summaryrefslogtreecommitdiff
path: root/drivers/net
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/faraday/ftgmac100.h2
-rw-r--r--drivers/net/ethernet/marvell/octeontx2/af/rvu.h3
-rw-r--r--drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c59
-rw-r--r--drivers/net/phy/dp83822.c35
-rw-r--r--drivers/net/virtio_net.c95
5 files changed, 117 insertions, 77 deletions
diff --git a/drivers/net/ethernet/faraday/ftgmac100.h b/drivers/net/ethernet/faraday/ftgmac100.h
index 63b3e02fab16..4968f6f0bdbc 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.h
+++ b/drivers/net/ethernet/faraday/ftgmac100.h
@@ -84,7 +84,7 @@
FTGMAC100_INT_RPKT_BUF)
/* All the interrupts we care about */
-#define FTGMAC100_INT_ALL (FTGMAC100_INT_RPKT_BUF | \
+#define FTGMAC100_INT_ALL (FTGMAC100_INT_RXTX | \
FTGMAC100_INT_BAD)
/*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 03ee93fd9e94..db2db0738ee4 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -319,6 +319,7 @@ struct nix_mark_format {
/* smq(flush) to tl1 cir/pir info */
struct nix_smq_tree_ctx {
+ u16 schq;
u64 cir_off;
u64 cir_val;
u64 pir_off;
@@ -328,8 +329,6 @@ struct nix_smq_tree_ctx {
/* smq flush context */
struct nix_smq_flush_ctx {
int smq;
- u16 tl1_schq;
- u16 tl2_schq;
struct nix_smq_tree_ctx smq_tree_ctx[NIX_TXSCH_LVL_CNT];
};
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 222f9e00b836..82832a24fbd8 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -2259,14 +2259,13 @@ static void nix_smq_flush_fill_ctx(struct rvu *rvu, int blkaddr, int smq,
schq = smq;
for (lvl = NIX_TXSCH_LVL_SMQ; lvl <= NIX_TXSCH_LVL_TL1; lvl++) {
smq_tree_ctx = &smq_flush_ctx->smq_tree_ctx[lvl];
+ smq_tree_ctx->schq = schq;
if (lvl == NIX_TXSCH_LVL_TL1) {
- smq_flush_ctx->tl1_schq = schq;
smq_tree_ctx->cir_off = NIX_AF_TL1X_CIR(schq);
smq_tree_ctx->pir_off = 0;
smq_tree_ctx->pir_val = 0;
parent_off = 0;
} else if (lvl == NIX_TXSCH_LVL_TL2) {
- smq_flush_ctx->tl2_schq = schq;
smq_tree_ctx->cir_off = NIX_AF_TL2X_CIR(schq);
smq_tree_ctx->pir_off = NIX_AF_TL2X_PIR(schq);
parent_off = NIX_AF_TL2X_PARENT(schq);
@@ -2301,8 +2300,8 @@ static void nix_smq_flush_enadis_xoff(struct rvu *rvu, int blkaddr,
{
struct nix_txsch *txsch;
struct nix_hw *nix_hw;
+ int tl2, tl2_schq;
u64 regoff;
- int tl2;
nix_hw = get_nix_hw(rvu->hw, blkaddr);
if (!nix_hw)
@@ -2310,16 +2309,17 @@ static void nix_smq_flush_enadis_xoff(struct rvu *rvu, int blkaddr,
/* loop through all TL2s with matching PF_FUNC */
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL2];
+ tl2_schq = smq_flush_ctx->smq_tree_ctx[NIX_TXSCH_LVL_TL2].schq;
