Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c7d204e8fdf02f88d91707213f473805bcfb977b
Commit: c7d204e8fdf02f88d91707213f473805bcfb977b
Parent: b038ced7b3705bf0ac9b30e118af0f56ab48b847
Author: Michael S. Tsirkin <[EMAIL PROTECTED]>
AuthorDate: Sat Feb 10 23:17:26 2007 +0200
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Mon Feb 12 16:16:29 2007 -0800
IB/mthca: Fix reserved MTTs calculation on mem-free HCAs
The reserved_mtts field has different meaning in Tavor and Arbel, so
we are wasting mtt entries on memfree. Fix the Arbel case to match
Tavor semantics.
Signed-off-by: Michael S. Tsirkin <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
drivers/infiniband/hw/mthca/mthca_cmd.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c
b/drivers/infiniband/hw/mthca/mthca_cmd.c
index 968d151..7131446 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -1051,7 +1051,11 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET);
dev_lim->max_eqs = 1 << (field & 0x7);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET);
- dev_lim->reserved_mtts = 1 << (field >> 4);
+ if (mthca_is_memfree(dev))
+ dev_lim->reserved_mtts = ALIGN((1 << (field >> 4)) *
sizeof(u64),
+ MTHCA_MTT_SEG_SIZE) /
MTHCA_MTT_SEG_SIZE;
+ else
+ dev_lim->reserved_mtts = 1 << (field >> 4);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET);
dev_lim->max_mrw_sz = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET);
-
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