[2/2] net/bnxt: fix TQM ring context memory sizing formulas
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Commit Message
From: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
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 firmware spec. for 57500 and newer
chips.
Fixes: cc5e26b8ef98 ("net/bnxt: increase TQM entry allocation")
Cc: stable@dpdk.org
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khaparde@broadcom.com>
---
drivers/net/bnxt/bnxt_ethdev.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
@@ -4672,6 +4672,7 @@ int bnxt_alloc_ctx_mem(struct bnxt *bp)
struct bnxt_ctx_pg_info *ctx_pg;
struct bnxt_ctx_mem_info *ctx;
uint32_t mem_size, ena, entries;
+ uint32_t entries_sp, min;
int i, rc;
rc = bnxt_hwrm_func_backing_store_qcaps(bp);
@@ -4719,15 +4720,20 @@ int bnxt_alloc_ctx_mem(struct bnxt *bp)
if (rc)
return rc;
- entries = ctx->qp_max_l2_entries +
- ctx->vnic_max_vnic_entries +
- ctx->tqm_min_entries_per_ring;
+ min = ctx->tqm_min_entries_per_ring;
+
+ entries_sp = ctx->qp_max_l2_entries +
+ ctx->vnic_max_vnic_entries +
+ 2 * ctx->qp_min_qp1_entries + min;
+ entries_sp = bnxt_roundup(entries_sp, ctx->tqm_entries_multiple);
+
+ entries = ctx->qp_max_l2_entries + ctx->qp_min_qp1_entries;
entries = bnxt_roundup(entries, ctx->tqm_entries_multiple);
- entries = clamp_t(uint32_t, entries, ctx->tqm_min_entries_per_ring,
+ entries = clamp_t(uint32_t, entries, min,
ctx->tqm_max_entries_per_ring);
for (i = 0, ena = 0; i < ctx->tqm_fp_rings_count + 1; i++) {
ctx_pg = ctx->tqm_mem[i];
- ctx_pg->entries = entries;
+ ctx_pg->entries = i ? entries : entries_sp;
mem_size = ctx->tqm_entry_size * ctx_pg->entries;
rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg, mem_size, "tqm_mem", i);
if (rc)