for (tl2 = 0; tl2 < txsch->schq.max; tl2++) {
/* skip the smq(flush) TL2 */
- if (tl2 == smq_flush_ctx->tl2_schq)
+ if (tl2 == tl2_schq)
continue;
/* skip unused TL2s */
if (TXSCH_MAP_FLAGS(txsch->pfvf_map[tl2]) & NIX_TXSCHQ_FREE)
continue;
/* skip if PF_FUNC doesn't match */
if ((TXSCH_MAP_FUNC(txsch->pfvf_map[tl2]) & ~RVU_PFVF_FUNC_MASK) !=
- (TXSCH_MAP_FUNC(txsch->pfvf_map[smq_flush_ctx->tl2_schq] &
+ (TXSCH_MAP_FUNC(txsch->pfvf_map[tl2_schq] &
~RVU_PFVF_FUNC_MASK)))
continue;
/* enable/disable XOFF */
@@ -2361,10 +2361,12 @@ static int nix_smq_flush(struct rvu *rvu, int blkaddr,
int smq, u16 pcifunc, int nixlf)
{
struct nix_smq_flush_ctx *smq_flush_ctx;
+ int err, restore_tx_en = 0, i;
int pf = rvu_get_pf(pcifunc);
u8 cgx_id = 0, lmac_id = 0;
- int err, restore_tx_en = 0;
- u64 cfg;
+ u16 tl2_tl3_link_schq;
+ u8 link, link_level;
+ u64 cfg, bmap = 0;
if (!is_rvu_otx2(rvu)) {
/* Skip SMQ flush if pkt count is zero */
@@ -2388,16 +2390,38 @@ static int nix_smq_flush(struct rvu *rvu, int blkaddr,
nix_smq_flush_enadis_xoff(rvu, blkaddr, smq_flush_ctx, true);
nix_smq_flush_enadis_rate(rvu, blkaddr, smq_flush_ctx, false);
- cfg = rvu_read64(rvu, blkaddr, NIX_AF_SMQX_CFG(smq));
- /* Do SMQ flush and set enqueue xoff */
- cfg |= BIT_ULL(50) | BIT_ULL(49);
- rvu_write64(rvu, blkaddr, NIX_AF_SMQX_CFG(smq), cfg);
-
/* Disable backpressure from physical link,
* otherwise SMQ flush may stall.
*/
rvu_cgx_enadis_rx_bp(rvu, pf, false);
+ link_level = rvu_read64(rvu, blkaddr, NIX_AF_PSE_CHANNEL_LEVEL) & 0x01 ?
+ NIX_TXSCH_LVL_TL3 : NIX_TXSCH_LVL_TL2;
+ tl2_tl3_link_schq = smq_flush_ctx->smq_tree_ctx[link_level].schq;
+ link = smq_flush_ctx->smq_tree_ctx[NIX_TXSCH_LVL_TL1].schq;
+
+ /* SMQ set enqueue xoff */
+ cfg = rvu_read64(rvu, blkaddr, NIX_AF_SMQX_CFG(smq));
+ cfg |= BIT_ULL(50);
+ rvu_write64(rvu, blkaddr, NIX_AF_SMQX_CFG(smq), cfg);
+
+ /* Clear all NIX_AF_TL3_TL2_LINK_CFG[ENA] for the TL3/TL2 queue */
+ for (i = 0; i < (rvu->hw->cgx_links + rvu->hw->lbk_links); i++) {
+ cfg = rvu_read64(rvu, blkaddr,
+ NIX_AF_TL3_TL2X_LINKX_CFG(tl2_tl3_link_schq, link));
+ if (!(cfg & BIT_ULL(12)))
+ continue;
+ bmap |= (1 << i);
+ cfg &= ~BIT_ULL(12);
+ rvu_write64(rvu, blkaddr,
+ NIX_AF_TL3_TL2X_LINKX_CFG(tl2_tl3_link_schq, link), cfg);
+ }
+
+ /* Do SMQ flush and set enqueue xoff */
+ cfg = rvu_read64(rvu, blkaddr, NIX_AF_SMQX_CFG(smq));
+ cfg |= BIT_ULL(50) | BIT_ULL(49);
+ rvu_write64(rvu, blkaddr, NIX_AF_SMQX_CFG(smq), cfg);
+
/* Wait for flush to complete */
err = rvu_poll_reg(rvu, blkaddr,
NIX_AF_SMQX_CFG(smq), BIT_ULL(49), true);
