[v1,07/22] net/ixgbe/base: increase DCB BW calculation for MTU from 4088 to 9128
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Commit Message
From: Radoslaw Tyl <radoslawx.tyl@intel.com>
Change max credit and credit refill to a maximum possible value.
Too small values cause the incorrect calculation of the bandwidth limits
to each traffic class for frames larger than 4088 bytes.
Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Reviewed-by: Skajewski, PiotrX <piotrx.skajewski@intel.com>
Tested-by: Skajewski, PiotrX <piotrx.skajewski@intel.com>
Reviewed-by: Mrozowicz, SlawomirX <slawomirx.mrozowicz@intel.com>
Reviewed-by: Michael, Alice <alice.michael@intel.com>
---
drivers/net/ixgbe/base/ixgbe_dcb.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
@@ -10,9 +10,9 @@
/* DCB defines */
/* DCB credit calculation defines */
#define IXGBE_DCB_CREDIT_QUANTUM 64
-#define IXGBE_DCB_MAX_CREDIT_REFILL 200 /* 200 * 64B = 12800B */
+#define IXGBE_DCB_MAX_CREDIT_REFILL 511 /* 0x1FF * 64B = 32704B */
#define IXGBE_DCB_MAX_TSO_SIZE (32 * 1024) /* Max TSO pkt size in DCB*/
-#define IXGBE_DCB_MAX_CREDIT (2 * IXGBE_DCB_MAX_CREDIT_REFILL)
+#define IXGBE_DCB_MAX_CREDIT 4095 /* Maximum credit supported: 256KB * 1024 / 64B */
/* 513 for 32KB TSO packet */
#define IXGBE_DCB_MIN_TSO_CREDIT \