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Message-ID: <20241127223855.3496785-2-dw@davidwei.uk>
Date: Wed, 27 Nov 2024 14:38:53 -0800
From: David Wei <dw@...idwei.uk>
To: netdev@...r.kernel.org,
Michael Chan <michael.chan@...adcom.com>,
Andy Gospodarek <andrew.gospodarek@...adcom.com>,
Somnath Kotur <somnath.kotur@...adcom.com>
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
David Wei <dw@...idwei.uk>
Subject: [PATCH net v2 1/3] bnxt_en: refactor tpa_info alloc/free into helpers
Refactor bnxt_rx_ring_info->tpa_info operations into helpers that work
on a single tpa_info in prep for queue API using them.
There are 2 pairs of operations:
* bnxt_alloc_one_tpa_info()
* bnxt_free_one_tpa_info()
These alloc/free the tpa_info array itself.
* bnxt_alloc_one_tpa_info_data()
* bnxt_free_one_tpa_info_data()
These alloc/free the frags stored in tpa_info array.
Reviewed-by: Somnath Kotur <somnath.kotur@...adcom.com>
Signed-off-by: David Wei <dw@...idwei.uk>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 142 ++++++++++++++--------
1 file changed, 90 insertions(+), 52 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 57e69c0552ab..38783d125d55 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3421,15 +3421,11 @@ static void bnxt_free_one_rx_agg_ring(struct bnxt *bp, struct bnxt_rx_ring_info
}
}
-static void bnxt_free_one_rx_ring_skbs(struct bnxt *bp, int ring_nr)
+static void bnxt_free_one_tpa_info_data(struct bnxt *bp,
+ struct bnxt_rx_ring_info *rxr)
{
- struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr];
- struct bnxt_tpa_idx_map *map;
int i;
- if (!rxr->rx_tpa)
- goto skip_rx_tpa_free;
-
for (i = 0; i < bp->max_tpa; i++) {
struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[i];
u8 *data = tpa_info->data;
@@ -3440,6 +3436,17 @@ static void bnxt_free_one_rx_ring_skbs(struct bnxt *bp, int ring_nr)
tpa_info->data = NULL;
page_pool_free_va(rxr->head_pool, data, false);
}
+}
+
+static void bnxt_free_one_rx_ring_skbs(struct bnxt *bp,
+ struct bnxt_rx_ring_info *rxr)
+{
+ struct bnxt_tpa_idx_map *map;
+
+ if (!rxr->rx_tpa)
+ goto skip_rx_tpa_free;
+
+ bnxt_free_one_tpa_info_data(bp, rxr);
skip_rx_tpa_free:
if (!rxr->rx_buf_ring)
@@ -3467,7 +3474,7 @@ static void bnxt_free_rx_skbs(struct bnxt *bp)
return;
for (i = 0; i < bp->rx_nr_rings; i++)
- bnxt_free_one_rx_ring_skbs(bp, i);
+ bnxt_free_one_rx_ring_skbs(bp, &bp->rx_ring[i]);
}
static void bnxt_free_skbs(struct bnxt *bp)
@@ -3608,29 +3615,64 @@ static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem)
return 0;
}
+static void bnxt_free_one_tpa_info(struct bnxt *bp,
+ struct bnxt_rx_ring_info *rxr)
+{
+ int i;
+
+ kfree(rxr->rx_tpa_idx_map);
+ rxr->rx_tpa_idx_map = NULL;
+ if (rxr->rx_tpa) {
+ for (i = 0; i < bp->max_tpa; i++) {
+ kfree(rxr->rx_tpa[i].agg_arr);
+ rxr->rx_tpa[i].agg_arr = NULL;
+ }
+ }
+ kfree(rxr->rx_tpa);
+ rxr->rx_tpa = NULL;
+}
+
static void bnxt_free_tpa_info(struct bnxt *bp)
{
- int i, j;
+ int i;
for (i = 0; i < bp->rx_nr_rings; i++) {
struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
- kfree(rxr->rx_tpa_idx_map);
- rxr->rx_tpa_idx_map = NULL;
- if (rxr->rx_tpa) {
- for (j = 0; j < bp->max_tpa; j++) {
- kfree(rxr->rx_tpa[j].agg_arr);
