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Date: Wed, 11 Jan 2023 04:22:13 +0000
From: "Matthew Wilcox (Oracle)" <willy@...radead.org>
To: Jesper Dangaard Brouer <hawk@...nel.org>,
Ilias Apalodimas <ilias.apalodimas@...aro.org>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>,
netdev@...r.kernel.org, linux-mm@...ck.org,
Shakeel Butt <shakeelb@...gle.com>,
Tariq Toukan <tariqt@...dia.com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>
Subject: [PATCH v3 25/26] mlx5: Convert to netmem
Use the netmem APIs instead of the page_pool APIs. Possibly we should
add a netmem equivalent of skb_add_rx_frag(), but that can happen
later. Saves one call to compound_head() in the call to put_page()
in mlx5e_page_release_dynamic() which saves 58 bytes of text.
Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 10 +-
.../net/ethernet/mellanox/mlx5/core/en/txrx.h | 4 +-
.../net/ethernet/mellanox/mlx5/core/en/xdp.c | 24 ++--
.../net/ethernet/mellanox/mlx5/core/en/xdp.h | 2 +-
.../net/ethernet/mellanox/mlx5/core/en_main.c | 12 +-
.../net/ethernet/mellanox/mlx5/core/en_rx.c | 130 +++++++++---------
6 files changed, 94 insertions(+), 88 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 2d77fb8a8a01..35bff3b0d9f6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -467,7 +467,7 @@ struct mlx5e_txqsq {
} ____cacheline_aligned_in_smp;
union mlx5e_alloc_unit {
- struct page *page;
+ struct netmem *nmem;
struct xdp_buff *xsk;
};
@@ -501,7 +501,7 @@ struct mlx5e_xdp_info {
} frame;
struct {
struct mlx5e_rq *rq;
- struct page *page;
+ struct netmem *nmem;
} page;
};
};
@@ -619,7 +619,7 @@ struct mlx5e_mpw_info {
struct mlx5e_page_cache {
u32 head;
u32 tail;
- struct page *page_cache[MLX5E_CACHE_SIZE];
+ struct netmem *page_cache[MLX5E_CACHE_SIZE];
};
struct mlx5e_rq;
@@ -657,13 +657,13 @@ struct mlx5e_rq_frags_info {
struct mlx5e_dma_info {
dma_addr_t addr;
- struct page *page;
+ struct netmem *nmem;
};
struct mlx5e_shampo_hd {
u32 mkey;
struct mlx5e_dma_info *info;
- struct page *last_page;
+ struct netmem *last_nmem;
u16 hd_per_wq;
u16 hd_per_wqe;
unsigned long *bitmap;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
index 853f312cd757..688d3ea9aa36 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
@@ -65,8 +65,8 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget);
int mlx5e_poll_ico_cq(struct mlx5e_cq *cq);
/* RX */
-void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct page *page);
-void mlx5e_page_release_dynamic(struct mlx5e_rq *rq, struct page *page, bool recycle);
+void mlx5e_nmem_dma_unmap(struct mlx5e_rq *rq, struct netmem *nmem);
+void mlx5e_page_release_dynamic(struct mlx5e_rq *rq, struct netmem *nmem, bool recycle);
INDIRECT_CALLABLE_DECLARE(bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq));
INDIRECT_CALLABLE_DECLARE(bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq));
int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
index 20507ef2f956..878e4e9f0f8b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
@@ -32,6 +32,7 @@
#include <linux/bpf_trace.h>
#include <net/xdp_sock_drv.h>
+#include "en/txrx.h"
#include "en/xdp.h"
#include "en/params.h"
@@ -57,7 +58,7 @@ int mlx5e_xdp_max_mtu(struct mlx5e_params *params, struct mlx5e_xsk_param *xsk)
static inline bool
