpath_check_leak - Check for memory leak + * @ringh: Handle to the ring object used for receive + * + * If PRC_RXD_DOORBELL_VPn.NEW_QW_CNT is larger or equal to + * PRC_CFG6_VPn.RXD_SPAT then a leak has occurred. + * Returns: VXGE_HW_FAIL, if leak has occurred. + * + */ +enum vxge_hw_status +vxge_hw_vpath_check_leak(struct __vxge_hw_ring *ring) +{ + enum vxge_hw_status status = VXGE_HW_OK; + u64 rxd_new_count, rxd_spat; + + if (ring == NULL) + return status; + + rxd_new_count = readl(&ring->vp_reg->prc_rxd_doorbell); + rxd_spat = readq(&ring->vp_reg->prc_cfg6); + rxd_spat = VXGE_HW_PRC_CFG6_RXD_SPAT(rxd_spat); + + if (rxd_new_count >= rxd_spat) + status = VXGE_HW_FAIL; + + return status; +} + +/* + * __vxge_hw_vpath_mgmt_read + * This routine reads the vpath_mgmt registers + */ +static enum vxge_hw_status +__vxge_hw_vpath_mgmt_read( + struct __vxge_hw_device *hldev, + struct __vxge_hw_virtualpath *vpath) +{ + u32 i, mtu = 0, max_pyld = 0; + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + + for (i = 0; i < VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) { + + val64 = readq(&vpath->vpmgmt_reg-> + rxmac_cfg0_port_vpmgmt_clone[i]); + max_pyld = + (u32) + VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_GET_MAX_PYLD_LEN + (val64); + if (mtu < max_pyld) + mtu = max_pyld; + } + + vpath->max_mtu = mtu + VXGE_HW_MAC_HEADER_MAX_SIZE; + + val64 = readq(&vpath->vpmgmt_reg->xmac_vsport_choices_vp); + + for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { + if (val64 & vxge_mBIT(i)) + vpath->vsport_number = i; + } + + val64 = readq(&vpath->vpmgmt_reg->xgmac_gen_status_vpmgmt_clone); + + if (val64 & VXGE_HW_XGMAC_GEN_STATUS_VPMGMT_CLONE_XMACJ_NTWK_OK) + VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_UP); + else + VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_DOWN); + + return status; +} + +/* + * __vxge_hw_vpath_reset_check - Check if resetting the vpath completed + * This routine checks the vpath_rst_in_prog register to see if + * adapter completed the reset process for the vpath + */ +enum vxge_hw_status +__vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath *vpath) +{ + enum vxge_hw_status status; + + status = __vxge_hw_device_register_poll( + &vpath->hldev->common_reg->vpath_rst_in_prog, + VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG( + 1 << (16 - vpath->vp_id)), + vpath->hldev->config.device_poll_millis); + + return status; +} + +/* + * __vxge_hw_vpath_reset + * This routine resets the vpath on the device + */ +enum vxge_hw_status +__vxge_hw_vpath_reset(struct __vxge_hw_device *hldev, u32 vp_id) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + + val64 = VXGE_HW_CMN_RSTHDLR_CFG0_SW_RESET_VPATH(1 << (16 - vp_id)); + + __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), + &hldev->common_reg->cmn_rsthdlr_cfg0); + + return status; +} + +/* + * __vxge_hw_vpath_sw_reset + * This routine resets the vpath structures + */ +enum vxge_hw_status +__vxge_hw_vpath_sw_reset(struct __vxge_hw_device *hldev, u32 vp_id) +{ + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_virtualpath *vpath; + + vpath = (struct __vxge_hw_virtualpath *)&hldev->virtual_paths[vp_id]; + + if (vpath->ringh) { + status = __vxge_hw_ring_reset(vpath->ringh); + if (status != VXGE_HW_OK) + goto exit; + } + + if (vpath->fifoh) + status = __vxge_hw_fifo_reset(vpath->fifoh); +exit: + return status; +} + +/* + * __vxge_hw_vpath_prc_configure + * This routine configures the prc registers of virtual path using the config + * passed + */ +void +__vxge_hw_vpath_prc_configure(struct __vxge_hw_device *hldev, u32 vp_id) +{ + u64 val64; + struct __vxge_hw_virtualpath *vpath; + struct vxge_hw_vp_config *vp_config; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + vpath = &hldev->virtual_paths[vp_id]; + vp_reg = vpath->vp_reg; + vp_config = vpath->vp_config; + + if (vp_config->ring.enable == VXGE_HW_RING_DISABLE) + return; + + val64 = readq(&vp_reg->prc_cfg1); + val64 |= VXGE_HW_PRC_CFG1_RTI_TINT_DISABLE; + writeq(val64, &vp_reg->prc_cfg1); + + val64 = readq(&vpath->vp_reg->prc_cfg6); + val64 |= VXGE_HW_PRC_CFG6_DOORBELL_MODE_EN; + writeq(val64, &vpath->vp_reg->prc_cfg6); + + val64 = readq(&vp_reg->prc_cfg7); + + if (vpath->vp_config->ring.scatter_mode != + VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT) { + + val64 &= ~VXGE_HW_PRC_CFG7_SCATTER_MODE(0x3); + + switch (vpath->vp_config->ring.scatter_mode) { + case VXGE_HW_RING_SCATTER_MODE_A: + val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE( + VXGE_HW_PRC_CFG7_SCATTER_MODE_A); + break; + case VXGE_HW_RING_SCATTER_MODE_B: + val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE( + VXGE_HW_PRC_CFG7_SCATTER_MODE_B); + break; + case VXGE_HW_RING_SCATTER_MODE_C: + val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE( + VXGE_HW_PRC_CFG7_SCATTER_MODE_C); + break; + } + } + + writeq(val64, &vp_reg->prc_cfg7); + + writeq(VXGE_HW_PRC_CFG5_RXD0_ADD( + __vxge_hw_ring_first_block_address_get( + vpath->ringh) >> 3), &vp_reg->prc_cfg5); + + val64 = readq(&vp_reg->prc_cfg4); + val64 |= VXGE_HW_PRC_CFG4_IN_SVC; + val64 &= ~VXGE_HW_PRC_CFG4_RING_MODE(0x3); + + val64 |= VXGE_HW_PRC_CFG4_RING_MODE( + VXGE_HW_PRC_CFG4_RING_MODE_ONE_BUFFER); + + if (hldev->config.rth_en == VXGE_HW_RTH_DISABLE) + val64 |= VXGE_HW_PRC_CFG4_RTH_DISABLE; + else + val64 &= ~VXGE_HW_PRC_CFG4_RTH_DISABLE; + + writeq(val64, &vp_reg->prc_cfg4); + return; +} + +/* + * __vxge_hw_vpath_kdfc_configure + * This routine configures the kdfc registers of virtual path using the + * config passed + */ +enum vxge_hw_status +__vxge_hw_vpath_kdfc_configure(struct __vxge_hw_device *hldev, u32 vp_id) +{ + u64 val64; + u64 vpath_stride; + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_virtualpath *vpath; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + vpath = &hldev->virtual_paths[vp_id]; + vp_reg = vpath->vp_reg; + status = __vxge_hw_kdfc_swapper_set(hldev->legacy_reg, vp_reg); + + if (status != VXGE_HW_OK) + goto exit; + + val64 = readq(&vp_reg->kdfc_drbl_triplet_total); + + vpath->max_kdfc_db = + (u32)VXGE_HW_KDFC_DRBL_TRIPLET_TOTAL_GET_KDFC_MAX_SIZE( + val64+1)/2; + + if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) { + + vpath->max_nofl_db = vpath->max_kdfc_db; + + if (vpath->max_nofl_db < + ((vpath->vp_config->fifo.memblock_size / + (vpath->vp_config->fifo.max_frags * + sizeof(struct vxge_hw_fifo_txd))) * + vpath->vp_config->fifo.fifo_blocks)) { + + return VXGE_HW_BADCFG_FIFO_BLOCKS; + } + val64 = VXGE_HW_KDFC_FIFO_TRPL_PARTITION_LENGTH_0( + (vpath->max_nofl_db*2)-1); + } + + writeq(val64, &vp_reg->kdfc_fifo_trpl_partition); + + writeq(VXGE_HW_KDFC_FIFO_TRPL_CTRL_TRIPLET_ENABLE, + &vp_reg->kdfc_fifo_trpl_ctrl); + + val64 = readq(&vp_reg->kdfc_trpl_fifo_0_ctrl); + + val64 &= ~(VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(0x3) | + VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0xFF)); + + val64 |= VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE( + VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE_NON_OFFLOAD_ONLY) | +#ifndef __BIG_ENDIAN + VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SWAP_EN | +#endif + VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0); + + writeq(val64, &vp_reg->kdfc_trpl_fifo_0_ctrl); + writeq((u64)0, &vp_reg->kdfc_trpl_fifo_0_wb_address); + wmb(); + vpath_stride = readq(&hldev->toc_reg->toc_kdfc_vpath_stride); + + vpath->nofl_db = + (struct __vxge_hw_non_offload_db_wrapper __iomem *) + (hldev->kdfc + (vp_id * + VXGE_HW_TOC_KDFC_VPATH_STRIDE_GET_TOC_KDFC_VPATH_STRIDE( + vpath_stride))); +exit: + return status; +} + +/* + * __vxge_hw_vpath_mac_configure + * This routine configures the mac of virtual path using the config passed + */ +enum vxge_hw_status +__vxge_hw_vpath_mac_configure(struct __vxge_hw_device *hldev, u32 vp_id) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_virtualpath *vpath; + struct vxge_hw_vp_config *vp_config; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + vpath = &hldev->virtual_paths[vp_id]; + vp_reg = vpath->vp_reg; + vp_config = vpath->vp_config; + + writeq(VXGE_HW_XMAC_VSPORT_CHOICE_VSPORT_NUMBER( + vpath->vsport_number), &vp_reg->xmac_vsport_choice); + + if (vp_config->ring.enable == VXGE_HW_RING_ENABLE) { + + val64 = readq(&vp_reg->xmac_rpa_vcfg); + + if (vp_config->rpa_strip_vlan_tag != + VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) { + if (vp_config->rpa_strip_vlan_tag) + val64 |= VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG; + else + val64 &= ~VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG; + } + + writeq(val64, &vp_reg->xmac_rpa_vcfg); + val64 = readq(&vp_reg->rxmac_vcfg0); + + if (vp_config->mtu != + VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) { + val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff); + if ((vp_config->mtu + + VXGE_HW_MAC_HEADER_MAX_SIZE) < vpath->max_mtu) + val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN( + vp_config->mtu + + VXGE_HW_MAC_HEADER_MAX_SIZE); + else + val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN( + vpath->max_mtu); + } + + writeq(val64, &vp_reg->rxmac_vcfg0); + + val64 = readq(&vp_reg->rxmac_vcfg1); + + val64 &= ~(VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(0x3) | + VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE); + + if (hldev->config.rth_it_type == + VXGE_HW_RTH_IT_TYPE_MULTI_IT) { + val64 |= VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE( + 0x2) | + VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE; + } + + writeq(val64, &vp_reg->rxmac_vcfg1); + } + return status; +} + +/* + * __vxge_hw_vpath_tim_configure + * This routine configures the tim registers of virtual path using the config + * passed + */ +enum vxge_hw_status +__vxge_hw_vpath_tim_configure(struct __vxge_hw_device *hldev, u32 vp_id) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_virtualpath *vpath; + struct vxge_hw_vpath_reg __iomem *vp_reg; + struct vxge_hw_vp_config *config; + + vpath = &hldev->virtual_paths[vp_id]; + vp_reg = vpath->vp_reg; + config = vpath->vp_config; + + writeq((u64)0, &vp_reg->tim_dest_addr); + writeq((u64)0, &vp_reg->tim_vpath_map); + writeq((u64)0, &vp_reg->tim_bitmap); + writeq((u64)0, &vp_reg->tim_remap); + + if (config->ring.enable == VXGE_HW_RING_ENABLE) + writeq(VXGE_HW_TIM_RING_ASSN_INT_NUM( + (vp_id * VXGE_HW_MAX_INTR_PER_VP) + + VXGE_HW_VPATH_INTR_RX), &vp_reg->tim_ring_assn); + + val64 = readq(&vp_reg->tim_pci_cfg); + val64 |= VXGE_HW_TIM_PCI_CFG_ADD_PAD; + writeq(val64, &vp_reg->tim_pci_cfg); + + if (config->fifo.enable == VXGE_HW_FIFO_ENABLE) { + + val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]); + + if (config->tti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL( + 0x3ffffff); + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL( + config->tti.btimer_val); + } + + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN; + + if (config->tti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) { + if (config->tti.timer_ac_en) + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC; + else + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC; + } + + if (config->tti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) { + if (config->tti.timer_ci_en) + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI; + else + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI; + } + + if (config->tti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f); + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A( + config->tti.urange_a); + } + + if (config->tti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f); + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B( + config->tti.urange_b); + } + + if (config->tti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f); + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C( + config->tti.urange_c); + } + + writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]); + val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]); + + if (config->tti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff); + val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A( + config->tti.uec_a); + } + + if (config->tti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff); + val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B( + config->tti.uec_b); + } + + if (config->tti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff); + val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C( + config->tti.uec_c); + } + + if (config->tti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff); + val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D( + config->tti.uec_d); + } + + writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]); + val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]); + + if (config->tti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) { + if (config->tti.timer_ri_en) + val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI; + else + val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI; + } + + if (config->tti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL( + 0x3ffffff); + val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL( + config->tti.rtimer_val); + } + + if (config->tti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f); + val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL( + config->tti.util_sel); + } + + if (config->tti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL( + 0x3ffffff); + val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL( + config->tti.ltimer_val); + } + + writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]); + } + + if (config->ring.enable == VXGE_HW_RING_ENABLE) { + + val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]); + + if (config->rti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL( + 0x3ffffff); + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL( + config->rti.btimer_val); + } + + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN; + + if (config->rti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) { + if (config->rti.timer_ac_en) + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC; + else + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC; + } + + if (config->rti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) { + if (config->rti.timer_ci_en) + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI; + else + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI; + } + + if (config->rti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f); + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A( + config->rti.urange_a); + } + + if (config->rti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f); + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B( + config->rti.urange_b); + } + + if (config->rti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f); + val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C( + config->rti.urange_c); + } + + writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]); + val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]); + + if (config->rti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff); + val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A( + config->rti.uec_a); + } + + if (config->rti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff); + val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B( + config->rti.uec_b); + } + + if (config->rti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff); + val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C( + config->rti.uec_c); + } + + if (config->rti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff); + val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D( + config->rti.uec_d); + } + + writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]); + val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]); + + if (config->rti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) { + if (config->rti.timer_ri_en) + val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI; + else + val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI; + } + + if (config->rti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL( + 0x3ffffff); + val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL( + config->rti.rtimer_val); + } + + if (config->rti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f); + val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL( + config->rti.util_sel); + } + + if (config->rti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) { + val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL( + 0x3ffffff); + val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL( + config->rti.ltimer_val); + } + + writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]); + } + + val64 = 0; + writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_EINTA]); + writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_EINTA]); + writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_EINTA]); + writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_BMAP]); + writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_BMAP]); + writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_BMAP]); + + return status; +} + +/* + * __vxge_hw_vpath_initialize + * This routine is the final phase of init which initializes the + * registers of the vpath using the configuration passed. + */ +enum vxge_hw_status +__vxge_hw_vpath_initialize(struct __vxge_hw_device *hldev, u32 vp_id) +{ + u64 val64; + u32 val32; + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_virtualpath *vpath; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + vpath = &hldev->virtual_paths[vp_id]; + + if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) { + status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE; + goto exit; + } + vp_reg = vpath->vp_reg; + + status = __vxge_hw_vpath_swapper_set(vpath->vp_reg); + + if (status != VXGE_HW_OK) + goto exit; + + status = __vxge_hw_vpath_mac_configure(hldev, vp_id); + + if (status != VXGE_HW_OK) + goto exit; + + status = __vxge_hw_vpath_kdfc_configure(hldev, vp_id); + + if (status != VXGE_HW_OK) + goto exit; + + status = __vxge_hw_vpath_tim_configure(hldev, vp_id); + + if (status != VXGE_HW_OK) + goto exit; + + writeq(0, &vp_reg->gendma_int); + + val64 = readq(&vp_reg->rtdma_rd_optimization_ctrl); + + /* Get MRRS value from device control */ + status = __vxge_hw_vpath_pci_read(vpath, 1, 0x78, &val32); + + if (status == VXGE_HW_OK) { + val32 = (val32 & VXGE_HW_PCI_EXP_DEVCTL_READRQ) >> 12; + val64 &= + ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(7)); + val64 |= + VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(val32); + + val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_WAIT_FOR_SPACE; + } + + val64 &= ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(7)); + val64 |= + VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY( + VXGE_HW_MAX_PAYLOAD_SIZE_512); + + val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY_EN; + writeq(val64, &vp_reg->rtdma_rd_optimization_ctrl); + +exit: + return status; +} + +/* + * __vxge_hw_vp_initialize - Initialize Virtual Path structure + * This routine is the initial phase of init which resets the vpath and + * initializes the software support structures. + */ +enum vxge_hw_status +__vxge_hw_vp_initialize(struct __vxge_hw_device *hldev, u32 vp_id, + struct vxge_hw_vp_config *config) +{ + struct __vxge_hw_virtualpath *vpath; + enum vxge_hw_status status = VXGE_HW_OK; + + if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) { + status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE; + goto exit; + } + + vpath = &hldev->virtual_paths[vp_id]; + + vpath->vp_id = vp_id; + vpath->vp_open = VXGE_HW_VP_OPEN; + vpath->hldev = hldev; + vpath->vp_config = config; + vpath->vp_reg = hldev->vpath_reg[vp_id]; + vpath->vpmgmt_reg = hldev->vpmgmt_reg[vp_id]; + + __vxge_hw_vpath_reset(hldev, vp_id); + + status = __vxge_hw_vpath_reset_check(vpath); + + if (status != VXGE_HW_OK) { + memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath)); + goto exit; + } + + status = __vxge_hw_vpath_mgmt_read(hldev, vpath); + + if (status != VXGE_HW_OK) { + memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath)); + goto exit; + } + + INIT_LIST_HEAD(&vpath->vpath_handles); + + vpath->sw_stats = &hldev->stats.sw_dev_info_stats.vpath_info[vp_id]; + + VXGE_HW_DEVICE_TIM_INT_MASK_SET(hldev->tim_int_mask0, + hldev->tim_int_mask1, vp_id); + + status = __vxge_hw_vpath_initialize(hldev, vp_id); + + if (status != VXGE_HW_OK) + __vxge_hw_vp_terminate(hldev, vp_id); +exit: + return status; +} + +/* + * __vxge_hw_vp_terminate - Terminate Virtual Path structure + * This routine closes all channels it opened and freeup memory + */ +void +__vxge_hw_vp_terminate(struct __vxge_hw_device *hldev, u32 vp_id) +{ + struct __vxge_hw_virtualpath *vpath; + + vpath = &hldev->virtual_paths[vp_id]; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) + goto exit; + + VXGE_HW_DEVICE_TIM_INT_MASK_RESET(vpath->hldev->tim_int_mask0, + vpath->hldev->tim_int_mask1, vpath->vp_id); + hldev->stats.hw_dev_info_stats.vpath_info[vpath->vp_id] = NULL; + + memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath)); +exit: + return; +} + +/* + * vxge_hw_vpath_mtu_set - Set MTU. + * Set new MTU value. Example, to use jumbo frames: + * vxge_hw_vpath_mtu_set(my_device, 9600); + */ +enum vxge_hw_status +vxge_hw_vpath_mtu_set(struct __vxge_hw_vpath_handle *vp, u32 new_mtu) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_virtualpath *vpath; + + if (vp == NULL) { + status = VXGE_HW_ERR_INVALID_HANDLE; + goto exit; + } + vpath = vp->vpath; + + new_mtu += VXGE_HW_MAC_HEADER_MAX_SIZE; + + if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > vpath->max_mtu)) + status = VXGE_HW_ERR_INVALID_MTU_SIZE; + + val64 = readq(&vpath->vp_reg->rxmac_vcfg0); + + val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff); + val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(new_mtu); + + writeq(val64, &vpath->vp_reg->rxmac_vcfg0); + + vpath->vp_config->mtu = new_mtu - VXGE_HW_MAC_HEADER_MAX_SIZE; + +exit: + return status; +} + +/* + * vxge_hw_vpath_open - Open a virtual path on a given adapter + * This function is used to open access to virtual path of an + * adapter for offload, GRO operations. This function returns + * synchronously. + */ +enum vxge_hw_status +vxge_hw_vpath_open(struct __vxge_hw_device *hldev, + struct vxge_hw_vpath_attr *attr, + struct __vxge_hw_vpath_handle **vpath_handle) +{ + struct __vxge_hw_virtualpath *vpath; + struct __vxge_hw_vpath_handle *vp; + enum vxge_hw_status status; + + vpath = &hldev->virtual_paths[attr->vp_id]; + + if (vpath->vp_open == VXGE_HW_VP_OPEN) { + status = VXGE_HW_ERR_INVALID_STATE; + goto vpath_open_exit1; + } + + status = __vxge_hw_vp_initialize(hldev, attr->vp_id, + &hldev->config.vp_config[attr->vp_id]); + + if (status != VXGE_HW_OK) + goto vpath_open_exit1; + + vp = (struct __vxge_hw_vpath_handle *) + vmalloc(sizeof(struct __vxge_hw_vpath_handle)); + if (vp == NULL) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto vpath_open_exit2; + } + + memset(vp, 0, sizeof(struct __vxge_hw_vpath_handle)); + + vp->vpath = vpath; + + if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) { + status = __vxge_hw_fifo_create(vp, &attr->fifo_attr); + if (status != VXGE_HW_OK) + goto vpath_open_exit6; + } + + if (vpath->vp_config->ring.enable == VXGE_HW_RING_ENABLE) { + status = __vxge_hw_ring_create(vp, &attr->ring_attr); + if (status != VXGE_HW_OK) + goto vpath_open_exit7; + + __vxge_hw_vpath_prc_configure(hldev, attr->vp_id); + } + + vpath->fifoh->tx_intr_num = + (attr->vp_id * VXGE_HW_MAX_INTR_PER_VP) + + VXGE_HW_VPATH_INTR_TX; + + vpath->stats_block = __vxge_hw_blockpool_block_allocate(hldev, + VXGE_HW_BLOCK_SIZE); + + if (vpath->stats_block == NULL) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto vpath_open_exit8; + } + + vpath->hw_stats = (struct vxge_hw_vpath_stats_hw_info *)vpath-> + stats_block->memblock; + memset(vpath->hw_stats, 0, + sizeof(struct vxge_hw_vpath_stats_hw_info)); + + hldev->stats.hw_dev_info_stats.vpath_info[attr->vp_id] = + vpath->hw_stats; + + vpath->hw_stats_sav = + &hldev->stats.hw_dev_info_stats.vpath_info_sav[attr->vp_id]; + memset(vpath->hw_stats_sav, 0, + sizeof(struct vxge_hw_vpath_stats_hw_info)); + + writeq(vpath->stats_block->dma_addr, &vpath->vp_reg->stats_cfg); + + status = vxge_hw_vpath_stats_enable(vp); + if (status != VXGE_HW_OK) + goto vpath_open_exit8; + + list_add(&vp->item, &vpath->vpath_handles); + + hldev->vpaths_deployed |= vxge_mBIT(vpath->vp_id); + + *vpath_handle = vp; + + attr->fifo_attr.userdata = vpath->fifoh; + attr->ring_attr.userdata = vpath->ringh; + + return VXGE_HW_OK; + +vpath_open_exit8: + if (vpath->ringh != NULL) + __vxge_hw_ring_delete(vp); +vpath_open_exit7: + if (vpath->fifoh != NULL) + __vxge_hw_fifo_delete(vp); +vpath_open_exit6: + vfree(vp); +vpath_open_exit2: + __vxge_hw_vp_terminate(hldev, attr->vp_id); +vpath_open_exit1: + + return status; +} + +/** + * vxge_hw_vpath_rx_doorbell_post - Close the handle got from previous vpath + * (vpath) open + * @vp: Handle got from previous vpath open + * + * This function is used to close access to virtual path opened + * earlier. + */ +void +vxge_hw_vpath_rx_doorbell_init(struct __vxge_hw_vpath_handle *vp) +{ + struct __vxge_hw_virtualpath *vpath = NULL; + u64 new_count, val64, val164; + struct __vxge_hw_ring *ring; + + vpath = vp->vpath; + ring = vpath->ringh; + + new_count = readq(&vpath->vp_reg->rxdmem_size); + new_count &= 0x1fff; + val164 = (VXGE_HW_RXDMEM_SIZE_PRC_RXDMEM_SIZE(new_count)); + + writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(val164), + &vpath->vp_reg->prc_rxd_doorbell); + readl(&vpath->vp_reg->prc_rxd_doorbell); + + val164 /= 2; + val64 = readq(&vpath->vp_reg->prc_cfg6); + val64 = VXGE_HW_PRC_CFG6_RXD_SPAT(val64); + val64 &= 0x1ff; + + /* + * Each RxD is of 4 qwords + */ + new_count -= (val64 + 1); + val64 = min(val164, new_count) / 4; + + ring->rxds_limit = min(ring->rxds_limit, val64); + if (ring->rxds_limit < 4) + ring->rxds_limit = 4; +} + +/* + * vxge_hw_vpath_close - Close the handle got from previous vpath (vpath) open + * This function is used to close access to virtual path opened + * earlier. + */ +enum vxge_hw_status vxge_hw_vpath_close(struct __vxge_hw_vpath_handle *vp) +{ + struct __vxge_hw_virtualpath *vpath = NULL; + struct __vxge_hw_device *devh = NULL; + u32 vp_id = vp->vpath->vp_id; + u32 is_empty = TRUE; + enum vxge_hw_status status = VXGE_HW_OK; + + vpath = vp->vpath; + devh = vpath->hldev; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { + status = VXGE_HW_ERR_VPATH_NOT_OPEN; + goto vpath_close_exit; + } + + list_del(&vp->item); + + if (!list_empty(&vpath->vpath_handles)) { + list_add(&vp->item, &vpath->vpath_handles); + is_empty = FALSE; + } + + if (!is_empty) { + status = VXGE_HW_FAIL; + goto vpath_close_exit; + } + + devh->vpaths_deployed &= ~vxge_mBIT(vp_id); + + if (vpath->ringh != NULL) + __vxge_hw_ring_delete(vp); + + if (vpath->fifoh != NULL) + __vxge_hw_fifo_delete(vp); + + if (vpath->stats_block != NULL) + __vxge_hw_blockpool_block_free(devh, vpath->stats_block); + + vfree(vp); + + __vxge_hw_vp_terminate(devh, vp_id); + + vpath->vp_open = VXGE_HW_VP_NOT_OPEN; + +vpath_close_exit: + return status; +} + +/* + * vxge_hw_vpath_reset - Resets vpath + * This function is used to request a reset of vpath + */ +enum vxge_hw_status vxge_hw_vpath_reset(struct __vxge_hw_vpath_handle *vp) +{ + enum vxge_hw_status status; + u32 vp_id; + struct __vxge_hw_virtualpath *vpath = vp->vpath; + + vp_id = vpath->vp_id; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { + status = VXGE_HW_ERR_VPATH_NOT_OPEN; + goto exit; + } + + status = __vxge_hw_vpath_reset(vpath->hldev, vp_id); + if (status == VXGE_HW_OK) + vpath->sw_stats->soft_reset_cnt++; +exit: + return status; +} + +/* + * vxge_hw_vpath_recover_from_reset - Poll for reset complete and re-initialize. + * This function poll's for the vpath reset completion and re initializes + * the vpath. + */ +enum vxge_hw_status +vxge_hw_vpath_recover_from_reset(struct __vxge_hw_vpath_handle *vp) +{ + struct __vxge_hw_virtualpath *vpath = NULL; + enum vxge_hw_status status; + struct __vxge_hw_device *hldev; + u32 vp_id; + + vp_id = vp->vpath->vp_id; + vpath = vp->vpath; + hldev = vpath->hldev; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { + status = VXGE_HW_ERR_VPATH_NOT_OPEN; + goto exit; + } + + status = __vxge_hw_vpath_reset_check(vpath); + if (status != VXGE_HW_OK) + goto exit; + + status = __vxge_hw_vpath_sw_reset(hldev, vp_id); + if (status != VXGE_HW_OK) + goto exit; + + status = __vxge_hw_vpath_initialize(hldev, vp_id); + if (status != VXGE_HW_OK) + goto exit; + + if (vpath->ringh != NULL) + __vxge_hw_vpath_prc_configure(hldev, vp_id); + + memset(vpath->hw_stats, 0, + sizeof(struct vxge_hw_vpath_stats_hw_info)); + + memset(vpath->hw_stats_sav, 0, + sizeof(struct vxge_hw_vpath_stats_hw_info)); + + writeq(vpath->stats_block->dma_addr, + &vpath->vp_reg->stats_cfg); + + status = vxge_hw_vpath_stats_enable(vp); + +exit: + return status; +} + +/* + * vxge_hw_vpath_enable - Enable vpath. + * This routine clears the vpath reset thereby enabling a vpath + * to start forwarding frames and generating interrupts. + */ +void +vxge_hw_vpath_enable(struct __vxge_hw_vpath_handle *vp) +{ + struct __vxge_hw_device *hldev; + u64 val64; + + hldev = vp->vpath->hldev; + + val64 = VXGE_HW_CMN_RSTHDLR_CFG1_CLR_VPATH_RESET( + 1 << (16 - vp->vpath->vp_id)); + + __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), + &hldev->common_reg->cmn_rsthdlr_cfg1); +} + +/* + * vxge_hw_vpath_stats_enable - Enable vpath h/wstatistics. + * Enable the DMA vpath statistics. The function is to be called to re-enable + * the adapter to update stats into the host memory + */ +enum vxge_hw_status +vxge_hw_vpath_stats_enable(struct __vxge_hw_vpath_handle *vp) +{ + enum vxge_hw_status status = VXGE_HW_OK; + struct __vxge_hw_virtualpath *vpath; + + vpath = vp->vpath; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { + status = VXGE_HW_ERR_VPATH_NOT_OPEN; + goto exit; + } + + memcpy(vpath->hw_stats_sav, vpath->hw_stats, + sizeof(struct vxge_hw_vpath_stats_hw_info)); + + status = __vxge_hw_vpath_stats_get(vpath, vpath->hw_stats); +exit: + return status; +} + +/* + * __vxge_hw_vpath_stats_access - Get the statistics from the given location + * and offset and perform an operation + */ +enum vxge_hw_status +__vxge_hw_vpath_stats_access(struct __vxge_hw_virtualpath *vpath, + u32 operation, u32 offset, u64 *stat) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { + status = VXGE_HW_ERR_VPATH_NOT_OPEN; + goto vpath_stats_access_exit; + } + + vp_reg = vpath->vp_reg; + + val64 = VXGE_HW_XMAC_STATS_ACCESS_CMD_OP(operation) | + VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE | + VXGE_HW_XMAC_STATS_ACCESS_CMD_OFFSET_SEL(offset); + + status = __vxge_hw_pio_mem_write64(val64, + &vp_reg->xmac_stats_access_cmd, + VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE, + vpath->hldev->config.device_poll_millis); + + if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ)) + *stat = readq(&vp_reg->xmac_stats_access_data); + else + *stat = 0; + +vpath_stats_access_exit: + return status; +} + +/* + * __vxge_hw_vpath_xmac_tx_stats_get - Get the TX Statistics of a vpath + */ +enum vxge_hw_status +__vxge_hw_vpath_xmac_tx_stats_get( + struct __vxge_hw_virtualpath *vpath, + struct vxge_hw_xmac_vpath_tx_stats *vpath_tx_stats) +{ + u64 *val64; + int i; + u32 offset = VXGE_HW_STATS_VPATH_TX_OFFSET; + enum vxge_hw_status status = VXGE_HW_OK; + + val64 = (u64 *) vpath_tx_stats; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { + status = VXGE_HW_ERR_VPATH_NOT_OPEN; + goto exit; + } + + for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_tx_stats) / 8; i++) { + status = __vxge_hw_vpath_stats_access(vpath, + VXGE_HW_STATS_OP_READ, + offset, val64); + if (status != VXGE_HW_OK) + goto exit; + offset++; + val64++; + } +exit: + return status; +} + +/* + * __vxge_hw_vpath_xmac_rx_stats_get - Get the RX Statistics of a vpath + */ +enum vxge_hw_status +__vxge_hw_vpath_xmac_rx_stats_get(struct __vxge_hw_virtualpath *vpath, + struct vxge_hw_xmac_vpath_rx_stats *vpath_rx_stats) +{ + u64 *val64; + enum vxge_hw_status status = VXGE_HW_OK; + int i; + u32 offset = VXGE_HW_STATS_VPATH_RX_OFFSET; + val64 = (u64 *) vpath_rx_stats; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { + status = VXGE_HW_ERR_VPATH_NOT_OPEN; + goto exit; + } + for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_rx_stats) / 8; i++) { + status = __vxge_hw_vpath_stats_access(vpath, + VXGE_HW_STATS_OP_READ, + offset >> 3, val64); + if (status != VXGE_HW_OK) + goto exit; + + offset += 8; + val64++; + } +exit: + return status; +} + +/* + * __vxge_hw_vpath_stats_get - Get the vpath hw statistics. + */ +enum vxge_hw_status __vxge_hw_vpath_stats_get( + struct __vxge_hw_virtualpath *vpath, + struct vxge_hw_vpath_stats_hw_info *hw_stats) +{ + u64 val64; + enum vxge_hw_status status = VXGE_HW_OK; + struct vxge_hw_vpath_reg __iomem *vp_reg; + + if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { + status = VXGE_HW_ERR_VPATH_NOT_OPEN; + goto exit; + } + vp_reg = vpath->vp_reg; + + val64 = readq(&vp_reg->vpath_debug_stats0); + hw_stats->ini_num_mwr_sent = + (u32)VXGE_HW_VPATH_DEBUG_STATS0_GET_INI_NUM_MWR_SENT(val64); + + val64 = readq(&vp_reg->vpath_debug_stats1); + hw_stats->ini_num_mrd_sent = + (u32)VXGE_HW_VPATH_DEBUG_STATS1_GET_INI_NUM_MRD_SENT(val64); + + val64 = readq(&vp_reg->vpath_debug_stats2); + hw_stats->ini_num_cpl_rcvd = + (u32)VXGE_HW_VPATH_DEBUG_STATS2_GET_INI_NUM_CPL_RCVD(val64); + + val64 = readq(&vp_reg->vpath_debug_stats3); + hw_stats->ini_num_mwr_byte_sent = + VXGE_HW_VPATH_DEBUG_STATS3_GET_INI_NUM_MWR_BYTE_SENT(val64); + + val64 = readq(&vp_reg->vpath_debug_stats4); + hw_stats->ini_num_cpl_byte_rcvd = + VXGE_HW_VPATH_DEBUG_STATS4_GET_INI_NUM_CPL_BYTE_RCVD(val64); + + val64 = readq(&vp_reg->vpath_debug_stats5); + hw_stats->wrcrdtarb_xoff = + (u32)VXGE_HW_VPATH_DEBUG_STATS5_GET_WRCRDTARB_XOFF(val64); + + val64 = readq(&vp_reg->vpath_debug_stats6); + hw_stats->rdcrdtarb_xoff = + (u32)VXGE_HW_VPATH_DEBUG_STATS6_GET_RDCRDTARB_XOFF(val64); + + val64 = readq(&vp_reg->vpath_genstats_count01); + hw_stats->vpath_genstats_count0 = + (u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT0( + val64); + + val64 = readq(&vp_reg->vpath_genstats_count01); + hw_stats->vpath_genstats_count1 = + (u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT1( + val64); + + val64 = readq(&vp_reg->vpath_genstats_count23); + hw_stats->vpath_genstats_count2 = + (u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT2( + val64); + + val64 = readq(&vp_reg->vpath_genstats_count01); + hw_stats->vpath_genstats_count3 = + (u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT3( + val64); + + val64 = readq(&vp_reg->vpath_genstats_count4); + hw_stats->vpath_genstats_count4 = + (u32)VXGE_HW_VPATH_GENSTATS_COUNT4_GET_PPIF_VPATH_GENSTATS_COUNT4( + val64); + + val64 = readq(&vp_reg->vpath_genstats_count5); + hw_stats->vpath_genstats_count5 = + (u32)VXGE_HW_VPATH_GENSTATS_COUNT5_GET_PPIF_VPATH_GENSTATS_COUNT5( + val64); + + status = __vxge_hw_vpath_xmac_tx_stats_get(vpath, &hw_stats->tx_stats); + if (status != VXGE_HW_OK) + goto exit; + + status = __vxge_hw_vpath_xmac_rx_stats_get(vpath, &hw_stats->rx_stats); + if (status != VXGE_HW_OK) + goto exit; + + VXGE_HW_VPATH_STATS_PIO_READ( + VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM0_OFFSET); + + hw_stats->prog_event_vnum0 = + (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM0(val64); + + hw_stats->prog_event_vnum1 = + (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM1(val64); + + VXGE_HW_VPATH_STATS_PIO_READ( + VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM2_OFFSET); + + hw_stats->prog_event_vnum2 = + (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM2(val64); + + hw_stats->prog_event_vnum3 = + (u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM3(val64); + + val64 = readq(&vp_reg->rx_multi_cast_stats); + hw_stats->rx_multi_cast_frame_discard = + (u16)VXGE_HW_RX_MULTI_CAST_STATS_GET_FRAME_DISCARD(val64); + + val64 = readq(&vp_reg->rx_frm_transferred); + hw_stats->rx_frm_transferred = + (u32)VXGE_HW_RX_FRM_TRANSFERRED_GET_RX_FRM_TRANSFERRED(val64); + + val64 = readq(&vp_reg->rxd_returned); + hw_stats->rxd_returned = + (u16)VXGE_HW_RXD_RETURNED_GET_RXD_RETURNED(val64); + + val64 = readq(&vp_reg->dbg_stats_rx_mpa); + hw_stats->rx_mpa_len_fail_frms = + (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_LEN_FAIL_FRMS(val64); + hw_stats->rx_mpa_mrk_fail_frms = + (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_MRK_FAIL_FRMS(val64); + hw_stats->rx_mpa_crc_fail_frms = + (u16)VXGE_HW_DBG_STATS_GET_RX_MPA_CRC_FAIL_FRMS(val64); + + val64 = readq(&vp_reg->dbg_stats_rx_fau); + hw_stats->rx_permitted_frms = + (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_PERMITTED_FRMS(val64); + hw_stats->rx_vp_reset_discarded_frms = + (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_VP_RESET_DISCARDED_FRMS(val64); + hw_stats->rx_wol_frms = + (u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_WOL_FRMS(val64); + + val64 = readq(&vp_reg->tx_vp_reset_discarded_frms); + hw_stats->tx_vp_reset_discarded_frms = + (u16)VXGE_HW_TX_VP_RESET_DISCARDED_FRMS_GET_TX_VP_RESET_DISCARDED_FRMS( + val64); +exit: + return status; +} + +/* + * __vxge_hw_blockpool_create - Create block pool + */ + +enum vxge_hw_status +__vxge_hw_blockpool_create(struct __vxge_hw_device *hldev, + struct __vxge_hw_blockpool *blockpool, + u32 pool_size, + u32 pool_max) +{ + u32 i; + struct __vxge_hw_blockpool_entry *entry = NULL; + void *memblock; + dma_addr_t dma_addr; + struct pci_dev *dma_handle; + struct pci_dev *acc_handle; + enum vxge_hw_status status = VXGE_HW_OK; + + if (blockpool == NULL) { + status = VXGE_HW_FAIL; + goto blockpool_create_exit; + } + + blockpool->hldev = hldev; + blockpool->block_size = VXGE_HW_BLOCK_SIZE; + blockpool->pool_size = 0; + blockpool->pool_max = pool_max; + blockpool->req_out = 0; + + INIT_LIST_HEAD(&blockpool->free_block_list); + INIT_LIST_HEAD(&blockpool->free_entry_list); + + for (i = 0; i < pool_size + pool_max; i++) { + entry = kzalloc(sizeof(struct __vxge_hw_blockpool_entry), + GFP_KERNEL); + if (entry == NULL) { + __vxge_hw_blockpool_destroy(blockpool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto blockpool_create_exit; + } + list_add(&entry->item, &blockpool->free_entry_list); + } + + for (i = 0; i < pool_size; i++) { + + memblock = vxge_os_dma_malloc( + hldev->pdev, + VXGE_HW_BLOCK_SIZE, + &dma_handle, + &acc_handle); + + if (memblock == NULL) { + __vxge_hw_blockpool_destroy(blockpool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto blockpool_create_exit; + } + + dma_addr = pci_map_single(hldev->pdev, memblock, + VXGE_HW_BLOCK_SIZE, PCI_DMA_BIDIRECTIONAL); + + if (unlikely(pci_dma_mapping_error(hldev->pdev, + dma_addr))) { + + vxge_os_dma_free(hldev->pdev, memblock, &acc_handle); + __vxge_hw_blockpool_destroy(blockpool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto blockpool_create_exit; + } + + if (!list_empty(&blockpool->free_entry_list)) + entry = (struct __vxge_hw_blockpool_entry *) + list_first_entry(&blockpool->free_entry_list, + struct __vxge_hw_blockpool_entry, + item); + + if (entry == NULL) + entry = + kzalloc(sizeof(struct __vxge_hw_blockpool_entry), + GFP_KERNEL); + if (entry != NULL) { + list_del(&entry->item); + entry->length = VXGE_HW_BLOCK_SIZE; + entry->memblock = memblock; + entry->dma_addr = dma_addr; + entry->acc_handle = acc_handle; + entry->dma_handle = dma_handle; + list_add(&entry->item, + &blockpool->free_block_list); + blockpool->pool_size++; + } else { + __vxge_hw_blockpool_destroy(blockpool); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto blockpool_create_exit; + } + } + +blockpool_create_exit: + return status; +} + +/* + * __vxge_hw_blockpool_destroy - Deallocates the block pool + */ + +void __vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool *blockpool) +{ + + struct __vxge_hw_device *hldev; + struct list_head *p, *n; + u16 ret; + + if (blockpool == NULL) { + ret = 1; + goto exit; + } + + hldev = blockpool->hldev; + + list_for_each_safe(p, n, &blockpool->free_block_list) { + + pci_unmap_single(hldev->pdev, + ((struct __vxge_hw_blockpool_entry *)p)->dma_addr, + ((struct __vxge_hw_blockpool_entry *)p)->length, + PCI_DMA_BIDIRECTIONAL); + + vxge_os_dma_free(hldev->pdev, + ((struct __vxge_hw_blockpool_entry *)p)->memblock, + &((struct __vxge_hw_blockpool_entry *) p)->acc_handle); + + list_del( + &((struct __vxge_hw_blockpool_entry *)p)->item); + kfree(p); + blockpool->pool_size--; + } + + list_for_each_safe(p, n, &blockpool->free_entry_list) { + list_del( + &((struct __vxge_hw_blockpool_entry *)p)->item); + kfree((void *)p); + } + ret = 0; +exit: + return; +} + +/* + * __vxge_hw_blockpool_blocks_add - Request additional blocks + */ +static +void __vxge_hw_blockpool_blocks_add(struct __vxge_hw_blockpool *blockpool) +{ + u32 nreq = 0, i; + + if ((blockpool->pool_size + blockpool->req_out) < + VXGE_HW_MIN_DMA_BLOCK_POOL_SIZE) { + nreq = VXGE_HW_INCR_DMA_BLOCK_POOL_SIZE; + blockpool->req_out += nreq; + } + + for (i = 0; i < nreq; i++) + vxge_os_dma_malloc_async( + ((struct __vxge_hw_device *)blockpool->hldev)->pdev, + blockpool->hldev, VXGE_HW_BLOCK_SIZE); +} + +/* + * __vxge_hw_blockpool_blocks_remove - Free additional blocks + */ +static +void __vxge_hw_blockpool_blocks_remove(struct __vxge_hw_blockpool *blockpool) +{ + struct list_head *p, *n; + + list_for_each_safe(p, n, &blockpool->free_block_list) { + + if (blockpool->pool_size < blockpool->pool_max) + break; + + pci_unmap_single( + ((struct __vxge_hw_device *)blockpool->hldev)->pdev, + ((struct __vxge_hw_blockpool_entry *)p)->dma_addr, + ((struct __vxge_hw_blockpool_entry *)p)->length, + PCI_DMA_BIDIRECTIONAL); + + vxge_os_dma_free( + ((struct __vxge_hw_device *)blockpool->hldev)->pdev, + ((struct __vxge_hw_blockpool_entry *)p)->memblock, + &((struct __vxge_hw_blockpool_entry *)p)->acc_handle); + + list_del(&((struct __vxge_hw_blockpool_entry *)p)->item); + + list_add(p, &blockpool->free_entry_list); + + blockpool->pool_size--; + + } +} + +/* + * vxge_hw_blockpool_block_add - callback for vxge_os_dma_malloc_async + * Adds a block to block pool + */ +void vxge_hw_blockpool_block_add( + struct __vxge_hw_device *devh, + void *block_addr, + u32 length, + struct pci_dev *dma_h, + struct pci_dev *acc_handle) +{ + struct __vxge_hw_blockpool *blockpool; + struct __vxge_hw_blockpool_entry *entry = NULL; + dma_addr_t dma_addr; + enum vxge_hw_status status = VXGE_HW_OK; + u32 req_out; + + blockpool = &devh->block_pool; + + if (block_addr == NULL) { + blockpool->req_out--; + status = VXGE_HW_FAIL; + goto exit; + } + + dma_addr = pci_map_single(devh->pdev, block_addr, length, + PCI_DMA_BIDIRECTIONAL); + + if (unlikely(pci_dma_mapping_error(devh->pdev, dma_addr))) { + + vxge_os_dma_free(devh->pdev, block_addr, &acc_handle); + blockpool->req_out--; + status = VXGE_HW_FAIL; + goto exit; + } + + + if (!list_empty(&blockpool->free_entry_list)) + entry = (struct __vxge_hw_blockpool_entry *) + list_first_entry(&blockpool->free_entry_list, + struct __vxge_hw_blockpool_entry, + item); + + if (entry == NULL) + entry = (struct __vxge_hw_blockpool_entry *) + vmalloc(sizeof(struct __vxge_hw_blockpool_entry)); + else + list_del(&entry->item); + + if (entry != NULL) { + entry->length = length; + entry->memblock = block_addr; + entry->dma_addr = dma_addr; + entry->acc_handle = acc_handle; + entry->dma_handle = dma_h; + list_add(&entry->item, &blockpool->free_block_list); + blockpool->pool_size++; + status = VXGE_HW_OK; + } else + status = VXGE_HW_ERR_OUT_OF_MEMORY; + + blockpool->req_out--; + + req_out = blockpool->req_out; +exit: + return; +} + +/* + * __vxge_hw_blockpool_malloc - Allocate a memory block from pool + * Allocates a block of memory of given size, either from block pool + * or by calling vxge_os_dma_malloc() + */ +void * +__vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size, + struct vxge_hw_mempool_dma *dma_object) +{ + struct __vxge_hw_blockpool_entry *entry = NULL; + struct __vxge_hw_blockpool *blockpool; + void *memblock = NULL; + enum vxge_hw_status status = VXGE_HW_OK; + + blockpool = &devh->block_pool; + + if (size != blockpool->block_size) { + + memblock = vxge_os_dma_malloc(devh->pdev, size, + &dma_object->handle, + &dma_object->acc_handle); + + if (memblock == NULL) { + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + dma_object->addr = pci_map_single(devh->pdev, memblock, size, + PCI_DMA_BIDIRECTIONAL); + + if (unlikely(pci_dma_mapping_error(devh->pdev, + dma_object->addr))) { + vxge_os_dma_free(devh->pdev, memblock, + &dma_object->acc_handle); + status = VXGE_HW_ERR_OUT_OF_MEMORY; + goto exit; + } + + } else { + + if (!list_empty(&blockpool->free_block_list)) + entry = (struct __vxge_hw_blockpool_entry *) + list_first_entry(&blockpool->free_block_list, + struct __vxge_hw_blockpool_entry, + item); + + if (entry != NULL) { + list_del(&entry->item); + dma_object->addr = entry->dma_addr; + dma_object->handle = entry->dma_handle; + dma_object->acc_handle = entry->acc_handle; + memblock = entry->memblock; + + list_add(&entry->item, + &blockpool->free_entry_list); + blockpool->pool_size--; + } + + if (memblock != NULL) + __vxge_hw_blockpool_blocks_add(blockpool); + } +exit: + return memblock; +} + +/* + * __vxge_hw_blockpool_free - Frees the memory allcoated with + __vxge_hw_blockpool_malloc + */ +void +__vxge_hw_blockpool_free(struct __vxge_hw_device *devh, + void *memblock, u32 size, + struct vxge_hw_mempool_dma *dma_object) +{ + struct __vxge_hw_blockpool_entry *entry = NULL; + struct __vxge_hw_blockpool *blockpool; + enum vxge_hw_status status = VXGE_HW_OK; + + blockpool = &devh->block_pool; + + if (size != blockpool->block_size) { + pci_unmap_single(devh->pdev, dma_object->addr, size, + PCI_DMA_BIDIRECTIONAL); + vxge_os_dma_free(devh->pdev, memblock, &dma_object->acc_handle); + } else { + + if (!list_empty(&blockpool->free_entry_list)) + entry = (struct __vxge_hw_blockpool_entry *) + list_first_entry(&blockpool->free_entry_list, + struct __vxge_hw_blockpool_entry, + item); + + if (entry == NULL) + entry = (struct __vxge_hw_blockpool_entry *) + vmalloc(sizeof( + struct __vxge_hw_blockpool_entry)); + else + list_del(&entry->item); + + if (entry != NULL) { + entry->length = size; + entry->memblock = memblock; + entry->dma_addr = dma_object->addr; + entry->acc_handle = dma_object->acc_handle; + entry->dma_handle = dma_object->handle; + list_add(&entry->item, + &blockpool->free_block_list); + blockpool->pool_size++; + status = VXGE_HW_OK; + } else + status = VXGE_HW_ERR_OUT_OF_MEMORY; + + if (status == VXGE_HW_OK) + __vxge_hw_blockpool_blocks_remove(blockpool); + } + + return; +} + +/* + * __vxge_hw_blockpool_block_allocate - Allocates a block from block pool + * This function allocates a block from block pool or from the system + */ +struct __vxge_hw_blockpool_entry * +__vxge_hw_blockpool_block_allocate(struct __vxge_hw_device *devh, u32 size) +{ + struct __vxge_hw_blockpool_entry *entry = NULL; + struct __vxge_hw_blockpool *blockpool; + + blockpool = &devh->block_pool; + + if (size == blockpool->block_size) { + + if (!list_empty(&blockpool->free_block_list)) + entry = (struct __vxge_hw_blockpool_entry *) + list_first_entry(&blockpool->free_block_list, + struct __vxge_hw_blockpool_entry, + item); + + if (entry != NULL) { + list_del(&entry->item); + blockpool->pool_size--; + } + } + + if (entry != NULL) + __vxge_hw_blockpool_blocks_add(blockpool); + + return entry; +} + +/* + * __vxge_hw_blockpool_block_free - Frees a block from block pool + * @devh: Hal device + * @entry: Entry of block to be freed + * + * This function frees a block from block pool + */ +void +__vxge_hw_blockpool_block_free(struct __vxge_hw_device *devh, + struct __vxge_hw_blockpool_entry *entry) +{ + struct __vxge_hw_blockpool *blockpool; + + blockpool = &devh->block_pool; + + if (entry->length == blockpool->block_size) { + list_add(&entry->item, &blockpool->free_block_list); + blockpool->pool_size++; + } + + __vxge_hw_blockpool_blocks_remove(blockpool); + + return; +} diff --git a/drivers/net/vxge/vxge-config.h b/drivers/net/vxge/vxge-config.h new file mode 100644 index 00000000000..afbdf6f4d22 --- /dev/null +++ b/drivers/net/vxge/vxge-config.h @@ -0,0 +1,2259 @@ +/****************************************************************************** + * This software may be used and distributed according to the terms of + * the GNU General Public License (GPL), incorporated herein by reference. + * Drivers based on or derived from this code fall under the GPL and must + * retain the authorship, copyright and license notice. This file is not + * a complete program and may only be used when the entire operating + * system is licensed under the GPL. + * See the file COPYING in this distribution for more information. + * + * vxge-config.h: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O + * Virtualized Server Adapter. + * Copyright(c) 2002-2009 Neterion Inc. + ******************************************************************************/ +#ifndef VXGE_CONFIG_H +#define VXGE_CONFIG_H +#include <linux/list.h> + +#ifndef VXGE_CACHE_LINE_SIZE +#define VXGE_CACHE_LINE_SIZE 128 +#endif + +#define vxge_os_vaprintf(level, mask, fmt, ...) { \ + char buff[255]; \ + snprintf(buff, 255, fmt, __VA_ARGS__); \ + printk(buff); \ + printk("\n"); \ +} + +#ifndef VXGE_ALIGN +#define VXGE_ALIGN(adrs, size) \ + (((size) - (((u64)adrs) & ((size)-1))) & ((size)-1)) +#endif + +#define VXGE_HW_MIN_MTU 68 +#define VXGE_HW_MAX_MTU 9600 +#define VXGE_HW_DEFAULT_MTU 1500 + +#ifdef VXGE_DEBUG_ASSERT + +/** + * vxge_assert + * @test: C-condition to check + * @fmt: printf like format string + * + * This function implements traditional assert. By default assertions + * are enabled. It can be disabled by undefining VXGE_DEBUG_ASSERT macro in + * compilation + * time. + */ +#define vxge_assert(test) { \ + if (!(test)) \ + vxge_os_bug("bad cond: "#test" at %s:%d\n", \ + __FILE__, __LINE__); } +#else +#define vxge_assert(test) +#endif /* end of VXGE_DEBUG_ASSERT */ + +/** + * enum enum vxge_debug_level + * @VXGE_NONE: debug disabled + * @VXGE_ERR: all errors going to be logged out + * @VXGE_TRACE: all errors plus all kind of verbose tracing print outs + * going to be logged out. Very noisy. + * + * This enumeration going to be used to switch between different + * debug levels during runtime if DEBUG macro defined during + * compilation. If DEBUG macro not defined than code will be + * compiled out. + */ +enum vxge_debug_level { + VXGE_NONE = 0, + VXGE_TRACE = 1, + VXGE_ERR = 2 +}; + +#define NULL_VPID 0xFFFFFFFF +#ifdef CONFIG_VXGE_DEBUG_TRACE_ALL +#define VXGE_DEBUG_MODULE_MASK 0xffffffff +#define VXGE_DEBUG_TRACE_MASK 0xffffffff +#define VXGE_DEBUG_ERR_MASK 0xffffffff +#define VXGE_DEBUG_MASK 0x000001ff +#else +#define VXGE_DEBUG_MODULE_MASK 0x20000000 +#define VXGE_DEBUG_TRACE_MASK 0x20000000 +#define VXGE_DEBUG_ERR_MASK 0x20000000 +#define VXGE_DEBUG_MASK 0x00000001 +#endif + +/* + * @VXGE_COMPONENT_LL: do debug for vxge link layer module + * @VXGE_COMPONENT_ALL: activate debug for all modules with no exceptions + * + * This enumeration going to be used to distinguish modules + * or libraries during compilation and runtime. Makefile must declare + * VXGE_DEBUG_MODULE_MASK macro and set it to proper value. + */ +#define VXGE_COMPONENT_LL 0x20000000 +#define VXGE_COMPONENT_ALL 0xffffffff + +#define VXGE_HW_BASE_INF 100 +#define VXGE_HW_BASE_ERR 200 +#define VXGE_HW_BASE_BADCFG 300 + +enum vxge_hw_status { + VXGE_HW_OK = 0, + VXGE_HW_FAIL = 1, + VXGE_HW_PENDING = 2, + VXGE_HW_COMPLETIONS_REMAIN = 3, + + VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS = VXGE_HW_BASE_INF + 1, + VXGE_HW_INF_OUT_OF_DESCRIPTORS = VXGE_HW_BASE_INF + 2, + + VXGE_HW_ERR_INVALID_HANDLE = VXGE_HW_BASE_ERR + 1, + VXGE_HW_ERR_OUT_OF_MEMORY = VXGE_HW_BASE_ERR + 2, + VXGE_HW_ERR_VPATH_NOT_AVAILABLE = VXGE_HW_BASE_ERR + 3, + VXGE_HW_ERR_VPATH_NOT_OPEN = VXGE_HW_BASE_ERR + 4, + VXGE_HW_ERR_WRONG_IRQ = VXGE_HW_BASE_ERR + 5, + VXGE_HW_ERR_SWAPPER_CTRL = VXGE_HW_BASE_ERR + 6, + VXGE_HW_ERR_INVALID_MTU_SIZE = VXGE_HW_BASE_ERR + 7, + VXGE_HW_ERR_INVALID_INDEX = VXGE_HW_BASE_ERR + 8, + VXGE_HW_ERR_INVALID_TYPE = VXGE_HW_BASE_ERR + 9, + VXGE_HW_ERR_INVALID_OFFSET = VXGE_HW_BASE_ERR + 10, + VXGE_HW_ERR_INVALID_DEVICE = VXGE_HW_BASE_ERR + 11, + VXGE_HW_ERR_VERSION_CONFLICT = VXGE_HW_BASE_ERR + 12, + VXGE_HW_ERR_INVALID_PCI_INFO = VXGE_HW_BASE_ERR + 13, + VXGE_HW_ERR_INVALID_TCODE = VXGE_HW_BASE_ERR + 14, + VXGE_HW_ERR_INVALID_BLOCK_SIZE = VXGE_HW_BASE_ERR + 15, + VXGE_HW_ERR_INVALID_STATE = VXGE_HW_BASE_ERR + 16, + VXGE_HW_ERR_PRIVILAGED_OPEARATION = VXGE_HW_BASE_ERR + 17, + VXGE_HW_ERR_INVALID_PORT = VXGE_HW_BASE_ERR + 18, + VXGE_HW_ERR_FIFO = VXGE_HW_BASE_ERR + 19, + VXGE_HW_ERR_VPATH = VXGE_HW_BASE_ERR + 20, + VXGE_HW_ERR_CRITICAL = VXGE_HW_BASE_ERR + 21, + VXGE_HW_ERR_SLOT_FREEZE = VXGE_HW_BASE_ERR + 22, + + VXGE_HW_BADCFG_RING_INDICATE_MAX_PKTS = VXGE_HW_BASE_BADCFG + 1, + VXGE_HW_BADCFG_FIFO_BLOCKS = VXGE_HW_BASE_BADCFG + 2, + VXGE_HW_BADCFG_VPATH_MTU = VXGE_HW_BASE_BADCFG + 3, + VXGE_HW_BADCFG_VPATH_RPA_STRIP_VLAN_TAG = VXGE_HW_BASE_BADCFG + 4, + VXGE_HW_BADCFG_VPATH_MIN_BANDWIDTH = VXGE_HW_BASE_BADCFG + 5, + VXGE_HW_BADCFG_INTR_MODE = VXGE_HW_BASE_BADCFG + 6, + VXGE_HW_BADCFG_RTS_MAC_EN = VXGE_HW_BASE_BADCFG + 7, + + VXGE_HW_EOF_TRACE_BUF = -1 +}; + +/** + * enum enum vxge_hw_device_link_state - Link state enumeration. + * @VXGE_HW_LINK_NONE: Invalid link state. + * @VXGE_HW_LINK_DOWN: Link is down. + * @VXGE_HW_LINK_UP: Link is up. + * + */ +enum vxge_hw_device_link_state { + VXGE_HW_LINK_NONE, + VXGE_HW_LINK_DOWN, + VXGE_HW_LINK_UP +}; + +/** + * struct vxge_hw_device_date - Date Format + * @day: Day + * @month: Month + * @year: Year + * @date: Date in string format + * + * Structure for returning date + */ + +#define VXGE_HW_FW_STRLEN 32 +struct vxge_hw_device_date { + u32 day; + u32 month; + u32 year; + char date[VXGE_HW_FW_STRLEN]; +}; + +struct vxge_hw_device_version { + u32 major; + u32 minor; + u32 build; + char version[VXGE_HW_FW_STRLEN]; +}; + +u64 +__vxge_hw_vpath_pci_func_mode_get( + u32 vp_id, + struct vxge_hw_vpath_reg __iomem *vpath_reg); + +/** + * struct vxge_hw_fifo_config - Configuration of fifo. + * @enable: Is this fifo to be commissioned + * @fifo_blocks: Numbers of TxDL (that is, lists of Tx descriptors) + * blocks per queue. + * @max_frags: Max number of Tx buffers per TxDL (that is, per single + * transmit operation). + * No more than 256 transmit buffers can be specified. + * @memblock_size: Fifo descriptors are allocated in blocks of @mem_block_size + * bytes. Setting @memblock_size to page size ensures + * by-page allocation of descriptors. 128K bytes is the + * maximum supported block size. + * @alignment_size: per Tx fragment DMA-able memory used to align transmit data + * (e.g., to align on a cache line). + * @intr: Boolean. Use 1 to generate interrupt for each completed TxDL. + * Use 0 otherwise. + * @no_snoop_bits: If non-zero, specifies no-snoop PCI operation, + * which generally improves latency of the host bridge operation + * (see PCI specification). For valid values please refer + * to struct vxge_hw_fifo_config{} in the driver sources. + * Configuration of all Titan fifos. + * Note: Valid (min, max) range for each attribute is specified in the body of + * the struct vxge_hw_fifo_config{} structure. + */ +struct vxge_hw_fifo_config { + u32 enable; +#define VXGE_HW_FIFO_ENABLE 1 +#define VXGE_HW_FIFO_DISABLE 0 + + u32 fifo_blocks; +#define VXGE_HW_MIN_FIFO_BLOCKS 2 +#define VXGE_HW_MAX_FIFO_BLOCKS 128 + + u32 max_frags; +#define VXGE_HW_MIN_FIFO_FRAGS 1 +#define VXGE_HW_MAX_FIFO_FRAGS 256 + + u32 memblock_size; +#define VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE VXGE_HW_BLOCK_SIZE +#define VXGE_HW_MAX_FIFO_MEMBLOCK_SIZE 131072 +#define VXGE_HW_DEF_FIFO_MEMBLOCK_SIZE 8096 + + u32 alignment_size; +#define VXGE_HW_MIN_FIFO_ALIGNMENT_SIZE 0 +#define VXGE_HW_MAX_FIFO_ALIGNMENT_SIZE 65536 +#define VXGE_HW_DEF_FIFO_ALIGNMENT_SIZE VXGE_CACHE_LINE_SIZE + + u32 intr; +#define VXGE_HW_FIFO_QUEUE_INTR_ENABLE 1 +#define VXGE_HW_FIFO_QUEUE_INTR_DISABLE 0 +#define VXGE_HW_FIFO_QUEUE_INTR_DEFAULT 0 + + u32 no_snoop_bits; +#define VXGE_HW_FIFO_NO_SNOOP_DISABLED 0 +#define VXGE_HW_FIFO_NO_SNOOP_TXD 1 +#define VXGE_HW_FIFO_NO_SNOOP_FRM 2 +#define VXGE_HW_FIFO_NO_SNOOP_ALL 3 +#define VXGE_HW_FIFO_NO_SNOOP_DEFAULT 0 + +}; +/** + * struct vxge_hw_ring_config - Ring configurations. + * @enable: Is this ring to be commissioned + * @ring_blocks: Numbers of RxD blocks in the ring + * @buffer_mode: Receive buffer mode (1, 2, 3, or 5); for details please refer + * to Titan User Guide. + * @scatter_mode: Titan supports two receive scatter modes: A and B. + * For details please refer to Titan User Guide. + * @rx_timer_val: The number of 32ns periods that would be counted between two + * timer interrupts. + * @greedy_return: If Set it forces the device to return absolutely all RxD + * that are consumed and still on board when a timer interrupt + * triggers. If Clear, then if the device has already returned + * RxD before current timer interrupt trigerred and after the + * previous timer interrupt triggered, then the device is not + * forced to returned the rest of the consumed RxD that it has + * on board which account for a byte count less than the one + * programmed into PRC_CFG6.RXD_CRXDT field + * @rx_timer_ci: TBD + * @backoff_interval_us: Time (in microseconds), after which Titan + * tries to download RxDs posted by the host. + * Note that the "backoff" does not happen if host posts receive + * descriptors in the timely fashion. + * Ring configuration. + */ +struct vxge_hw_ring_config { + u32 enable; +#define VXGE_HW_RING_ENABLE 1 +#define VXGE_HW_RING_DISABLE 0 +#define VXGE_HW_RING_DEFAULT 1 + + u32 ring_blocks; +#define VXGE_HW_MIN_RING_BLOCKS 1 +#define VXGE_HW_MAX_RING_BLOCKS 128 +#define VXGE_HW_DEF_RING_BLOCKS 2 + + u32 buffer_mode; +#define VXGE_HW_RING_RXD_BUFFER_MODE_1 1 +#define VXGE_HW_RING_RXD_BUFFER_MODE_3 3 +#define VXGE_HW_RING_RXD_BUFFER_MODE_5 5 +#define VXGE_HW_RING_RXD_BUFFER_MODE_DEFAULT 1 + + u32 scatter_mode; +#define VXGE_HW_RING_SCATTER_MODE_A 0 +#define VXGE_HW_RING_SCATTER_MODE_B 1 +#define VXGE_HW_RING_SCATTER_MODE_C 2 +#define VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT 0xffffffff + + u64 rxds_limit; +#define VXGE_HW_DEF_RING_RXDS_LIMIT 44 +}; + +/** + * struct vxge_hw_vp_config - Configuration of virtual path + * @vp_id: Virtual Path Id + * @min_bandwidth: Minimum Guaranteed bandwidth + * @ring: See struct vxge_hw_ring_config{}. + * @fifo: See struct vxge_hw_fifo_config{}. + * @tti: Configuration of interrupt associated with Transmit. + * see struct vxge_hw_tim_intr_config(); + * @rti: Configuration of interrupt associated with Receive. + * see struct vxge_hw_tim_intr_config(); + * @mtu: mtu size used on this port. + * @rpa_strip_vlan_tag: Strip VLAN Tag enable/disable. Instructs the device to + * remove the VLAN tag from all received tagged frames that are not + * replicated at the internal L2 switch. + * 0 - Do not strip the VLAN tag. + * 1 - Strip the VLAN tag. Regardless of this setting, VLAN tags are + * always placed into the RxDMA descriptor. + * + * This structure is used by the driver to pass the configuration parameters to + * configure Virtual Path. + */ +struct vxge_hw_vp_config { + u32 vp_id; + +#define VXGE_HW_VPATH_PRIORITY_MIN 0 +#define VXGE_HW_VPATH_PRIORITY_MAX 16 +#define VXGE_HW_VPATH_PRIORITY_DEFAULT 0 + + u32 min_bandwidth; +#define VXGE_HW_VPATH_BANDWIDTH_MIN 0 +#define VXGE_HW_VPATH_BANDWIDTH_MAX 100 +#define VXGE_HW_VPATH_BANDWIDTH_DEFAULT 0 + + struct vxge_hw_ring_config ring; + struct vxge_hw_fifo_config fifo; + struct vxge_hw_tim_intr_config tti; + struct vxge_hw_tim_intr_config rti; + + u32 mtu; +#define VXGE_HW_VPATH_MIN_INITIAL_MTU VXGE_HW_MIN_MTU +#define VXGE_HW_VPATH_MAX_INITIAL_MTU VXGE_HW_MAX_MTU +#define VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU 0xffffffff + + u32 rpa_strip_vlan_tag; +#define VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE 1 +#define VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_DISABLE 0 +#define VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT 0xffffffff + +}; +/** + * struct vxge_hw_device_config - Device configuration. + * @dma_blockpool_initial: Initial size of DMA Pool + * @dma_blockpool_max: Maximum blocks in DMA pool + * @intr_mode: Line, or MSI-X interrupt. + * + * @rth_en: Enable Receive Traffic Hashing(RTH) using IT(Indirection Table). + * @rth_it_type: RTH IT table programming type + * @rts_mac_en: Enable Receive Traffic Steering using MAC destination address + * @vp_config: Configuration for virtual paths + * @device_poll_millis: Specify the interval (in mulliseconds) + * to wait for register reads + * + * Titan configuration. + * Contains per-device configuration parameters, including: + * - stats sampling interval, etc. + * + * In addition, struct vxge_hw_device_config{} includes "subordinate" + * configurations, including: + * - fifos and rings; + * - MAC (done at firmware level). + * + * See Titan User Guide for more details. + * Note: Valid (min, max) range for each attribute is specified in the body of + * the struct vxge_hw_device_config{} structure. Please refer to the + * corresponding include file. + * See also: struct vxge_hw_tim_intr_config{}. + */ +struct vxge_hw_device_config { + u32 dma_blockpool_initial; + u32 dma_blockpool_max; +#define VXGE_HW_MIN_DMA_BLOCK_POOL_SIZE 0 +#define VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE 0 +#define VXGE_HW_INCR_DMA_BLOCK_POOL_SIZE 4 +#define VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE 4096 + +#define VXGE_HW_MAX_PAYLOAD_SIZE_512 2 + + u32 intr_mode; +#define VXGE_HW_INTR_MODE_IRQLINE 0 +#define VXGE_HW_INTR_MODE_MSIX 1 +#define VXGE_HW_INTR_MODE_MSIX_ONE_SHOT 2 + +#define VXGE_HW_INTR_MODE_DEF 0 + + u32 rth_en; +#define VXGE_HW_RTH_DISABLE 0 +#define VXGE_HW_RTH_ENABLE 1 +#define VXGE_HW_RTH_DEFAULT 0 + + u32 rth_it_type; +#define VXGE_HW_RTH_IT_TYPE_SOLO_IT 0 +#define VXGE_HW_RTH_IT_TYPE_MULTI_IT 1 +#define VXGE_HW_RTH_IT_TYPE_DEFAULT 0 + + u32 rts_mac_en; +#define VXGE_HW_RTS_MAC_DISABLE 0 +#define VXGE_HW_RTS_MAC_ENABLE 1 +#define VXGE_HW_RTS_MAC_DEFAULT 0 + + struct vxge_hw_vp_config vp_config[VXGE_HW_MAX_VIRTUAL_PATHS]; + + u32 device_poll_millis; +#define VXGE_HW_MIN_DEVICE_POLL_MILLIS 1 +#define VXGE_HW_MAX_DEVICE_POLL_MILLIS 100000 +#define