diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/octeon/ethernet-defines.h | 10 | ||||
| -rw-r--r-- | drivers/staging/octeon/ethernet-mem.c | 81 | ||||
| -rw-r--r-- | drivers/staging/octeon/ethernet-rx.c | 77 | ||||
| -rw-r--r-- | drivers/staging/octeon/ethernet-tx.c | 99 | ||||
| -rw-r--r-- | drivers/staging/octeon/ethernet.c | 31 | ||||
| -rw-r--r-- | drivers/staging/octeon/octeon-ethernet.h | 41 |
6 files changed, 55 insertions, 284 deletions
diff --git a/drivers/staging/octeon/ethernet-defines.h b/drivers/staging/octeon/ethernet-defines.h index f13131b03c3..6b8065f594b 100644 --- a/drivers/staging/octeon/ethernet-defines.h +++ b/drivers/staging/octeon/ethernet-defines.h @@ -41,9 +41,6 @@ * Tells the driver to populate the packet buffers with kernel skbuffs. * This allows the driver to receive packets without copying them. It also * means that 32bit userspace can't access the packet buffers. - * USE_32BIT_SHARED - * This define tells the driver to allocate memory for buffers from the - * 32bit sahred region instead of the kernel memory space. * USE_HW_TCPUDP_CHECKSUM * Controls if the Octeon TCP/UDP checksum engine is used for packet * output. If this is zero, the kernel will perform the checksum in @@ -75,19 +72,12 @@ #define CONFIG_CAVIUM_RESERVE32 0 #endif -#if CONFIG_CAVIUM_RESERVE32 -#define USE_32BIT_SHARED 1 -#define USE_SKBUFFS_IN_HW 0 -#define REUSE_SKBUFFS_WITHOUT_FREE 0 -#else -#define USE_32BIT_SHARED 0 #define USE_SKBUFFS_IN_HW 1 #ifdef CONFIG_NETFILTER #define REUSE_SKBUFFS_WITHOUT_FREE 0 #else #define REUSE_SKBUFFS_WITHOUT_FREE 1 #endif -#endif /* Max interrupts per second per core */ #define INTERRUPT_LIMIT 10000 diff --git a/drivers/staging/octeon/ethernet-mem.c b/drivers/staging/octeon/ethernet-mem.c index b595903e2af..7090521471b 100644 --- a/drivers/staging/octeon/ethernet-mem.c +++ b/drivers/staging/octeon/ethernet-mem.c @@ -26,8 +26,6 @@ **********************************************************************/ #include <linux/kernel.h> #include <linux/netdevice.h> -#include <linux/mii.h> -#include <net/dst.h> #include <asm/octeon/octeon.h> @@ -107,42 +105,17 @@ static int cvm_oct_fill_hw_memory(int pool, int size, int elements) char *memory; int freed = elements; - if (USE_32BIT_SHARED) { - extern uint64_t octeon_reserve32_memory; - - memory = - cvmx_bootmem_alloc_range(elements * size, 128, - octeon_reserve32_memory, - octeon_reserve32_memory + - (CONFIG_CAVIUM_RESERVE32 << 20) - - 1); - if (memory == NULL) - panic("Unable to allocate %u bytes for FPA pool %d\n", - elements * size, pool); - - pr_notice("Memory range %p - %p reserved for " - "hardware\n", memory, - memory + elements * size - 1); - - while (freed) { - cvmx_fpa_free(memory, pool, 0); - memory += size; - freed--; - } - } else { - while (freed) { - /* We need to force alignment to 128 bytes here */ - memory = kmalloc(size + 127, GFP_ATOMIC); - if (unlikely(memory == NULL)) { - pr_warning("Unable to allocate %u bytes for " - "FPA pool %d\n", - elements * size, pool); - break; - } - memory = (char *)(((unsigned long)memory + 127) & -128); - cvmx_fpa_free(memory, pool, 0); - freed--; + while (freed) { + /* We need to force alignment to 128 bytes here */ + memory = kmalloc(size + 127, GFP_ATOMIC); + if (unlikely(memory == NULL)) { + pr_warning("Unable to allocate %u bytes for FPA pool %d\n", + elements * size, pool); + break; } + memory = (char *)(((unsigned long)memory + 