mlx5e_xmit_xdp_buff(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq,
- struct page *page, struct xdp_buff *xdp)
+ struct netmem *nmem, struct xdp_buff *xdp)
{
struct skb_shared_info *sinfo = NULL;
struct mlx5e_xmit_data xdptxd;
@@ -116,7 +117,7 @@ mlx5e_xmit_xdp_buff(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq,
xdpi.mode = MLX5E_XDP_XMIT_MODE_PAGE;
xdpi.page.rq = rq;
- dma_addr = page_pool_get_dma_addr(page) + (xdpf->data - (void *)xdpf);
+ dma_addr = netmem_get_dma_addr(nmem) + (xdpf->data - (void *)xdpf);
dma_sync_single_for_device(sq->pdev, dma_addr, xdptxd.len, DMA_BIDIRECTIONAL);
if (unlikely(xdp_frame_has_frags(xdpf))) {
@@ -127,7 +128,7 @@ mlx5e_xmit_xdp_buff(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq,
dma_addr_t addr;
u32 len;
- addr = page_pool_get_dma_addr(skb_frag_page(frag)) +
+ addr = netmem_get_dma_addr(skb_frag_netmem(frag)) +
skb_frag_off(frag);
len = skb_frag_size(frag);
dma_sync_single_for_device(sq->pdev, addr, len,
@@ -141,14 +142,14 @@ mlx5e_xmit_xdp_buff(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq,
mlx5e_xmit_xdp_frame, sq, &xdptxd, sinfo, 0)))
return false;
- xdpi.page.page = page;
+ xdpi.page.nmem = nmem;
mlx5e_xdpi_fifo_push(&sq->db.xdpi_fifo, &xdpi);
if (unlikely(xdp_frame_has_frags(xdpf))) {
for (i = 0; i < sinfo->nr_frags; i++) {
skb_frag_t *frag = &sinfo->frags[i];
- xdpi.page.page = skb_frag_page(frag);
+ xdpi.page.nmem = skb_frag_netmem(frag);
mlx5e_xdpi_fifo_push(&sq->db.xdpi_fifo, &xdpi);
}
}
@@ -157,7 +158,7 @@ mlx5e_xmit_xdp_buff(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq,
}
/* returns true if packet was consumed by xdp */
-bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct page *page,
+bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct netmem *nmem,
struct bpf_prog *prog, struct xdp_buff *xdp)
{
u32 act;
@@ -168,19 +169,19 @@ bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct page *page,
case XDP_PASS:
return false;
case XDP_TX:
- if (unlikely(!mlx5e_xmit_xdp_buff(rq->xdpsq, rq, page, xdp)))
+ if (unlikely(!mlx5e_xmit_xdp_buff(rq->xdpsq, rq, nmem, xdp)))
goto xdp_abort;
__set_bit(MLX5E_RQ_FLAG_XDP_XMIT, rq->flags); /* non-atomic */
return true;
case XDP_REDIRECT:
- /* When XDP enabled then page-refcnt==1 here */
+ /* When XDP enabled then nmem->refcnt==1 here */
err = xdp_do_redirect(rq->netdev, xdp, prog);
if (unlikely(err))
goto xdp_abort;
__set_bit(MLX5E_RQ_FLAG_XDP_XMIT, rq->flags);
__set_bit(MLX5E_RQ_FLAG_XDP_REDIRECT, rq->flags);
if (xdp->rxq->mem.type != MEM_TYPE_XSK_BUFF_POOL)
- mlx5e_page_dma_unmap(rq, page);
+ mlx5e_nmem_dma_unmap(rq, nmem);
rq->stats->xdp_redirect++;
return true;
default:
@@ -445,7 +446,7 @@ mlx5e_xmit_xdp_frame(struct mlx5e_xdpsq *sq, struct mlx5e_xmit_data *xdptxd,
skb_frag_t *frag = &sinfo->frags[i];
dma_addr_t addr;
- addr = page_pool_get_dma_addr(skb_frag_page(frag)) +
+ addr = netmem_get_dma_addr(skb_frag_netmem(frag)) +
skb_frag_off(frag);
dseg++;
@@ -495,7 +496,8 @@ static void mlx5e_free_xdpsq_desc(struct mlx5e_xdpsq *sq,
break;
case MLX5E_XDP_XMIT_MODE_PAGE:
/* XDP_TX from the regular RQ */
- mlx5e_page_release_dynamic(xdpi.page.rq, xdpi.page.page, recycle);
+ mlx5e_page_release_dynamic(xdpi.page.rq,
+ xdpi.page.nmem, recycle);
break;
case MLX5E_XDP_XMIT_MODE_XSK:
