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path: root/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
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Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c216
1 files changed, 82 insertions, 134 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
index 40dd798e1290..e88305d5d18d 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
@@ -1,7 +1,7 @@
/*******************************************************************************
Intel 10 Gigabit PCI Express Linux driver
- Copyright(c) 1999 - 2013 Intel Corporation.
+ Copyright(c) 1999 - 2014 Intel Corporation.
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
@@ -99,8 +99,8 @@ static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
/* Call adapter stop to disable tx/rx and clear interrupts */
status = hw->mac.ops.stop_adapter(hw);
- if (status != 0)
- goto reset_hw_out;
+ if (status)
+ return status;
/* flush pending Tx transactions */
ixgbe_clear_tx_pending(hw);
@@ -168,7 +168,6 @@ mac_reset_top:
hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
&hw->mac.wwpn_prefix);
-reset_hw_out:
return status;
}
@@ -182,40 +181,13 @@ reset_hw_out:
**/
static s32 ixgbe_start_hw_X540(struct ixgbe_hw *hw)
{
- s32 ret_val = 0;
+ s32 ret_val;
ret_val = ixgbe_start_hw_generic(hw);
- if (ret_val != 0)
- goto out;
+ if (ret_val)
+ return ret_val;
- ret_val = ixgbe_start_hw_gen2(hw);
-out:
- return ret_val;
-}
-
-/**
- * ixgbe_get_supported_physical_layer_X540 - Returns physical layer type
- * @hw: pointer to hardware structure
- *
- * Determines physical layer capabilities of the current configuration.
- **/
-static u32 ixgbe_get_supported_physical_layer_X540(struct ixgbe_hw *hw)
-{
- u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
- u16 ext_ability = 0;
-
- hw->phy.ops.identify(hw);
-
- hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE, MDIO_MMD_PMAPMD,
- &ext_ability);
- if (ext_ability & MDIO_PMA_EXTABLE_10GBT)
- physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
- if (ext_ability & MDIO_PMA_EXTABLE_1000BT)
- physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
- if (ext_ability & MDIO_PMA_EXTABLE_100BTX)
- physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
-
- return physical_layer;
+ return ixgbe_start_hw_gen2(hw);
}
/**
@@ -258,13 +230,12 @@ static s32 ixgbe_init_eeprom_params_X540(struct ixgbe_hw *hw)
**/
static s32 ixgbe_read_eerd_X540(struct ixgbe_hw *hw, u16 offset, u16 *data)
{
- s32 status = 0;
+ s32 status;
- if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) ==
- 0)
- status = ixgbe_read_eerd_generic(hw, offset, data);
- else
- status = IXGBE_ERR_SWFW_SYNC;
+ if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
+ return IXGBE_ERR_SWFW_SYNC;
+
+ status = ixgbe_read_eerd_generic(hw, offset, data);
hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
return status;
@@ -282,14 +253,12 @@ static s32 ixgbe_read_eerd_X540(struct ixgbe_hw *hw, u16 offset, u16 *data)
static s32 ixgbe_read_eerd_buffer_X540(struct ixgbe_hw *hw,
u16 offset, u16 words, u16 *data)
{
- s32 status = 0;
+ s32 status;
- if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) ==
- 0)
- status = ixgbe_read_eerd_buffer_generic(hw, offset,
- words, data);
- else
- status = IXGBE_ERR_SWFW_SYNC;
+ if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
+ return IXGBE_ERR_SWFW_SYNC;
+
+ status = ixgbe_read_eerd_buffer_generic(hw, offset, words, data);
hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
return status;
@@ -305,12 +274,12 @@ static s32 ixgbe_read_eerd_buffer_X540(struct ixgbe_hw *hw,
**/
static s32 ixgbe_write_eewr_X540(struct ixgbe_hw *hw, u16 offset, u16 data)
{
- s32 status = 0;
+ s32 status;
- if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0)
