summaryrefslogtreecommitdiffstats
path: root/drivers/net
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/bnx2.c48
-rw-r--r--drivers/net/cxgb3/cxgb3_main.c2
-rw-r--r--drivers/net/e1000e/82571.c20
-rw-r--r--drivers/net/e1000e/e1000.h5
-rw-r--r--drivers/net/e1000e/netdev.c70
-rw-r--r--drivers/net/gianfar.c6
-rw-r--r--drivers/net/ixgbe/ixgbe_82599.c62
-rw-r--r--drivers/net/ixgbe/ixgbe_main.c22
-rw-r--r--drivers/net/ixgbe/ixgbe_type.h2
-rw-r--r--drivers/net/pcmcia/smc91c92_cs.c31
-rw-r--r--drivers/net/r8169.c32
-rw-r--r--drivers/net/sfc/efx.c4
-rw-r--r--drivers/net/sfc/falcon.c4
-rw-r--r--drivers/net/sfc/falcon_boards.c13
-rw-r--r--drivers/net/sfc/nic.h2
-rw-r--r--drivers/net/sfc/siena.c13
-rw-r--r--drivers/net/tg3.c1
-rw-r--r--drivers/net/usb/Kconfig10
-rw-r--r--drivers/net/usb/Makefile1
-rw-r--r--drivers/net/usb/cdc_ether.c1
-rw-r--r--drivers/net/usb/ipheth.c15
-rw-r--r--drivers/net/usb/kaweth.c1
-rw-r--r--drivers/net/usb/sierra_net.c1001
23 files changed, 1230 insertions, 136 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index a257babd1bb..ac90a3828f6 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -58,8 +58,8 @@
#include "bnx2_fw.h"
#define DRV_MODULE_NAME "bnx2"
-#define DRV_MODULE_VERSION "2.0.8"
-#define DRV_MODULE_RELDATE "Feb 15, 2010"
+#define DRV_MODULE_VERSION "2.0.9"
+#define DRV_MODULE_RELDATE "April 27, 2010"
#define FW_MIPS_FILE_06 "bnx2/bnx2-mips-06-5.0.0.j6.fw"
#define FW_RV2P_FILE_06 "bnx2/bnx2-rv2p-06-5.0.0.j3.fw"
#define FW_MIPS_FILE_09 "bnx2/bnx2-mips-09-5.0.0.j9.fw"
@@ -651,9 +651,10 @@ bnx2_napi_enable(struct bnx2 *bp)
}
static void
-bnx2_netif_stop(struct bnx2 *bp)
+bnx2_netif_stop(struct bnx2 *bp, bool stop_cnic)
{
- bnx2_cnic_stop(bp);
+ if (stop_cnic)
+ bnx2_cnic_stop(bp);
if (netif_running(bp->dev)) {
int i;
@@ -671,14 +672,15 @@ bnx2_netif_stop(struct bnx2 *bp)
}
static void
-bnx2_netif_start(struct bnx2 *bp)
+bnx2_netif_start(struct bnx2 *bp, bool start_cnic)
{
if (atomic_dec_and_test(&bp->intr_sem)) {
if (netif_running(bp->dev)) {
netif_tx_wake_all_queues(bp->dev);
bnx2_napi_enable(bp);
bnx2_enable_int(bp);
- bnx2_cnic_start(bp);
+ if (start_cnic)
+ bnx2_cnic_start(bp);
}
}
}
@@ -4759,8 +4761,12 @@ bnx2_reset_chip(struct bnx2 *bp, u32 reset_code)
rc = bnx2_alloc_bad_rbuf(bp);
}
- if (bp->flags & BNX2_FLAG_USING_MSIX)
+ if (bp->flags & BNX2_FLAG_USING_MSIX) {
bnx2_setup_msix_tbl(bp);
+ /* Prevent MSIX table reads and write from timing out */
+ REG_WR(bp, BNX2_MISC_ECO_HW_CTL,
+ BNX2_MISC_ECO_HW_CTL_LARGE_GRC_TMOUT_EN);
+ }
return rc;
}
@@ -6273,12 +6279,12 @@ bnx2_reset_task(struct work_struct *work)
return;
}
- bnx2_netif_stop(bp);
+ bnx2_netif_stop(bp, true);
bnx2_init_nic(bp, 1);
atomic_set(&bp->intr_sem, 1);
- bnx2_netif_start(bp);
+ bnx2_netif_start(bp, true);
rtnl_unlock();
}
@@ -6320,7 +6326,7 @@ bnx2_vlan_rx_register(struct net_device *dev, struct vlan_group *vlgrp)
struct bnx2 *bp = netdev_priv(dev);
if (netif_running(dev))
- bnx2_netif_stop(bp);
+ bnx2_netif_stop(bp, false);
bp->vlgrp = vlgrp;
@@ -6331,7 +6337,7 @@ bnx2_vlan_rx_register(struct net_device *dev, struct vlan_group *vlgrp)
if (bp->flags & BNX2_FLAG_CAN_KEEP_VLAN)
bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_KEEP_VLAN_UPDATE, 0, 1);
- bnx2_netif_start(bp);
+ bnx2_netif_start(bp, false);
}
#endif
@@ -7051,9 +7057,9 @@ bnx2_set_coalesce(struct net_device *dev, struct ethtool_coalesce *coal)
bp->stats_ticks &= BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
if (netif_running(bp->dev)) {
- bnx2_netif_stop(bp);
+ bnx2_netif_stop(bp, true);
bnx2_init_nic(bp, 0);
- bnx2_netif_start(bp);
+ bnx2_netif_start(bp, true);
}
return 0;
@@ -7083,7 +7089,7 @@ bnx2_change_ring_size(struct bnx2 *bp, u32 rx, u32 tx)
/* Reset will erase chipset stats; save them */
bnx2_save_stats(bp);
- bnx2_netif_stop(bp);
+ bnx2_netif_stop(bp, true);
bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_RESET);
bnx2_free_skbs(bp);
bnx2_free_mem(bp);
@@ -7111,7 +7117,7 @@ bnx2_change_ring_size(struct bnx2 *bp, u32 rx, u32 tx)
bnx2_setup_cnic_irq_info(bp);
mutex_unlock(&bp->cnic_lock);
#endif
- bnx2_netif_start(bp);
+ bnx2_netif_start(bp, true);
}
return 0;
}
@@ -7364,7 +7370,7 @@ bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)
if (etest->flags & ETH_TEST_FL_OFFLINE) {
int i;
- bnx2_netif_stop(bp);
+ bnx2_netif_stop(bp, true);
bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_DIAG);
bnx2_free_skbs(bp);
@@ -7383,7 +7389,7 @@ bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)
bnx2_shutdown_chip(bp);
else {
bnx2_init_nic(bp, 1);
- bnx2_netif_start(bp);
+ bnx2_netif_start(bp, true);
}
/* wait for link up */
@@ -8377,7 +8383,7 @@ bnx2_suspend(struct pci_dev *pdev, pm_message_t state)
return 0;
flush_scheduled_work();
- bnx2_netif_stop(bp);
+ bnx2_netif_stop(bp, true);
netif_device_detach(dev);
del_timer_sync(&bp->timer);
bnx2_shutdown_chip(bp);
@@ -8399,7 +8405,7 @@ bnx2_resume(struct pci_dev *pdev)
bnx2_set_power_state(bp, PCI_D0);
netif_device_attach(dev);
bnx2_init_nic(bp, 1);
- bnx2_netif_start(bp);
+ bnx2_netif_start(bp, true);
return 0;
}
@@ -8426,7 +8432,7 @@ static pci_ers_result_t bnx2_io_error_detected(struct pci_dev *pdev,
}
if (netif_running(dev)) {
- bnx2_netif_stop(bp);
+ bnx2_netif_stop(bp, true);
del_timer_sync(&bp->timer);
bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
}
@@ -8483,7 +8489,7 @@ static void bnx2_io_resume(struct pci_dev *pdev)
rtnl_lock();
if (netif_running(dev))
- bnx2_netif_start(bp);
+ bnx2_netif_start(bp, true);
netif_device_attach(dev);
rtnl_unlock();
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index aced6c5e635..e3f1b856649 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -439,7 +439,7 @@ static void free_irq_resources(struct adapter *adapter)
static int await_mgmt_replies(struct adapter *adap, unsigned long init_cnt,
unsigned long n)
{
- int attempts = 5;
+ int attempts = 10;
while (adap->sge.qs[0].rspq.offload_pkts < init_cnt + n) {
if (!--attempts)
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 712ccc66ba2..90155552ea0 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -336,7 +336,6 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
static int global_quad_port_a; /* global port a indication */
struct pci_dev *pdev = adapter->pdev;
- u16 eeprom_data = 0;
int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
s32 rc;
@@ -387,16 +386,15 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD)
adapter->flags &= ~FLAG_HAS_WOL;
break;
-
case e1000_82573:
+ case e1000_82574:
+ case e1000_82583:
+ /* Disable ASPM L0s due to hardware errata */
+ e1000e_disable_aspm(adapter->pdev, PCIE_LINK_STATE_L0S);
+
if (pdev->device == E1000_DEV_ID_82573L) {
- if (e1000_read_nvm(&adapter->hw, NVM_INIT_3GIO_3, 1,
- &eeprom_data) < 0)
- break;
- if (!(eeprom_data & NVM_WORD1A_ASPM_MASK)) {
- adapter->flags |= FLAG_HAS_JUMBO_FRAMES;
- adapter->max_hw_frame_size = DEFAULT_JUMBO;
- }
+ adapter->flags |= FLAG_HAS_JUMBO_FRAMES;
+ adapter->max_hw_frame_size = DEFAULT_JUMBO;
}
break;
default:
@@ -1792,6 +1790,7 @@ struct e1000_info e1000_82571_info = {
| FLAG_RESET_OVERWRITES_LAA /* errata */
| FLAG_TARC_SPEED_MODE_BIT /* errata */
| FLAG_APME_CHECK_PORT_B,
+ .flags2 = FLAG2_DISABLE_ASPM_L1, /* errata 13 */
.pba = 38,
.max_hw_frame_size = DEFAULT_JUMBO,
.get_variants = e1000_get_variants_82571,
@@ -1809,6 +1808,7 @@ struct e1000_info e1000_82572_info = {
| FLAG_RX_CSUM_ENABLED
| FLAG_HAS_CTRLEXT_ON_LOAD
