The branch main has been updated by kbowling:
URL:
https://cgit.FreeBSD.org/src/commit/?id=1b80ac6fa64eaa575b99521cbd71a3780bf5139b
commit 1b80ac6fa64eaa575b99521cbd71a3780bf5139b
Author: Radoslaw Tyl <radoslawx....@intel.com>
AuthorDate: 2024-09-20 02:42:39 +0000
Commit: Kevin Bowling <kbowl...@freebsd.org>
CommitDate: 2024-09-20 02:42:39 +0000
ixgbe: increase DCB BW calculation for MTU
Change max credit and credit refill to a maximum possible value, 9128.
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....@intel.com>
Reviewed-by: Piotr Skajewski <piotrx.skajew...@intel.com>
Reviewed-by: Slawomir Mrozowicz <slawomirx.mrozow...@intel.com>
Reviewed-by: Alice Michael <alice.mich...@intel.com>
Tested-by: Piotr Skajewski <piotrx.skajew...@intel.com>
Obtained from: DPDK (440823f)
MFC after: 1 week
---
sys/dev/ixgbe/ixgbe_dcb.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sys/dev/ixgbe/ixgbe_dcb.h b/sys/dev/ixgbe/ixgbe_dcb.h
index b31dfae0cdfa..54decd4d081d 100644
--- a/sys/dev/ixgbe/ixgbe_dcb.h
+++ b/sys/dev/ixgbe/ixgbe_dcb.h
@@ -40,9 +40,9 @@
/* 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 \
