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Message-ID: <20240702234757.4188344-10-kuba@kernel.org>
Date: Tue, 2 Jul 2024 16:47:54 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
edumazet@...gle.com,
pabeni@...hat.com,
ecree.xilinx@...il.com,
michael.chan@...adcom.com,
Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next 08/11] eth: bnxt: use the RSS context XArray instead of the local list
Core already maintains all RSS contexts in an XArray, no need
to keep a second list in the driver.
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 41 ++++++++++---------
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 2 -
.../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 11 +++--
3 files changed, 26 insertions(+), 28 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 39876feae1a4..6b8966d3ecb6 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -5970,17 +5970,20 @@ bnxt_cfg_rfs_ring_tbl_idx(struct bnxt *bp,
struct hwrm_cfa_ntuple_filter_alloc_input *req,
struct bnxt_ntuple_filter *fltr)
{
- struct bnxt_rss_ctx *rss_ctx, *tmp;
u16 rxq = fltr->base.rxq;
if (fltr->base.flags & BNXT_ACT_RSS_CTX) {
- list_for_each_entry_safe(rss_ctx, tmp, &bp->rss_ctx_list, list) {
- if (rss_ctx->index == fltr->base.fw_vnic_id) {
- struct bnxt_vnic_info *vnic = &rss_ctx->vnic;
+ struct ethtool_rxfh_context *ctx;
+ struct bnxt_rss_ctx *rss_ctx;
+ struct bnxt_vnic_info *vnic;
- req->dst_id = cpu_to_le16(vnic->fw_vnic_id);
- break;
- }
+ ctx = xa_load(&bp->dev->ethtool->rss_ctx,
+ fltr->base.fw_vnic_id);
+ if (ctx) {
+ rss_ctx = ethtool_rxfh_context_priv(ctx);
+ vnic = &rss_ctx->vnic;
+
+ req->dst_id = cpu_to_le16(vnic->fw_vnic_id);
}
return;
}
@@ -10222,16 +10225,17 @@ void bnxt_del_one_rss_ctx(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx,
vnic->rss_table,
vnic->rss_table_dma_addr);
kfree(rss_ctx->rss_indir_tbl);
- list_del(&rss_ctx->list);
bp->num_rss_ctx--;
}
static void bnxt_hwrm_realloc_rss_ctx_vnic(struct bnxt *bp)
{
bool set_tpa = !!(bp->flags & BNXT_FLAG_TPA);
- struct bnxt_rss_ctx *rss_ctx, *tmp;
+ struct ethtool_rxfh_context *ctx;
+ unsigned long context;
- list_for_each_entry_safe(rss_ctx, tmp, &bp->rss_ctx_list, list) {
+ xa_for_each(&bp->dev->ethtool->rss_ctx, context, ctx) {
+ struct bnxt_rss_ctx *rss_ctx = ethtool_rxfh_context_priv(ctx);
struct bnxt_vnic_info *vnic = &rss_ctx->vnic;
if (bnxt_hwrm_vnic_alloc(bp, vnic, 0, bp->rx_nr_rings) ||
@@ -10247,16 +10251,14 @@ static void bnxt_hwrm_realloc_rss_ctx_vnic(struct bnxt *bp)
void bnxt_clear_rss_ctxs(struct bnxt *bp)
{
- struct bnxt_rss_ctx *rss_ctx, *tmp;
+ struct ethtool_rxfh_context *ctx;
+ unsigned long context;
+
+ xa_for_each(&bp->dev->ethtool->rss_ctx, context, ctx) {
+ struct bnxt_rss_ctx *rss_ctx = ethtool_rxfh_context_priv(ctx);
- list_for_each_entry_safe(rss_ctx, tmp, &bp->rss_ctx_list, list)
bnxt_del_one_rss_ctx(bp, rss_ctx, false);
-}
-
-static void bnxt_init_multi_rss_ctx(struct bnxt *bp)
-{
- INIT_LIST_HEAD(&bp->rss_ctx_list);
- bp->rss_cap |= BNXT_RSS_CAP_MULTI_RSS_CTX;
+ }
}
/* Allow PF, trusted VFs and VFs with default VLAN to be in promiscuous mode */
@@ -15840,8 +15842,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
INIT_LIST_HEAD(&bp->usr_fltr_list);
if (BNXT_SUPPORTS_NTUPLE_VNIC(bp))
- bnxt_init_multi_rss_ctx(bp);
-
+ bp->rss_cap |= BNXT_RSS_CAP_MULTI_RSS_CTX;
rc = register_netdev(dev);
if (rc)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 21c3296cf6d9..be40e0513777 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1291,7 +1291,6 @@ struct bnxt_vnic_info {
};
struct bnxt_rss_ctx {
- struct list_head list;
struct bnxt_vnic_info vnic;
u16 *rss_indir_tbl;
u8 index;
@@ -2330,7 +2329,6 @@ struct bnxt {
/* grp_info indexed by completion ring index */
struct bnxt_ring_grp_info *grp_info;
struct bnxt_vnic_info *vnic_info;
- struct list_head rss_ctx_list;
u32 num_rss_ctx;
int nr_vnics;
u16 *rss_indir_tbl;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 2e6e060e2b44..74765583405b 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1210,12 +1210,12 @@ static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
static struct bnxt_rss_ctx *bnxt_get_rss_ctx_from_index(struct bnxt *bp,
u32 index)
{
- struct bnxt_rss_ctx *rss_ctx, *tmp;
+ struct ethtool_rxfh_context *ctx;
- list_for_each_entry_safe(rss_ctx, tmp, &bp->rss_ctx_list, list)
- if (rss_ctx->index == index)
- return rss_ctx;
- return NULL;
+ ctx = xa_load(&bp->dev->ethtool->rss_ctx, index);
+ if (!ctx)
+ return NULL;
+ return ethtool_rxfh_context_priv(ctx);
}
static int bnxt_alloc_rss_ctx_rss_table(struct bnxt *bp,
@@ -1903,7 +1903,6 @@ static int bnxt_create_rxfh_context(struct net_device *dev,
rss_ctx = ethtool_rxfh_context_priv(ctx);
- list_add_tail(&rss_ctx->list, &bp->rss_ctx_list);
bp->num_rss_ctx++;
vnic = &rss_ctx->vnic;
--
2.45.2
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