| FLAG_TARC_SPEED_MODE_BIT, /* errata */
+ .flags2 = FLAG2_DISABLE_ASPM_L1, /* errata 13 */
.pba = 38,
.max_hw_frame_size = DEFAULT_JUMBO,
.get_variants = e1000_get_variants_82571,
@@ -1820,13 +1820,11 @@ struct e1000_info e1000_82572_info = {
struct e1000_info e1000_82573_info = {
.mac = e1000_82573,
.flags = FLAG_HAS_HW_VLAN_FILTER
- | FLAG_HAS_JUMBO_FRAMES
| FLAG_HAS_WOL
| FLAG_APME_IN_CTRL3
| FLAG_RX_CSUM_ENABLED
| FLAG_HAS_SMART_POWER_DOWN
| FLAG_HAS_AMT
- | FLAG_HAS_ERT
| FLAG_HAS_SWSM_ON_LOAD,
.pba = 20,
.max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN,
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index 118bdf48359..ee32b9b27a9 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -37,6 +37,7 @@
#include <linux/io.h>
#include <linux/netdevice.h>
#include <linux/pci.h>
+#include <linux/pci-aspm.h>
#include "hw.h"
@@ -374,7 +375,7 @@ struct e1000_adapter {
struct e1000_info {
enum e1000_mac_type mac;
unsigned int flags;
- unsigned int flags2;
+ unsigned int flags2;
u32 pba;
u32 max_hw_frame_size;
s32 (*get_variants)(struct e1000_adapter *);
@@ -421,6 +422,7 @@ struct e1000_info {
#define FLAG2_CRC_STRIPPING (1 << 0)
#define FLAG2_HAS_PHY_WAKEUP (1 << 1)
#define FLAG2_IS_DISCARDING (1 << 2)
+#define FLAG2_DISABLE_ASPM_L1 (1 << 3)
#define E1000_RX_DESC_PS(R, i) \
(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
@@ -461,6 +463,7 @@ extern void e1000e_update_stats(struct e1000_adapter *adapter);
extern bool e1000e_has_link(struct e1000_adapter *adapter);
extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
+extern void e1000e_disable_aspm(struct pci_dev *pdev, u16 state);
extern unsigned int copybreak;
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 73d43c53015..fb8fc7d1b50 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -4283,6 +4283,14 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
return -EINVAL;
}
+ /* 82573 Errata 17 */
+ if (((adapter->hw.mac.type == e1000_82573) ||
+ (adapter->hw.mac.type == e1000_82574)) &&
+ (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN)) {
+ adapter->flags2 |= FLAG2_DISABLE_ASPM_L1;
+ e1000e_disable_aspm(adapter->pdev, PCIE_LINK_STATE_L1);
+ }
+
while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
msleep(1);
/* e1000e_down -> e1000e_reset dependent on max_frame_size & mtu */
@@ -4605,29 +4613,39 @@ static void e1000_complete_shutdown(struct pci_dev *pdev, bool sleep,
}
}
-static void e1000e_disable_l1aspm(struct pci_dev *pdev)
+#ifdef CONFIG_PCIEASPM
+static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
+{
+ pci_disable_link_state(pdev, state);
+}
+#else
+static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
{
int pos;
- u16 val;
+ u16 reg16;
/*
- * 82573 workaround - disable L1 ASPM on mobile chipsets
- *
- * L1 ASPM on various mobile (ich7) chipsets do not behave properly
- * resulting in lost data or garbage information on the pci-e link
- * level. This could result in (false) bad EEPROM checksum errors,
- * long ping times (up to 2s) or even a system freeze/hang.
- *
- * Unfortunately this feature saves about 1W power consumption when
- * active.
+ * Both device and parent should have the same ASPM setting.
+ * Disable ASPM in downstream component first and then upstream.
*/
- pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
- pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &val);
- if (val & 0x2) {
- dev_warn(&pdev->dev, "Disabling L1 ASPM\n");
- val &= ~0x2;
- pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, val);
- }
+ pos = pci_pcie_cap(pdev);
+ pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
+ reg16 &= ~state;
+ pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);
+
+ pos = pci_pcie_cap(pdev->bus->self);
+ pci_read_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, &reg16);
+ reg16 &= ~state;
+ pci_write_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, reg16);
+}
+#endif
+void e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
+{
+ dev_info(&pdev->dev, "Disabling ASPM %s %s\n",
+ (state & PCIE_LINK_STATE_L0S) ? "L0s" : "",
+ (state & PCIE_LINK_STATE_L1) ? "L1" : "");
+
+ __e1000e_disable_aspm(pdev, state);
}
#ifdef CONFIG_PM
@@ -4653,7 +4671,8 @@ static int e1000_resume(struct pci_dev *pdev)
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
pci_save_state(pdev);
- e1000e_disable_l1aspm(pdev);
+ if (adapter->flags2 & FLAG2_DISABLE_ASPM_L1)
+ e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1);
err = pci_enable_device_mem(pdev);
if (err) {
@@ -4795,7 +4814,8 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
int err;
pci_ers_result_t result;
- e1000e_disable_l1aspm(pdev);
+ if (adapter->flags2 & FLAG2_DISABLE_ASPM_L1)
+ e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1);
err = pci_enable_device_mem(pdev);
if (err) {
dev_err(&pdev->dev,
@@ -4889,13 +4909,6 @@ static void e1000_eeprom_checks(struct e1000_adapter *adapter)
dev_warn(&adapter->pdev->dev,
"Warning: detected DSPD enabled in EEPROM\n");
}
-
- ret_val = e1000_read_nvm(hw, NVM_INIT_3GIO_3, 1, &buf);
- if (!ret_val && (le16_to_cpu(buf) & (3 << 2))) {
- /* ASPM enable */
- dev_warn(&adapter->pdev->dev,
- "Warning: detected ASPM enabled in EEPROM\n");
- }
}
static const struct net_device_ops e1000e_netdev_ops = {
@@ -4944,7 +4957,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
u16 eeprom_data = 0;
u16 eeprom_apme_mask = E1000_EEPROM_APME;
- e1000e_disable_l1aspm(pdev);
+ if (ei->flags2 & FLAG2_DISABLE_ASPM_L1)
+ e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1);
err = pci_enable_device_mem(pdev);
if (err)
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index df49af38215..4e97ca18299 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -1511,9 +1511,9 @@ static void gfar_halt_nodisable(struct net_device *dev)
tempval |= (DMACTRL_GRS | DMACTRL_GTS);
gfar_write(&regs->dmactrl, tempval);
- while (!(gfar_read(&regs->ievent) &
- (IEVENT_GRSC | IEVENT_GTSC)))
- cpu_relax();
+ spin_event_timeout(((gfar_read(&regs->ievent) &
+ (IEVENT_GRSC | IEVENT_GTSC)) ==
+ (IEVENT_GRSC | IEVENT_GTSC)), -1, 0);
}
}
diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c
index b405a00817c..12fc0e7ba2c 100644
--- a/drivers/net/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ixgbe/ixgbe_82599.c
@@ -39,6 +39,8 @@
#define IXGBE_82599_MC_TBL_SIZE 128
#define IXGBE_82599_VFT_TBL_SIZE 128
+void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
+void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
ixgbe_link_speed speed,
@@ -69,8 +71,14 @@ static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
if (hw->phy.multispeed_fiber) {
/* Set up dual speed SFP+ support */
mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
+ mac->ops.disable_tx_laser =
+ &ixgbe_disable_tx_laser_multispeed_fiber;
+ mac->ops.enable_tx_laser =
+ &ixgbe_enable_tx_laser_multispeed_fiber;
mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
} else {
+ mac->ops.disable_tx_laser = NULL;
+ mac->ops.enable_tx_laser = NULL;
mac->ops.flap_tx_laser = NULL;
if ((mac->ops.get_media_type(hw) ==
ixgbe_media_type_backplane) &&
@@ -415,6 +423,44 @@ s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
return status;
}
+ /**
+ * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
+ * @hw: pointer to hardware structure
+ *
+ * The base drivers may require better control over SFP+ module
+ * PHY states. This includes selectively shutting down the Tx
+ * laser on the PHY, effectively halting physical link.
