The current formulas to calculate the TQM slow path and fast path ring
context memory sizes are not quite correct. TQM slow path entry is
array index 0 of ctx->tqm_mem[]. The other array entries are for fast
path. Fix these sizes according to latest firmware spec. for 57500 and
newer chips.
Fixes: 3be8136ce14e ("bnxt_en: Initialize context memory to the value specified
by firmware.")
Signed-off-by: Michael Chan <[email protected]>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 32a2083..0cf41a1 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -6760,6 +6760,7 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
struct bnxt_ctx_pg_info *ctx_pg;
struct bnxt_ctx_mem_info *ctx;
u32 mem_size, ena, entries;
+ u32 entries_sp, min;
u32 num_mr, num_ah;
u32 extra_srqs = 0;
u32 extra_qps = 0;
@@ -6849,14 +6850,17 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM;
skip_rdma:
- entries = ctx->qp_max_l2_entries + extra_qps;
+ min = ctx->tqm_min_entries_per_ring;
+ 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 = roundup(entries, ctx->tqm_entries_multiple);
- entries = clamp_t(u32, entries, ctx->tqm_min_entries_per_ring,
- ctx->tqm_max_entries_per_ring);
+ entries = clamp_t(u32, entries, min, ctx->tqm_max_entries_per_ring);
for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) {
ctx_pg = ctx->tqm_mem[i];
- ctx_pg->entries = entries;
- mem_size = ctx->tqm_entry_size * entries;
+ ctx_pg->entries = i ? entries : entries_sp;
+ mem_size = ctx->tqm_entry_size * ctx_pg->entries;
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, false);
if (rc)
return rc;
--
2.5.1