127) & -128); + cvmx_fpa_free(memory, pool, 0); + freed--; } return elements - freed; } @@ -156,27 +129,21 @@ static int cvm_oct_fill_hw_memory(int pool, int size, int elements) */ static void cvm_oct_free_hw_memory(int pool, int size, int elements) { - if (USE_32BIT_SHARED) { - pr_warning("Warning: 32 shared memory is not freeable\n"); - } else { - char *memory; - do { - memory = cvmx_fpa_alloc(pool); - if (memory) { - elements--; - kfree(phys_to_virt(cvmx_ptr_to_phys(memory))); - } - } while (memory); + char *memory; + do { + memory = cvmx_fpa_alloc(pool); + if (memory) { + elements--; + kfree(phys_to_virt(cvmx_ptr_to_phys(memory))); + } + } while (memory); - if (elements < 0) - pr_warning("Freeing of pool %u had too many " - "buffers (%d)\n", - pool, elements); - else if (elements > 0) - pr_warning("Warning: Freeing of pool %u is " - "missing %d buffers\n", - pool, elements); - } + if (elements < 0) + pr_warning("Freeing of pool %u had too many buffers (%d)\n", + pool, elements); + else if (elements > 0) + pr_warning("Warning: Freeing of pool %u is missing %d buffers\n", + pool, elements); } int cvm_oct_mem_fill_fpa(int pool, int size, int elements) diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 1b237b7e689..f63459a96da 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -33,10 +33,6 @@ #include <linux/ip.h> #include <linux/string.h> #include <linux/prefetch.h> -#include <linux/ethtool.h> -#include <linux/mii.h> -#include <linux/seq_file.h> -#include <linux/proc_fs.h> #include <net/dst.h> #ifdef CONFIG_XFRM #include <linux/xfrm.h> @@ -292,39 +288,27 @@ void cvm_oct_tasklet_rx(unsigned long unused) * buffer. */ if (likely(skb_in_hw)) { - /* - * This calculation was changed in case the - * skb header is using a different address - * aliasing type than the buffer. It doesn't - * make any differnece now, but the new one is - * more correct. - */ - skb->data = - skb->head + work->packet_ptr.s.addr - - cvmx_ptr_to_phys(skb->head); + skb->data = skb->head + work->packet_ptr.s.addr - cvmx_ptr_to_phys(skb->head); prefetch(skb->data); skb->len = work->len; skb_set_tail_pointer(skb, skb->len); packet_not_copied = 1; } else { - /* * We have to copy the packet. First allocate * an skbuff for it. */ skb = dev_alloc_skb(work->len); if (!skb) { - DEBUGPRINT("Port %d failed to allocate " - "skbuff, packet dropped\n", - work->ipprt); + DEBUGPRINT("Port %d failed to allocate skbuff, packet dropped\n", + work->ipprt); cvm_oct_free_work(work); continue; } /* * Check if we've received a packet that was - * entirely stored in the work entry. This is - * untested. + * entirely stored in the work entry. */ if (unlikely(work->word2.s.bufs == 0)) { uint8_t *ptr = work->packet_data; @@ -343,15 +327,13 @@ void cvm_oct_tasklet_rx(unsigned long unused) /* No packet buffers to free */ } else { int segments = work->word2.s.bufs; - union cvmx_buf_ptr segment_ptr = - work->packet_ptr; + union cvmx_buf_ptr segment_ptr = work->packet_ptr; int len = work->len; while (segments--) { union cvmx_buf_ptr next_ptr = - *(union cvmx_buf_ptr *) - cvmx_phys_to_ptr(segment_ptr.s. - addr - 8); + *(union cvmx_buf_ptr *)cvmx_phys_to_ptr(segment_ptr.s.addr - 8); + /* * Octeon Errata PKI-100: The segment size is * wrong. Until it is fixed, calculate the @@ -361,22 +343,18 @@ void cvm_oct_tasklet_rx(unsigned long unused) * one: int segment_size = * segment_ptr.s.size; */ - int segment_size = - CVMX_FPA_PACKET_POOL_SIZE - - (segment_ptr.s.addr - - (((segment_ptr.s.addr >> 7) - - segment_ptr.s.back) << 7)); - /* Don't copy more than what is left - in the packet */ + int segment_size = CVMX_FPA_PACKET_POOL_SIZE - + (segment_ptr.s.addr - (((segment_ptr.s.addr >> 7) - segment_ptr.s.back) << 7)); + /* + * Don't copy more than what + * is left in the packet. + */ if (segment_size > len) segment_size = len; /* Copy the data into the packet */ memcpy(skb_put(skb, segment_size), - cvmx_phys_to_ptr(segment_ptr.s. - addr), + cvmx_phys_to_ptr(segment_ptr.s.addr), segment_size); - /* Reduce the amount of bytes left - to copy */ len -= segment_size; segment_ptr = next_ptr; } @@ -389,16 +367,15 @@ void cvm_oct_tasklet_rx(unsigned long unused) struct net_device *dev = cvm_oct_device[work->ipprt]; struct octeon_ethernet *priv = netdev_priv(dev); - /* Only accept packets for devices - that are currently up */ + /* + * Only accept packets for devices that are + * currently up. + */ if (likely(dev->flags & IFF_UP)) { skb->protocol = eth_type_trans(skb, dev); skb->dev = dev; - if (unlikely - (work->word2.s.not_IP - || work->word2.s.IP_exc - || work->word2.s.L4_error)) + if (unlikely(work->word2.s.not_IP || work->word2.s.IP_exc || work->word2.s.L4_error)) skb->ip_summed = CHECKSUM_NONE; else skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -415,14 +392,11 @@ void cvm_oct_tasklet_rx(unsigned long unused) } netif_receive_skb(skb); } else { + /* Drop any packet received for a device that isn't up */ /* - * Drop any packet received for a - * device that isn't up. - */ - /* - DEBUGPRINT("%s: Device not up, packet dropped\n", - dev->name); - */ + DEBUGPRINT("%s: Device not up, packet dropped\n", + dev->name); + */ #ifdef CONFIG_64BIT atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped); #else @@ -435,9 +409,8 @@ void cvm_oct_tasklet_rx(unsigned long unused) * Drop any packet received for a device that * doesn't exist. */ - DEBUGPRINT("Port %d not controlled by Linux, packet " - "dropped\n", - work->ipprt); + DEBUGPRINT("Port %d not controlled by Linux, packet dropped\n", + work->ipprt); dev_kfree_skb_irq(skb); } /* diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c index 535294105f6..a3594bb0a45 100644 --- a/drivers/staging/octeon/ethernet-tx.c +++ b/drivers/staging/octeon/ethernet-tx.c @@ -31,10 +31,6 @@ #include <linux/etherdevice.h> #include <linux/ip.h> #include <linux/string.h> -#include <linux/ethtool.h> -#include <linux/mii.h> -#include <linux/seq_file.h> -#include <linux/proc_fs.h> #include <net/dst.h> #ifdef CONFIG_XFRM #include <linux/xfrm.h> @@ -529,101 +525,6 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev) } /** - * Transmit a work queue entry out of the ethernet port. Both - * the work queue entry and the packet data can optionally be - * freed. The work will be freed on error as well. - * - * @dev: Device to transmit out. - * @work_queue_entry: - * Work queue entry to send - * @do_free: True if the work queue entry and packet data should be - * freed. If false, neither will be freed. - * @qos: Index into the queues for this port to transmit on. This - * is used to implement QoS if their are multiple queues per - * port. This parameter must be between 0 and the number of - * queues per port minus 1. Values outside of this range will - * be change to zero. - * - * Returns Zero on success, negative on failure. - */ -int cvm_oct_transmit_qos(struct net_device *dev, void *work_queue_entry, - int do_free, int qos) -{ - unsigned long flags; - union cvmx_buf_ptr hw_buffer; - cvmx_pko_command_word0_t pko_command; - int dropped; - struct octeon_ethernet *priv = netdev_priv(dev); - cvmx_wqe_t *work = work_queue_entry; - - if (!