- rxr->rx_tpa[j].agg_arr = NULL;
- }
- }
- kfree(rxr->rx_tpa);
- rxr->rx_tpa = NULL;
+ bnxt_free_one_tpa_info(bp, rxr);
}
}
+static int bnxt_alloc_one_tpa_info(struct bnxt *bp,
+ struct bnxt_rx_ring_info *rxr)
+{
+ struct rx_agg_cmp *agg;
+ int i;
+
+ rxr->rx_tpa = kcalloc(bp->max_tpa, sizeof(struct bnxt_tpa_info),
+ GFP_KERNEL);
+ if (!rxr->rx_tpa)
+ return -ENOMEM;
+
+ if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS))
+ return 0;
+ for (i = 0; i < bp->max_tpa; i++) {
+ agg = kcalloc(MAX_SKB_FRAGS, sizeof(*agg), GFP_KERNEL);
+ if (!agg)
+ return -ENOMEM;
+ rxr->rx_tpa[i].agg_arr = agg;
+ }
+ rxr->rx_tpa_idx_map = kzalloc(sizeof(*rxr->rx_tpa_idx_map),
+ GFP_KERNEL);
+ if (!rxr->rx_tpa_idx_map)
+ return -ENOMEM;
+
+ return 0;
+}
+
static int bnxt_alloc_tpa_info(struct bnxt *bp)
{
- int i, j;
+ int i, rc;
bp->max_tpa = MAX_TPA;
if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) {
@@ -3641,25 +3683,10 @@ static int bnxt_alloc_tpa_info(struct bnxt *bp)
for (i = 0; i < bp->rx_nr_rings; i++) {
struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
- struct rx_agg_cmp *agg;
-
- rxr->rx_tpa = kcalloc(bp->max_tpa, sizeof(struct bnxt_tpa_info),
- GFP_KERNEL);
- if (!rxr->rx_tpa)
- return -ENOMEM;
- if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS))
- continue;
- for (j = 0; j < bp->max_tpa; j++) {
- agg = kcalloc(MAX_SKB_FRAGS, sizeof(*agg), GFP_KERNEL);
- if (!agg)
- return -ENOMEM;
- rxr->rx_tpa[j].agg_arr = agg;
- }
- rxr->rx_tpa_idx_map = kzalloc(sizeof(*rxr->rx_tpa_idx_map),
- GFP_KERNEL);
- if (!rxr->rx_tpa_idx_map)
- return -ENOMEM;
+ rc = bnxt_alloc_one_tpa_info(bp, rxr);
+ if (rc)
+ return rc;
}
return 0;
}
@@ -4268,10 +4295,31 @@ static void bnxt_alloc_one_rx_ring_page(struct bnxt *bp,
rxr->rx_agg_prod = prod;
}
+static int bnxt_alloc_one_tpa_info_data(struct bnxt *bp,
+ struct bnxt_rx_ring_info *rxr)
+{
+ dma_addr_t mapping;
+ u8 *data;
+ int i;
+
+ for (i = 0; i < bp->max_tpa; i++) {
+ data = __bnxt_alloc_rx_frag(bp, &mapping, rxr,
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ rxr->rx_tpa[i].data = data;
+ rxr->rx_tpa[i].data_ptr = data + bp->rx_offset;
+ rxr->rx_tpa[i].mapping = mapping;
+ }
+
+ return 0;
+}
+
static int bnxt_alloc_one_rx_ring(struct bnxt *bp, int ring_nr)
{
struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr];
- int i;
+ int rc;
bnxt_alloc_one_rx_ring_skb(bp, rxr, ring_nr);
@@ -4281,19 +4329,9 @@ static int bnxt_alloc_one_rx_ring(struct bnxt *bp, int ring_nr)
bnxt_alloc_one_rx_ring_page(bp, rxr, ring_nr);
if (rxr->rx_tpa) {
- dma_addr_t mapping;
- u8 *data;
-
- for (i = 0; i < bp->max_tpa; i++) {
- data = __bnxt_alloc_rx_frag(bp, &mapping, rxr,
- GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- rxr->rx_tpa[i].data = data;
- rxr->rx_tpa[i].data_ptr = data + bp->rx_offset;
- rxr->rx_tpa[i].mapping = mapping;
- }
+ rc = bnxt_alloc_one_tpa_info_data(bp, rxr);
+ if (rc)
+ return rc;
}
return 0;
}
@@ -13657,7 +13695,7 @@ static void bnxt_rx_ring_reset(struct bnxt *bp)
bnxt_reset_task(bp, true);
break;
}
- bnxt_free_one_rx_ring_skbs(bp, i);
+ bnxt_free_one_rx_ring_skbs(bp, rxr);
rxr->rx_prod = 0;
rxr->rx_agg_prod = 0;
rxr->rx_sw_agg_prod = 0;
--
2.43.5
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