- status = ixgbe_write_eewr_generic(hw, offset, data);
- else
- status = IXGBE_ERR_SWFW_SYNC;
+ if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
+ return IXGBE_ERR_SWFW_SYNC;
+
+ status = ixgbe_write_eewr_generic(hw, offset, data);
hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
return status;
@@ -328,14 +297,12 @@ static s32 ixgbe_write_eewr_X540(struct ixgbe_hw *hw, u16 offset, u16 data)
static s32 ixgbe_write_eewr_buffer_X540(struct ixgbe_hw *hw,
u16 offset, u16 words, u16 *data)
{
- s32 status = 0;
+ s32 status;
- if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) ==
- 0)
- status = ixgbe_write_eewr_buffer_generic(hw, offset,
- words, data);
- else
- status = IXGBE_ERR_SWFW_SYNC;
+ if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
+ return IXGBE_ERR_SWFW_SYNC;
+
+ status = ixgbe_write_eewr_buffer_generic(hw, offset, words, data);
hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
return status;
@@ -430,44 +397,37 @@ static s32 ixgbe_validate_eeprom_checksum_X540(struct ixgbe_hw *hw,
u16 checksum;
u16 read_checksum = 0;
- /*
- * Read the first word from the EEPROM. If this times out or fails, do
+ /* Read the first word from the EEPROM. If this times out or fails, do
* not continue or we could be in for a very long wait while every
* EEPROM read fails
*/
status = hw->eeprom.ops.read(hw, 0, &checksum);
-
- if (status != 0) {
+ if (status) {
hw_dbg(hw, "EEPROM read failed\n");
- goto out;
+ return status;
}
- if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) {
- checksum = hw->eeprom.ops.calc_checksum(hw);
+ if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
+ return IXGBE_ERR_SWFW_SYNC;
- /*
- * Do not use hw->eeprom.ops.read because we do not want to take
- * the synchronization semaphores twice here.
- */
- ixgbe_read_eerd_generic(hw, IXGBE_EEPROM_CHECKSUM,
- &read_checksum);
+ checksum = hw->eeprom.ops.calc_checksum(hw);
- /*
- * Verify read checksum from EEPROM is the same as
- * calculated checksum
- */
- if (read_checksum != checksum)
- status = IXGBE_ERR_EEPROM_CHECKSUM;
-
- /* If the user cares, return the calculated checksum */
- if (checksum_val)
- *checksum_val = checksum;
- } else {
- status = IXGBE_ERR_SWFW_SYNC;
- }
+ /* Do not use hw->eeprom.ops.read because we do not want to take
+ * the synchronization semaphores twice here.
+ */
+ status = ixgbe_read_eerd_generic(hw, IXGBE_EEPROM_CHECKSUM,
+ &read_checksum);
hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
-out:
+
+ /* If the user cares, return the calculated checksum */
+ if (checksum_val)
+ *checksum_val = checksum;
+
+ /* Verify read and calculated checksums are the same */
+ if (read_checksum != checksum)
+ return IXGBE_ERR_EEPROM_CHECKSUM;
+
return status;
}
@@ -484,34 +444,29 @@ static s32 ixgbe_update_eeprom_checksum_X540(struct ixgbe_hw *hw)
s32 status;
u16 checksum;
- /*
- * Read the first word from the EEPROM. If this times out or fails, do
+ /* Read the first word from the EEPROM. If this times out or fails, do
* not continue or we could be in for a very long wait while every
* EEPROM read fails
*/
status = hw->eeprom.ops.read(hw, 0, &checksum);
-
- if (status != 0)
+ if (status) {
hw_dbg(hw, "EEPROM read failed\n");
+ return status;
+ }
- if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) {
- checksum = hw->eeprom.ops.calc_checksum(hw);
+ if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
+ return IXGBE_ERR_SWFW_SYNC;
- /*
- * Do not use hw->eeprom.ops.write because we do not want to
- * take the synchronization semaphores twice here.
- */
- status = ixgbe_write_eewr_generic(hw, IXGBE_EEPROM_CHECKSUM,
- checksum);
+ checksum = hw->eeprom.ops.calc_checksum(hw);
- if (status == 0)
+ /* Do not use hw->eeprom.ops.write because we do not want to
+ * take the synchronization semaphores twice here.