+ **/
+void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
+{
+ u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
+
+ /* Disable tx laser; allow 100us to go dark per spec */
+ esdp_reg |= IXGBE_ESDP_SDP3;
+ IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+ IXGBE_WRITE_FLUSH(hw);
+ udelay(100);
+}
+
+/**
+ * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
+ * @hw: pointer to hardware structure
+ *
+ * The base drivers may require better control over SFP+ module
+ * PHY states. This includes selectively turning on the Tx
+ * laser on the PHY, effectively starting physical link.
+ **/
+void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
+{
+ u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
+
+ /* Enable tx laser; allow 100ms to light up */
+ esdp_reg &= ~IXGBE_ESDP_SDP3;
+ IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+ IXGBE_WRITE_FLUSH(hw);
+ msleep(100);
+}
+
/**
* ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
* @hw: pointer to hardware structure
@@ -429,23 +475,11 @@ s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
**/
void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
{
- u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
-
hw_dbg(hw, "ixgbe_flap_tx_laser_multispeed_fiber\n");
if (hw->mac.autotry_restart) {
- /* Disable tx laser; allow 100us to go dark per spec */
- esdp_reg |= IXGBE_ESDP_SDP3;
- IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
- IXGBE_WRITE_FLUSH(hw);
- udelay(100);
-
- /* Enable tx laser; allow 100ms to light up */
- esdp_reg &= ~IXGBE_ESDP_SDP3;
- IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
- IXGBE_WRITE_FLUSH(hw);
- msleep(100);
-
+ ixgbe_disable_tx_laser_multispeed_fiber(hw);
+ ixgbe_enable_tx_laser_multispeed_fiber(hw);
hw->mac.autotry_restart = false;
}
}
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 8f677cb8629..6c00ee493a3 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2982,6 +2982,10 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
else
ixgbe_configure_msi_and_legacy(adapter);
+ /* enable the optics */
+ if (hw->phy.multispeed_fiber)
+ hw->mac.ops.enable_tx_laser(hw);
+
clear_bit(__IXGBE_DOWN, &adapter->state);
ixgbe_napi_enable_all(adapter);
@@ -3243,6 +3247,10 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
/* signal that we are down to the interrupt handler */
set_bit(__IXGBE_DOWN, &adapter->state);
+ /* power down the optics */
+ if (hw->phy.multispeed_fiber)
+ hw->mac.ops.disable_tx_laser(hw);
+
/* disable receive for all VFs and wait one second */
if (adapter->num_vfs) {
/* ping all the active vfs to let them know we are going down */
@@ -6253,6 +6261,10 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
goto err_eeprom;
}
+ /* power down the optics */
+ if (hw->phy.multispeed_fiber)
+ hw->mac.ops.disable_tx_laser(hw);
+
init_timer(&adapter->watchdog_timer);
adapter->watchdog_timer.function = &ixgbe_watchdog;
adapter->watchdog_timer.data = (unsigned long)adapter;
@@ -6400,16 +6412,6 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev)
del_timer_sync(&adapter->sfp_timer);
cancel_work_sync(&adapter->watchdog_task);
cancel_work_sync(&adapter->sfp_task);
- if (adapter->hw.phy.multispeed_fiber) {
- struct ixgbe_hw *hw = &adapter->hw;
- /*
- * Restart clause 37 autoneg, disable and re-enable
- * the tx laser, to clear & alert the link partner
- * that it needs to restart autotry
- */
- hw->mac.autotry_restart = true;
- hw->mac.ops.flap_tx_laser(hw);
- }
cancel_work_sync(&adapter->multispeed_fiber_task);
cancel_work_sync(&adapter->sfp_config_module_task);
if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE ||
diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index 4ec6dc1a5b7..534affcc38c 100644
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -2398,6 +2398,8 @@ struct ixgbe_mac_operations {
s32 (*enable_rx_dma)(struct ixgbe_hw *, u32);
/* Link */
+ void (*disable_tx_laser)(struct ixgbe_hw *);
+ void (*enable_tx_laser)(struct ixgbe_hw *);
void (*flap_tx_laser)(struct ixgbe_hw *);
s32 (*setup_link)(struct ixgbe_hw *, ixgbe_link_speed, bool, bool);
s32 (*check_link)(struct ixgbe_hw *, ixgbe_link_speed *, bool *, bool);
diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index fd9d6e34fda..ccc553782a0 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -1804,23 +1804,30 @@ static void media_check(u_long arg)
SMC_SELECT_BANK(1);
media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
+ SMC_SELECT_BANK(saved_bank);
+ spin_unlock_irqrestore(&smc->lock, flags);
+
/* Check for pending interrupt with watchdog flag set: with
this, we can limp along even if the interrupt is blocked */
if (smc->watchdog++ && ((i>>8) & i)) {
if (!smc->fast_poll)
printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
+ local_irq_save(flags);
smc_interrupt(dev->irq, dev);
+ local_irq_restore(flags);
smc->fast_poll = HZ;
}
if (smc->fast_poll) {
smc->fast_poll--;
smc->media.expires = jiffies + HZ/100;
add_timer(&smc->media);
- SMC_SELECT_BANK(saved_bank);
- spin_unlock_irqrestore(&smc->lock, flags);
return;
}
+ spin_lock_irqsave(&smc->lock, flags);
+
+ saved_bank = inw(ioaddr + BANK_SELECT);
+
if (smc->cfg & CFG_MII_SELECT) {
if (smc->mii_if.phy_id < 0)
goto reschedule;
@@ -1978,15 +1985,16 @@ static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
unsigned int ioaddr = dev->base_addr;
u16 saved_bank = inw(ioaddr + BANK_SELECT);
int ret;
+ unsigned long flags;
- spin_lock_irq(&smc->lock);
+ spin_lock_irqsave(&smc->lock, flags);
SMC_SELECT_BANK(3);
if (smc->cfg & CFG_MII_SELECT)
ret = mii_ethtool_gset(&smc->mii_if, ecmd);
else
ret = smc_netdev_get_ecmd(dev, ecmd);
SMC_SELECT_BANK(saved_bank);
- spin_unlock_irq(&smc->lock);
+ spin_unlock_irqrestore(&smc->lock, flags);
return ret;
}
@@ -1996,15 +2004,16 @@ static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
unsigned int ioaddr = dev->base_addr;
u16 saved_bank = inw(ioaddr + BANK_SELECT);
int ret;
+ unsigned long flags;
- spin_lock_irq(&smc->lock);
+ spin_lock_irqsave(&smc->lock, flags);
SMC_SELECT_BANK(3);
if (smc->cfg & CFG_MII_SELECT)
ret = mii_ethtool_sset(&smc->mii_if, ecmd);
else
ret = smc_netdev_set_ecmd(dev, ecmd);
SMC_SELECT_BANK(saved_bank);
- spin_unlock_irq(&smc->lock);
+ spin_unlock_irqrestore(&smc->lock, flags);
return ret;
}
@@ -2014,12 +2023,13 @@ static u32 smc_get_link(struct net_device *dev)
unsigned int ioaddr = dev->base_addr;
u16 saved_bank = inw(ioaddr + BANK_SELECT);
u32 ret;
+ unsigned long flags;
- spin_lock_irq(&smc->lock);
+ spin_lock_irqsave(&smc->lock, flags);
SMC_SELECT_BANK(3);
ret = smc_link_ok(dev);
SMC_SELECT_BANK(saved_bank);
- spin_unlock_irq(&smc->lock);
+ spin_unlock_irqrestore(&smc->lock, flags);
return ret;
}
@@ -2056,16 +2066,17 @@ static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
int rc = 0;
u16 saved_bank;
unsigned int ioaddr = dev->base_addr;
+ unsigned long flags;
if (!netif_running(dev))
return -EINVAL;
- spin_lock_irq(&smc->lock);
+ spin_lock_irqsave(&smc->lock, flags);
saved_bank = inw(ioaddr + BANK_SELECT);
SMC_SELECT_BANK(3);
rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
