d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/ixgbe/base: reduce delay for SWFW semaphore

Browse Source 
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>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
This commit is contained in:
Xiao Wang 2016-09-25 17:00:05 +08:00 committed by Bruce Richardson
parent 89763bb924
commit 607599ae99
2 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ixgbe/base/ixgbe_x540.c
View File

@ -783,7 +783,6 @@ 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 +859,7 @@ 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);
}
/**

1
drivers/net/ixgbe/base/ixgbe_x550.c
View File

@ -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;