+ */
+ status = ixgbe_write_eewr_generic(hw, IXGBE_EEPROM_CHECKSUM, checksum);
+ if (!status)
status = ixgbe_update_flash_X540(hw);
- else
- status = IXGBE_ERR_SWFW_SYNC;
- }
hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
-
return status;
}
@@ -525,12 +480,12 @@ static s32 ixgbe_update_eeprom_checksum_X540(struct ixgbe_hw *hw)
static s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw)
{
u32 flup;
- s32 status = IXGBE_ERR_EEPROM;
+ s32 status;
status = ixgbe_poll_flash_update_done_X540(hw);
if (status == IXGBE_ERR_EEPROM) {
hw_dbg(hw, "Flash update time out\n");
- goto out;
+ return status;
}
flup = IXGBE_READ_REG(hw, IXGBE_EEC) | IXGBE_EEC_FLUP;
@@ -556,7 +511,7 @@ static s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw)
else
hw_dbg(hw, "Flash update time out\n");
}
-out:
+
return status;
}
@@ -571,17 +526,14 @@ static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw)
{
u32 i;
u32 reg;
- s32 status = IXGBE_ERR_EEPROM;
for (i = 0; i < IXGBE_FLUDONE_ATTEMPTS; i++) {
reg = IXGBE_READ_REG(hw, IXGBE_EEC);
- if (reg & IXGBE_EEC_FLUDONE) {
- status = 0;
- break;
- }
+ if (reg & IXGBE_EEC_FLUDONE)
+ return 0;
udelay(5);
}
- return status;
+ return IXGBE_ERR_EEPROM;
}
/**
@@ -676,46 +628,44 @@ static void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u16 mask)
}
/**
- * ixgbe_get_nvm_semaphore - Get hardware semaphore
+ * ixgbe_get_swfw_sync_semaphore - Get hardware semaphore
* @hw: pointer to hardware structure
*
* Sets the hardware semaphores so SW/FW can gain control of shared resources
- **/
+ */
static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw)
{
- s32 status = IXGBE_ERR_EEPROM;
u32 timeout = 2000;
u32 i;
u32 swsm;
/* Get SMBI software semaphore between device drivers first */
for (i = 0; i < timeout; i++) {
- /*
- * If the SMBI bit is 0 when we read it, then the bit will be
+ /* If the SMBI bit is 0 when we read it, then the bit will be
* set and we have the semaphore
*/
swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
- if (!(swsm & IXGBE_SWSM_SMBI)) {
- status = 0;
+ if (!(swsm & IXGBE_SWSM_SMBI))
break;
- }
- udelay(50);
+ usleep_range(50, 100);
+ }
+
+ if (i == timeout) {
+ hw_dbg(hw,
+ "Software semaphore SMBI between device drivers not granted.\n");
+ return IXGBE_ERR_EEPROM;
}
/* Now get the semaphore between SW/FW through the REGSMP bit */
- if (status) {
- for (i = 0; i < timeout; i++) {
- swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC);
- if (!(swsm & IXGBE_SWFW_REGSMP))
- break;
+ for (i = 0; i < timeout; i++) {
+ swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC);
+ if (!(swsm & IXGBE_SWFW_REGSMP))
+ return 0;
- udelay(50);
- }
- } else {
- hw_dbg(hw, "Software semaphore SMBI between device drivers not granted.\n");
+ usleep_range(50, 100);
}
- return status;
+ return IXGBE_ERR_EEPROM;
}
/**
@@ -811,8 +761,6 @@ static struct ixgbe_mac_operations mac_ops_X540 = {
.start_hw = &ixgbe_start_hw_X540,
.clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
.get_media_type = &ixgbe_get_media_type_X540,
- .get_supported_physical_layer =
- &ixgbe_get_supported_physical_layer_X540,
.enable_rx_dma = &ixgbe_enable_rx_dma_generic,
.get_mac_addr = &ixgbe_get_mac_addr_generic,
.get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-10 01:08:15 +0300