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Message-Id: <1545295133-17666-10-git-send-email-michael.chan@broadcom.com>
Date: Thu, 20 Dec 2018 03:38:51 -0500
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org
Subject: [PATCH net-next 09/11] bnxt_en: Increase context memory allocations on 57500 chips for RDMA.
If RDMA is supported on the 57500 chip, increase context memory
allocations for the resources used by RDMA.
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 65 +++++++++++++++++++++++++++----
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 2 +
2 files changed, 59 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index ade2c6f..d328764 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -6128,6 +6128,22 @@ static int bnxt_hwrm_func_backing_store_cfg(struct bnxt *bp, u32 enables)
&req.stat_pg_size_stat_lvl,
&req.stat_page_dir);
}
+ if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV) {
+ ctx_pg = &ctx->mrav_mem;
+ req.mrav_num_entries = cpu_to_le32(ctx_pg->entries);
+ req.mrav_entry_size = cpu_to_le16(ctx->mrav_entry_size);
+ bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
+ &req.mrav_pg_size_mrav_lvl,
+ &req.mrav_page_dir);
+ }
+ if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM) {
+ ctx_pg = &ctx->tim_mem;
+ req.tim_num_entries = cpu_to_le32(ctx_pg->entries);
+ req.tim_entry_size = cpu_to_le16(ctx->tim_entry_size);
+ bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
+ &req.tim_pg_size_tim_lvl,
+ &req.tim_page_dir);
+ }
for (i = 0, num_entries = &req.tqm_sp_num_entries,
pg_attr = &req.tqm_sp_pg_size_tqm_sp_lvl,
pg_dir = &req.tqm_sp_page_dir,
@@ -6261,6 +6277,8 @@ static void bnxt_free_ctx_mem(struct bnxt *bp)
ctx->tqm_mem[0] = NULL;
}
+ bnxt_free_ctx_pg_tbls(bp, &ctx->tim_mem);
+ bnxt_free_ctx_pg_tbls(bp, &ctx->mrav_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->stat_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->vnic_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->cq_mem);
@@ -6274,6 +6292,9 @@ 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 extra_srqs = 0;
+ u32 extra_qps = 0;
+ u8 pg_lvl = 1;
int i, rc;
rc = bnxt_hwrm_func_backing_store_qcaps(bp);
@@ -6286,24 +6307,31 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
if (!ctx || (ctx->flags & BNXT_CTX_FLAG_INITED))
return 0;
+ if (bp->flags & BNXT_FLAG_ROCE_CAP) {
+ pg_lvl = 2;
+ extra_qps = 65536;
+ extra_srqs = 8192;
+ }
+
ctx_pg = &ctx->qp_mem;
- ctx_pg->entries = ctx->qp_min_qp1_entries + ctx->qp_max_l2_entries;
+ ctx_pg->entries = ctx->qp_min_qp1_entries + ctx->qp_max_l2_entries +
+ extra_qps;
mem_size = ctx->qp_entry_size * ctx_pg->entries;
- rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1);
+ rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl);
if (rc)
return rc;
ctx_pg = &ctx->srq_mem;
- ctx_pg->entries = ctx->srq_max_l2_entries;
+ ctx_pg->entries = ctx->srq_max_l2_entries + extra_srqs;
mem_size = ctx->srq_entry_size * ctx_pg->entries;
- rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1);
+ rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl);
if (rc)
return rc;
ctx_pg = &ctx->cq_mem;
- ctx_pg->entries = ctx->cq_max_l2_entries;
+ ctx_pg->entries = ctx->cq_max_l2_entries + extra_qps * 2;
mem_size = ctx->cq_entry_size * ctx_pg->entries;
- rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1);
+ rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl);
if (rc)
return rc;
@@ -6322,11 +6350,32 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp)
if (rc)
return rc;
- entries = ctx->qp_max_l2_entries;
+ ena = 0;
+ if (!(bp->flags & BNXT_FLAG_ROCE_CAP))
+ goto skip_rdma;
+
+ ctx_pg = &ctx->mrav_mem;
+ ctx_pg->entries = extra_qps * 4;
+ mem_size = ctx->mrav_entry_size * ctx_pg->entries;
+ rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2);
+ if (rc)
+ return rc;
+ ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV;
+
+ ctx_pg = &ctx->tim_mem;
+ ctx_pg->entries = ctx->qp_mem.entries;
+ mem_size = ctx->tim_entry_size * ctx_pg->entries;
+ rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1);
+ if (rc)
+ return rc;
+ ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM;
+
+skip_rdma:
+ entries = ctx->qp_max_l2_entries + extra_qps;
entries = roundup(entries, ctx->tqm_entries_multiple);
entries = clamp_t(u32, entries, ctx->tqm_min_entries_per_ring,
ctx->tqm_max_entries_per_ring);
- for (i = 0, ena = 0; i < bp->max_q + 1; i++) {
+ for (i = 0; i < bp->max_q + 1; i++) {
ctx_pg = ctx->tqm_mem[i];
ctx_pg->entries = entries;
mem_size = ctx->tqm_entry_size * entries;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 6b350cd..61d07a4 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1237,6 +1237,8 @@ struct bnxt_ctx_mem_info {
struct bnxt_ctx_pg_info cq_mem;
struct bnxt_ctx_pg_info vnic_mem;
struct bnxt_ctx_pg_info stat_mem;
+ struct bnxt_ctx_pg_info mrav_mem;
+ struct bnxt_ctx_pg_info tim_mem;
struct bnxt_ctx_pg_info *tqm_mem[9];
};
--
2.5.1
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