diff mbox

[dpdk-dev,28/39] net/ixgbe/base: reduce delay for SWFW semaphore

Message ID 1472312902-16963-29-git-send-email-xiao.w.wang@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Bruce Richardson
Headers

Commit Message

Xiao Wang Aug. 27, 2016, 3:48 p.m. UTC 
  This patch reduces the SWFW semaphore/PHY Token retry delay.

ixgbe_release_swfw_sync_X540: Reduce 5 ms delay after releasing
semaphore to 2 ms. HW team indicated 1 ms delay would be sufficient
for FW access.

ixgbe_acquire_swfw_sync_X540: Remove 5 ms delay after acquiring
semaphore.

ixgbe_acquire_swfw_sync_X550a: Remove 5 ms delay since there are
two 2 ms delays in the semaphore release flow.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
---
 drivers/net/ixgbe/base/ixgbe_x540.c | 4 ++--
 drivers/net/ixgbe/base/ixgbe_x550.c | 1 -
 2 files changed, 2 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/ixgbe/base/ixgbe_x540.c b/drivers/net/ixgbe/base/ixgbe_x540.c
index 24e9c93..6e778bc 100644
--- a/drivers/net/ixgbe/base/ixgbe_x540.c
+++ b/drivers/net/ixgbe/base/ixgbe_x540.c
@@ -271,6 +271,7 @@  mac_reset_top:
 	if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
 		/* Save the SAN MAC RAR index */
 		hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
+
 		hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index,
 				    hw->mac.san_addr, 0, IXGBE_RAH_AV);
 
@@ -783,7 +784,6 @@  s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 			IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC_BY_MAC(hw),
 					swfw_sync);
 			ixgbe_release_swfw_sync_semaphore(hw);
-			msec_delay(5);
 			return IXGBE_SUCCESS;
 		}
 		/* Firmware currently using resource (fwmask), hardware
@@ -860,7 +860,7 @@  void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 	IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC_BY_MAC(hw), swfw_sync);
 
 	ixgbe_release_swfw_sync_semaphore(hw);
-	msec_delay(5);
+	msec_delay(2);
 }
 
 /**
diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c
index 32759cc..f2e885c 100644
--- a/drivers/net/ixgbe/base/ixgbe_x550.c
+++ b/drivers/net/ixgbe/base/ixgbe_x550.c
@@ -4523,7 +4523,6 @@  STATIC s32 ixgbe_acquire_swfw_sync_X550a(struct ixgbe_hw *hw, u32 mask)
 			ixgbe_release_swfw_sync_X540(hw, hmask);
 		if (status != IXGBE_ERR_TOKEN_RETRY)
 			return status;
-		msec_delay(FW_PHY_TOKEN_DELAY);
 	}
 
 	return status;