6.6-stable review patch. If anyone has any objections, please let me know.
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From: Selvin Xavier selvin.xavier@broadcom.com
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@bro... Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/bnxt_re/main.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -107,12 +107,14 @@ static void bnxt_re_set_db_offset(struct 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