/* AF_XDP send */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h
index bc2d9034af5b..5bc875f131a2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h
@@ -46,7 +46,7 @@
struct mlx5e_xsk_param;
int mlx5e_xdp_max_mtu(struct mlx5e_params *params, struct mlx5e_xsk_param *xsk);
-bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct page *page,
+bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct netmem *nmem,
struct bpf_prog *prog, struct xdp_buff *xdp);
void mlx5e_xdp_mpwqe_complete(struct mlx5e_xdpsq *sq);
bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index cff5f2e29e1e..7c2a1ecd730b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -555,16 +555,18 @@ static void mlx5e_rq_err_cqe_work(struct work_struct *recover_work)
static int mlx5e_alloc_mpwqe_rq_drop_page(struct mlx5e_rq *rq)
{
- rq->wqe_overflow.page = alloc_page(GFP_KERNEL);
- if (!rq->wqe_overflow.page)
+ struct page *page = alloc_page(GFP_KERNEL);
+ if (!page)
return -ENOMEM;
- rq->wqe_overflow.addr = dma_map_page(rq->pdev, rq->wqe_overflow.page, 0,
+ rq->wqe_overflow.addr = dma_map_page(rq->pdev, page, 0,
PAGE_SIZE, rq->buff.map_dir);
if (dma_mapping_error(rq->pdev, rq->wqe_overflow.addr)) {
- __free_page(rq->wqe_overflow.page);
+ __free_page(page);
return -ENOMEM;
}
+
+ rq->wqe_overflow.nmem = page_netmem(page);
return 0;
}
@@ -572,7 +574,7 @@ static void mlx5e_free_mpwqe_rq_drop_page(struct mlx5e_rq *rq)
{
dma_unmap_page(rq->pdev, rq->wqe_overflow.addr, PAGE_SIZE,
rq->buff.map_dir);
- __free_page(rq->wqe_overflow.page);
+ __free_page(netmem_page(rq->wqe_overflow.nmem));
}
static int mlx5e_init_rxq_rq(struct mlx5e_channel *c, struct mlx5e_params *params,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index c8820ab22169..000489ac0907 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -274,7 +274,7 @@ static inline u32 mlx5e_decompress_cqes_start(struct mlx5e_rq *rq,
return mlx5e_decompress_cqes_cont(rq, wq, 1, budget_rem);
}
-static inline bool mlx5e_rx_cache_put(struct mlx5e_rq *rq, struct page *page)
+static inline bool mlx5e_rx_cache_put(struct mlx5e_rq *rq, struct netmem *nmem)
{
struct mlx5e_page_cache *cache = &rq->page_cache;
u32 tail_next = (cache->tail + 1) & (MLX5E_CACHE_SIZE - 1);
@@ -285,12 +285,12 @@ static inline bool mlx5e_rx_cache_put(struct mlx5e_rq *rq, struct page *page)
return false;
}
- if (!dev_page_is_reusable(page)) {
+ if (!dev_page_is_reusable(netmem_page(nmem))) {
stats->cache_waive++;
return false;
}
- cache->page_cache[cache->tail] = page;
+ cache->page_cache[cache->tail] = nmem;
cache->tail = tail_next;
return true;
}
@@ -306,16 +306,16 @@ static inline bool mlx5e_rx_cache_get(struct mlx5e_rq *rq, union mlx5e_alloc_uni
return false;
}
- if (page_ref_count(cache->page_cache[cache->head]) != 1) {
+ if (netmem_ref_count(cache->page_cache[cache->head]) != 1) {
stats->cache_busy++;
return false;
}
- au->page = cache->page_cache[cache->head];
+ au->nmem = cache->page_cache[cache->head];
cache->head = (cache->head + 1) & (MLX5E_CACHE_SIZE - 1);
stats->cache_reuse++;
- addr = page_pool_get_dma_addr(au->page);
+ addr = netmem_get_dma_addr(au->nmem);
/* Non-XSK always uses PAGE_SIZE. */
dma_sync_single_for_device(rq->pdev, addr, PAGE_SIZE, rq->buff.map_dir);
return true;
