diff mbox

[v2,15/17] staging/rdma/hfi1: Consider VL15 MTU also when calculating the maximum VL MTU

Message ID 1449002306-15180-16-git-send-email-jubin.john@intel.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

jubin.john@intel.com Dec. 1, 2015, 8:38 p.m. UTC 
From: Harish Chegondi <harish.chegondi@intel.com>

Currently, only MTUs of VLs 0-7 are checked when calculating the maximum VL
MTU which is used to set the port MTU capability in DCC_CFG_PORT_CONFIG CSR
This can cause a port MTU capability to be set to 0 if MTUs of VLs 0-7 is 0
This would affect the VL15 traffic.

Reviewed-by: Dean Luick <dean.luick@intel.com>
Reviewed-by: Arthur Kepner <arthur.kepner@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
---
Changes in v2:
	- No changes

 drivers/staging/rdma/hfi1/chip.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c
index e7c1505..9811954 100644
--- a/drivers/staging/rdma/hfi1/chip.c
+++ b/drivers/staging/rdma/hfi1/chip.c
@@ -9399,7 +9399,8 @@  u32 lrh_max_header_bytes(struct hfi1_devdata *dd)
 static void set_send_length(struct hfi1_pportdata *ppd)
 {
 	struct hfi1_devdata *dd = ppd->dd;
-	u32 max_hb = lrh_max_header_bytes(dd), maxvlmtu = 0, dcmtu;
+	u32 max_hb = lrh_max_header_bytes(dd), dcmtu;
+	u32 maxvlmtu = dd->vld[15].mtu;
 	u64 len1 = 0, len2 = (((dd->vld[15].mtu + max_hb) >> 2)
 			      & SEND_LEN_CHECK1_LEN_VL15_MASK) <<
 		SEND_LEN_CHECK1_LEN_VL15_SHIFT;