Patchwork [net-next,4/6] enic: Bug fix: align desc ring sizes to 32 descs

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Submitter Scott Feldman
Date Dec. 19, 2009, 2:09 a.m.
Message ID <20091219020956.2745.51293.stgit@savbu-pc100.cisco.com>
Download mbox | patch
Permalink /patch/41460/
State Superseded
Delegated to: David Miller
Headers show

Comments

Scott Feldman - Dec. 19, 2009, 2:09 a.m.
enic: Bug fix: align desc ring sizes to 32 descs

Previous driver was aligning ring sizes to 16 descs, but hardware actually
wants desc ring sizes to be aligned to 32 descs.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
---
 drivers/net/enic/enic_res.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)


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Patch

diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c
index 3211114..a605da1 100644
--- a/drivers/net/enic/enic_res.c
+++ b/drivers/net/enic/enic_res.c
@@ -74,13 +74,13 @@  int enic_get_vnic_config(struct enic *enic)
 		min_t(u32, ENIC_MAX_WQ_DESCS,
 		max_t(u32, ENIC_MIN_WQ_DESCS,
 		c->wq_desc_count));
-	c->wq_desc_count &= 0xfffffff0; /* must be aligned to groups of 16 */
+	c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
 
 	c->rq_desc_count =
 		min_t(u32, ENIC_MAX_RQ_DESCS,
 		max_t(u32, ENIC_MIN_RQ_DESCS,
 		c->rq_desc_count));
-	c->rq_desc_count &= 0xfffffff0; /* must be aligned to groups of 16 */
+	c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
 
 	if (c->mtu == 0)
 		c->mtu = 1500;