SMC_SELECT_BANK(saved_bank);
- spin_unlock_irq(&smc->lock);
+ spin_unlock_irqrestore(&smc->lock, flags);
return rc;
}
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index dbb1f5a1824..4748c21eb72 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2759,6 +2759,7 @@ static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
{
iounmap(ioaddr);
pci_release_regions(pdev);
+ pci_clear_mwi(pdev);
pci_disable_device(pdev);
free_netdev(dev);
}
@@ -2825,8 +2826,13 @@ static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
spin_lock_irq(&tp->lock);
RTL_W8(Cfg9346, Cfg9346_Unlock);
+
RTL_W32(MAC4, high);
+ RTL_R32(MAC4);
+
RTL_W32(MAC0, low);
+ RTL_R32(MAC0);
+
RTL_W8(Cfg9346, Cfg9346_Lock);
spin_unlock_irq(&tp->lock);
@@ -3014,9 +3020,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out_free_dev_1;
}
- rc = pci_set_mwi(pdev);
- if (rc < 0)
- goto err_out_disable_2;
+ if (pci_set_mwi(pdev) < 0)
+ netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
/* make sure PCI base addr 1 is MMIO */
if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
@@ -3024,7 +3029,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
"region #%d not an MMIO resource, aborting\n",
region);
rc = -ENODEV;
- goto err_out_mwi_3;
+ goto err_out_mwi_2;
}
/* check for weird/broken PCI region reporting */
@@ -3032,13 +3037,13 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
netif_err(tp, probe, dev,
"Invalid PCI region size(s), aborting\n");
rc = -ENODEV;
- goto err_out_mwi_3;
+ goto err_out_mwi_2;
}
rc = pci_request_regions(pdev, MODULENAME);
if (rc < 0) {
netif_err(tp, probe, dev, "could not request regions\n");
- goto err_out_mwi_3;
+ goto err_out_mwi_2;
}
tp->cp_cmd = PCIMulRW | RxChkSum;
@@ -3051,7 +3056,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc < 0) {
netif_err(tp, probe, dev, "DMA configuration failed\n");
- goto err_out_free_res_4;
+ goto err_out_free_res_3;
}
}
@@ -3060,7 +3065,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (!ioaddr) {
netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
rc = -EIO;
- goto err_out_free_res_4;
+ goto err_out_free_res_3;
}
tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
@@ -3102,7 +3107,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (i == ARRAY_SIZE(rtl_chip_info)) {
dev_err(&pdev->dev,
"driver bug, MAC version not found in rtl_chip_info\n");
- goto err_out_msi_5;
+ goto err_out_msi_4;
}
tp->chipset = i;
@@ -3167,7 +3172,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rc = register_netdev(dev);
if (rc < 0)
- goto err_out_msi_5;
+ goto err_out_msi_4;
pci_set_drvdata(pdev, dev);
@@ -3190,14 +3195,13 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
out:
return rc;
-err_out_msi_5:
+err_out_msi_4:
rtl_disable_msi(pdev, tp);
iounmap(ioaddr);
-err_out_free_res_4:
+err_out_free_res_3:
pci_release_regions(pdev);
-err_out_mwi_3:
+err_out_mwi_2:
pci_clear_mwi(pdev);
-err_out_disable_2:
pci_disable_device(pdev);
err_out_free_dev_1:
free_netdev(dev);
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 6486657c47b..649a264d6a8 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1861,6 +1861,7 @@ out:
}
if (disabled) {
+ dev_close(efx->net_dev);
EFX_ERR(efx, "has been disabled\n");
efx->state = STATE_DISABLED;
} else {
@@ -1884,8 +1885,7 @@ static void efx_reset_work(struct work_struct *data)
}
rtnl_lock();
- if (efx_reset(efx, efx->reset_pending))
- dev_close(efx->net_dev);
+ (void)efx_reset(efx, efx->reset_pending);
rtnl_unlock();
}
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index d294d66fd60..08278e7302b 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1320,7 +1320,9 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
EFX_LOG(efx, "PHY is %d phy_id %d\n", efx->phy_type, efx->mdio.prtad);
- falcon_probe_board(efx, board_rev);
+ rc = falcon_probe_board(efx, board_rev);
+ if (rc)
+ goto fail2;
kfree(nvconfig);
return 0;
diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c
index 5712fddd72f..c7a933a3292 100644
--- a/drivers/net/sfc/falcon_boards.c
+++ b/drivers/net/sfc/falcon_boards.c
@@ -728,15 +728,7 @@ static const struct falcon_board_type board_types[] = {
},
};
-static const struct falcon_board_type falcon_dummy_board = {
- .init = efx_port_dummy_op_int,
- .init_phy = efx_port_dummy_op_void,
- .fini = efx_port_dummy_op_void,
- .set_id_led = efx_port_dummy_op_set_id_led,
- .monitor = efx_port_dummy_op_int,
-};
-
-void falcon_probe_board(struct efx_nic *efx, u16 revision_info)
+int falcon_probe_board(struct efx_nic *efx, u16 revision_info)
{
struct falcon_board *board = falcon_board(efx);
u8 type_id = FALCON_BOARD_TYPE(revision_info);
@@ -754,8 +746,9 @@ void falcon_probe_board(struct efx_nic *efx, u16 revision_info)
(efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC)
? board->type->ref_model : board->type->gen_type,
'A' + board->major, board->minor);
+ return 0;
} else {
EFX_ERR(efx, "unknown board type %d\n", type_id);
- board->type = &falcon_dummy_board;
+ return -ENODEV;
}
}
diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h
index 9351c0331a4..3166bafdfbe 100644
--- a/drivers/net/sfc/nic.h
+++ b/drivers/net/sfc/nic.h
@@ -156,7 +156,7 @@ extern struct efx_nic_type siena_a0_nic_type;
**************************************************************************
*/
-extern void falcon_probe_board(struct efx_nic *efx, u16 revision_info);
+extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info);
/* TX data path */
extern int efx_nic_probe_tx(struct efx_tx_queue *tx_queue);
diff --git a/drivers/net/sfc/siena.c b/drivers/net/sfc/siena.c
index 38dcc42c4f7..e0c46f59d1f 100644
--- a/drivers/net/sfc/siena.c
+++ b/drivers/net/sfc/siena.c
@@ -456,8 +456,17 @@ static int siena_try_update_nic_stats(struct efx_nic *efx)
static void siena_update_nic_stats(struct efx_nic *efx)
{
- while (siena_try_update_nic_stats(efx) == -EAGAIN)
- cpu_relax();
+ int retry;
+
+ /* If we're unlucky enough to read statistics wduring the DMA, wait
+ * up to 10ms for it to finish (typically takes <500us) */
+ for (retry = 0; retry < 100; ++retry) {
+ if (siena_try_update_nic_stats(efx) == 0)
+ return;
+ udelay(100);
+ }
+
+ /* Use the old values instead */
}
static void siena_start_nic_stats(struct efx_nic *efx)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 22cf1c446de..ecc41cffb47 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8633,6 +8633,7 @@ static int tg3_test_msi(struct tg3 *tp)
pci_disable_msi(tp->pdev);
tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
+ tp->napi[0].irq_vec = tp->pdev->irq;
err = tg3_request_irq(tp, 0);
if (err)
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 63be4caec70..5d58abc224f 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -397,4 +397,14 @@ config USB_IPHETH
For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
+config USB_SIERRA_NET
+ tristate "USB-to-WWAN Driver for Sierra Wireless modems"
+ depends on USB_USBNET
+ default y
+ help
+ Choose this option if you have a Sierra Wireless USB-to-WWAN device.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sierra_net.
