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Date: Wed, 13 Apr 2011 18:02:11 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Emil Tantilov <emil.s.tantilov@...el.com>, netdev@...r.kernel.org,
gospo@...hat.com, bphilips@...ell.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 15/24] ixgbe: refactor common start_hw code for 82599 and x540
From: Emil Tantilov <emil.s.tantilov@...el.com>
Factored out the common start_hw code into a new function
ixgbe_start_hw_gen2() so that it can be used by x540 and 82599.
Signed-off-by: Emil Tantilov <emil.s.tantilov@...el.com>
Acked-by: Don Skidmore <donald.c.skidmore@...el.com>
Tested-by: Evan Swanson <evan.swanson@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ixgbe/ixgbe_82599.c | 22 ++++++++++------------
drivers/net/ixgbe/ixgbe_common.c | 24 ++++++++++++++++++++++++
drivers/net/ixgbe/ixgbe_common.h | 1 +
drivers/net/ixgbe/ixgbe_x540.c | 24 +++++++++++++++++++++++-
4 files changed, 58 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c
index 32ad411..09934a8 100644
--- a/drivers/net/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ixgbe/ixgbe_82599.c
@@ -1740,30 +1740,28 @@ static s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
* ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
* @hw: pointer to hardware structure
*
- * Starts the hardware using the generic start_hw function.
- * Then performs device-specific:
- * Clears the rate limiter registers.
+ * Starts the hardware using the generic start_hw function
+ * and the generation start_hw function.
+ * Then performs revision-specific operations, if any.
**/
static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
{
- u32 q_num;
- s32 ret_val;
+ s32 ret_val = 0;
ret_val = ixgbe_start_hw_generic(hw);
+ if (ret_val != 0)
+ goto out;
- /* Clear the rate limiters */
- for (q_num = 0; q_num < hw->mac.max_tx_queues; q_num++) {
- IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, q_num);
- IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0);
- }
- IXGBE_WRITE_FLUSH(hw);
+ ret_val = ixgbe_start_hw_gen2(hw);
+ if (ret_val != 0)
+ goto out;
/* We need to run link autotry after the driver loads */
hw->mac.autotry_restart = true;
if (ret_val == 0)
ret_val = ixgbe_verify_fw_version_82599(hw);
-
+out:
return ret_val;
}
diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index bcd9529..c66fd95 100644
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -96,6 +96,30 @@ s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
}
/**
+ * ixgbe_start_hw_gen2 - Init sequence for common device family
+ * @hw: pointer to hw structure
+ *
+ * Performs the init sequence common to the second generation
+ * of 10 GbE devices.
+ * Devices in the second generation:
+ * 82599
+ * X540
+ **/
+s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw)
+{
+ u32 i;
+
+ /* Clear the rate limiters */
+ for (i = 0; i < hw->mac.max_tx_queues; i++) {
+ IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, i);
+ IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0);
+ }
+ IXGBE_WRITE_FLUSH(hw);
+
+ return 0;
+}
+
+/**
* ixgbe_init_hw_generic - Generic hardware initialization
* @hw: pointer to hardware structure
*
diff --git a/drivers/net/ixgbe/ixgbe_common.h b/drivers/net/ixgbe/ixgbe_common.h
index 508f635..2585bf3 100644
--- a/drivers/net/ixgbe/ixgbe_common.h
+++ b/drivers/net/ixgbe/ixgbe_common.h
@@ -35,6 +35,7 @@ u32 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw);
s32 ixgbe_init_ops_generic(struct ixgbe_hw *hw);
s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw);
s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw);
+s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw);
s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw);
s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
u32 pba_num_size);
diff --git a/drivers/net/ixgbe/ixgbe_x540.c b/drivers/net/ixgbe/ixgbe_x540.c
index 7ce3f45..295c170 100644
--- a/drivers/net/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ixgbe/ixgbe_x540.c
@@ -226,6 +226,28 @@ mac_reset_top:
}
/**
+ * ixgbe_start_hw_X540 - Prepare hardware for Tx/Rx
+ * @hw: pointer to hardware structure
+ *
+ * Starts the hardware using the generic start_hw function
+ * and the generation start_hw function.
+ * Then performs revision-specific operations, if any.
+ **/
+static s32 ixgbe_start_hw_X540(struct ixgbe_hw *hw)
+{
+ s32 ret_val = 0;
+
+ ret_val = ixgbe_start_hw_generic(hw);
+ if (ret_val != 0)
+ goto out;
+
+ 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
*
@@ -660,7 +682,7 @@ static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw)
static struct ixgbe_mac_operations mac_ops_X540 = {
.init_hw = &ixgbe_init_hw_generic,
.reset_hw = &ixgbe_reset_hw_X540,
- .start_hw = &ixgbe_start_hw_generic,
+ .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 =
--
1.7.4.2
--
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