From: Rukhsana Ansari rukhsana.ansari@broadcom.com
[ Upstream commit c12e1643d2738bcd4e26252ce531878841dd3f38 ]
TQM fastpath ring needs to be sized to store both the requester and responder side of RoCE QPs in TQM for supporting bi-directional tests. Fix bnxt_alloc_ctx_mem() to multiply the RoCE QPs by a factor of 2 when computing the number of entries for TQM fastpath ring. This fixes an RX pipeline stall issue when running bi-directional max RoCE QP tests.
Fixes: c7dd7ab4b204 ("bnxt_en: Improve TQM ring context memory sizing formulas.") Signed-off-by: Rukhsana Ansari rukhsana.ansari@broadcom.com Signed-off-by: Michael Chan michael.chan@broadcom.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 70c03c156e00..3f3d13a18992 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -7184,7 +7184,7 @@ skip_rdma: entries_sp = ctx->vnic_max_vnic_entries + ctx->qp_max_l2_entries + 2 * (extra_qps + ctx->qp_min_qp1_entries) + min; entries_sp = roundup(entries_sp, ctx->tqm_entries_multiple); - entries = ctx->qp_max_l2_entries + extra_qps + ctx->qp_min_qp1_entries; + entries = ctx->qp_max_l2_entries + 2 * (extra_qps + ctx->qp_min_qp1_entries); entries = roundup(entries, ctx->tqm_entries_multiple); entries = clamp_t(u32, entries, min, ctx->tqm_max_entries_per_ring); for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) {