diff options
| author |   Michael Chan <michael.chan@broadcom.com> | 2019-01-12 00:13:05 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-01-12 10:51:39 -0800 |
| commit | 6ef982dec7eda9affa81a2bb84f75441deb56d06 (patch) | |
| tree | 7a58838481cb7dcd3981da30097deaddb1b7bdd1 /drivers | |
| parent | bnxt_en: Fix ring checking logic on 57500 chips. (diff) | |
| download | linux-dev-6ef982dec7eda9affa81a2bb84f75441deb56d06.tar.xz linux-dev-6ef982dec7eda9affa81a2bb84f75441deb56d06.zip | |
bnxt_en: Fix context memory allocation.
When allocating memory pages for context memory, if the last page table
should be fully populated, the current code will set nr_pages to 0 when
calling bnxt_alloc_ctx_mem_blk(). This will cause the last page table
to be completely blank and causing some RDMA failures.
Fix it by setting the last page table's nr_pages to the remainder only
if it is non-zero.
Fixes: 08fe9d181606 ("bnxt_en: Add Level 2 context memory paging support.")
Reported-by: Eric Davis <eric.davis@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index a125fbe5183f..9499d01632ff 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -6222,9 +6222,12 @@ static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp, rmem->pg_tbl_map = ctx_pg->ctx_dma_arr[i]; rmem->depth = 1; rmem->nr_pages = MAX_CTX_PAGES; - if (i == (nr_tbls - 1)) - rmem->nr_pages = ctx_pg->nr_pages % - MAX_CTX_PAGES; + if (i == (nr_tbls - 1)) { + int rem = ctx_pg->nr_pages % MAX_CTX_PAGES; + + if (rem) + rmem->nr_pages = rem; + } rc = bnxt_alloc_ctx_mem_blk(bp, pg_tbl); if (rc) break; |