@@ -328,43 +328,45 @@ static inline int mlx5e_page_alloc_pool(struct mlx5e_rq *rq, union mlx5e_alloc_u
if (mlx5e_rx_cache_get(rq, au))
return 0;
- au->page = page_pool_dev_alloc_pages(rq->page_pool);
- if (unlikely(!au->page))
+ au->nmem = page_pool_dev_alloc_netmem(rq->page_pool);
+ if (unlikely(!au->nmem))
return -ENOMEM;
/* Non-XSK always uses PAGE_SIZE. */
- addr = dma_map_page(rq->pdev, au->page, 0, PAGE_SIZE, rq->buff.map_dir);
+ addr = dma_map_page(rq->pdev, netmem_page(au->nmem), 0, PAGE_SIZE,
+ rq->buff.map_dir);
if (unlikely(dma_mapping_error(rq->pdev, addr))) {
- page_pool_recycle_direct(rq->page_pool, au->page);
- au->page = NULL;
+ page_pool_recycle_direct(rq->page_pool, au->nmem);
+ au->nmem = NULL;
return -ENOMEM;
}
- page_pool_set_dma_addr(au->page, addr);
+ netmem_set_dma_addr(au->nmem, addr);
return 0;
}
-void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct page *page)
+void mlx5e_nmem_dma_unmap(struct mlx5e_rq *rq, struct netmem *nmem)
{
- dma_addr_t dma_addr = page_pool_get_dma_addr(page);
+ dma_addr_t dma_addr = netmem_get_dma_addr(nmem);
dma_unmap_page_attrs(rq->pdev, dma_addr, PAGE_SIZE, rq->buff.map_dir,
DMA_ATTR_SKIP_CPU_SYNC);
- page_pool_set_dma_addr(page, 0);
+ netmem_set_dma_addr(nmem, 0);
}
-void mlx5e_page_release_dynamic(struct mlx5e_rq *rq, struct page *page, bool recycle)
+void mlx5e_page_release_dynamic(struct mlx5e_rq *rq, struct netmem *nmem,
+ bool recycle)
{
if (likely(recycle)) {
- if (mlx5e_rx_cache_put(rq, page))
+ if (mlx5e_rx_cache_put(rq, nmem))
return;
- mlx5e_page_dma_unmap(rq, page);
- page_pool_recycle_direct(rq->page_pool, page);
+ mlx5e_nmem_dma_unmap(rq, nmem);
+ page_pool_recycle_direct(rq->page_pool, nmem);
} else {
- mlx5e_page_dma_unmap(rq, page);
- page_pool_release_page(rq->page_pool, page);
- put_page(page);
+ mlx5e_nmem_dma_unmap(rq, nmem);
+ page_pool_release_netmem(rq->page_pool, nmem);
+ netmem_put(nmem);
}
}
@@ -389,7 +391,7 @@ static inline void mlx5e_put_rx_frag(struct mlx5e_rq *rq,
bool recycle)
{
if (frag->last_in_page)
- mlx5e_page_release_dynamic(rq, frag->au->page, recycle);
+ mlx5e_page_release_dynamic(rq, frag->au->nmem, recycle);
}
static inline struct mlx5e_wqe_frag_info *get_frag(struct mlx5e_rq *rq, u16 ix)
@@ -413,7 +415,7 @@ static int mlx5e_alloc_rx_wqe(struct mlx5e_rq *rq, struct mlx5e_rx_wqe_cyc *wqe,
goto free_frags;
headroom = i == 0 ? rq->buff.headroom : 0;
- addr = page_pool_get_dma_addr(frag->au->page);
+ addr = netmem_get_dma_addr(frag->au->nmem);
wqe->data[i].addr = cpu_to_be64(addr + frag->offset + headroom);
}
@@ -475,21 +477,21 @@ mlx5e_add_skb_frag(struct mlx5e_rq *rq, struct sk_buff *skb,
union mlx5e_alloc_unit *au, u32 frag_offset, u32 len,
unsigned int truesize)
{
- dma_addr_t addr = page_pool_get_dma_addr(au->page);
+ dma_addr_t addr = netmem_get_dma_addr(au->nmem);
dma_sync_single_for_cpu(rq->pdev, addr + frag_offset, len,
rq->buff.map_dir);
- page_ref_inc(au->page);
+ netmem_get(au->nmem);
skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
- au->page, frag_offset, len, truesize);
+ netmem_page(au->nmem), frag_offset, len, truesize);
}
static inline void
mlx5e_copy_skb_header(struct mlx5e_rq *rq, struct sk_buff *skb,
- struct page *page, dma_addr_t addr,
+ struct netmem *nmem, dma_addr_t addr,