+
endmenu
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index edb09c0ddf8..b13a279663b 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -24,4 +24,5 @@ obj-$(CONFIG_USB_USBNET) += usbnet.o
obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o
obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o
obj-$(CONFIG_USB_IPHETH) += ipheth.o
+obj-$(CONFIG_USB_SIERRA_NET) += sierra_net.o
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index c8cdb7f30ad..3547cf13d21 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -431,6 +431,7 @@ static const struct driver_info mbm_info = {
.bind = cdc_bind,
.unbind = usbnet_cdc_unbind,
.status = cdc_status,
+ .manage_power = cdc_manage_power,
};
/*-------------------------------------------------------------------------*/
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index fd1033130a8..418825d26f9 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -122,25 +122,25 @@ static int ipheth_alloc_urbs(struct ipheth_device *iphone)
tx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (tx_urb == NULL)
- goto error;
+ goto error_nomem;
rx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (rx_urb == NULL)
- goto error;
+ goto free_tx_urb;
tx_buf = usb_buffer_alloc(iphone->udev,
IPHETH_BUF_SIZE,
GFP_KERNEL,
&tx_urb->transfer_dma);
if (tx_buf == NULL)
- goto error;
+ goto free_rx_urb;
rx_buf = usb_buffer_alloc(iphone->udev,
IPHETH_BUF_SIZE,
GFP_KERNEL,
&rx_urb->transfer_dma);
if (rx_buf == NULL)
- goto error;
+ goto free_tx_buf;
iphone->tx_urb = tx_urb;
@@ -149,13 +149,14 @@ static int ipheth_alloc_urbs(struct ipheth_device *iphone)
iphone->rx_buf = rx_buf;
return 0;
-error:
- usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, rx_buf,
- rx_urb->transfer_dma);
+free_tx_buf:
usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
tx_urb->transfer_dma);
+free_rx_urb:
usb_free_urb(rx_urb);
+free_tx_urb:
usb_free_urb(tx_urb);
+error_nomem:
return -ENOMEM;
}
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 52671ea043a..c4c334d9770 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -145,6 +145,7 @@ static struct usb_device_id usb_klsi_table[] = {
{ USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */
{ USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */
{ USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */
+ { USB_DEVICE(0x07c9, 0xb010) }, /* Allied Telesyn AT-USB10 USB Ethernet Adapter */
{ USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */
{ USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */
{ USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
new file mode 100644
index 00000000000..a44f9e0ea09
--- /dev/null
+++ b/drivers/net/usb/sierra_net.c
@@ -0,0 +1,1001 @@
+/*
+ * USB-to-WWAN Driver for Sierra Wireless modems
+ *
+ * Copyright (C) 2008, 2009, 2010 Paxton Smith, Matthew Safar, Rory Filer
+ * <linux@sierrawireless.com>
+ *
+ * Portions of this based on the cdc_ether driver by David Brownell (2003-2005)
+ * and Ole Andre Vadla Ravnas (ActiveSync) (2006).
+ *
+ * IMPORTANT DISCLAIMER: This driver is not commercially supported by
+ * Sierra Wireless. Use at your own risk.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#define DRIVER_VERSION "v.2.0"
+#define DRIVER_AUTHOR "Paxton Smith, Matthew Safar, Rory Filer"
+#define DRIVER_DESC "USB-to-WWAN Driver for Sierra Wireless modems"
+static const char driver_name[] = "sierra_net";
+
+/* if defined debug messages enabled */
+/*#define DEBUG*/
+
+#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <net/ip.h>
+#include <net/udp.h>
+#include <asm/unaligned.h>
+#include <linux/usb/usbnet.h>
+
+#define SWI_USB_REQUEST_GET_FW_ATTR 0x06
+#define SWI_GET_FW_ATTR_MASK 0x08
+
+/* atomic counter partially included in MAC address to make sure 2 devices
+ * do not end up with the same MAC - concept breaks in case of > 255 ifaces
+ */
+static atomic_t iface_counter = ATOMIC_INIT(0);
+
+/*
+ * SYNC Timer Delay definition used to set the expiry time
+ */
+#define SIERRA_NET_SYNCDELAY (2*HZ)
+
+/* Max. MTU supported. The modem buffers are limited to 1500 */
+#define SIERRA_NET_MAX_SUPPORTED_MTU 1500
+
+/* The SIERRA_NET_USBCTL_BUF_LEN defines a buffer size allocated for control
+ * message reception ... and thus the max. received packet.
+ * (May be the cause for parse_hip returning -EINVAL)
+ */
+#define SIERRA_NET_USBCTL_BUF_LEN 1024
+
+/* list of interface numbers - used for constructing interface lists */
+struct sierra_net_iface_info {
+ const u32 infolen; /* number of interface numbers on list */
+ const u8 *ifaceinfo; /* pointer to the array holding the numbers */
+};
+
+struct sierra_net_info_data {
+ u16 rx_urb_size;
+ struct sierra_net_iface_info whitelist;
+};
+
+/* Private data structure */
+struct sierra_net_data {
+
+ u8 ethr_hdr_tmpl[ETH_HLEN]; /* ethernet header template for rx'd pkts */
+
+ u16 link_up; /* air link up or down */
+ u8 tx_hdr_template[4]; /* part of HIP hdr for tx'd packets */
+
+ u8 sync_msg[4]; /* SYNC message */
+ u8 shdwn_msg[4]; /* Shutdown message */
+
+ /* Backpointer to the container */
+ struct usbnet *usbnet;
+
+ u8 ifnum; /* interface number */
+
+/* Bit masks, must be a power of 2 */
+#define SIERRA_NET_EVENT_RESP_AVAIL 0x01
+#define SIERRA_NET_TIMER_EXPIRY 0x02
+ unsigned long kevent_flags;
+ struct work_struct sierra_net_kevent;
+ struct timer_list sync_timer; /* For retrying SYNC sequence */
+};
+
+struct param {
+ int is_present;
+ union {
+ void *ptr;
+ u32 dword;
+ u16 word;
+ u8 byte;
+ };
+};
+
+/* HIP message type */
+#define SIERRA_NET_HIP_EXTENDEDID 0x7F
+#define SIERRA_NET_HIP_HSYNC_ID 0x60 /* Modem -> host */
+#define SIERRA_NET_HIP_RESTART_ID 0x62 /* Modem -> host */
+#define SIERRA_NET_HIP_MSYNC_ID 0x20 /* Host -> modem */
+#define SIERRA_NET_HIP_SHUTD_ID 0x26 /* Host -> modem */
+
+#define SIERRA_NET_HIP_EXT_IP_IN_ID 0x0202
+#define SIERRA_NET_HIP_EXT_IP_OUT_ID 0x0002
+
+/* 3G UMTS Link Sense Indication definitions */
+#define SIERRA_NET_HIP_LSI_UMTSID 0x78
+
+/* Reverse Channel Grant Indication HIP message */
+#define SIERRA_NET_HIP_RCGI 0x64
+
+/* LSI Protocol types */
+#define SIERRA_NET_PROTOCOL_UMTS 0x01
+/* LSI Coverage */
+#define SIERRA_NET_COVERAGE_NONE 0x00
+#define SIERRA_NET_COVERAGE_NOPACKET 0x01
+
+/* LSI Session */
+#define SIERRA_NET_SESSION_IDLE 0x00
+/* LSI Link types */
+#define SIERRA_NET_AS_LINK_TYPE_IPv4 0x00
+
+struct lsi_umts {
+ u8 protocol;
+ u8 unused1;
+ __be16 length;
+ /* eventually use a union for the rest - assume umts for now */
+ u8 coverage;
+ u8 unused2[41];
+ u8 session_state;
+ u8 unused3[33];
+ u8 link_type;
+ u8 pdp_addr_len; /* NW-supplied PDP address len */
+ u8 pdp_addr[16]; /* NW-supplied PDP address (bigendian)) */
+ u8 unused4[23];
+ u8 dns1_addr_len; /* NW-supplied 1st DNS address len (bigendian) */
+ u8 dns1_addr[16]; /* NW-supplied 1st DNS address */
+ u8 dns2_addr_len; /* NW-supplied 2nd DNS address len */
+ u8 dns2_addr[16]; /* NW-supplied 2nd DNS address (bigendian)*/
+ u8 wins1_addr_len; /* NW-supplied 1st Wins address len */
