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authorJohn Fastabend <john.r.fastabend@intel.com>2010-11-16 19:26:45 -0800
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2010-11-16 19:26:45 -0800
commit80ab193dce048e7b7afa43c99e69f508167e29ab (patch)
treec51e4b013ba3d2b003ec23a9e0be8d3f7c9a764c /drivers/net/ixgbe/ixgbe_dcb.c
parent16b61beb39f2446460f93c08d4d263dc24f22dd8 (diff)
ixgbe: DCB: credit max only needs to be gt TSO size for 82598
The maximum credits per traffic class only needs to be greater then the TSO size for 82598 devices. The 82599 devices do not have this requirement so only do this test for 82598 devices. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_dcb.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb.c b/drivers/net/ixgbe/ixgbe_dcb.c
index 0d44c6470ca..4f2f0ae6735 100644
--- a/drivers/net/ixgbe/ixgbe_dcb.c
+++ b/drivers/net/ixgbe/ixgbe_dcb.c
@@ -42,7 +42,8 @@
* It should be called only after the rules are checked by
* ixgbe_dcb_check_config().
*/
-s32 ixgbe_dcb_calculate_tc_credits(struct ixgbe_dcb_config *dcb_config,
+s32 ixgbe_dcb_calculate_tc_credits(struct ixgbe_hw *hw,
+ struct ixgbe_dcb_config *dcb_config,
int max_frame, u8 direction)
{
struct tc_bw_alloc *p;
@@ -124,7 +125,8 @@ s32 ixgbe_dcb_calculate_tc_credits(struct ixgbe_dcb_config *dcb_config,
* credit may not be enough to send out a TSO
* packet in descriptor plane arbitration.
*/
- if (credit_max &&
+ if ((hw->mac.type == ixgbe_mac_82598EB) &&
+ credit_max &&
(credit_max < MINIMUM_CREDIT_FOR_TSO))
credit_max = MINIMUM_CREDIT_FOR_TSO;