int offset_from, int dma_offset, u32 headlen)
{
- const void *from = page_address(page) + offset_from;
+ const void *from = netmem_address(nmem) + offset_from;
/* Aligning len to sizeof(long) optimizes memcpy performance */
unsigned int len = ALIGN(headlen, sizeof(long));
@@ -522,7 +524,7 @@ mlx5e_free_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi, bool recycle
} else {
for (i = 0; i < rq->mpwqe.pages_per_wqe; i++)
if (no_xdp_xmit || !test_bit(i, wi->xdp_xmit_bitmap))
- mlx5e_page_release_dynamic(rq, alloc_units[i].page, recycle);
+ mlx5e_page_release_dynamic(rq, alloc_units[i].nmem, recycle);
}
}
@@ -586,7 +588,7 @@ static int mlx5e_build_shampo_hd_umr(struct mlx5e_rq *rq,
struct mlx5e_shampo_hd *shampo = rq->mpwqe.shampo;
u16 entries, pi, header_offset, err, wqe_bbs, new_entries;
u32 lkey = rq->mdev->mlx5e_res.hw_objs.mkey;
- struct page *page = shampo->last_page;
+ struct netmem *nmem = shampo->last_nmem;
u64 addr = shampo->last_addr;
struct mlx5e_dma_info *dma_info;
struct mlx5e_umr_wqe *umr_wqe;
@@ -613,11 +615,11 @@ static int mlx5e_build_shampo_hd_umr(struct mlx5e_rq *rq,
err = mlx5e_page_alloc_pool(rq, &au);
if (unlikely(err))
goto err_unmap;
- page = dma_info->page = au.page;
- addr = dma_info->addr = page_pool_get_dma_addr(au.page);
+ nmem = dma_info->nmem = au.nmem;
+ addr = dma_info->addr = netmem_get_dma_addr(au.nmem);
} else {
dma_info->addr = addr + header_offset;
- dma_info->page = page;
+ dma_info->nmem = nmem;
}
update_klm:
@@ -635,7 +637,7 @@ static int mlx5e_build_shampo_hd_umr(struct mlx5e_rq *rq,
};
shampo->pi = (shampo->pi + new_entries) & (shampo->hd_per_wq - 1);
- shampo->last_page = page;
+ shampo->last_nmem = nmem;
shampo->last_addr = addr;
sq->pc += wqe_bbs;
sq->doorbell_cseg = &umr_wqe->ctrl;
@@ -647,7 +649,7 @@ static int mlx5e_build_shampo_hd_umr(struct mlx5e_rq *rq,
dma_info = &shampo->info[--index];
if (!(i & (MLX5E_SHAMPO_WQ_HEADER_PER_PAGE - 1))) {
dma_info->addr = ALIGN_DOWN(dma_info->addr, PAGE_SIZE);
- mlx5e_page_release_dynamic(rq, dma_info->page, true);
+ mlx5e_page_release_dynamic(rq, dma_info->nmem, true);
}
}
rq->stats->buff_alloc_err++;
@@ -721,7 +723,7 @@ static int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix)
err = mlx5e_page_alloc_pool(rq, au);
if (unlikely(err))
goto err_unmap;
- addr = page_pool_get_dma_addr(au->page);
+ addr = netmem_get_dma_addr(au->nmem);
umr_wqe->inline_mtts[i] = (struct mlx5_mtt) {
.ptag = cpu_to_be64(addr | MLX5_EN_WR),
};
@@ -763,7 +765,7 @@ static int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix)
err_unmap:
while (--i >= 0) {
au--;
- mlx5e_page_release_dynamic(rq, au->page, true);
+ mlx5e_page_release_dynamic(rq, au->nmem, true);
}
err:
@@ -782,7 +784,7 @@ void mlx5e_shampo_dealloc_hd(struct mlx5e_rq *rq, u16 len, u16 start, bool close
{
struct mlx5e_shampo_hd *shampo = rq->mpwqe.shampo;
int hd_per_wq = shampo->hd_per_wq;
- struct page *deleted_page = NULL;
+ struct netmem *deleted_nmem = NULL;
struct mlx5e_dma_info *hd_info;
int i, index = start;
@@ -795,9 +797,9 @@ void mlx5e_shampo_dealloc_hd(struct mlx5e_rq *rq, u16 len, u16 start, bool close
hd_info = &shampo->info[index];
hd_info->addr = ALIGN_DOWN(hd_info->addr, PAGE_SIZE);
- if (hd_info->page != deleted_page) {
- deleted_page = hd_info->page;