+ u8 wins1_addr[16]; /* NW-supplied 1st Wins address (bigendian)*/
+ u8 wins2_addr_len; /* NW-supplied 2nd Wins address len */
+ u8 wins2_addr[16]; /* NW-supplied 2nd Wins address (bigendian) */
+ u8 unused5[4];
+ u8 gw_addr_len; /* NW-supplied GW address len */
+ u8 gw_addr[16]; /* NW-supplied GW address (bigendian) */
+ u8 reserved[8];
+} __attribute__ ((packed));
+
+#define SIERRA_NET_LSI_COMMON_LEN 4
+#define SIERRA_NET_LSI_UMTS_LEN (sizeof(struct lsi_umts))
+#define SIERRA_NET_LSI_UMTS_STATUS_LEN \
+ (SIERRA_NET_LSI_UMTS_LEN - SIERRA_NET_LSI_COMMON_LEN)
+
+/* Forward definitions */
+static void sierra_sync_timer(unsigned long syncdata);
+static int sierra_net_change_mtu(struct net_device *net, int new_mtu);
+
+/* Our own net device operations structure */
+static const struct net_device_ops sierra_net_device_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = sierra_net_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+/* get private data associated with passed in usbnet device */
+static inline struct sierra_net_data *sierra_net_get_private(struct usbnet *dev)
+{
+ return (struct sierra_net_data *)dev->data[0];
+}
+
+/* set private data associated with passed in usbnet device */
+static inline void sierra_net_set_private(struct usbnet *dev,
+ struct sierra_net_data *priv)
+{
+ dev->data[0] = (unsigned long)priv;
+}
+
+/* is packet IPv4 */
+static inline int is_ip(struct sk_buff *skb)
+{
+ return (skb->protocol == cpu_to_be16(ETH_P_IP));
+}
+
+/*
+ * check passed in packet and make sure that:
+ * - it is linear (no scatter/gather)
+ * - it is ethernet (mac_header properly set)
+ */
+static int check_ethip_packet(struct sk_buff *skb, struct usbnet *dev)
+{
+ skb_reset_mac_header(skb); /* ethernet header */
+
+ if (skb_is_nonlinear(skb)) {
+ netdev_err(dev->net, "Non linear buffer-dropping\n");
+ return 0;
+ }
+
+ if (!pskb_may_pull(skb, ETH_HLEN))
+ return 0;
+ skb->protocol = eth_hdr(skb)->h_proto;
+
+ return 1;
+}
+
+static const u8 *save16bit(struct param *p, const u8 *datap)
+{
+ p->is_present = 1;
+ p->word = get_unaligned_be16(datap);
+ return datap + sizeof(p->word);
+}
+
+static const u8 *save8bit(struct param *p, const u8 *datap)
+{
+ p->is_present = 1;
+ p->byte = *datap;
+ return datap + sizeof(p->byte);
+}
+
+/*----------------------------------------------------------------------------*
+ * BEGIN HIP *
+ *----------------------------------------------------------------------------*/
+/* HIP header */
+#define SIERRA_NET_HIP_HDR_LEN 4
+/* Extended HIP header */
+#define SIERRA_NET_HIP_EXT_HDR_LEN 6
+
+struct hip_hdr {
+ int hdrlen;
+ struct param payload_len;
+ struct param msgid;
+ struct param msgspecific;
+ struct param extmsgid;
+};
+
+static int parse_hip(const u8 *buf, const u32 buflen, struct hip_hdr *hh)
+{
+ const u8 *curp = buf;
+ int padded;
+
+ if (buflen < SIERRA_NET_HIP_HDR_LEN)
+ return -EPROTO;
+
+ curp = save16bit(&hh->payload_len, curp);
+ curp = save8bit(&hh->msgid, curp);
+ curp = save8bit(&hh->msgspecific, curp);
+
+ padded = hh->msgid.byte & 0x80;
+ hh->msgid.byte &= 0x7F; /* 7 bits */
+
+ hh->extmsgid.is_present = (hh->msgid.byte == SIERRA_NET_HIP_EXTENDEDID);
+ if (hh->extmsgid.is_present) {
+ if (buflen < SIERRA_NET_HIP_EXT_HDR_LEN)
+ return -EPROTO;
+
+ hh->payload_len.word &= 0x3FFF; /* 14 bits */
+
+ curp = save16bit(&hh->extmsgid, curp);
+ hh->extmsgid.word &= 0x03FF; /* 10 bits */
+
+ hh->hdrlen = SIERRA_NET_HIP_EXT_HDR_LEN;
+ } else {
+ hh->payload_len.word &= 0x07FF; /* 11 bits */
+ hh->hdrlen = SIERRA_NET_HIP_HDR_LEN;
+ }
+
+ if (padded) {
+ hh->hdrlen++;
+ hh->payload_len.word--;
+ }
+
+ /* if real packet shorter than the claimed length */
+ if (buflen < (hh->hdrlen + hh->payload_len.word))
+ return -EINVAL;
+
+ return 0;
+}
+
+static void build_hip(u8 *buf, const u16 payloadlen,
+ struct sierra_net_data *priv)
+{
+ /* the following doesn't have the full functionality. We
+ * currently build only one kind of header, so it is faster this way
+ */
+ put_unaligned_be16(payloadlen, buf);
+ memcpy(buf+2, priv->tx_hdr_template, sizeof(priv->tx_hdr_template));
+}
+/*----------------------------------------------------------------------------*
+ * END HIP *
+ *----------------------------------------------------------------------------*/
+
+static int sierra_net_send_cmd(struct usbnet *dev,
+ u8 *cmd, int cmdlen, const char * cmd_name)
+{
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+ int status;
+
+ status = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+ USB_CDC_SEND_ENCAPSULATED_COMMAND,
+ USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE, 0,
+ priv->ifnum, cmd, cmdlen, USB_CTRL_SET_TIMEOUT);
+
+ if (status != cmdlen && status != -ENODEV)
+ netdev_err(dev->net, "Submit %s failed %d\n", cmd_name, status);
+
+ return status;
+}
+
+static int sierra_net_send_sync(struct usbnet *dev)
+{
+ int status;
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ status = sierra_net_send_cmd(dev, priv->sync_msg,
+ sizeof(priv->sync_msg), "SYNC");
+
+ return status;
+}
+
+static void sierra_net_set_ctx_index(struct sierra_net_data *priv, u8 ctx_ix)
+{
+ dev_dbg(&(priv->usbnet->udev->dev), "%s %d", __func__, ctx_ix);
+ priv->tx_hdr_template[0] = 0x3F;
+ priv->tx_hdr_template[1] = ctx_ix;
+ *((u16 *)&priv->tx_hdr_template[2]) =
+ cpu_to_be16(SIERRA_NET_HIP_EXT_IP_OUT_ID);
+}
+
+static inline int sierra_net_is_valid_addrlen(u8 len)
+{
+ return (len == sizeof(struct in_addr));
+}
+
+static int sierra_net_parse_lsi(struct usbnet *dev, char *data, int datalen)
+{
+ struct lsi_umts *lsi = (struct lsi_umts *)data;
+
+ if (datalen < sizeof(struct lsi_umts)) {
+ netdev_err(dev->net, "%s: Data length %d, exp %Zu\n",
+ __func__, datalen,
+ sizeof(struct lsi_umts));
+ return -1;
+ }
+
+ if (lsi->length != cpu_to_be16(SIERRA_NET_LSI_UMTS_STATUS_LEN)) {
+ netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
+ __func__, be16_to_cpu(lsi->length),
+ (u32)SIERRA_NET_LSI_UMTS_STATUS_LEN);
+ return -1;
+ }
+
+ /* Validate the protocol - only support UMTS for now */
+ if (lsi->protocol != SIERRA_NET_PROTOCOL_UMTS) {
+ netdev_err(dev->net, "Protocol unsupported, 0x%02x\n",
+ lsi->protocol);
+ return -1;
+ }
+
+ /* Validate the link type */
+ if (lsi->link_type != SIERRA_NET_AS_LINK_TYPE_IPv4) {
+ netdev_err(dev->net, "Link type unsupported: 0x%02x\n",
+ lsi->link_type);
+ return -1;
+ }
+
+ /* Validate the coverage */
+ if (lsi->coverage == SIERRA_NET_COVERAGE_NONE
+ || lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
+ netdev_err(dev->net, "No coverage, 0x%02x\n", lsi->coverage);
+ return 0;
+ }
+
+ /* Validate the session state */
+ if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
+ netdev_err(dev->net, "Session idle, 0x%02x\n",
+ lsi->session_state);
+ return 0;
+ }
+
+ /* Set link_sense true */
+ return 1;
+}
+
+static void sierra_net_handle_lsi(struct usbnet *dev, char *data,
+ struct hip_hdr *hh)
+{
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+ int link_up;
+
+ link_up = sierra_net_parse_lsi(dev, data + hh->hdrlen,
+ hh->payload_len.word);
+ if (link_up < 0) {
+ netdev_err(dev->net, "Invalid LSI\n");
+ return;
+ }
+ if (link_up) {
+ sierra_net_set_ctx_index(priv, hh->msgspecific.byte);
+ priv->link_up = 1;
+ netif_carrier_on(dev->net);
+ } else {
+ priv->link_up = 0;
+ netif_carrier_off(dev->net);
+ }
+}
+
+static void sierra_net_dosync(struct usbnet *dev)
+{
+ int status;
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ /* tell modem we are ready */
+ status = sierra_net_send_sync(dev);
+ if (status < 0)
+ netdev_err(dev->net,
+ "Send SYNC failed, status %d\n", status);
+ status = sierra_net_send_sync(dev);
+ if (status < 0)
+ netdev_err(dev->net,
+ "Send SYNC failed, status %d\n", status);
+
+ /* Now, start a timer and make sure we get the Restart Indication */
+ priv->sync_timer.function = sierra_sync_timer;
+ priv->sync_timer.data = (unsigned long) dev;
+ priv->sync_timer.expires = jiffies + SIERRA_NET_SYNCDELAY;
+ add_timer(&priv->sync_timer);
+}
+
+static void sierra_net_kevent(struct work_struct *work)
+{
+ struct sierra_net_data *priv =
+ container_of(work, struct sierra_net_data, sierra_net_kevent);
+ struct usbnet *dev = priv->usbnet;
+ int len;
+ int err;
+ u8 *buf;
+ u8 ifnum;
+
+ if (test_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags)) {
+ clear_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags);
+
+ /* Query the modem for the LSI message */
+ buf = kzalloc(SIERRA_NET_USBCTL_BUF_LEN, GFP_KERNEL);
+ if (!buf) {
+ netdev_err(dev->net,
+ "failed to allocate buf for LS msg\n");
+ return;
+ }
+ ifnum = priv->ifnum;
+ len = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+ USB_CDC_GET_ENCAPSULATED_RESPONSE,
+ USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE,
+ 0, ifnum, buf, SIERRA_NET_USBCTL_BUF_LEN,
+ USB_CTRL_SET_TIMEOUT);
+
+ if (len < 0) {
+ netdev_err(dev->net,
+ "usb_control_msg failed, status %d\n", len);
+ } else {
+ struct hip_hdr hh;
+
+ dev_dbg(&dev->udev->dev, "%s: Received status message,"
+ " %04x bytes", __func__, len);
+
+ err = parse_hip(buf, len, &hh);
+ if (err) {
+ netdev_err(dev->net, "%s: Bad packet,"
+ " parse result %d\n", __func__, err);
+ kfree(buf);
+ return;
+ }
+
+ /* Validate packet length */
+ if (len != hh.hdrlen + hh.payload_len.word) {
+ netdev_err(dev->net, "%s: Bad packet, received"
+ " %d, expected %d\n", __func__, len,
+ hh.hdrlen + hh.payload_len.word);
+ kfree(buf);
+ return;
+ }
+
+ /* Switch on received message types */
+ switch (hh.msgid.byte) {
+ case SIERRA_NET_HIP_LSI_UMTSID:
+ dev_dbg(&dev->udev->dev, "LSI for ctx:%d",
+ hh.msgspecific.byte);
+ sierra_net_handle_lsi(dev, buf, &hh);
+ break;
+ case SIERRA_NET_HIP_RESTART_ID:
+ dev_dbg(&dev->udev->dev, "Restart reported: %d,"
+ " stopping sync timer",
+ hh.msgspecific.byte);
+ /* Got sync resp - stop timer & clear mask */
+ del_timer_sync(&priv->sync_timer);
+ clear_bit(SIERRA_NET_TIMER_EXPIRY,
+ &priv->kevent_flags);
+ break;
+ case SIERRA_NET_HIP_HSYNC_ID:
+ dev_dbg(&dev->udev->dev, "SYNC received");
+ err = sierra_net_send_sync(dev);
+ if (err < 0)
+ netdev_err(dev->net,
+ "Send SYNC failed %d\n", err);
+ break;
+ case SIERRA_NET_HIP_EXTENDEDID:
+ netdev_err(dev->net, "Unrecognized HIP msg, "
+ "extmsgid 0x%04x\n", hh.extmsgid.word);
+ break;
+ case SIERRA_NET_HIP_RCGI:
+ /* Ignored */
+ break;
+ default:
+ netdev_err(dev->net, "Unrecognized HIP msg, "
+ "msgid 0x%02x\n", hh.msgid.byte);
+ break;
+ }
+ }
+ kfree(buf);
+ }
+ /* The sync timer bit might be set */
+ if (test_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags)) {
+ clear_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags);
+ dev_dbg(&dev->udev->dev, "Deferred sync timer expiry");
+ sierra_net_dosync(priv->usbnet);
+ }
+
+ if (priv->kevent_flags)
+ dev_dbg(&dev->udev->dev, "sierra_net_kevent done, "
+ "kevent_flags = 0x%lx", priv->kevent_flags);
+}
+
+static void sierra_net_defer_kevent(struct usbnet *dev, int work)
+{
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+ set_bit(work, &priv->kevent_flags);
+ schedule_work(&priv->sierra_net_kevent);
+}
+
+/*
+ * Sync Retransmit Timer Handler. On expiry, kick the work queue
+ */
+void sierra_sync_timer(unsigned long syncdata)
+{
+ struct usbnet *dev = (struct usbnet *)syncdata;
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+ /* Kick the tasklet */
+ sierra_net_defer_kevent(dev, SIERRA_NET_TIMER_EXPIRY);
+}
+
+static void sierra_net_status(struct usbnet *dev, struct urb *urb)
+{
+ struct usb_cdc_notification *event;
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ if (urb->actual_length < sizeof *event)
+ return;
+
+ /* Add cases to handle other standard notifications. */
+ event = urb->transfer_buffer;
+ switch (event->bNotificationType) {
+ case USB_CDC_NOTIFY_NETWORK_CONNECTION:
+ case USB_CDC_NOTIFY_SPEED_CHANGE:
+ /* USB 305 sends those */
+ break;
+ case USB_CDC_NOTIFY_RESPONSE_AVAILABLE:
+ sierra_net_defer_kevent(dev, SIERRA_NET_EVENT_RESP_AVAIL);
+ break;
+ default:
+ netdev_err(dev->net, ": unexpected notification %02x!\n",
+ event->bNotificationType);
+ break;
+ }
+}
+
+static void sierra_net_get_drvinfo(struct net_device *net,
+ struct ethtool_drvinfo *info)
+{
+ /* Inherit standard device info */
+ usbnet_get_drvinfo(net, info);
+ strncpy(info->driver, driver_name, sizeof info->driver);
+ strncpy(info->version, DRIVER_VERSION, sizeof info->version);
+}
+
+static u32 sierra_net_get_link(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ /* Report link is down whenever the interface is down */
+ return sierra_net_get_private(dev)->link_up && netif_running(net);
+}
+
+static struct ethtool_ops sierra_net_ethtool_ops = {
+ .get_drvinfo = sierra_net_get_drvinfo,
+ .get_link = sierra_net_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+/* MTU can not be more than 1500 bytes, enforce it. */
+static int sierra_net_change_mtu(struct net_device *net, int new_mtu)
+{
+ if (new_mtu > SIERRA_NET_MAX_SUPPORTED_MTU)
+ return -EINVAL;
+
+ return usbnet_change_mtu(net, new_mtu);
+}
+
+static int is_whitelisted(const u8 ifnum,
+ const struct sierra_net_iface_info *whitelist)
+{
+ if (whitelist) {
+ const u8 *list = whitelist->ifaceinfo;
+ int i;
+
+ for (i = 0; i < whitelist->infolen; i++) {
+ if (list[i] == ifnum)
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap)
+{
+ int result = 0;
+ u16 *attrdata;
+
+ attrdata = kmalloc(sizeof(*attrdata), GFP_KERNEL);
+ if (!attrdata)
+ return -ENOMEM;
+
+ result = usb_control_msg(
+ dev->udev,
+ usb_rcvctrlpipe(dev->udev, 0),
+ /* _u8 vendor specific request */
+ SWI_USB_REQUEST_GET_FW_ATTR,
+ USB_DIR_IN | USB_TYPE_VENDOR, /* __u8 request type */
+ 0x0000, /* __u16 value not used */
+ 0x0000, /* __u16 index not used */
+ attrdata, /* char *data */
+ sizeof(*attrdata), /* __u16 size */
+ USB_CTRL_SET_TIMEOUT); /* int timeout */
+
+ if (result < 0) {
+ kfree(attrdata);
+ return -EIO;
+ }
+
+ *datap = *attrdata;
+
+ kfree(attrdata);
+ return result;
+}
+
+/*
+ * collects the bulk endpoints, the status endpoint.