VXGE_HW_DEF_DEVICE_POLL_MILLIS 1000 + +}; + +/** + * function vxge_uld_link_up_f - Link-Up callback provided by driver. + * @devh: HW device handle. + * Link-up notification callback provided by the driver. + * This is one of the per-driver callbacks, see struct vxge_hw_uld_cbs{}. + * + * See also: struct vxge_hw_uld_cbs{}, vxge_uld_link_down_f{}, + * vxge_hw_driver_initialize(). + */ + +/** + * function vxge_uld_link_down_f - Link-Down callback provided by + * driver. + * @devh: HW device handle. + * + * Link-Down notification callback provided by the driver. + * This is one of the per-driver callbacks, see struct vxge_hw_uld_cbs{}. + * + * See also: struct vxge_hw_uld_cbs{}, vxge_uld_link_up_f{}, + * vxge_hw_driver_initialize(). + */ + +/** + * function vxge_uld_crit_err_f - Critical Error notification callback. + * @devh: HW device handle. + * (typically - at HW device iinitialization time). + * @type: Enumerated hw error, e.g.: double ECC. + * @serr_data: Titan status. + * @ext_data: Extended data. The contents depends on the @type. + * + * Link-Down notification callback provided by the driver. + * This is one of the per-driver callbacks, see struct vxge_hw_uld_cbs{}. + * + * See also: struct vxge_hw_uld_cbs{}, enum vxge_hw_event{}, + * vxge_hw_driver_initialize(). + */ + +/** + * struct vxge_hw_uld_cbs - driver "slow-path" callbacks. + * @link_up: See vxge_uld_link_up_f{}. + * @link_down: See vxge_uld_link_down_f{}. + * @crit_err: See vxge_uld_crit_err_f{}. + * + * Driver slow-path (per-driver) callbacks. + * Implemented by driver and provided to HW via + * vxge_hw_driver_initialize(). + * Note that these callbacks are not mandatory: HW will not invoke + * a callback if NULL is specified. + * + * See also: vxge_hw_driver_initialize(). + */ +struct vxge_hw_uld_cbs { + + void (*link_up)(struct __vxge_hw_device *devh); + void (*link_down)(struct __vxge_hw_device *devh); + void (*crit_err)(struct __vxge_hw_device *devh, + enum vxge_hw_event type, u64 ext_data); +}; + +/* + * struct __vxge_hw_blockpool_entry - Block private data structure + * @item: List header used to link. + * @length: Length of the block + * @memblock: Virtual address block + * @dma_addr: DMA Address of the block. + * @dma_handle: DMA handle of the block. + * @acc_handle: DMA acc handle + * + * Block is allocated with a header to put the blocks into list. + * + */ +struct __vxge_hw_blockpool_entry { + struct list_head item; + u32 length; + void *memblock; + dma_addr_t dma_addr; + struct pci_dev *dma_handle; + struct pci_dev *acc_handle; +}; + +/* + * struct __vxge_hw_blockpool - Block Pool + * @hldev: HW device + * @block_size: size of each block. + * @Pool_size: Number of blocks in the pool + * @pool_max: Maximum number of blocks above which to free additional blocks + * @req_out: Number of block requests with OS out standing + * @free_block_list: List of free blocks + * + * Block pool contains the DMA blocks preallocated. + * + */ +struct __vxge_hw_blockpool { + struct __vxge_hw_device *hldev; + u32 block_size; + u32 pool_size; + u32 pool_max; + u32 req_out; + struct list_head free_block_list; + struct list_head free_entry_list; +}; + +/* + * enum enum __vxge_hw_channel_type - Enumerated channel types. + * @VXGE_HW_CHANNEL_TYPE_UNKNOWN: Unknown channel. + * @VXGE_HW_CHANNEL_TYPE_FIFO: fifo. + * @VXGE_HW_CHANNEL_TYPE_RING: ring. + * @VXGE_HW_CHANNEL_TYPE_MAX: Maximum number of HW-supported + * (and recognized) channel types. Currently: 2. + * + * Enumerated channel types. Currently there are only two link-layer + * channels - Titan fifo and Titan ring. In the future the list will grow. + */ +enum __vxge_hw_channel_type { + VXGE_HW_CHANNEL_TYPE_UNKNOWN = 0, + VXGE_HW_CHANNEL_TYPE_FIFO = 1, + VXGE_HW_CHANNEL_TYPE_RING = 2, + VXGE_HW_CHANNEL_TYPE_MAX = 3 +}; + +/* + * struct __vxge_hw_channel + * @item: List item; used to maintain a list of open channels. + * @type: Channel type. See enum vxge_hw_channel_type{}. + * @devh: Device handle. HW device object that contains _this_ channel. + * @vph: Virtual path handle. Virtual Path Object that contains _this_ channel. + * @length: Channel length. Currently allocated number of descriptors. + * The channel length "grows" when more descriptors get allocated. + * See _hw_mempool_grow. + * @reserve_arr: Reserve array. Contains descriptors that can be reserved + * by driver for the subsequent send or receive operation. + * See vxge_hw_fifo_txdl_reserve(), + * vxge_hw_ring_rxd_reserve(). + * @reserve_ptr: Current pointer in the resrve array + * @reserve_top: Reserve top gives the maximum number of dtrs available in + * reserve array. + * @work_arr: Work array. Contains descriptors posted to the channel. + * Note that at any point in time @work_arr contains 3 types of + * descriptors: + * 1) posted but not yet consumed by Titan device; + * 2) consumed but not yet completed; + * 3) completed but not yet freed + * (via vxge_hw_fifo_txdl_free() or vxge_hw_ring_rxd_free()) + * @post_index: Post index. At any point in time points on the + * position in the channel, which'll contain next to-be-posted + * descriptor. + * @compl_index: Completion index. At any point in time points on the + * position in the channel, which will contain next + * to-be-completed descriptor. + * @free_arr: Free array. Contains completed descriptors that were freed + * (i.e., handed over back to HW) by driver. + * See vxge_hw_fifo_txdl_free(), vxge_hw_ring_rxd_free(). + * @free_ptr: current pointer in free array + * @per_dtr_space: Per-descriptor space (in bytes) that channel user can utilize + * to store per-operation control information. + * @stats: Pointer to common statistics + * @userdata: Per-channel opaque (void*) user-defined context, which may be + * driver object, ULP connection, etc. + * Once channel is open, @userdata is passed back to user via + * vxge_hw_channel_callback_f. + * + * HW channel object. + * + * See also: enum vxge_hw_channel_type{}, enum vxge_hw_channel_flag + */ +struct __vxge_hw_channel { + struct list_head item; + enum __vxge_hw_channel_type type; + struct __vxge_hw_device *devh; + struct __vxge_hw_vpath_handle *vph; + u32 length; + u32 vp_id; + void **reserve_arr; + u32 reserve_ptr; + u32 reserve_top; + void **work_arr; + u32 post_index ____cacheline_aligned; + u32 compl_index ____cacheline_aligned; + void **free_arr; + u32 free_ptr; + void **orig_arr; + u32 per_dtr_space; + void *userdata; + struct vxge_hw_common_reg __iomem *common_reg; + u32 first_vp_id; + struct vxge_hw_vpath_stats_sw_common_info *stats; + +} ____cacheline_aligned; + +/* + * struct __vxge_hw_virtualpath - Virtual Path + * + * @vp_id: Virtual path id + * @vp_open: This flag specifies if vxge_hw_vp_open is called from LL Driver + * @hldev: Hal device + * @vp_config: Virtual Path Config + * @vp_reg: VPATH Register map address in BAR0 + * @vpmgmt_reg: VPATH_MGMT register map address + * @max_mtu: Max mtu that can be supported + * @vsport_number: vsport attached to this vpath + * @max_kdfc_db: Maximum kernel mode doorbells + * @max_nofl_db: Maximum non offload doorbells + * @tx_intr_num: Interrupt Number associated with the TX + + * @ringh: Ring Queue + * @fifoh: FIFO Queue + * @vpath_handles: Virtual Path handles list + * @stats_block: Memory for DMAing stats + * @stats: Vpath statistics + * + * Virtual path structure to encapsulate the data related to a virtual path. + * Virtual paths are allocated by the HW upon getting configuration from the + * driver and inserted into the list of virtual paths. + */ +struct __vxge_hw_virtualpath { + u32 vp_id; + + u32 vp_open; +#define VXGE_HW_VP_NOT_OPEN 0 +#define VXGE_HW_VP_OPEN 1 + + struct __vxge_hw_device *hldev; + struct vxge_hw_vp_config *vp_config; + struct vxge_hw_vpath_reg __iomem *vp_reg; + struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg; + struct __vxge_hw_non_offload_db_wrapper __iomem *nofl_db; + + u32 max_mtu; + u32 vsport_number; + u32 max_kdfc_db; + u32 max_nofl_db; + + struct __vxge_hw_ring *____cacheline_aligned ringh; + struct __vxge_hw_fifo *____cacheline_aligned fifoh; + struct list_head vpath_handles; + struct __vxge_hw_blockpool_entry *stats_block; + struct vxge_hw_vpath_stats_hw_info *hw_stats; + struct vxge_hw_vpath_stats_hw_info *hw_stats_sav; + struct vxge_hw_vpath_stats_sw_info *sw_stats; +}; + +/* + * struct __vxge_hw_vpath_handle - List item to store callback information + * @item: List head to keep the item in linked list + * @vpath: Virtual path to which this item belongs + * + * This structure is used to store the callback information. + */ +struct __vxge_hw_vpath_handle{ + struct list_head item; + struct __vxge_hw_virtualpath *vpath; +}; + +/* + * struct __vxge_hw_device + * + * HW device object. + */ +/** + * struct __vxge_hw_device - Hal device object + * @magic: Magic Number + * @device_id: PCI Device Id of the adapter + * @major_revision: PCI Device major revision + * @minor_revision: PCI Device minor revision + * @bar0: BAR0 virtual address. + * @bar1: BAR1 virtual address. + * @bar2: BAR2 virtual address. + * @pdev: Physical device handle + * @config: Confguration passed by the LL driver at initialization + * @link_state: Link state + * + * HW device object. Represents Titan adapter + */ +struct __vxge_hw_device { + u32 magic; +#define VXGE_HW_DEVICE_MAGIC 0x12345678 +#define VXGE_HW_DEVICE_DEAD 0xDEADDEAD + u16 device_id; + u8 major_revision; + u8 minor_revision; + void __iomem *bar0; + void __iomem *bar1; + void __iomem *bar2; + struct pci_dev *pdev; + struct net_device *ndev; + struct vxge_hw_device_config config; + enum vxge_hw_device_link_state link_state; + + struct vxge_hw_uld_cbs uld_callbacks; + + u32 host_type; + u32 func_id; + u32 access_rights; +#define VXGE_HW_DEVICE_ACCESS_RIGHT_VPATH 0x1 +#define VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM 0x2 +#define VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM 0x4 + struct vxge_hw_legacy_reg __iomem *legacy_reg; + struct vxge_hw_toc_reg __iomem *toc_reg; + struct vxge_hw_common_reg __iomem *common_reg; + struct vxge_hw_mrpcim_reg __iomem *mrpcim_reg; + struct vxge_hw_srpcim_reg __iomem *srpcim_reg \ + [VXGE_HW_TITAN_SRPCIM_REG_SPACES]; + struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg \ + [VXGE_HW_TITAN_VPMGMT_REG_SPACES]; + struct vxge_hw_vpath_reg __iomem *vpath_reg \ + [VXGE_HW_TITAN_VPATH_REG_SPACES]; + u8 __iomem *kdfc; + u8 __iomem *usdc; + struct __vxge_hw_virtualpath virtual_paths \ + [VXGE_HW_MAX_VIRTUAL_PATHS]; + u64 vpath_assignments; + u64 vpaths_deployed; + u32 first_vp_id; + u64 tim_int_mask0[4]; + u32 tim_int_mask1[4]; + + struct __vxge_hw_blockpool block_pool; + struct vxge_hw_device_stats stats; + u32 debug_module_mask; + u32 debug_level; + u32 level_err; + u32 level_trace; +}; + +#define VXGE_HW_INFO_LEN 64 +/** + * struct vxge_hw_device_hw_info - Device information + * @host_type: Host Type + * @func_id: Function Id + * @vpath_mask: vpath bit mask + * @fw_version: Firmware version + * @fw_date: Firmware Date + * @flash_version: Firmware version + * @flash_date: Firmware Date + * @mac_addrs: Mac addresses for each vpath + * @mac_addr_masks: Mac address masks for each vpath + * + * Returns the vpath mask that has the bits set for each vpath allocated + * for the driver and the first mac address for each vpath + */ +struct vxge_hw_device_hw_info { + u32 host_type; +#define VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION 0 +#define VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION 1 +#define VXGE_HW_NO_MR_SR_VH0_FUNCTION0 2 +#define VXGE_HW_NO_MR_SR_VH0_VIRTUAL_FUNCTION 3 +#define VXGE_HW_MR_SR_VH0_INVALID_CONFIG 4 +#define VXGE_HW_SR_VH_FUNCTION0 5 +#define VXGE_HW_SR_VH_VIRTUAL_FUNCTION 6 +#define VXGE_HW_VH_NORMAL_FUNCTION 7 + u64 function_mode; +#define VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION 0 +#define VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION 1 +#define VXGE_HW_FUNCTION_MODE_SRIOV 2 +#define VXGE_HW_FUNCTION_MODE_MRIOV 3 + u32 func_id; + u64 vpath_mask; + struct vxge_hw_device_version fw_version; + struct vxge_hw_device_date fw_date; + struct vxge_hw_device_version flash_version; + struct vxge_hw_device_date flash_date; + u8 serial_number[VXGE_HW_INFO_LEN]; + u8 part_number[VXGE_HW_INFO_LEN]; + u8 product_desc[VXGE_HW_INFO_LEN]; + u8 (mac_addrs)[VXGE_HW_MAX_VIRTUAL_PATHS][ETH_ALEN]; + u8 (mac_addr_masks)[VXGE_HW_MAX_VIRTUAL_PATHS][ETH_ALEN]; +}; + +/** + * struct vxge_hw_device_attr - Device memory spaces. + * @bar0: BAR0 virtual address. + * @bar1: BAR1 virtual address. + * @bar2: BAR2 virtual address. + * @pdev: PCI device object. + * + * Device memory spaces. Includes configuration, BAR0, BAR1, etc. per device + * mapped memories. Also, includes a pointer to OS-specific PCI device object. + */ +struct vxge_hw_device_attr { + void __iomem *bar0; + void __iomem *bar1; + void __iomem *bar2; + struct pci_dev *pdev; + struct vxge_hw_uld_cbs uld_callbacks; +}; + +#define VXGE_HW_DEVICE_LINK_STATE_SET(hldev, ls) (hldev->link_state = ls) + +#define VXGE_HW_DEVICE_TIM_INT_MASK_SET(m0, m1, i) { \ + if (i < 16) { \ + m0[0] |= vxge_vBIT(0x8, (i*4), 4); \ + m0[1] |= vxge_vBIT(0x4, (i*4), 4); \ + } \ + else { \ + m1[0] = 0x80000000; \ + m1[1] = 0x40000000; \ + } \ +} + +#define VXGE_HW_DEVICE_TIM_INT_MASK_RESET(m0, m1, i) { \ + if (i < 16) { \ + m0[0] &= ~vxge_vBIT(0x8, (i*4), 4); \ + m0[1] &= ~vxge_vBIT(0x4, (i*4), 4); \ + } \ + else { \ + m1[0] = 0; \ + m1[1] = 0; \ + } \ +} + +#define VXGE_HW_DEVICE_STATS_PIO_READ(loc, offset) { \ + status = vxge_hw_mrpcim_stats_access(hldev, \ + VXGE_HW_STATS_OP_READ, \ + loc, \ + offset, \ + &val64); \ + \ + if (status != VXGE_HW_OK) \ + return status; \ +} + +#define VXGE_HW_VPATH_STATS_PIO_READ(offset) { \ + status = __vxge_hw_vpath_stats_access(vpath, \ + VXGE_HW_STATS_OP_READ, \ + offset, \ + &val64); \ + if (status != VXGE_HW_OK) \ + return status; \ +} + +/* + * struct __vxge_hw_ring - Ring channel. + * @channel: Channel "base" of this ring, the common part of all HW + * channels. + * @mempool: Memory pool, the pool from which descriptors get allocated. + * (See vxge_hw_mm.h). + * @config: Ring configuration, part of device configuration + * (see struct vxge_hw_device_config{}). + * @ring_length: Length of the ring + * @buffer_mode: 1, 3, or 5. The value specifies a receive buffer mode, + * as per Titan User Guide. + * @rxd_size: RxD sizes for 1-, 3- or 5- buffer modes. As per Titan spec, + * 1-buffer mode descriptor is 32 byte long, etc. + * @rxd_priv_size: Per RxD size reserved (by HW) for driver to keep + * per-descriptor data (e.g., DMA handle for Solaris) + * @per_rxd_space: Per rxd space requested by driver + * @rxds_per_block: Number of descriptors per hardware-defined RxD + * block. Depends on the (1-, 3-, 5-) buffer mode. + * @rxdblock_priv_size: Reserved at the end of each RxD block. HW internal + * usage. Not to confuse with @rxd_priv_size. + * @cmpl_cnt: Completion counter. Is reset to zero upon entering the ISR. + * @callback: Channel completion callback. HW invokes the callback when there + * are new completions on that channel. In many implementations + * the @callback executes in the hw interrupt context. + * @rxd_init: Channel's descriptor-initialize callback. + * See vxge_hw_ring_rxd_init_f{}. + * If not NULL, HW invokes the callback when opening + * the ring. + * @rxd_term: Channel's descriptor-terminate callback. If not NULL, + * HW invokes the callback when closing the corresponding channel. + * See also vxge_hw_channel_rxd_term_f{}. + * @stats: Statistics for ring + * Ring channel. + * + * Note: The structure is cache line aligned to better utilize + * CPU cache performance. + */ +struct __vxge_hw_ring { + struct __vxge_hw_channel channel; + struct vxge_hw_mempool *mempool; + struct vxge_hw_vpath_reg __iomem *vp_reg; + struct vxge_hw_common_reg __iomem *common_reg; + u32 ring_length; + u32 buffer_mode; + u32 rxd_size; + u32 rxd_priv_size; + u32 per_rxd_space; + u32 rxds_per_block; + u32 rxdblock_priv_size; + u32 cmpl_cnt; + u32 vp_id; + u32 doorbell_cnt; + u32 total_db_cnt; + u64 rxds_limit; + + enum vxge_hw_status (*callback)( + struct __vxge_hw_ring *ringh, + void *rxdh, + u8 t_code, + void *userdata); + + enum vxge_hw_status (*rxd_init)( + void *rxdh, + void *userdata); + + void (*rxd_term)( + void *rxdh, + enum vxge_hw_rxd_state state, + void *userdata); + + struct vxge_hw_vpath_stats_sw_ring_info *stats ____cacheline_aligned; + struct vxge_hw_ring_config *config; +} ____cacheline_aligned; + +/** + * enum enum vxge_hw_txdl_state - Descriptor (TXDL) state. + * @VXGE_HW_TXDL_STATE_NONE: Invalid state. + * @VXGE_HW_TXDL_STATE_AVAIL: Descriptor is available for reservation. + * @VXGE_HW_TXDL_STATE_POSTED: Descriptor is posted for processing by the + * device. + * @VXGE_HW_TXDL_STATE_FREED: Descriptor is free and can be reused for + * filling-in and posting later. + * + * Titan/HW descriptor states. + * + */ +enum vxge_hw_txdl_state { + VXGE_HW_TXDL_STATE_NONE = 0, + VXGE_HW_TXDL_STATE_AVAIL = 1, + VXGE_HW_TXDL_STATE_POSTED = 2, + VXGE_HW_TXDL_STATE_FREED = 3 +}; +/* + * struct __vxge_hw_fifo - Fifo. + * @channel: Channel "base" of this fifo, the common part of all HW + * channels. + * @mempool: Memory pool, from which descriptors get allocated. + * @config: Fifo configuration, part of device configuration + * (see struct vxge_hw_device_config{}). + * @interrupt_type: Interrupt type to be used + * @no_snoop_bits: See struct vxge_hw_fifo_config{}. + * @txdl_per_memblock: Number of TxDLs (TxD lists) per memblock. + * on TxDL please refer to Titan UG. + * @txdl_size: Configured TxDL size (i.e., number of TxDs in a list), plus + * per-TxDL HW private space (struct __vxge_hw_fifo_txdl_priv). + * @priv_size: Per-Tx descriptor space reserved for driver + * usage. + * @per_txdl_space: Per txdl private space for the driver + * @callback: Fifo completion callback. HW invokes the callback when there + * are new completions on that fifo. In many implementations + * the @callback executes in the hw interrupt context. + * @txdl_term: Fifo's descriptor-terminate callback. If not NULL, + * HW invokes the callback when closing the corresponding fifo. + * See also vxge_hw_fifo_txdl_term_f{}. + * @stats: Statistics of this fifo + * + * Fifo channel. + * Note: The structure is cache line aligned. + */ +struct __vxge_hw_fifo { + struct __vxge_hw_channel channel; + struct vxge_hw_mempool *mempool; + struct vxge_hw_fifo_config *config; + struct vxge_hw_vpath_reg __iomem *vp_reg; + struct __vxge_hw_non_offload_db_wrapper __iomem *nofl_db; + u64 interrupt_type; + u32 no_snoop_bits; + u32 txdl_per_memblock; + u32 txdl_size; + u32 priv_size; + u32 per_txdl_space; + u32 vp_id; + u32 tx_intr_num; + + enum vxge_hw_status (*callback)( + struct __vxge_hw_fifo *fifo_handle, + void *txdlh, + enum vxge_hw_fifo_tcode t_code, + void *userdata, + void **skb_ptr); + + void (*txdl_term)( + void *txdlh, + enum vxge_hw_txdl_state state, + void *userdata); + + struct vxge_hw_vpath_stats_sw_fifo_info *stats ____cacheline_aligned; +} ____cacheline_aligned; + +/* + * struct __vxge_hw_fifo_txdl_priv - Transmit descriptor HW-private data. + * @dma_addr: DMA (mapped) address of _this_ descriptor. + * @dma_handle: DMA handle used to map the descriptor onto device. + * @dma_offset: Descriptor's offset in the memory block. HW allocates + * descriptors in memory blocks (see struct vxge_hw_fifo_config{}) + * Each memblock is a contiguous block of DMA-able memory. + * @frags: Total number of fragments (that is, contiguous data buffers) + * carried by this TxDL. + * @align_vaddr_start: Aligned virtual address start + * @align_vaddr: Virtual address of the per-TxDL area in memory used for + * alignement. Used to place one or more mis-aligned fragments + * @align_dma_addr: DMA address translated from the @align_vaddr. + * @align_dma_handle: DMA handle that corresponds to @align_dma_addr. + * @align_dma_acch: DMA access handle corresponds to @align_dma_addr. + * @align_dma_offset: The current offset into the @align_vaddr area. + * Grows while filling the descriptor, gets reset. + * @align_used_frags: Number of fragments used. + * @alloc_frags: Total number of fragments allocated. + * @unused: TODO + * @next_txdl_priv: (TODO). + * @first_txdp: (TODO). + * @linked_txdl_priv: Pointer to any linked TxDL for creating contiguous + * TxDL list. + * @txdlh: Corresponding txdlh to this TxDL. + * @memblock: Pointer to the TxDL memory block or memory page. + * on the next send operation. + * @dma_object: DMA address and handle of the memory block that contains + * the descriptor. This member is used only in the "checked" + * version of the HW (to enforce certain assertions); + * otherwise it gets compiled out. + * @allocated: True if the descriptor is reserved, 0 otherwise. Internal usage. + * + * Per-transmit decsriptor HW-private data. HW uses the space to keep DMA + * information associated with the descriptor. Note that driver can ask HW + * to allocate additional per-descriptor space for its own (driver-specific) + * purposes. + * + * See also: struct vxge_hw_ring_rxd_priv{}. + */ +struct __vxge_hw_fifo_txdl_priv { + dma_addr_t dma_addr; + struct pci_dev *dma_handle; + ptrdiff_t dma_offset; + u32 frags; + u8 *align_vaddr_start; + u8 *align_vaddr; + dma_addr_t align_dma_addr; + struct pci_dev *align_dma_handle; + struct pci_dev *align_dma_acch; + ptrdiff_t align_dma_offset; + u32 align_used_frags; + u32 alloc_frags; + u32 unused; + struct __vxge_hw_fifo_txdl_priv *next_txdl_priv; + struct vxge_hw_fifo_txd *first_txdp; + void *memblock; +}; + +/* + * struct __vxge_hw_non_offload_db_wrapper - Non-offload Doorbell Wrapper + * @control_0: Bits 0 to 7 - Doorbell type. + * Bits 8 to 31 - Reserved. + * Bits 32 to 39 - The highest TxD in this TxDL. + * Bits 40 to 47 - Reserved. + * Bits 48 to 55 - Reserved. + * Bits 56 to 63 - No snoop flags. + * @txdl_ptr: The starting location of the TxDL in host memory. + * + * Created by the host and written to the adapter via PIO to a Kernel Doorbell + * FIFO. All non-offload doorbell wrapper fields must be written by the host as + * part of a doorbell write. Consumed by the adapter but is not written by the + * adapter. + */ +struct __vxge_hw_non_offload_db_wrapper { + u64 control_0; +#define VXGE_HW_NODBW_GET_TYPE(ctrl0) vxge_bVALn(ctrl0, 0, 8) +#define VXGE_HW_NODBW_TYPE(val) vxge_vBIT(val, 0, 8) +#define VXGE_HW_NODBW_TYPE_NODBW 0 + +#define VXGE_HW_NODBW_GET_LAST_TXD_NUMBER(ctrl0) vxge_bVALn(ctrl0, 32, 8) +#define VXGE_HW_NODBW_LAST_TXD_NUMBER(val) vxge_vBIT(val, 32, 8) + +#define VXGE_HW_NODBW_GET_NO_SNOOP(ctrl0) vxge_bVALn(ctrl0, 56, 8) +#define VXGE_HW_NODBW_LIST_NO_SNOOP(val) vxge_vBIT(val, 56, 8) +#define VXGE_HW_NODBW_LIST_NO_SNOOP_TXD_READ_TXD0_WRITE 0x2 +#define VXGE_HW_NODBW_LIST_NO_SNOOP_TX_FRAME_DATA_READ 0x1 + + u64 txdl_ptr; +}; + +/* + * TX Descriptor + */ + +/** + * struct vxge_hw_fifo_txd - Transmit Descriptor + * @control_0: Bits 0 to 6 - Reserved. + * Bit 7 - List Ownership. This field should be initialized + * to '1' by the driver before the transmit list pointer is + * written to the adapter. This field will be set to '0' by the + * adapter once it has completed transmitting the frame or frames in + * the list. Note - This field is only valid in TxD0. Additionally, + * for multi-list sequences, the driver should not release any + * buffers until the ownership of the last list in the multi-list + * sequence has been returned to the host. + * Bits 8 to 11 - Reserved + * Bits 12 to 15 - Transfer_Code. This field is only valid in + * TxD0. It is used to describe the status of the transmit data + * buffer transfer. This field is always overwritten by the + * adapter, so this field may be initialized to any value. + * Bits 16 to 17 - Host steering. This field allows the host to + * override the selection of the physical transmit port. + * Attention: + * Normal sounds as if learned from the switch rather than from + * the aggregation algorythms. + * 00: Normal. Use Destination/MAC Address + * lookup to determine the transmit port. + * 01: Send on physical Port1. + * 10: Send on physical Port0. + * 11: Send on both ports. + * Bits 18 to 21 - Reserved + * Bits 22 to 23 - Gather_Code. This field is set by the host and + * is used to describe how individual buffers comprise a frame. + * 10: First descriptor of a frame. + * 00: Middle of a multi-descriptor frame. + * 01: Last descriptor of a frame. + * 11: First and last descriptor of a frame (the entire frame + * resides in a single buffer). + * For multi-descriptor frames, the only valid gather code sequence + * is {10, [00], 01}. In other words, the descriptors must be placed + * in the list in the correct order. + * Bits 24 to 27 - Reserved + * Bits 28 to 29 - LSO_Frm_Encap. LSO Frame Encapsulation + * definition. Only valid in TxD0. This field allows the host to + * indicate the Ethernet encapsulation of an outbound LSO packet. + * 00 - classic mode (best guess) + * 01 - LLC + * 10 - SNAP + * 11 - DIX + * If "classic mode" is selected, the adapter will attempt to + * decode the frame's Ethernet encapsulation by examining the L/T + * field as follows: + * <= 0x05DC LLC/SNAP encoding; must examine DSAP/SSAP to determine + * if packet is IPv4 or IPv6. + * 0x8870 Jumbo-SNAP encoding. + * 0x0800 IPv4 DIX encoding + * 0x86DD IPv6 DIX encoding + * others illegal encapsulation + * Bits 30 - LSO_ Flag. Large Send Offload (LSO) flag. + * Set to 1 to perform segmentation offload for TCP/UDP. + * This field is valid only in TxD0. + * Bits 31 to 33 - Reserved. + * Bits 34 to 47 - LSO_MSS. TCP/UDP LSO Maximum Segment Size + * This field is meaningful only when LSO_Control is non-zero. + * When LSO_Control is set to TCP_LSO, the single (possibly large) + * TCP segment described by this TxDL will be sent as a series of + * TCP segments each of which contains no more than LSO_MSS + * payload bytes. + * When LSO_Control is set to UDP_LSO, the single (possibly large) + * UDP datagram described by this TxDL will be sent as a series of + * UDP datagrams each of which contains no more than LSO_MSS + * payload bytes. + * All outgoing frames from this TxDL will have LSO_MSS bytes of UDP + * or TCP payload, with the exception of the last, which will have + * <= LSO_MSS bytes of payload. + * Bits 48 to 63 - Buffer_Size. Number of valid bytes in the + * buffer to be read by the adapter. This field is written by the + * host. A value of 0 is illegal. + * Bits 32 to 63 - This value is written by the adapter upon + * completion of a UDP or TCP LSO operation and indicates the number + * of UDP or TCP payload bytes that were transmitted. 0x0000 will be + * returned for any non-LSO operation. + * @control_1: Bits 0 to 4 - Reserved. + * Bit 5 - Tx_CKO_IPv4 Set to a '1' to enable IPv4 header checksum + * offload. This field is only valid in the first TxD of a frame. + * Bit 6 - Tx_CKO_TCP Set to a '1' to enable TCP checksum offload. + * This field is only valid in the first TxD of a frame (the TxD's + * gather code must be 10 or 11). The driver should only set this + * bit if it can guarantee that TCP is present. + * Bit 7 - Tx_CKO_UDP Set to a '1' to enable UDP checksum offload. + * This field is only valid in the first TxD of a frame (the TxD's + * gather code must be 10 or 11). The driver should only set this + * bit if it can guarantee that UDP is present. + * Bits 8 to 14 - Reserved. + * Bit 15 - Tx_VLAN_Enable VLAN tag insertion flag. Set to a '1' to + * instruct the adapter to insert the VLAN tag specified by the + * Tx_VLAN_Tag field. This field is only valid in the first TxD of + * a frame. + * Bits 16 to 31 - Tx_VLAN_Tag. Variable portion of the VLAN tag + * to be inserted into the frame by the adapter (the first two bytes + * of a VLAN tag are always 0x8100). This field is only valid if the + * Tx_VLAN_Enable field is set to '1'. + * Bits 32 to 33 - Reserved. + * Bits 34 to 39 - Tx_Int_Number. Indicates which Tx interrupt + * number the frame associated with. This field is written by the + * host. It is only valid in the first TxD of a frame. + * Bits 40 to 42 - Reserved. + * Bit 43 - Set to 1 to exclude the frame from bandwidth metering + * functions. This field is valid only in the first TxD + * of a frame. + * Bits 44 to 45 - Reserved. + * Bit 46 - Tx_Int_Per_List Set to a '1' to instruct the adapter to + * generate an interrupt as soon as all of the frames in the list + * have been transmitted. In order to have per-frame interrupts, + * the driver should place a maximum of one frame per list. This + * field is only valid in the first TxD of a frame. + * Bit 47 - Tx_Int_Utilization Set to a '1' to instruct the adapter + * to count the frame toward the utilization interrupt specified in + * the Tx_Int_Number field. This field is only valid in the first + * TxD of a frame. + * Bits 48 to 63 - Reserved. + * @buffer_pointer: Buffer start address. + * @host_control: Host_Control.Opaque 64bit data stored by driver inside the + * Titan descriptor prior to posting the latter on the fifo + * via vxge_hw_fifo_txdl_post().The %host_control is returned as is + * to the driver with each completed descriptor. + * + * Transmit descriptor (TxD).Fifo descriptor contains configured number + * (list) of TxDs. * For more details please refer to Titan User Guide, + * Section 5.4.2 "Transmit Descriptor (TxD) Format". + */ +struct vxge_hw_fifo_txd { + u64 control_0; +#define VXGE_HW_FIFO_TXD_LIST_OWN_ADAPTER vxge_mBIT(7) + +#define VXGE_HW_FIFO_TXD_T_CODE_GET(ctrl0) vxge_bVALn(ctrl0, 12, 4) +#define VXGE_HW_FIFO_TXD_T_CODE(val) vxge_vBIT(val, 12, 4) +#define VXGE_HW_FIFO_TXD_T_CODE_UNUSED VXGE_HW_FIFO_T_CODE_UNUSED + + +#define VXGE_HW_FIFO_TXD_GATHER_CODE(val) vxge_vBIT(val, 22, 2) +#define VXGE_HW_FIFO_TXD_GATHER_CODE_FIRST VXGE_HW_FIFO_GATHER_CODE_FIRST +#define VXGE_HW_FIFO_TXD_GATHER_CODE_LAST VXGE_HW_FIFO_GATHER_CODE_LAST + + +#define VXGE_HW_FIFO_TXD_LSO_EN vxge_mBIT(30) + +#define VXGE_HW_FIFO_TXD_LSO_MSS(val) vxge_vBIT(val, 34, 14) + +#define VXGE_HW_FIFO_TXD_BUFFER_SIZE(val) vxge_vBIT(val, 48, 16) + + u64 control_1; +#define VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN vxge_mBIT(5) +#define VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN vxge_mBIT(6) +#define VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN vxge_mBIT(7) +#define VXGE_HW_FIFO_TXD_VLAN_ENABLE vxge_mBIT(15) + +#define VXGE_HW_FIFO_TXD_VLAN_TAG(val) vxge_vBIT(val, 16, 16) + +#define VXGE_HW_FIFO_TXD_INT_NUMBER(val) vxge_vBIT(val, 34, 6) + +#define VXGE_HW_FIFO_TXD_INT_TYPE_PER_LIST vxge_mBIT(46) +#define VXGE_HW_FIFO_TXD_INT_TYPE_UTILZ vxge_mBIT(47) + + u64 buffer_pointer; + + u64 host_control; +}; + +/** + * struct vxge_hw_ring_rxd_1 - One buffer mode RxD for ring + * @host_control: This field is exclusively for host use and is "readonly" + * from the adapter's perspective. + * @control_0:Bits 0 to 6 - RTH_Bucket get + * Bit 7 - Own Descriptor ownership bit. This bit is set to 1 + * by the host, and is set to 0 by the adapter. + * 0 - Host owns RxD and buffer. + * 1 - The adapter owns RxD and buffer. + * Bit 8 - Fast_Path_Eligible When set, indicates that the + * received frame meets all of the criteria for fast path processing. + * The required criteria are as follows: + * !SYN & + * (Transfer_Code == "Transfer OK") & + * (!Is_IP_Fragment) & + * ((Is_IPv4 & computed_L3_checksum == 0xFFFF) | + * (Is_IPv6)) & + * ((Is_TCP & computed_L4_checksum == 0xFFFF) | + * (Is_UDP & (computed_L4_checksum == 0xFFFF | + * computed _L4_checksum == 0x0000))) + * (same meaning for all RxD buffer modes) + * Bit 9 - L3 Checksum Correct + * Bit 10 - L4 Checksum Correct + * Bit 11 - Reserved + * Bit 12 to 15 - This field is written by the adapter. It is + * used to report the status of the frame transfer to the host. + * 0x0 - Transfer OK + * 0x4 - RDA Failure During Transfer + * 0x5 - Unparseable Packet, such as unknown IPv6 header. + * 0x6 - Frame integrity error (FCS or ECC). + * 0x7 - Buffer Size Error. The provided buffer(s) were not + * appropriately sized and data loss occurred. + * 0x8 - Internal ECC Error. RxD corrupted. + * 0x9 - IPv4 Checksum error + * 0xA - TCP/UDP Checksum error + * 0xF - Unknown Error or Multiple Error. Indicates an + * unknown problem or that more than one of transfer codes is set. + * Bit 16 - SYN The adapter sets this field to indicate that + * the incoming frame contained a TCP segment with its SYN bit + * set and its ACK bit NOT set. (same meaning for all RxD buffer + * modes) + * Bit 17 - Is ICMP + * Bit 18 - RTH_SPDM_HIT Set to 1 if there was a match in the + * Socket Pair Direct Match Table and the frame was steered based + * on SPDM. + * Bit 19 - RTH_IT_HIT Set to 1 if there was a match in the + * Indirection Table and the frame was steered based on hash + * indirection. + * Bit 20 to 23 - RTH_HASH_TYPE Indicates the function (hash + * type) that was used to calculate the hash. + * Bit 19 - IS_VLAN Set to '1' if the frame was/is VLAN + * tagged. + * Bit 25 to 26 - ETHER_ENCAP Reflects the Ethernet encapsulation + * of the received frame. + * 0x0 - Ethernet DIX + * 0x1 - LLC + * 0x2 - SNAP (includes Jumbo-SNAP) + * 0x3 - IPX + * Bit 27 - IS_IPV4 Set to '1' if the frame contains an IPv4 packet. + * Bit 28 - IS_IPV6 Set to '1' if the frame contains an IPv6 packet. + * Bit 29 - IS_IP_FRAG Set to '1' if the frame contains a fragmented + * IP packet. + * Bit 30 - IS_TCP Set to '1' if the frame contains a TCP segment. + * Bit 31 - IS_UDP Set to '1' if the frame contains a UDP message. + * Bit 32 to 47 - L3_Checksum[0:15] The IPv4 checksum value that + * arrived with the frame. If the resulting computed IPv4 header + * checksum for the frame did not produce the expected 0xFFFF value, + * then the transfer code would be set to 0x9. + * Bit 48 to 63 - L4_Checksum[0:15] The TCP/UDP checksum value that + * arrived with the frame. If the resulting computed TCP/UDP checksum + * for the frame did not produce the expected 0xFFFF value, then the + * transfer code would be set to 0xA. + * @control_1:Bits 0 to 1 - Reserved + * Bits 2 to 15 - Buffer0_Size.This field is set by the host and + * eventually overwritten by the adapter. The host writes the + * available buffer size in bytes when it passes the descriptor to + * the adapter. When a frame is delivered the host, the adapter + * populates this field with the number of bytes written into the + * buffer. The largest supported buffer is 16, 383 bytes. + * Bit 16 to 47 - RTH Hash Value 32-bit RTH hash value. Only valid if + * RTH_HASH_TYPE (Control_0, bits 20:23) is nonzero. + * Bit 48 to 63 - VLAN_Tag[0:15] The contents of the variable portion + * of the VLAN tag, if one was detected by the adapter. This field is + * populated even if VLAN-tag stripping is enabled. + * @buffer0_ptr: Pointer to buffer. This field is populated by the driver. + * + * One buffer mode RxD for ring structure + */ +struct vxge_hw_ring_rxd_1 { + u64 host_control; + u64 control_0; +#define VXGE_HW_RING_RXD_RTH_BUCKET_GET(ctrl0) vxge_bVALn(ctrl0, 0, 7) + +#define VXGE_HW_RING_RXD_LIST_OWN_ADAPTER vxge_mBIT(7) + +#define VXGE_HW_RING_RXD_FAST_PATH_ELIGIBLE_GET(ctrl0) vxge_bVALn(ctrl0, 8, 1) + +#define VXGE_HW_RING_RXD_L3_CKSUM_CORRECT_GET(ctrl0) vxge_bVALn(ctrl0, 9, 1) + +#define VXGE_HW_RING_RXD_L4_CKSUM_CORRECT_GET(ctrl0) vxge_bVALn(ctrl0, 10, 1) + +#define VXGE_HW_RING_RXD_T_CODE_GET(ctrl0) vxge_bVALn(ctrl0, 12, 4) +#define VXGE_HW_RING_RXD_T_CODE(val) vxge_vBIT(val, 12, 4) + +#define VXGE_HW_RING_RXD_T_CODE_UNUSED VXGE_HW_RING_T_CODE_UNUSED + +#define VXGE_HW_RING_RXD_SYN_GET(ctrl0) vxge_bVALn(ctrl0, 16, 1) + +#define VXGE_HW_RING_RXD_IS_ICMP_GET(ctrl0) vxge_bVALn(ctrl0, 17, 1) + +#define VXGE_HW_RING_RXD_RTH_SPDM_HIT_GET(ctrl0) vxge_bVALn(ctrl0, 18, 1) + +#define VXGE_HW_RING_RXD_RTH_IT_HIT_GET(ctrl0) vxge_bVALn(ctrl0, 19, 1) + +#define VXGE_HW_RING_RXD_RTH_HASH_TYPE_GET(ctrl0) vxge_bVALn(ctrl0, 20, 4) + +#define VXGE_HW_RING_RXD_IS_VLAN_GET(ctrl0) vxge_bVALn(ctrl0, 24, 1) + +#define VXGE_HW_RING_RXD_ETHER_ENCAP_GET(ctrl0) vxge_bVALn(ctrl0, 25, 2) + +#define VXGE_HW_RING_RXD_FRAME_PROTO_GET(ctrl0) vxge_bVALn(ctrl0, 27, 5) + +#define VXGE_HW_RING_RXD_L3_CKSUM_GET(ctrl0) vxge_bVALn(ctrl0, 32, 16) + +#define VXGE_HW_RING_RXD_L4_CKSUM_GET(ctrl0) vxge_bVALn(ctrl0, 48, 16) + + u64 control_1; + +#define VXGE_HW_RING_RXD_1_BUFFER0_SIZE_GET(ctrl1) vxge_bVALn(ctrl1, 2, 14) +#define VXGE_HW_RING_RXD_1_BUFFER0_SIZE(val) vxge_vBIT(val, 2, 14) +#define VXGE_HW_RING_RXD_1_BUFFER0_SIZE_MASK vxge_vBIT(0x3FFF, 2, 14) + +#define VXGE_HW_RING_RXD_1_RTH_HASH_VAL_GET(ctrl1) vxge_bVALn(ctrl1, 16, 32) + +#define VXGE_HW_RING_RXD_VLAN_TAG_GET(ctrl1) vxge_bVALn(ctrl1, 48, 16) + + u64 buffer0_ptr; +}; + +enum vxge_hw_rth_algoritms { + RTH_ALG_JENKINS = 0, + RTH_ALG_MS_RSS = 1, + RTH_ALG_CRC32C = 2 +}; + +/** + * struct vxge_hw_rth_hash_types - RTH hash types. + * @hash_type_tcpipv4_en: Enables RTH field type HashTypeTcpIPv4 + * @hash_type_ipv4_en: Enables RTH field type HashTypeIPv4 + * @hash_type_tcpipv6_en: Enables RTH field type HashTypeTcpIPv6 + * @hash_type_ipv6_en: Enables RTH field type HashTypeIPv6 + * @hash_type_tcpipv6ex_en: Enables RTH field type HashTypeTcpIPv6Ex + * @hash_type_ipv6ex_en: Enables RTH field type HashTypeIPv6Ex + * + * Used to pass RTH hash types to rts_rts_set. + * + * See also: vxge_hw_vpath_rts_rth_set(), vxge_hw_vpath_rts_rth_get(). + */ +struct vxge_hw_rth_hash_types { + u8 hash_type_tcpipv4_en; + u8 hash_type_ipv4_en; + u8 hash_type_tcpipv6_en; + u8 hash_type_ipv6_en; + u8 hash_type_tcpipv6ex_en; + u8 hash_type_ipv6ex_en; +}; + +u32 +vxge_hw_device_debug_mask_get(struct __vxge_hw_device *devh); + +void vxge_hw_device_debug_set( + struct __vxge_hw_device *devh, + enum vxge_debug_level level, + u32 mask); + +u32 +vxge_hw_device_error_level_get(struct __vxge_hw_device *devh); + +u32 +vxge_hw_device_trace_level_get(struct __vxge_hw_device *devh); + +u32 +vxge_hw_device_debug_mask_get(struct __vxge_hw_device *devh); + +/** + * vxge_hw_ring_rxd_size_get - Get the size of ring descriptor. + * @buf_mode: Buffer mode (1, 3 or 5) + * + * This function returns the size of RxD for given buffer mode + */ +static inline u32 vxge_hw_ring_rxd_size_get(u32 buf_mode) +{ + return sizeof(struct vxge_hw_ring_rxd_1); +} + +/** + * vxge_hw_ring_rxds_per_block_get - Get the number of rxds per block. + * @buf_mode: Buffer mode (1 buffer mode only) + * + * This function returns the number of RxD for RxD block for given buffer mode + */ +static inline u32 vxge_hw_ring_rxds_per_block_get(u32 buf_mode) +{ + return (u32)((VXGE_HW_BLOCK_SIZE-16) / + sizeof(struct vxge_hw_ring_rxd_1)); +} + +/** + * vxge_hw_ring_rxd_1b_set - Prepare 1-buffer-mode descriptor. + * @rxdh: Descriptor handle. + * @dma_pointer: DMA address of a single receive buffer this descriptor + * should carry. Note that by the time vxge_hw_ring_rxd_1b_set is called, + * the receive buffer should be already mapped to the device + * @size: Size of the receive @dma_pointer buffer. + * + * Prepare 1-buffer-mode Rx descriptor for posting + * (via vxge_hw_ring_rxd_post()). + * + * This inline helper-function does not return any parameters and always + * succeeds. + * + */ +static inline +void vxge_hw_ring_rxd_1b_set( + void *rxdh, + dma_addr_t dma_pointer, + u32 size) +{ + struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; + rxdp->buffer0_ptr = dma_pointer; + rxdp->control_1 &= ~VXGE_HW_RING_RXD_1_BUFFER0_SIZE_MASK; + rxdp->control_1 |= VXGE_HW_RING_RXD_1_BUFFER0_SIZE(size); +} + +/** + * vxge_hw_ring_rxd_1b_get - Get data from the completed 1-buf + * descriptor. + * @vpath_handle: Virtual Path handle. + * @rxdh: Descriptor handle. + * @dma_pointer: DMA address of a single receive buffer this descriptor + * carries. Returned by HW. + * @pkt_length: Length (in bytes) of the data in the buffer pointed by + * + * Retrieve protocol data from the completed 1-buffer-mode Rx descriptor. + * This inline helper-function uses completed descriptor to populate receive + * buffer pointer and other "out" parameters. The function always succeeds. + * + */ +static inline +void vxge_hw_ring_rxd_1b_get( + struct __vxge_hw_ring *ring_handle, + void *rxdh, + u32 *pkt_length) +{ + struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; + + *pkt_length = + (u32)VXGE_HW_RING_RXD_1_BUFFER0_SIZE_GET(rxdp->control_1); +} + +/** + * vxge_hw_ring_rxd_1b_info_get - Get extended information associated with + * a completed receive descriptor for 1b mode. + * @vpath_handle: Virtual Path handle. + * @rxdh: Descriptor handle. + * @rxd_info: Descriptor information + * + * Retrieve extended information associated with a completed receive descriptor. + * + */ +static inline +void vxge_hw_ring_rxd_1b_info_get( + struct __vxge_hw_ring *ring_handle, + void *rxdh, + struct vxge_hw_ring_rxd_info *rxd_info) +{ + + struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; + rxd_info->syn_flag = + (u32)VXGE_HW_RING_RXD_SYN_GET(rxdp->control_0); + rxd_info->is_icmp = + (u32)VXGE_HW_RING_RXD_IS_ICMP_GET(rxdp->control_0); + rxd_info->fast_path_eligible = + (u32)VXGE_HW_RING_RXD_FAST_PATH_ELIGIBLE_GET(rxdp->control_0); + rxd_info->l3_cksum_valid = + (u32)VXGE_HW_RING_RXD_L3_CKSUM_CORRECT_GET(rxdp->control_0); + rxd_info->l3_cksum = + (u32)VXGE_HW_RING_RXD_L3_CKSUM_GET(rxdp->control_0); + rxd_info->l4_cksum_valid = + (u32)VXGE_HW_RING_RXD_L4_CKSUM_CORRECT_GET(rxdp->control_0); + rxd_info->l4_cksum = + (u32)VXGE_HW_RING_RXD_L4_CKSUM_GET(rxdp->control_0);; + rxd_info->frame = + (u32)VXGE_HW_RING_RXD_ETHER_ENCAP_GET(rxdp->control_0); + rxd_info->proto = + (u32)VXGE_HW_RING_RXD_FRAME_PROTO_GET(rxdp->control_0); + rxd_info->is_vlan = + (u32)VXGE_HW_RING_RXD_IS_VLAN_GET(rxdp->control_0); + rxd_info->vlan = + (u32)VXGE_HW_RING_RXD_VLAN_TAG_GET(rxdp->control_1); + rxd_info->rth_bucket = + (u32)VXGE_HW_RING_RXD_RTH_BUCKET_GET(rxdp->control_0); + rxd_info->rth_it_hit = + (u32)VXGE_HW_RING_RXD_RTH_IT_HIT_GET(rxdp->control_0); + rxd_info->rth_spdm_hit = + (u32)VXGE_HW_RING_RXD_RTH_SPDM_HIT_GET(rxdp->control_0); + rxd_info->rth_hash_type = + (u32)VXGE_HW_RING_RXD_RTH_HASH_TYPE_GET(rxdp->control_0); + rxd_info->rth_value = + (u32)VXGE_HW_RING_RXD_1_RTH_HASH_VAL_GET(rxdp->control_1); +} + +/** + * vxge_hw_ring_rxd_private_get - Get driver private per-descriptor data + * of 1b mode 3b mode ring. + * @rxdh: Descriptor handle. + * + * Returns: private driver info associated with the descriptor. + * driver requests per-descriptor space via vxge_hw_ring_attr. + * + */ +static inline void *vxge_hw_ring_rxd_private_get(void *rxdh) +{ + struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; + return (void *)(size_t)rxdp->host_control; +} + +/** + * vxge_hw_fifo_txdl_cksum_set_bits - Offload checksum. + * @txdlh: Descriptor handle. + * @cksum_bits: Specifies which checksums are to be offloaded: IPv4, + * and/or TCP and/or UDP. + * + * Ask Titan to calculate IPv4 & transport checksums for _this_ transmit + * descriptor. + * This API is part of the preparation of the transmit descriptor for posting + * (via vxge_hw_fifo_txdl_post()). The related "preparation" APIs include + * vxge_hw_fifo_txdl_mss_set(), vxge_hw_fifo_txdl_buffer_set_aligned(), + * and vxge_hw_fifo_txdl_buffer_set(). + * All these APIs fill in the fields of the fifo descriptor, + * in accordance with the Titan specification. + * + */ +static inline void vxge_hw_fifo_txdl_cksum_set_bits(void *txdlh, u64 cksum_bits) +{ + struct vxge_hw_fifo_txd *txdp = (struct vxge_hw_fifo_txd *)txdlh; + txdp->control_1 |= cksum_bits; +} + +/** + * vxge_hw_fifo_txdl_mss_set - Set MSS. + * @txdlh: Descriptor handle. + * @mss: MSS size for _this_ TCP connection. Passed by TCP stack down to the + * driver, which in turn inserts the MSS into the @txdlh. + * + * This API is part of the preparation of the transmit descriptor for posting + * (via vxge_hw_fifo_txdl_post()). The related "preparation" APIs include + * vxge_hw_fifo_txdl_buffer_set(), vxge_hw_fifo_txdl_buffer_set_aligned(), + * and vxge_hw_fifo_txdl_cksum_set_bits(). + * All these APIs fill in the fields of the fifo descriptor, + * in accordance with the Titan specification. + * + */ +static inline void vxge_hw_fifo_txdl_mss_set(void *txdlh, int mss) +{ + struct vxge_hw_fifo_txd *txdp = (struct vxge_hw_fifo_txd *)txdlh; + + txdp->control_0 |= VXGE_HW_FIFO_TXD_LSO_EN; + txdp->control_0 |= VXGE_HW_FIFO_TXD_LSO_MSS(mss); +} + +/** + * vxge_hw_fifo_txdl_vlan_set - Set VLAN tag. + * @txdlh: Descriptor handle. + * @vlan_tag: 16bit VLAN tag. + * + * Insert VLAN tag into specified transmit descriptor. + * The actual insertion of the tag into outgoing frame is done by the hardware. + */ +static inline void vxge_hw_fifo_txdl_vlan_set(void *txdlh, u16 vlan_tag) +{ + struct vxge_hw_fifo_txd *txdp = (struct vxge_hw_fifo_txd *)txdlh; + + txdp->control_1 |= VXGE_HW_FIFO_TXD_VLAN_ENABLE; + txdp->control_1 |= VXGE_HW_FIFO_TXD_VLAN_TAG(vlan_tag); +} + +/** + * vxge_hw_fifo_txdl_private_get - Retrieve per-descriptor private data. + * @txdlh: Descriptor handle. + * + * Retrieve per-descriptor private data. + * Note that driver requests per-descriptor space via + * struct vxge_hw_fifo_attr passed to + * vxge_hw_vpath_open(). + * + * Returns: private driver data associated with the descriptor. + */ +static inline void *vxge_hw_fifo_txdl_private_get(void *txdlh) +{ + struct vxge_hw_fifo_txd *txdp = (struct vxge_hw_fifo_txd *)txdlh; + + return (void *)(size_t)txdp->host_control; +} + +/** + * struct vxge_hw_ring_attr - Ring open "template". + * @callback: Ring completion callback. HW invokes the callback when there + * are new completions on that ring. In many implementations + * the @callback executes in the hw interrupt context. + * @rxd_init: Ring's descriptor-initialize callback. + * See vxge_hw_ring_rxd_init_f{}. + * If not NULL, HW invokes the callback when opening + * the ring. + * @rxd_term: Ring's descriptor-terminate callback. If not NULL, + * HW invokes the callback when closing the corresponding ring. + * See also vxge_hw_ring_rxd_term_f{}. + * @userdata: User-defined "context" of _that_ ring. Passed back to the + * user as one of the @callback, @rxd_init, and @rxd_term arguments. + * @per_rxd_space: If specified (i.e., greater than zero): extra space + * reserved by HW per each receive descriptor. + * Can be used to store + * and retrieve on completion, information specific + * to the driver. + * + * Ring open "template". User fills the structure with ring + * attributes and passes it to vxge_hw_vpath_open(). + */ +struct vxge_hw_ring_attr { + enum vxge_hw_status (*callback)( + struct __vxge_hw_ring *ringh, + void *rxdh, + u8 t_code, + void *userdata); + + enum vxge_hw_status (*rxd_init)( + void *rxdh, + void *userdata); + + void (*rxd_term)( + void *rxdh, + enum vxge_hw_rxd_state state, + void *userdata); + + void *userdata; + u32 per_rxd_space; +}; + +/** + * function vxge_hw_fifo_callback_f - FIFO callback. + * @vpath_handle: Virtual path whose Fifo "containing" 1 or more completed + * descriptors. + * @txdlh: First completed descriptor. + * @txdl_priv: Pointer to per txdl space allocated + * @t_code: Transfer code, as per Titan User Guide. + * Returned by HW. + * @host_control: Opaque 64bit data stored by driver inside the Titan + * descriptor prior to posting the latter on the fifo + * via vxge_hw_fifo_txdl_post(). The @host_control is returned + * as is to the driver with each completed descriptor. + * @userdata: Opaque per-fifo data specified at fifo open + * time, via vxge_hw_vpath_open(). + * + * Fifo completion callback (type declaration). A single per-fifo + * callback is specified at fifo open time, via + * vxge_hw_vpath_open(). Typically gets called as part of the processing + * of the Interrupt Service Routine. + * + * Fifo callback gets called by HW if, and only if, there is at least + * one new completion on a given fifo. Upon processing the first @txdlh driver + * is _supposed_ to continue consuming completions using: + * - vxge_hw_fifo_txdl_next_completed() + * + * Note that failure to process new completions in a timely fashion + * leads to VXGE_HW_INF_OUT_OF_DESCRIPTORS condition. + * + * Non-zero @t_code means failure to process transmit descriptor. + * + * In the "transmit" case the failure could happen, for instance, when the + * link is down, in which case Titan completes the descriptor because it + * is not able to send the data out. + * + * For details please refer to Titan User Guide. + * + * See also: vxge_hw_fifo_txdl_next_completed(), vxge_hw_fifo_txdl_term_f{}. + */ +/** + * function vxge_hw_fifo_txdl_term_f - Terminate descriptor callback. + * @txdlh: First completed descriptor. + * @txdl_priv: Pointer to per txdl space allocated + * @state: One of the enum vxge_hw_txdl_state{} enumerated states. + * @userdata: Per-fifo user data (a.k.a. context) specified at + * fifo open time, via vxge_hw_vpath_open(). + * + * Terminate descriptor callback. Unless NULL is specified in the + * struct vxge_hw_fifo_attr{} structure passed to vxge_hw_vpath_open()), + * HW invokes the callback as part of closing fifo, prior to + * de-allocating the ring and associated data structures + * (including descriptors). + * driver should utilize the callback to (for instance) unmap + * and free DMA data buffers associated with the posted (state = + * VXGE_HW_TXDL_STATE_POSTED) descriptors, + * as well as other relevant cleanup functions. + * + * See also: struct vxge_hw_fifo_attr{} + */ +/** + * struct vxge_hw_fifo_attr - Fifo open "template". + * @callback: Fifo completion callback. HW invokes the callback when there + * are new completions on that fifo. In many implementations + * the @callback executes in the hw interrupt context. + * @txdl_term: Fifo's descriptor-terminate callback. If not NULL, + * HW invokes the callback when closing the corresponding fifo. + * See also vxge_hw_fifo_txdl_term_f{}. + * @userdata: User-defined "context" of _that_ fifo. Passed back to the + * user as one of the @callback, and @txdl_term arguments. + * @per_txdl_space: If specified (i.e., greater than zero): extra space + * reserved by HW per each transmit descriptor. Can be used to + * store, and retrieve on completion, information specific + * to the driver. + * + * Fifo open "template". User fills the structure with fifo + * attributes and passes it to vxge_hw_vpath_open(). + */ +struct vxge_hw_fifo_attr { + + enum vxge_hw_status (*callback)( + struct __vxge_hw_fifo *fifo_handle, + void *txdlh, + enum vxge_hw_fifo_tcode t_code, + void *userdata, + void **skb_ptr); + + void (*txdl_term)( + void *txdlh, + enum vxge_hw_txdl_state state, + void *userdata); + + void *userdata; + u32 per_txdl_space; +}; + +/** + * struct vxge_hw_vpath_attr - Attributes of virtual path + * @vp_id: Identifier of Virtual Path + * @ring_attr: Attributes of ring for non-offload receive + * @fifo_attr: Attributes of fifo for non-offload transmit + * + * Attributes of virtual path. This structure is passed as parameter + * to the vxge_hw_vpath_open() routine to set the attributes of ring and fifo. + */ +struct vxge_hw_vpath_attr { + u32 vp_id; + struct vxge_hw_ring_attr ring_attr; + struct vxge_hw_fifo_attr fifo_attr; +}; + +enum vxge_hw_status +__vxge_hw_blockpool_create(struct __vxge_hw_device *hldev, + struct __vxge_hw_blockpool *blockpool, + u32 pool_size, + u32 pool_max); + +void +__vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool *blockpool); + +struct __vxge_hw_blockpool_entry * +__vxge_hw_blockpool_block_allocate(struct __vxge_hw_device *hldev, + u32 size); + +void +__vxge_hw_blockpool_block_free(struct __vxge_hw_device *hldev, + struct __vxge_hw_blockpool_entry *entry); + +void * +__vxge_hw_blockpool_malloc(struct __vxge_hw_device *hldev, + u32 size, + struct vxge_hw_mempool_dma *dma_object); + +void +__vxge_hw_blockpool_free(struct __vxge_hw_device *hldev, + void *memblock, + u32 size, + struct vxge_hw_mempool_dma *dma_object); + +enum vxge_hw_status +__vxge_hw_device_fifo_config_check(struct vxge_hw_fifo_config *fifo_config); + +enum vxge_hw_status +__vxge_hw_device_config_check(struct vxge_hw_device_config *new_config); + +enum vxge_hw_status +vxge_hw_mgmt_device_config(struct __vxge_hw_device *devh, + struct vxge_hw_device_config *dev_config, int size); + +enum vxge_hw_status __devinit vxge_hw_device_hw_info_get( + void __iomem *bar0, + struct vxge_hw_device_hw_info *hw_info); + +enum vxge_hw_status +__vxge_hw_vpath_fw_ver_get( + u32 vp_id, + struct vxge_hw_vpath_reg __iomem *vpath_reg, + struct vxge_hw_device_hw_info *hw_info); + +enum vxge_hw_status +__vxge_hw_vpath_card_info_get( + u32 vp_id, + struct vxge_hw_vpath_reg __iomem *vpath_reg, + struct vxge_hw_device_hw_info *hw_info); + +enum vxge_hw_status __devinit vxge_hw_device_config_default_get( + struct vxge_hw_device_config *device_config); + +/** + * vxge_hw_device_link_state_get - Get link state. + * @devh: HW device handle. + * + * Get link state. + * Returns: link state. + */ +static inline +enum vxge_hw_device_link_state vxge_hw_device_link_state_get( + struct __vxge_hw_device *devh) +{ + return devh->link_state; +} + +void vxge_hw_device_terminate(struct __vxge_hw_device *devh); + +const u8 * +vxge_hw_device_serial_number_get(struct __vxge_hw_device *devh); + +u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *devh); + +const u8 * +vxge_hw_device_product_name_get(struct __vxge_hw_device *devh); + +enum vxge_hw_status __devinit vxge_hw_device_initialize( + struct __vxge_hw_device **devh, + struct vxge_hw_device_attr *attr, + struct vxge_hw_device_config *device_config); + +enum vxge_hw_status vxge_hw_device_getpause_data( + struct __vxge_hw_device *devh, + u32 port, + u32 *tx, + u32 *rx); + +enum vxge_hw_status vxge_hw_device_setpause_data( + struct __vxge_hw_device *devh, + u32 port, + u32 tx, + u32 rx); + +static inline void *vxge_os_dma_malloc(struct pci_dev *pdev, + unsigned long size, + struct pci_dev **p_dmah, + struct pci_dev **p_dma_acch) +{ + gfp_t flags; + void *vaddr; + unsigned long misaligned = 0; + *p_dma_acch = *p_dmah = NULL; + + if (in_interrupt()) + flags = GFP_ATOMIC | GFP_DMA; + else + flags = GFP_KERNEL | GFP_DMA; + + size += VXGE_CACHE_LINE_SIZE; + + vaddr = kmalloc((size), flags); + if (vaddr == NULL) + return vaddr; + misaligned = (unsigned long)VXGE_ALIGN(*((u64 *)&vaddr), + VXGE_CACHE_LINE_SIZE); + *(unsigned long *)p_dma_acch = misaligned; + vaddr = (void *)((u8 *)vaddr + misaligned); + return vaddr; +} + +extern void vxge_hw_blockpool_block_add( + struct __vxge_hw_device *devh, + void *block_addr, + u32 length, + struct pci_dev *dma_h, + struct pci_dev *acc_handle); + +static inline void vxge_os_dma_malloc_async(struct pci_dev *pdev, void *devh, + unsigned long size) +{ + gfp_t flags; + void *vaddr; + + if (in_interrupt()) + flags = GFP_ATOMIC | GFP_DMA; + else + flags = GFP_KERNEL | GFP_DMA; + + vaddr = kmalloc((size), flags); + + vxge_hw_blockpool_block_add(devh, vaddr, size, pdev, pdev); +} + +static inline void vxge_os_dma_free(struct pci_dev *pdev, const void *vaddr, + struct pci_dev **p_dma_acch) +{ + unsigned long misaligned = *(unsigned long *)p_dma_acch; + u8 *tmp = (u8 *)vaddr; + tmp -= misaligned; + kfree((void *)tmp); +} + +/* + * __vxge_hw_mempool_item_priv - will return pointer on per item private space + */ +static inline void* +__vxge_hw_mempool_item_priv( + struct vxge_hw_mempool *mempool, + u32 memblock_idx, + void *item, + u32 *memblock_item_idx) +{ + ptrdiff_t offset; + void *memblock = mempool->memblocks_arr[memblock_idx]; + + + offset = (u32)((u8 *)item - (u8 *)memblock); + vxge_assert(offset >= 0 && (u32)offset < mempool->memblock_size); + + (*memblock_item_idx) = (u32) offset / mempool->item_size; + vxge_assert((*memblock_item_idx) < mempool->items_per_memblock); + + return (u8 *)mempool->memblocks_priv_arr[memblock_idx] + + (*memblock_item_idx) * mempool->items_priv_size; +} + +enum vxge_hw_status +__vxge_hw_mempool_grow( + struct vxge_hw_mempool *mempool, + u32 num_allocate, + u32 *num_allocated); + +struct vxge_hw_mempool* +__vxge_hw_mempool_create( + struct __vxge_hw_device *devh, + u32 memblock_size, + u32 item_size, + u32 private_size, + u32 items_initial, + u32 items_max, + struct vxge_hw_mempool_cbs *mp_callback, + void *userdata); + +struct __vxge_hw_channel* +__vxge_hw_channel_allocate(struct __vxge_hw_vpath_handle *vph, + enum __vxge_hw_channel_type type, u32 length, + u32 per_dtr_space, void *userdata); + +void +__vxge_hw_channel_free( + struct __vxge_hw_channel *channel); + +enum vxge_hw_status +__vxge_hw_channel_initialize( + struct __vxge_hw_channel *channel); + +enum vxge_hw_status +__vxge_hw_channel_reset( + struct __vxge_hw_channel *channel); + +/* + * __vxge_hw_fifo_txdl_priv - Return the max fragments allocated + * for the fifo. + * @fifo: Fifo + * @txdp: Poniter to a TxD + */ +static inline struct __vxge_hw_fifo_txdl_priv * +__vxge_hw_fifo_txdl_priv( + struct __vxge_hw_fifo *fifo, + struct vxge_hw_fifo_txd *txdp) +{ + return (struct __vxge_hw_fifo_txdl_priv *) + (((char *)((ulong)txdp->host_control)) + + fifo->per_txdl_space); +} + +enum vxge_hw_status vxge_hw_vpath_open( + struct __vxge_hw_device *devh, + struct vxge_hw_vpath_attr *attr, + struct __vxge_hw_vpath_handle **vpath_handle); + +enum vxge_hw_status +__vxge_hw_device_vpath_reset_in_prog_check(u64 __iomem *vpath_rst_in_prog); + +enum vxge_hw_status vxge_hw_vpath_close( + struct __vxge_hw_vpath_handle *vpath_handle); + +enum vxge_hw_status +vxge_hw_vpath_reset( + struct __vxge_hw_vpath_handle *vpath_handle); + +enum vxge_hw_status +vxge_hw_vpath_recover_from_reset( + struct __vxge_hw_vpath_handle *vpath_handle); + +void +vxge_hw_vpath_enable(struct __vxge_hw_vpath_handle *vp); + +enum vxge_hw_status +vxge_hw_vpath_check_leak(struct __vxge_hw_ring *ringh); + +enum vxge_hw_status vxge_hw_vpath_mtu_set( + struct __vxge_hw_vpath_handle *vpath_handle, + u32 new_mtu); + +enum vxge_hw_status vxge_hw_vpath_stats_enable( + struct __vxge_hw_vpath_handle *vpath_handle); + +enum vxge_hw_status +__vxge_hw_vpath_stats_access( + struct __vxge_hw_virtualpath *vpath, + u32 operation, + u32 offset, + u64 *stat); + +enum vxge_hw_status +__vxge_hw_vpath_xmac_tx_stats_get( + struct __vxge_hw_virtualpath *vpath, + struct vxge_hw_xmac_vpath_tx_stats *vpath_tx_stats); + +enum vxge_hw_status +__vxge_hw_vpath_xmac_rx_stats_get( + struct __vxge_hw_virtualpath *vpath, + struct vxge_hw_xmac_vpath_rx_stats *vpath_rx_stats); + +enum vxge_hw_status +__vxge_hw_vpath_stats_get( + struct __vxge_hw_virtualpath *vpath, + struct vxge_hw_vpath_stats_hw_info *hw_stats); + +void +vxge_hw_vpath_rx_doorbell_init(struct __vxge_hw_vpath_handle *vp); + +enum vxge_hw_status +__vxge_hw_device_vpath_config_check(struct vxge_hw_vp_config *vp_config); + +void +__vxge_hw_device_pci_e_init(struct __vxge_hw_device *hldev); + +enum vxge_hw_status +__vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg); + +enum vxge_hw_status +__vxge_hw_vpath_swapper_set(struct vxge_hw_vpath_reg __iomem *vpath_reg); + +enum vxge_hw_status +__vxge_hw_kdfc_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg, + struct vxge_hw_vpath_reg __iomem *vpath_reg); + +enum vxge_hw_status +__vxge_hw_device_register_poll( + void __iomem *reg, + u64 mask, u32 max_millis); + +#ifndef readq +static inline u64 readq(void __iomem *addr) +{ + u64 ret = 0; + ret = readl(addr + 4); + ret <<= 32; + ret |= readl(addr); + + return ret; +} +#endif + +#ifndef writeq +static inline void writeq(u64 val, void __iomem *addr) +{ + writel((u32) (val), addr); + writel((u32) (val >> 32), (addr + 4)); +} +#endif + +static inline void __vxge_hw_pio_mem_write32_upper(u32 val, void __iomem *addr) +{ + writel(val, addr + 4); +} + +static inline void __vxge_hw_pio_mem_write32_lower(u32 val, void __iomem *addr) +{ + writel(val, addr); +} + +static inline enum vxge_hw_status +__vxge_hw_pio_mem_write64(u64 val64, void __iomem *addr, + u64 mask, u32 max_millis) +{ + enum vxge_hw_status status = VXGE_HW_OK; + + __vxge_hw_pio_mem_write32_lower((u32)vxge_bVALn(val64, 32, 32), addr); + wmb(); + __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), addr); + wmb(); + + status = __vxge_hw_device_register_poll(addr, mask, max_millis); + return status; +} + +struct vxge_hw_toc_reg __iomem * +__vxge_hw_device_toc_get(void __iomem *bar0); + +enum vxge_hw_status +__vxge_hw_device_reg_addr_get(struct __vxge_hw_device *hldev); + +void +__vxge_hw_device_id_get(struct __vxge_hw_device *hldev); + +void +__vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev); + +enum vxge_hw_status +vxge_hw_device_flick_link_led(struct __vxge_hw_device *devh, u64 on_off); + +enum vxge_hw_status +__vxge_hw_device_initialize(struct __vxge_hw_device *hldev); + +enum vxge_hw_status +__vxge_hw_vpath_pci_read( + struct __vxge_hw_virtualpath *vpath, + u32 phy_func_0, + u32 offset, + u32 *val); + +enum vxge_hw_status +__vxge_hw_vpath_addr_get( + u32 vp_id, + struct vxge_hw_vpath_reg __iomem *vpath_reg, + u8 (macaddr)[ETH_ALEN], + u8 (macaddr_mask)[ETH_ALEN]); + +u32 +__vxge_hw_vpath_func_id_get( + u32 vp_id, struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg); + +enum vxge_hw_status +__vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath *vpath); + +/** + * vxge_debug + * @level: level of debug verbosity. + * @mask: mask for the debug + * @buf: Circular buffer for tracing + * @fmt: printf like format string + * + * Provides logging facilities. Can be customized on per-module + * basis or/and with debug levels. Input parameters, except + * module and level, are the same as posix printf. This function + * may be compiled out if DEBUG macro was never defined. + * See also: enum vxge_debug_level{}. + */ + +#define vxge_trace_aux(level, mask, fmt, ...) \ +{\ + vxge_os_vaprintf(level, mask, fmt, __VA_ARGS__);\ +} + +#define vxge_debug(module, level, mask, fmt, ...) { \ +if ((level >= VXGE_TRACE && ((module & VXGE_DEBUG_TRACE_MASK) == module)) || \ + (level >= VXGE_ERR && ((module & VXGE_DEBUG_ERR_MASK) == module))) {\ + if ((mask & VXGE_DEBUG_MASK) == mask)\ + vxge_trace_aux(level, mask, fmt, __VA_ARGS__); \ +} \ +} + +#if (VXGE_COMPONENT_LL & VXGE_DEBUG_MODULE_MASK) +#define vxge_debug_ll(level, mask, fmt, ...) \ +{\ + vxge_debug(VXGE_COMPONENT_LL, level, mask, fmt, __VA_ARGS__);\ +} + +#else +#define vxge_debug_ll(level, mask, fmt, ...) +#endif + +enum vxge_hw_status vxge_hw_vpath_rts_rth_itable_set( + struct __vxge_hw_vpath_handle **vpath_handles, + u32 vpath_count, + u8 *mtable, + u8 *itable, + u32 itable_size); + +enum vxge_hw_status vxge_hw_vpath_rts_rth_set( + struct __vxge_hw_vpath_handle *vpath_handle, + enum vxge_hw_rth_algoritms algorithm, + struct vxge_hw_rth_hash_types *hash_type, + u16 bucket_size); + +#endif |