- mlx5e_page_release_dynamic(rq, hd_info->page, false);
+ if (hd_info->nmem != deleted_nmem) {
+ deleted_nmem = hd_info->nmem;
+ mlx5e_page_release_dynamic(rq, hd_info->nmem, false);
}
}
@@ -1136,7 +1138,7 @@ static void *mlx5e_shampo_get_packet_hd(struct mlx5e_rq *rq, u16 header_index)
struct mlx5e_dma_info *last_head = &rq->mpwqe.shampo->info[header_index];
u16 head_offset = (last_head->addr & (PAGE_SIZE - 1)) + rq->buff.headroom;
- return page_address(last_head->page) + head_offset;
+ return netmem_address(last_head->nmem) + head_offset;
}
static void mlx5e_shampo_update_ipv4_udp_hdr(struct mlx5e_rq *rq, struct iphdr *ipv4)
@@ -1595,11 +1597,11 @@ mlx5e_skb_from_cqe_linear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi,
dma_addr_t addr;
u32 frag_size;
- va = page_address(au->page) + wi->offset;
+ va = netmem_address(au->nmem) + wi->offset;
data = va + rx_headroom;
frag_size = MLX5_SKB_FRAG_SZ(rx_headroom + cqe_bcnt);
- addr = page_pool_get_dma_addr(au->page);
+ addr = netmem_get_dma_addr(au->nmem);
dma_sync_single_range_for_cpu(rq->pdev, addr, wi->offset,
frag_size, rq->buff.map_dir);
net_prefetch(data);
@@ -1610,7 +1612,7 @@ mlx5e_skb_from_cqe_linear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi,
net_prefetchw(va); /* xdp_frame data area */
mlx5e_fill_xdp_buff(rq, va, rx_headroom, cqe_bcnt, &xdp);
- if (mlx5e_xdp_handle(rq, au->page, prog, &xdp))
+ if (mlx5e_xdp_handle(rq, au->nmem, prog, &xdp))
return NULL; /* page/packet was consumed by XDP */
rx_headroom = xdp.data - xdp.data_hard_start;
@@ -1623,7 +1625,7 @@ mlx5e_skb_from_cqe_linear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi,
return NULL;
/* queue up for recycling/reuse */
- page_ref_inc(au->page);
+ netmem_get(au->nmem);
return skb;
}
@@ -1645,10 +1647,10 @@ mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi
u32 truesize;
void *va;
- va = page_address(au->page) + wi->offset;
+ va = netmem_address(au->nmem) + wi->offset;
frag_consumed_bytes = min_t(u32, frag_info->frag_size, cqe_bcnt);
- addr = page_pool_get_dma_addr(au->page);
+ addr = netmem_get_dma_addr(au->nmem);
dma_sync_single_range_for_cpu(rq->pdev, addr, wi->offset,
rq->buff.frame0_sz, rq->buff.map_dir);
net_prefetchw(va); /* xdp_frame data area */
@@ -1669,7 +1671,7 @@ mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi
frag_consumed_bytes = min_t(u32, frag_info->frag_size, cqe_bcnt);
- addr = page_pool_get_dma_addr(au->page);
+ addr = netmem_get_dma_addr(au->nmem);
dma_sync_single_for_cpu(rq->pdev, addr + wi->offset,
frag_consumed_bytes, rq->buff.map_dir);
@@ -1683,11 +1685,11 @@ mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi
}
frag = &sinfo->frags[sinfo->nr_frags++];
- __skb_frag_set_page(frag, au->page);
+ __skb_frag_set_netmem(frag, au->nmem);
skb_frag_off_set(frag, wi->offset);
skb_frag_size_set(frag, frag_consumed_bytes);
- if (page_is_pfmemalloc(au->page))
+ if (netmem_is_pfmemalloc(au->nmem))
xdp_buff_set_frag_pfmemalloc(&xdp);
sinfo->xdp_frags_size += frag_consumed_bytes;
@@ -1701,7 +1703,7 @@ mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi
au = head_wi->au;
prog = rcu_dereference(rq->xdp_prog);
- if (prog && mlx5e_xdp_handle(rq, au->page, prog, &xdp)) {
+ if (prog && mlx5e_xdp_handle(rq, au->nmem, prog, &xdp)) {
