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RDMA/bnxt_re: Fix the offset for GenP7 adapters for user applications

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commit 9248f363d0791a548a9c7711365b8be4c70bd375 upstream.

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@broadcom.com>
Link: https://lore.kernel.org/r/1702987900-5363-1-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Selvin Xavier
2023-12-19 04:11:40 -08:00
committed by Greg Kroah-Hartman
parent 38ca6fd426
commit 1aee34ed99
1 changed files with 5 additions and 3 deletions
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8
drivers/infiniband/hw/bnxt_re/main.c
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@@ -107,12 +107,14 @@ 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