diff options
Diffstat (limited to 'drivers/net/e1000e/82571.c')
| -rw-r--r-- | drivers/net/e1000e/82571.c | 99 |
1 files changed, 90 insertions, 9 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c index 6c01a2072c87..b53b40ba88a8 100644 --- a/drivers/net/e1000e/82571.c +++ b/drivers/net/e1000e/82571.c @@ -71,6 +71,7 @@ static s32 e1000_setup_link_82571(struct e1000_hw *hw); static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw); static bool e1000_check_mng_mode_82574(struct e1000_hw *hw); static s32 e1000_led_on_82574(struct e1000_hw *hw); +static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw); /** * e1000_init_phy_params_82571 - Init PHY func ptrs. @@ -212,6 +213,9 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter) struct e1000_hw *hw = &adapter->hw; struct e1000_mac_info *mac = &hw->mac; struct e1000_mac_operations *func = &mac->ops; + u32 swsm = 0; + u32 swsm2 = 0; + bool force_clear_smbi = false; /* Set media type */ switch (adapter->pdev->device) { @@ -276,6 +280,50 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter) break; } + /* + * Ensure that the inter-port SWSM.SMBI lock bit is clear before + * first NVM or PHY acess. This should be done for single-port + * devices, and for one port only on dual-port devices so that + * for those devices we can still use the SMBI lock to synchronize + * inter-port accesses to the PHY & NVM. + */ + switch (hw->mac.type) { + case e1000_82571: + case e1000_82572: + swsm2 = er32(SWSM2); + + if (!(swsm2 & E1000_SWSM2_LOCK)) { + /* Only do this for the first interface on this card */ + ew32(SWSM2, + swsm2 | E1000_SWSM2_LOCK); + force_clear_smbi = true; + } else + force_clear_smbi = false; + break; + default: + force_clear_smbi = true; + break; + } + + if (force_clear_smbi) { + /* Make sure SWSM.SMBI is clear */ + swsm = er32(SWSM); + if (swsm & E1000_SWSM_SMBI) { + /* This bit should not be set on a first interface, and + * indicates that the bootagent or EFI code has + * improperly left this bit enabled + */ + hw_dbg(hw, "Please update your 82571 Bootagent\n"); + } + ew32(SWSM, swsm & ~E1000_SWSM_SMBI); + } + + /* + * Initialze device specific counter of SMBI acquisition + * timeouts. + */ + hw->dev_spec.e82571.smb_counter = 0; + return 0; } @@ -341,8 +389,10 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter) 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; + if (!(eeprom_data & NVM_WORD1A_ASPM_MASK)) { + adapter->flags |= FLAG_HAS_JUMBO_FRAMES; + adapter->max_hw_frame_size = DEFAULT_JUMBO; + } } break; default: @@ -411,11 +461,37 @@ static s32 e1000_get_phy_id_82571(struct e1000_hw *hw) static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw) { u32 swsm; - s32 timeout = hw->nvm.word_size + 1; + s32 sw_timeout = hw->nvm.word_size + 1; + s32 fw_timeout = hw->nvm.word_size + 1; s32 i = 0; + /* + * If we have timedout 3 times on trying to acquire + * the inter-port SMBI semaphore, there is old code + * operating on the other port, and it is not + * releasing SMBI. Modify the number of times that + * we try for the semaphore to interwork with this + * older code. + */ + if (hw->dev_spec.e82571.smb_counter > 2) + sw_timeout = 1; + + /* Get the SW semaphore */ + while (i < sw_timeout) { + swsm = er32(SWSM); + if (!(swsm & E1000_SWSM_SMBI)) + break; + + udelay(50); + i++; + } + + if (i == sw_timeout) { + hw_dbg(hw, "Driver can't access device - SMBI bit is set.\n"); + hw->dev_spec.e82571.smb_counter++; + } /* Get the FW semaphore. */ - for (i = 0; i < timeout; i++) { + for (i = 0; i < fw_timeout; i++) { swsm = er32(SWSM); ew32(SWSM, swsm | E1000_SWSM_SWESMBI); @@ -426,9 +502,9 @@ static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw) udelay(50); } - if (i == timeout) { + if (i == fw_timeout) { /* Release semaphores */ - e1000e_put_hw_semaphore(hw); + e1000_put_hw_semaphore_82571(hw); hw_dbg(hw, "Driver can't access the NVM\n"); return -E1000_ERR_NVM; } @@ -447,9 +523,7 @@ static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw) u32 swsm; swsm = er32(SWSM); - - swsm &= ~E1000_SWSM_SWESMBI; - + swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI); ew32(SWSM, swsm); } @@ -1585,6 +1659,7 @@ static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw) static struct e1000_mac_operations e82571_mac_ops = { /* .check_mng_mode: mac type dependent */ /* .check_for_link: media type dependent */ + .id_led_init = e1000e_id_led_init, .cleanup_led = e1000e_cleanup_led_generic, .clear_hw_cntrs = e1000_clear_hw_cntrs_82571, .get_bus_info = e1000e_get_bus_info_pcie, @@ -1596,6 +1671,7 @@ static struct e1000_mac_operations e82571_mac_ops = { .init_hw = e1000_init_hw_82571, .setup_link = e1000_setup_link_82571, /* .setup_physical_interface: media type dependent */ + .setup_led = e1000e_setup_led_generic, }; static struct e1000_phy_operations e82_phy_ops_igp = { @@ -1672,6 +1748,7 @@ struct e1000_info e1000_82571_info = { | FLAG_TARC_SPEED_MODE_BIT /* errata */ | FLAG_APME_CHECK_PORT_B, .pba = 38, + .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_82571, .mac_ops = &e82571_mac_ops, .phy_ops = &e82_phy_ops_igp, @@ -1688,6 +1765,7 @@ struct e1000_info e1000_82572_info = { | FLAG_HAS_CTRLEXT_ON_LOAD | FLAG_TARC_SPEED_MODE_BIT, /* errata */ .pba = 38, + .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_82571, .mac_ops = &e82571_mac_ops, .phy_ops = &e82_phy_ops_igp, @@ -1706,6 +1784,7 @@ struct e1000_info e1000_82573_info = { | FLAG_HAS_ERT | FLAG_HAS_SWSM_ON_LOAD, .pba = 20, + .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN, .get_variants = e1000_get_variants_82571, .mac_ops = &e82571_mac_ops, .phy_ops = &e82_phy_ops_m88, @@ -1724,6 +1803,7 @@ struct e1000_info e1000_82574_info = { | FLAG_HAS_AMT | FLAG_HAS_CTRLEXT_ON_LOAD, .pba = 20, + .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN, .get_variants = e1000_get_variants_82571, .mac_ops = &e82571_mac_ops, .phy_ops = &e82_phy_ops_bm, @@ -1740,6 +1820,7 @@ struct e1000_info e1000_82583_info = { | FLAG_HAS_AMT | FLAG_HAS_CTRLEXT_ON_LOAD, .pba = 20, + .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_82571, .mac_ops = &e82571_mac_ops, .phy_ops = &e82_phy_ops_bm, |