if (test_bit(MLX5E_RQ_FLAG_XDP_XMIT, rq->flags)) {
int i;
@@ -1718,7 +1720,7 @@ mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi
if (unlikely(!skb))
return NULL;
- page_ref_inc(au->page);
+ netmem_get(au->nmem);
if (unlikely(xdp_buff_has_frags(&xdp))) {
int i;
@@ -1967,8 +1969,8 @@ mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *w
mlx5e_fill_skb_data(skb, rq, au, byte_cnt, frag_offset);
/* copy header */
- addr = page_pool_get_dma_addr(head_au->page);
- mlx5e_copy_skb_header(rq, skb, head_au->page, addr,
+ addr = netmem_get_dma_addr(head_au->nmem);
+ mlx5e_copy_skb_header(rq, skb, head_au->nmem, addr,
head_offset, head_offset, headlen);
/* skb linear part was allocated with headlen and aligned to long */
skb->tail += headlen;
@@ -1996,11 +1998,11 @@ mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
return NULL;
}
- va = page_address(au->page) + head_offset;
+ va = netmem_address(au->nmem) + head_offset;
data = va + rx_headroom;
frag_size = MLX5_SKB_FRAG_SZ(rx_headroom + cqe_bcnt);
- addr = page_pool_get_dma_addr(au->page);
+ addr = netmem_get_dma_addr(au->nmem);
dma_sync_single_range_for_cpu(rq->pdev, addr, head_offset,
frag_size, rq->buff.map_dir);
net_prefetch(data);
@@ -2011,7 +2013,7 @@ mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
net_prefetchw(va); /* xdp_frame data area */
mlx5e_fill_xdp_buff(rq, va, rx_headroom, cqe_bcnt, &xdp);
- if (mlx5e_xdp_handle(rq, au->page, prog, &xdp)) {
+ if (mlx5e_xdp_handle(rq, au->nmem, prog, &xdp)) {
if (__test_and_clear_bit(MLX5E_RQ_FLAG_XDP_XMIT, rq->flags))
__set_bit(page_idx, wi->xdp_xmit_bitmap); /* non-atomic */
return NULL; /* page/packet was consumed by XDP */
@@ -2027,7 +2029,7 @@ mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
return NULL;
/* queue up for recycling/reuse */
- page_ref_inc(au->page);
+ netmem_get(au->nmem);
return skb;
}
@@ -2044,7 +2046,7 @@ mlx5e_skb_from_cqe_shampo(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
void *hdr, *data;
u32 frag_size;
- hdr = page_address(head->page) + head_offset;
+ hdr = netmem_address(head->nmem) + head_offset;
data = hdr + rx_headroom;
frag_size = MLX5_SKB_FRAG_SZ(rx_headroom + head_size);
@@ -2059,7 +2061,7 @@ mlx5e_skb_from_cqe_shampo(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
return NULL;
/* queue up for recycling/reuse */
- page_ref_inc(head->page);
+ netmem_get(head->nmem);
} else {
/* allocate SKB and copy header for large header */
@@ -2072,7 +2074,7 @@ mlx5e_skb_from_cqe_shampo(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
}
prefetchw(skb->data);
- mlx5e_copy_skb_header(rq, skb, head->page, head->addr,
+ mlx5e_copy_skb_header(rq, skb, head->nmem, head->addr,
head_offset + rx_headroom,
rx_headroom, head_size);
/* skb linear part was allocated with headlen and aligned to long */
@@ -2124,7 +2126,7 @@ mlx5e_free_rx_shampo_hd_entry(struct mlx5e_rq *rq, u16 header_index)
if (((header_index + 1) & (MLX5E_SHAMPO_WQ_HEADER_PER_PAGE - 1)) == 0) {
shampo->info[header_index].addr = ALIGN_DOWN(addr, PAGE_SIZE);
- mlx5e_page_release_dynamic(rq, shampo->info[header_index].page, true);
+ mlx5e_page_release_dynamic(rq, shampo->info[header_index].nmem, true);
}
bitmap_clear(shampo->bitmap, header_index, 1);
}
--
2.35.1
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