@@ -2406,6 +2430,17 @@ static int nix_smq_flush(struct rvu *rvu, int blkaddr,
"NIXLF%d: SMQ%d flush failed, txlink might be busy\n",
nixlf, smq);
+ /* Set NIX_AF_TL3_TL2_LINKX_CFG[ENA] for the TL3/TL2 queue */
+ for (i = 0; i < (rvu->hw->cgx_links + rvu->hw->lbk_links); i++) {
+ if (!(bmap & (1 << i)))
+ continue;
+ cfg = rvu_read64(rvu, blkaddr,
+ NIX_AF_TL3_TL2X_LINKX_CFG(tl2_tl3_link_schq, link));
+ cfg |= BIT_ULL(12);
+ rvu_write64(rvu, blkaddr,
+ NIX_AF_TL3_TL2X_LINKX_CFG(tl2_tl3_link_schq, link), cfg);
+ }
+
/* clear XOFF on TL2s */
nix_smq_flush_enadis_rate(rvu, blkaddr, smq_flush_ctx, true);
nix_smq_flush_enadis_xoff(rvu, blkaddr, smq_flush_ctx, false);
diff --git a/drivers/net/phy/dp83822.c b/drivers/net/phy/dp83822.c
index efeb643c1373..fc247f479257 100644
--- a/drivers/net/phy/dp83822.c
+++ b/drivers/net/phy/dp83822.c
@@ -271,8 +271,7 @@ static int dp83822_config_intr(struct phy_device *phydev)
DP83822_ENERGY_DET_INT_EN |
DP83822_LINK_QUAL_INT_EN);
- /* Private data pointer is NULL on DP83825 */
- if (!dp83822 || !dp83822->fx_enabled)
+ if (!dp83822->fx_enabled)
misr_status |= DP83822_ANEG_COMPLETE_INT_EN |
DP83822_DUP_MODE_CHANGE_INT_EN |
DP83822_SPEED_CHANGED_INT_EN;
@@ -292,8 +291,7 @@ static int dp83822_config_intr(struct phy_device *phydev)
DP83822_PAGE_RX_INT_EN |
DP83822_EEE_ERROR_CHANGE_INT_EN);
- /* Private data pointer is NULL on DP83825 */
- if (!dp83822 || !dp83822->fx_enabled)
+ if (!dp83822->fx_enabled)
misr_status |= DP83822_ANEG_ERR_INT_EN |
DP83822_WOL_PKT_INT_EN;
@@ -691,10 +689,9 @@ static int dp83822_read_straps(struct phy_device *phydev)
return 0;
}
-static int dp83822_probe(struct phy_device *phydev)
+static int dp8382x_probe(struct phy_device *phydev)
{
struct dp83822_private *dp83822;
- int ret;
dp83822 = devm_kzalloc(&phydev->mdio.dev, sizeof(*dp83822),
GFP_KERNEL);
@@ -703,6 +700,20 @@ static int dp83822_probe(struct phy_device *phydev)
phydev->priv = dp83822;
+ return 0;
+}
+
+static int dp83822_probe(struct phy_device *phydev)
+{
+ struct dp83822_private *dp83822;
+ int ret;
+
+ ret = dp8382x_probe(phydev);
+ if (ret)
+ return ret;
+
+ dp83822 = phydev->priv;
+
ret = dp83822_read_straps(phydev);
if (ret)
return ret;
@@ -717,14 +728,11 @@ static int dp83822_probe(struct phy_device *phydev)
static int dp83826_probe(struct phy_device *phydev)
{
- struct dp83822_private *dp83822;
-
- dp83822 = devm_kzalloc(&phydev->mdio.dev, sizeof(*dp83822),
- GFP_KERNEL);
- if (!dp83822)
- return -ENOMEM;
+ int ret;
- phydev->priv = dp83822;
+ ret = dp8382x_probe(phydev);
+ if (ret)
+ return ret;
dp83826_of_init(phydev);
@@ -795,6 +803,7 @@ static int dp83822_resume(struct phy_device *phydev)
PHY_ID_MATCH_MODEL(_id), \
.name = (_name), \
/* PHY_BASIC_FEATURES */ \
+ .probe = dp8382x_probe, \
.soft_reset = dp83822_phy_reset, \
.config_init = dp8382x_config_init, \
.get_wol = dp83822_get_wol, \
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index c6af18948092..5a1c1ec5a64b 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -356,6 +356,9 @@ struct receive_queue {
struct xdp_rxq_info xsk_rxq_info;
struct xdp_buff **xsk_buffs;
+
+ /* Do dma by self */
+ bool do_dma;
};
/* This structure can contain rss message with maximum settings for indirection table and keysize
@@ -885,7 +888,7 @@ static void *virtnet_rq_get_buf(struct receive_queue *rq, u32 *len, void **ctx)
void *buf;
buf = virtqueue_get_buf_ctx(rq->vq, len, ctx);
- if (buf)
+ if (buf && rq->do_dma)
virtnet_rq_unmap(rq, buf, *len);
return buf;
@@ -898,6 +901,11 @@ static void virtnet_rq_init_one_sg(struct receive_queue *rq, void *buf, u32 len)
u32 offset;
void *head;
+ if (!rq->do_dma) {
+ sg_init_one(rq->sg, buf, len);
+ return;
+ }
+
head = page_address(rq->alloc_frag.page);
offset = buf - head;
@@ -923,42 +931,44 @@ static void *virtnet_rq_alloc(struct receive_queue *rq, u32 size, gfp_t gfp)
head = page_address(alloc_frag->page);
- dma = head;
+ if (rq->do_dma) {
+ dma = head;
+
+ /* new pages */
+ if (!alloc_frag->offset) {
+ if (rq->last_dma) {
+ /* Now, the new page is allocated, the last dma
+ * will not be used. So the dma can be unmapped
+ * if the ref is 0.
+ */
+ virtnet_rq_unmap(rq, rq->last_dma, 0);
+ rq->last_dma = NULL;
+ }
- /* new pages */
- if (!alloc_frag->offset) {
- if (rq->last_dma) {
- /* Now, the new page is allocated, the last dma
- * will not be used. So the dma can be unmapped
- * if the ref is 0.
- */
- virtnet_rq_unmap(rq, rq->last_dma, 0);
- rq->last_dma = NULL;
- }
+ dma->len = alloc_frag->size - sizeof(*dma);
- dma->len = alloc_frag->size - sizeof(*dma);
+ addr = virtqueue_dma_map_single_attrs(rq->vq, dma + 1,
+ dma->len, DMA_FROM_DEVICE, 0);
+ if (virtqueue_dma_mapping_error(rq->vq, addr))
+ return NULL;
- addr = virtqueue_dma_map_single_attrs(rq->vq, dma + 1,
- dma->len, DMA_FROM_DEVICE, 0);
- if (virtqueue_dma_mapping_error(rq->vq, addr))
- return NULL;
+ dma->addr = addr;
+ dma->need_sync = virtqueue_dma_need_sync(rq->vq, addr);
- dma->addr = addr;
- dma->need_sync = virtqueue_dma_need_sync(rq->vq, addr);
+ /* Add a reference to dma to prevent the entire dma from
+ * being released during error handling. This reference
+ * will be freed after the pages are no longer used.