+ */
+static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ u8 ifacenum;
+ u8 numendpoints;
+ u16 fwattr = 0;
+ int status;
+ struct ethhdr *eth;
+ struct sierra_net_data *priv;
+ static const u8 sync_tmplate[sizeof(priv->sync_msg)] = {
+ 0x00, 0x00, SIERRA_NET_HIP_MSYNC_ID, 0x00};
+ static const u8 shdwn_tmplate[sizeof(priv->shdwn_msg)] = {
+ 0x00, 0x00, SIERRA_NET_HIP_SHUTD_ID, 0x00};
+
+ struct sierra_net_info_data *data =
+ (struct sierra_net_info_data *)dev->driver_info->data;
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ ifacenum = intf->cur_altsetting->desc.bInterfaceNumber;
+ /* We only accept certain interfaces */
+ if (!is_whitelisted(ifacenum, &data->whitelist)) {
+ dev_dbg(&dev->udev->dev, "Ignoring interface: %d", ifacenum);
+ return -ENODEV;
+ }
+ numendpoints = intf->cur_altsetting->desc.bNumEndpoints;
+ /* We have three endpoints, bulk in and out, and a status */
+ if (numendpoints != 3) {
+ dev_err(&dev->udev->dev, "Expected 3 endpoints, found: %d",
+ numendpoints);
+ return -ENODEV;
+ }
+ /* Status endpoint set in usbnet_get_endpoints() */
+ dev->status = NULL;
+ status = usbnet_get_endpoints(dev, intf);
+ if (status < 0) {
+ dev_err(&dev->udev->dev, "Error in usbnet_get_endpoints (%d)",
+ status);
+ return -ENODEV;
+ }
+ /* Initialize sierra private data */
+ priv = kzalloc(sizeof *priv, GFP_KERNEL);
+ if (!priv) {
+ dev_err(&dev->udev->dev, "No memory");
+ return -ENOMEM;
+ }
+
+ priv->usbnet = dev;
+ priv->ifnum = ifacenum;
+ dev->net->netdev_ops = &sierra_net_device_ops;
+
+ /* change MAC addr to include, ifacenum, and to be unique */
+ dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
+ dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
+
+ /* we will have to manufacture ethernet headers, prepare template */
+ eth = (struct ethhdr *)priv->ethr_hdr_tmpl;
+ memcpy(&eth->h_dest, dev->net->dev_addr, ETH_ALEN);
+ eth->h_proto = cpu_to_be16(ETH_P_IP);
+
+ /* prepare shutdown message template */
+ memcpy(priv->shdwn_msg, shdwn_tmplate, sizeof(priv->shdwn_msg));
+ /* set context index initially to 0 - prepares tx hdr template */
+ sierra_net_set_ctx_index(priv, 0);
+
+ /* decrease the rx_urb_size and max_tx_size to 4k on USB 1.1 */
+ dev->rx_urb_size = data->rx_urb_size;
+ if (dev->udev->speed != USB_SPEED_HIGH)
+ dev->rx_urb_size = min_t(size_t, 4096, data->rx_urb_size);
+
+ dev->net->hard_header_len += SIERRA_NET_HIP_EXT_HDR_LEN;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+
+ /* Set up the netdev */
+ dev->net->flags |= IFF_NOARP;
+ dev->net->ethtool_ops = &sierra_net_ethtool_ops;
+ netif_carrier_off(dev->net);
+
+ sierra_net_set_private(dev, priv);
+
+ priv->kevent_flags = 0;
+
+ /* Use the shared workqueue */
+ INIT_WORK(&priv->sierra_net_kevent, sierra_net_kevent);
+
+ /* Only need to do this once */
+ init_timer(&priv->sync_timer);
+
+ /* verify fw attributes */
+ status = sierra_net_get_fw_attr(dev, &fwattr);
+ dev_dbg(&dev->udev->dev, "Fw attr: %x\n", fwattr);
+
+ /* test whether firmware supports DHCP */
+ if (!(status == sizeof(fwattr) && (fwattr & SWI_GET_FW_ATTR_MASK))) {
+ /* found incompatible firmware version */
+ dev_err(&dev->udev->dev, "Incompatible driver and firmware"
+ " versions\n");
+ kfree(priv);
+ return -ENODEV;
+ }
+ /* prepare sync message from template */
+ memcpy(priv->sync_msg, sync_tmplate, sizeof(priv->sync_msg));
+
+ return 0;
+}
+
+static void sierra_net_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int status;
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ /* Kill the timer then flush the work queue */
+ del_timer_sync(&priv->sync_timer);
+
+ flush_scheduled_work();
+
+ /* tell modem we are going away */
+ status = sierra_net_send_cmd(dev, priv->shdwn_msg,
+ sizeof(priv->shdwn_msg), "Shutdown");
+ if (status < 0)
+ netdev_err(dev->net,
+ "usb_control_msg failed, status %d\n", status);
+
+ sierra_net_set_private(dev, NULL);
+
+ kfree(priv);
+}
+
+static struct sk_buff *sierra_net_skb_clone(struct usbnet *dev,
+ struct sk_buff *skb, int len)
+{
+ struct sk_buff *new_skb;
+
+ /* clone skb */
+ new_skb = skb_clone(skb, GFP_ATOMIC);
+
+ /* remove len bytes from original */
+ skb_pull(skb, len);
+
+ /* trim next packet to it's length */
+ if (new_skb) {
+ skb_trim(new_skb, len);
+ } else {
+ if (netif_msg_rx_err(dev))
+ netdev_err(dev->net, "failed to get skb\n");
+ dev->net->stats.rx_dropped++;
+ }
+
+ return new_skb;
+}
+
+/* ---------------------------- Receive data path ----------------------*/
+static int sierra_net_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ int err;
+ struct hip_hdr hh;
+ struct sk_buff *new_skb;
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ /* could contain multiple packets */
+ while (likely(skb->len)) {
+ err = parse_hip(skb->data, skb->len, &hh);
+ if (err) {
+ if (netif_msg_rx_err(dev))
+ netdev_err(dev->net, "Invalid HIP header %d\n",
+ err);
+ /* dev->net->stats.rx_errors incremented by caller */
+ dev->net->stats.rx_length_errors++;
+ return 0;
+ }
+
+ /* Validate Extended HIP header */
+ if (!hh.extmsgid.is_present
+ || hh.extmsgid.word != SIERRA_NET_HIP_EXT_IP_IN_ID) {
+ if (netif_msg_rx_err(dev))
+ netdev_err(dev->net, "HIP/ETH: Invalid pkt\n");
+
+ dev->net->stats.rx_frame_errors++;
+ /* dev->net->stats.rx_errors incremented by caller */;
+ return 0;
+ }
+
+ skb_pull(skb, hh.hdrlen);
+
+ /* We are going to accept this packet, prepare it */
+ memcpy(skb->data, sierra_net_get_private(dev)->ethr_hdr_tmpl,
+ ETH_HLEN);
+
+ /* Last packet in batch handled by usbnet */
+ if (hh.payload_len.word == skb->len)
+ return 1;
+
+ new_skb = sierra_net_skb_clone(dev, skb, hh.payload_len.word);
+ if (new_skb)
+ usbnet_skb_return(dev, new_skb);
+
+ } /* while */
+
+ return 0;
+}
+
+/* ---------------------------- Transmit data path ----------------------*/
+struct sk_buff *sierra_net_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags)
+{
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+ u16 len;
+ bool need_tail;
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+ if (priv->link_up && check_ethip_packet(skb, dev) && is_ip(skb)) {
+ /* enough head room as is? */
+ if (SIERRA_NET_HIP_EXT_HDR_LEN <= skb_headroom(skb)) {
+ /* Save the Eth/IP length and set up HIP hdr */
+ len = skb->len;
+ skb_push(skb, SIERRA_NET_HIP_EXT_HDR_LEN);
+ /* Handle ZLP issue */
+ need_tail = ((len + SIERRA_NET_HIP_EXT_HDR_LEN)
+ % dev->maxpacket == 0);
+ if (need_tail) {
+ if (unlikely(skb_tailroom(skb) == 0)) {
+ netdev_err(dev->net, "tx_fixup:"
+ "no room for packet\n");
+ dev_kfree_skb_any(skb);
+ return NULL;
+ } else {
+ skb->data[skb->len] = 0;
+ __skb_put(skb, 1);
+ len = len + 1;
+ }
+ }
+ build_hip(skb->data, len, priv);
+ return skb;
+ } else {
+ /*
+ * compensate in the future if necessary
+ */
+ netdev_err(dev->net, "tx_fixup: no room for HIP\n");
+ } /* headroom */
+ }
+
+ if (!priv->link_up)
+ dev->net->stats.tx_carrier_errors++;
+
+ /* tx_dropped incremented by usbnet */
+
+ /* filter the packet out, release it */
+ dev_kfree_skb_any(skb);
+ return NULL;
+}
+
+static const u8 sierra_net_ifnum_list[] = { 7, 10, 11 };
+static const struct sierra_net_info_data sierra_net_info_data_68A3 = {
+ .rx_urb_size = 8 * 1024,
+ .whitelist = {
+ .infolen = ARRAY_SIZE(sierra_net_ifnum_list),
+ .ifaceinfo = sierra_net_ifnum_list
+ }
+};
+
+static const struct driver_info sierra_net_info_68A3 = {
+ .description = "Sierra Wireless USB-to-WWAN Modem",
+ .flags = FLAG_WWAN | FLAG_SEND_ZLP,
+ .bind = sierra_net_bind,
+ .unbind = sierra_net_unbind,
+ .status = sierra_net_status,
+ .rx_fixup = sierra_net_rx_fixup,
+ .tx_fixup = sierra_net_tx_fixup,
+ .data = (unsigned long)&sierra_net_info_data_68A3,
+};
+
+static const struct usb_device_id products[] = {
+ {USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless USB-to-WWAN modem */
+ .driver_info = (unsigned long) &sierra_net_info_68A3},
+
+ {}, /* last item */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+/* We are based on usbnet, so let it handle the USB driver specifics */
+static struct usb_driver sierra_net_driver = {
+ .name = "sierra_net",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .no_dynamic_id = 1,
+};
+
+static int __init sierra_net_init(void)
+{
+ BUILD_BUG_ON(FIELD_SIZEOF(struct usbnet, data)
+ < sizeof(struct cdc_state));
+
+ return usb_register(&sierra_net_driver);
+}
+
+static void __exit sierra_net_exit(void)
+{
+ usb_deregister(&sierra_net_driver);
+}
+
+module_exit(sierra_net_exit);
+module_init(sierra_net_init);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-18 09:23:06 +0000