(dev->flags & IFF_UP)) { - DEBUGPRINT("%s: Device not up\n", dev->name); - if (do_free) - cvm_oct_free_work(work); - return -1; - } - - /* The check on CVMX_PKO_QUEUES_PER_PORT_* is designed to completely - remove "qos" in the event neither interface supports - multiple queues per port */ - if ((CVMX_PKO_QUEUES_PER_PORT_INTERFACE0 > 1) || - (CVMX_PKO_QUEUES_PER_PORT_INTERFACE1 > 1)) { - if (qos <= 0) - qos = 0; - else if (qos >= cvmx_pko_get_num_queues(priv->port)) - qos = 0; - } else - qos = 0; - - /* Start off assuming no drop */ - dropped = 0; - - local_irq_save(flags); - cvmx_pko_send_packet_prepare(priv->port, priv->queue + qos, - CVMX_PKO_LOCK_CMD_QUEUE); - - /* Build the PKO buffer pointer */ - hw_buffer.u64 = 0; - hw_buffer.s.addr = work->packet_ptr.s.addr; - hw_buffer.s.pool = CVMX_FPA_PACKET_POOL; - hw_buffer.s.size = CVMX_FPA_PACKET_POOL_SIZE; - hw_buffer.s.back = work->packet_ptr.s.back; - - /* Build the PKO command */ - pko_command.u64 = 0; - pko_command.s.n2 = 1; /* Don't pollute L2 with the outgoing packet */ - pko_command.s.dontfree = !do_free; - pko_command.s.segs = work->word2.s.bufs; - pko_command.s.total_bytes = work->len; - - /* Check if we can use the hardware checksumming */ - if (unlikely(work->word2.s.not_IP || work->word2.s.IP_exc)) - pko_command.s.ipoffp1 = 0; - else - pko_command.s.ipoffp1 = sizeof(struct ethhdr) + 1; - - /* Send the packet to the output queue */ - if (unlikely - (cvmx_pko_send_packet_finish - (priv->port, priv->queue + qos, pko_command, hw_buffer, - CVMX_PKO_LOCK_CMD_QUEUE))) { - DEBUGPRINT("%s: Failed to send the packet\n", dev->name); - dropped = -1; - } - local_irq_restore(flags); - - if (unlikely(dropped)) { - if (do_free) - cvm_oct_free_work(work); - priv->stats.tx_dropped++; - } else if (do_free) - cvmx_fpa_free(work, CVMX_FPA_WQE_POOL, DONT_WRITEBACK(1)); - - return dropped; -} -EXPORT_SYMBOL(cvm_oct_transmit_qos); - -/** * This function frees all skb that are currently queued for TX. * * @dev: Device being shutdown diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c index 4cfd4b136b3..4e054262a00 100644 --- a/drivers/staging/octeon/ethernet.c +++ b/drivers/staging/octeon/ethernet.c @@ -104,14 +104,6 @@ MODULE_PARM_DESC(pow_send_list, "\n" "\t\"eth2,spi3,spi7\" would cause these three devices to transmit\n" "\tusing the pow_send_group."); -static int disable_core_queueing = 1; -module_param(disable_core_queueing, int, 0444); -MODULE_PARM_DESC(disable_core_queueing, "\n" - "\tWhen set the networking core's tx_queue_len is set to zero. This\n" - "\tallows packets to be sent without lock contention in the packet\n" - "\tscheduler resulting in some cases in improved throughput.\n"); - - /* * The offset from mac_addr_base that should be used for the next port * that is configured. By convention, if any mgmt ports exist on the @@ -205,10 +197,6 @@ static __init void cvm_oct_configure_common_hw(void) cvmx_helper_setup_red(num_packet_buffers / 4, num_packet_buffers / 8); - /* Enable the MII interface */ - if (!octeon_is_simulation()) - cvmx_write_csr(CVMX_SMIX_EN(0), 1); - /* Register an IRQ hander for to receive POW interrupts */ r = request_irq(OCTEON_IRQ_WORKQ0 + pow_receive_group, cvm_oct_do_interrupt, IRQF_SHARED, "Ethernet", @@ -689,7 +677,6 @@ static int __init cvm_oct_init_module(void) if (dev) { /* Initialize the device private structure. */ struct octeon_ethernet *priv = netdev_priv(dev); - memset(priv, 0, sizeof(struct octeon_ethernet)); dev->netdev_ops = &cvm_oct_pow_netdev_ops; priv->imode = CVMX_HELPER_INTERFACE_MODE_DISABLED; @@ -700,19 +687,16 @@ static int __init cvm_oct_init_module(void) skb_queue_head_init(&priv->tx_free_list[qos]); if (register_netdev(dev) < 0) { - pr_err("Failed to register ethernet " - "device for POW\n"); + pr_err("Failed to register ethernet device for POW\n"); kfree(dev); } else { cvm_oct_device[CVMX_PIP_NUM_INPUT_PORTS] = dev; - pr_info("%s: POW send group %d, receive " - "group %d\n", - dev->name, pow_send_group, - pow_receive_group); + pr_info("%s: POW send group %d, receive group %d\n", + dev->name, pow_send_group, + pow_receive_group); } } else { - pr_err("Failed to allocate ethernet device " - "for POW\n"); + pr_err("Failed to allocate ethernet device for POW\n"); } } @@ -730,12 +714,9 @@ static int __init cvm_oct_init_module(void) struct net_device *dev = alloc_etherdev(sizeof(struct octeon_ethernet)); if (!dev) { - pr_err("Failed to allocate ethernet device " - "for port %d\n", port); + pr_err("Failed to allocate ethernet device for port %d\n", port); continue; } - if (disable_core_queueing) - dev->tx_queue_len = 0; /* Initialize the device private structure. */ priv = netdev_priv(dev); diff --git a/drivers/staging/octeon/octeon-ethernet.h b/drivers/staging/octeon/octeon-ethernet.h index 402a15b9bb0..208da27bc02 100644 --- a/drivers/staging/octeon/octeon-ethernet.h +++ b/drivers/staging/octeon/octeon-ethernet.h @@ -68,47 +68,6 @@ struct octeon_ethernet { */ int cvm_oct_free_work(void *work_queue_entry); -/** - * Transmit a work queue entry out of the ethernet port. Both - * the work queue entry and the packet data can optionally be - * freed. The work will be freed on error as well. - * - * @dev: Device to transmit out. - * @work_queue_entry: - * Work queue entry to send - * @do_free: True if the work queue entry and packet data should be - * freed. If false, neither will be freed. - * @qos: Index into the queues for this port to transmit on. This - * is used to implement QoS if their are multiple queues per - * port. This parameter must be between 0 and the number of - * queues per port minus 1. Values outside of this range will - * be change to zero. - * - * Returns Zero on success, negative on failure. - */ -int cvm_oct_transmit_qos(struct net_device *dev, void *work_queue_entry, - int do_free, int qos); - -/** - * Transmit a work queue entry out of the ethernet port. Both - * the work queue entry and the packet data can optionally be - * freed. The work will be freed on error as well. This simply - * wraps cvmx_oct_transmit_qos() for backwards compatability. - * - * @dev: Device to transmit out. - * @work_queue_entry: - * Work queue entry to send - * @do_free: True if the work queue entry and packet data should be - * freed. If false, neither will be freed. - * - * Returns Zero on success, negative on failure. - */ -static inline int cvm_oct_transmit(struct net_device *dev, - void *work_queue_entry, int do_free) -{ - return cvm_oct_transmit_qos(dev, work_queue_entry, do_free, 0); -} - extern int cvm_oct_rgmii_init(struct net_device *dev); extern void cvm_oct_rgmii_uninit(struct net_device *dev); extern int cvm_oct_rgmii_open(struct net_device *dev); |