+ */
+ get_page(alloc_frag->page);
+ dma->ref = 1;
+ alloc_frag->offset = sizeof(*dma);
- /* Add a reference to dma to prevent the entire dma from
- * being released during error handling. This reference
- * will be freed after the pages are no longer used.
- */
- get_page(alloc_frag->page);
- dma->ref = 1;
- alloc_frag->offset = sizeof(*dma);
+ rq->last_dma = dma;
+ }
- rq->last_dma = dma;
+ ++dma->ref;
}
- ++dma->ref;
-
buf = head + alloc_frag->offset;
get_page(alloc_frag->page);
@@ -967,19 +977,6 @@ static void *virtnet_rq_alloc(struct receive_queue *rq, u32 size, gfp_t gfp)
return buf;
}
-static void virtnet_rq_set_premapped(struct virtnet_info *vi)
-{
- int i;
-
- /* disable for big mode */
- if (!vi->mergeable_rx_bufs && vi->big_packets)
- return;
-
- for (i = 0; i < vi->max_queue_pairs; i++)
- /* error should never happen */
- BUG_ON(virtqueue_set_dma_premapped(vi->rq[i].vq));
-}
-
static void virtnet_rq_unmap_free_buf(struct virtqueue *vq, void *buf)
{
struct virtnet_info *vi = vq->vdev->priv;
@@ -993,7 +990,7 @@ static void virtnet_rq_unmap_free_buf(struct virtqueue *vq, void *buf)
return;
}
- if (!vi->big_packets || vi->mergeable_rx_bufs)
+ if (rq->do_dma)
virtnet_rq_unmap(rq, buf, 0);
virtnet_rq_free_buf(vi, rq, buf);
@@ -2430,7 +2427,8 @@ static int add_recvbuf_small(struct virtnet_info *vi, struct receive_queue *rq,
err = virtqueue_add_inbuf_ctx(rq->vq, rq->sg, 1, buf, ctx, gfp);
if (err < 0) {
- virtnet_rq_unmap(rq, buf, 0);
+ if (rq->do_dma)
+ virtnet_rq_unmap(rq, buf, 0);
put_page(virt_to_head_page(buf));
}
@@ -2544,7 +2542,8 @@ static int add_recvbuf_mergeable(struct virtnet_info *vi,
ctx = mergeable_len_to_ctx(len + room, headroom);
err = virtqueue_add_inbuf_ctx(rq->vq, rq->sg, 1, buf, ctx, gfp);
if (err < 0) {
- virtnet_rq_unmap(rq, buf, 0);
+ if (rq->do_dma)
+ virtnet_rq_unmap(rq, buf, 0);
put_page(virt_to_head_page(buf));
}
@@ -2701,7 +2700,7 @@ static int virtnet_receive_packets(struct virtnet_info *vi,
}
} else {
while (packets < budget &&
- (buf = virtqueue_get_buf(rq->vq, &len)) != NULL) {
+ (buf = virtnet_rq_get_buf(rq, &len, NULL)) != NULL) {
receive_buf(vi, rq, buf, len, NULL, xdp_xmit, stats);
packets++;
}
@@ -5892,7 +5891,7 @@ static void free_receive_page_frags(struct virtnet_info *vi)
int i;
for (i = 0; i < vi->max_queue_pairs; i++)
if (vi->rq[i].alloc_frag.page) {
- if (vi->rq[i].last_dma)
+ if (vi->rq[i].do_dma && vi->rq[i].last_dma)
virtnet_rq_unmap(&vi->rq[i], vi->rq[i].last_dma, 0);
put_page(vi->rq[i].alloc_frag.page);
}
@@ -6090,8 +6089,6 @@ static int init_vqs(struct virtnet_info *vi)
if (ret)
goto err_free;
- virtnet_rq_set_premapped(vi);
-
cpus_read_lock();
virtnet_set_affinity(vi);
cpus_read_unlock();
generated by cgit (git 2.34.1) at 2025-06-06 01:08:21 +0000