[PATCH for-next] RDMA/bnxt_re: Fix the offset for GenP7 adapters for user applications

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



User Doorbell page indexes start at an offset for GenP7 adapters.
Fix the offset that will be used for user doorbell page indexes.

Fixes: a62d68581441 ("RDMA/bnxt_re: Update the BAR offsets")
Signed-off-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
---
 drivers/infiniband/hw/bnxt_re/main.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index eb03eba..f022c922 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -108,12 +108,14 @@ static void bnxt_re_set_db_offset(struct bnxt_re_dev *rdev)
 		dev_info(rdev_to_dev(rdev),
 			 "Couldn't get DB bar size, Low latency framework is disabled\n");
 	/* set register offsets for both UC and WC */
-	if (bnxt_qplib_is_chip_gen_p7(cctx))
+	if (bnxt_qplib_is_chip_gen_p7(cctx)) {
 		res->dpi_tbl.ucreg.offset = offset;
-	else
+		res->dpi_tbl.wcreg.offset = en_dev->l2_db_size;
+	} else {
 		res->dpi_tbl.ucreg.offset = res->is_vf ? BNXT_QPLIB_DBR_VF_DB_OFFSET :
 							 BNXT_QPLIB_DBR_PF_DB_OFFSET;
-	res->dpi_tbl.wcreg.offset = res->dpi_tbl.ucreg.offset;
+		res->dpi_tbl.wcreg.offset = res->dpi_tbl.ucreg.offset;
+	}
 
 	/* If WC mapping is disabled by L2 driver then en_dev->l2_db_size
 	 * is equal to the DB-Bar actual size. This indicates that L2
-- 
2.5.5

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature


[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Yosemite Photos]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux