summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/intel/ice/ice_xsk.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_xsk.c')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_xsk.c158
1 files changed, 79 insertions, 79 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c
index 5a9f61deeb38..ff55cb415b11 100644
--- a/drivers/net/ethernet/intel/ice/ice_xsk.c
+++ b/drivers/net/ethernet/intel/ice/ice_xsk.c
@@ -67,7 +67,7 @@ ice_qvec_toggle_napi(struct ice_vsi *vsi, struct ice_q_vector *q_vector,
* @q_vector: queue vector
*/
static void
-ice_qvec_dis_irq(struct ice_vsi *vsi, struct ice_ring *rx_ring,
+ice_qvec_dis_irq(struct ice_vsi *vsi, struct ice_rx_ring *rx_ring,
struct ice_q_vector *q_vector)
{
struct ice_pf *pf = vsi->back;
@@ -104,16 +104,17 @@ ice_qvec_cfg_msix(struct ice_vsi *vsi, struct ice_q_vector *q_vector)
u16 reg_idx = q_vector->reg_idx;
struct ice_pf *pf = vsi->back;
struct ice_hw *hw = &pf->hw;
- struct ice_ring *ring;
+ struct ice_tx_ring *tx_ring;
+ struct ice_rx_ring *rx_ring;
ice_cfg_itr(hw, q_vector);
- ice_for_each_ring(ring, q_vector->tx)
- ice_cfg_txq_interrupt(vsi, ring->reg_idx, reg_idx,
+ ice_for_each_tx_ring(tx_ring, q_vector->tx)
+ ice_cfg_txq_interrupt(vsi, tx_ring->reg_idx, reg_idx,
q_vector->tx.itr_idx);
- ice_for_each_ring(ring, q_vector->rx)
- ice_cfg_rxq_interrupt(vsi, ring->reg_idx, reg_idx,
+ ice_for_each_rx_ring(rx_ring, q_vector->rx)
+ ice_cfg_rxq_interrupt(vsi, rx_ring->reg_idx, reg_idx,
q_vector->rx.itr_idx);
ice_flush(hw);
@@ -144,8 +145,9 @@ static void ice_qvec_ena_irq(struct ice_vsi *vsi, struct ice_q_vector *q_vector)
static int ice_qp_dis(struct ice_vsi *vsi, u16 q_idx)
{
struct ice_txq_meta txq_meta = { };
- struct ice_ring *tx_ring, *rx_ring;
struct ice_q_vector *q_vector;
+ struct ice_tx_ring *tx_ring;
+ struct ice_rx_ring *rx_ring;
int timeout = 50;
int err;
@@ -171,7 +173,7 @@ static int ice_qp_dis(struct ice_vsi *vsi, u16 q_idx)
if (err)
return err;
if (ice_is_xdp_ena_vsi(vsi)) {
- struct ice_ring *xdp_ring = vsi->xdp_rings[q_idx];
+ struct ice_tx_ring *xdp_ring = vsi->xdp_rings[q_idx];
memset(&txq_meta, 0, sizeof(txq_meta));
ice_fill_txq_meta(vsi, xdp_ring, &txq_meta);
@@ -201,8 +203,9 @@ static int ice_qp_dis(struct ice_vsi *vsi, u16 q_idx)
static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx)
{
struct ice_aqc_add_tx_qgrp *qg_buf;
- struct ice_ring *tx_ring, *rx_ring;
struct ice_q_vector *q_vector;
+ struct ice_tx_ring *tx_ring;
+ struct ice_rx_ring *rx_ring;
u16 size;
int err;
@@ -225,7 +228,7 @@ static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx)
goto free_buf;
if (ice_is_xdp_ena_vsi(vsi)) {
- struct ice_ring *xdp_ring = vsi->xdp_rings[q_idx];
+ struct ice_tx_ring *xdp_ring = vsi->xdp_rings[q_idx];
memset(qg_buf, 0, size);
qg_buf->num_txqs = 1;
@@ -233,7 +236,7 @@ static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx)
if (err)
goto free_buf;
ice_set_ring_xdp(xdp_ring);
- xdp_ring->xsk_pool = ice_xsk_pool(xdp_ring);
+ xdp_ring->xsk_pool = ice_tx_xsk_pool(xdp_ring);
}
err = ice_vsi_cfg_rxq(rx_ring);
@@ -360,56 +363,50 @@ xsk_pool_if_up:
*
* Returns true if all allocations were successful, false if any fail.
*/
-bool ice_alloc_rx_bufs_zc(struct ice_ring *rx_ring, u16 count)
+bool ice_alloc_rx_bufs_zc(struct ice_rx_ring *rx_ring, u16 count)
{
union ice_32b_rx_flex_desc *rx_desc;
u16 ntu = rx_ring->next_to_use;
- struct ice_rx_buf *rx_buf;
- bool ok = true;
+ struct xdp_buff **xdp;
+ u32 nb_buffs, i;
dma_addr_t dma;
- if (!count)
- return true;
-
rx_desc = ICE_RX_DESC(rx_ring, ntu);
- rx_buf = &rx_ring->rx_buf[ntu];
+ xdp = &rx_ring->xdp_buf[ntu];
- do {
- rx_buf->xdp = xsk_buff_alloc(rx_ring->xsk_pool);
- if (!rx_buf->xdp) {
- ok = false;
- break;
- }
+ nb_buffs = min_t(u16, count, rx_ring->count - ntu);
+ nb_buffs = xsk_buff_alloc_batch(rx_ring->xsk_pool, xdp, nb_buffs);
+ if (!nb_buffs)
+ return false;
- dma = xsk_buff_xdp_get_dma(rx_buf->xdp);
+ i = nb_buffs;
+ while (i--) {
+ dma = xsk_buff_xdp_get_dma(*xdp);
rx_desc->read.pkt_addr = cpu_to_le64(dma);
- rx_desc->wb.status_error0 = 0;
rx_desc++;
- rx_buf++;
- ntu++;
-
- if (unlikely(ntu == rx_ring->count)) {
- rx_desc = ICE_RX_DESC(rx_ring, 0);
- rx_buf = rx_ring->rx_buf;
- ntu = 0;
- }
- } while (--count);
+ xdp++;
+ }
- if (rx_ring->next_to_use != ntu) {
- /* clear the status bits for the next_to_use descriptor */
- rx_desc->wb.status_error0 = 0;
- ice_release_rx_desc(rx_ring, ntu);
+ ntu += nb_buffs;
+ if (ntu == rx_ring->count) {
+ rx_desc = ICE_RX_DESC(rx_ring, 0);
+ xdp = rx_ring->xdp_buf;
+ ntu = 0;
}
- return ok;
+ /* clear the status bits for the next_to_use descriptor */
+ rx_desc->wb.status_error0 = 0;
+ ice_release_rx_desc(rx_ring, ntu);
+
+ return count == nb_buffs;
}
/**
* ice_bump_ntc - Bump the next_to_clean counter of an Rx ring
* @rx_ring: Rx ring
*/
-static void ice_bump_ntc(struct ice_ring *rx_ring)
+static void ice_bump_ntc(struct ice_rx_ring *rx_ring)
{
int ntc = rx_ring->next_to_clean + 1;
@@ -421,19 +418,19 @@ static void ice_bump_ntc(struct ice_ring *rx_ring)
/**
* ice_construct_skb_zc - Create an sk_buff from zero-copy buffer
* @rx_ring: Rx ring
- * @rx_buf: zero-copy Rx buffer
+ * @xdp_arr: Pointer to the SW ring of xdp_buff pointers
*
* This function allocates a new skb from a zero-copy Rx buffer.
*
* Returns the skb on success, NULL on failure.
*/
static struct sk_buff *
-ice_construct_skb_zc(struct ice_ring *rx_ring, struct ice_rx_buf *rx_buf)
+ice_construct_skb_zc(struct ice_rx_ring *rx_ring, struct xdp_buff **xdp_arr)
{
- unsigned int metasize = rx_buf->xdp->data - rx_buf->xdp->data_meta;
- unsigned int datasize = rx_buf->xdp->data_end - rx_buf->xdp->data;
- unsigned int datasize_hard = rx_buf->xdp->data_end -
- rx_buf->xdp->data_hard_start;
+ struct xdp_buff *xdp = *xdp_arr;
+ unsigned int metasize = xdp->data - xdp->data_meta;
+ unsigned int datasize = xdp->data_end - xdp->data;
+ unsigned int datasize_hard = xdp->data_end - xdp->data_hard_start;
struct sk_buff *skb;
skb = __napi_alloc_skb(&rx_ring->q_vector->napi, datasize_hard,
@@ -441,13 +438,13 @@ ice_construct_skb_zc(struct ice_ring *rx_ring, struct ice_rx_buf *rx_buf)
if (unlikely(!skb))
return NULL;
- skb_reserve(skb, rx_buf->xdp->data - rx_buf->xdp->data_hard_start);
- memcpy(__skb_put(skb, datasize), rx_buf->xdp->data, datasize);
+ skb_reserve(skb, xdp->data - xdp->data_hard_start);
+ memcpy(__skb_put(skb, datasize), xdp->data, datasize);
if (metasize)
skb_metadata_set(skb, metasize);
- xsk_buff_free(rx_buf->xdp);
- rx_buf->xdp = NULL;
+ xsk_buff_free(xdp);
+ *xdp_arr = NULL;
return skb;
}
@@ -455,22 +452,18 @@ ice_construct_skb_zc(struct ice_ring *rx_ring, struct ice_rx_buf *rx_buf)
* ice_run_xdp_zc - Executes an XDP program in zero-copy path
* @rx_ring: Rx ring
* @xdp: xdp_buff used as input to the XDP program
+ * @xdp_prog: XDP program to run
+ * @xdp_ring: ring to be used for XDP_TX action
*
* Returns any of ICE_XDP_{PASS, CONSUMED, TX, REDIR}
*/
static int
-ice_run_xdp_zc(struct ice_ring *rx_ring, struct xdp_buff *xdp)
+ice_run_xdp_zc(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp,
+ struct bpf_prog *xdp_prog, struct ice_tx_ring *xdp_ring)
{
int err, result = ICE_XDP_PASS;
- struct bpf_prog *xdp_prog;
- struct ice_ring *xdp_ring;
u32 act;
- /* ZC patch is enabled only when XDP program is set,
- * so here it can not be NULL
- */
- xdp_prog = READ_ONCE(rx_ring->xdp_prog);
-
act = bpf_prog_run_xdp(xdp_prog, xdp);
if (likely(act == XDP_REDIRECT)) {
@@ -484,7 +477,6 @@ ice_run_xdp_zc(struct ice_ring *rx_ring, struct xdp_buff *xdp)
case XDP_PASS:
break;
case XDP_TX:
- xdp_ring = rx_ring->vsi->xdp_rings[rx_ring->q_index];
result = ice_xmit_xdp_buff(xdp, xdp_ring);
if (result == ICE_XDP_CONSUMED)
goto out_failure;
@@ -511,17 +503,25 @@ out_failure:
*
* Returns number of processed packets on success, remaining budget on failure.
*/
-int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget)
+int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget)
{
unsigned int total_rx_bytes = 0, total_rx_packets = 0;
u16 cleaned_count = ICE_DESC_UNUSED(rx_ring);
+ struct ice_tx_ring *xdp_ring;
unsigned int xdp_xmit = 0;
+ struct bpf_prog *xdp_prog;
bool failure = false;
+ /* ZC patch is enabled only when XDP program is set,
+ * so here it can not be NULL
+ */
+ xdp_prog = READ_ONCE(rx_ring->xdp_prog);
+ xdp_ring = rx_ring->xdp_ring;
+
while (likely(total_rx_packets < (unsigned int)budget)) {
union ice_32b_rx_flex_desc *rx_desc;
unsigned int size, xdp_res = 0;
- struct ice_rx_buf *rx_buf;
+ struct xdp_buff **xdp;
struct sk_buff *skb;
u16 stat_err_bits;
u16 vlan_tag = 0;
@@ -544,18 +544,18 @@ int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget)
if (!size)
break;
- rx_buf = &rx_ring->rx_buf[rx_ring->next_to_clean];
- rx_buf->xdp->data_end = rx_buf->xdp->data + size;
- xsk_buff_dma_sync_for_cpu(rx_buf->xdp, rx_ring->xsk_pool);
+ xdp = &rx_ring->xdp_buf[rx_ring->next_to_clean];
+ xsk_buff_set_size(*xdp, size);
+ xsk_buff_dma_sync_for_cpu(*xdp, rx_ring->xsk_pool);
- xdp_res = ice_run_xdp_zc(rx_ring, rx_buf->xdp);
+ xdp_res = ice_run_xdp_zc(rx_ring, *xdp, xdp_prog, xdp_ring);
if (xdp_res) {
if (xdp_res & (ICE_XDP_TX | ICE_XDP_REDIR))
xdp_xmit |= xdp_res;
else
- xsk_buff_free(rx_buf->xdp);
+ xsk_buff_free(*xdp);
- rx_buf->xdp = NULL;
+ *xdp = NULL;
total_rx_bytes += size;
total_rx_packets++;
cleaned_count++;
@@ -565,7 +565,7 @@ int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget)
}
/* XDP_PASS path */
- skb = ice_construct_skb_zc(rx_ring, rx_buf);
+ skb = ice_construct_skb_zc(rx_ring, xdp);
if (!skb) {
rx_ring->rx_stats.alloc_buf_failed++;
break;
@@ -596,7 +596,7 @@ int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget)
if (cleaned_count >= ICE_RX_BUF_WRITE)
failure = !ice_alloc_rx_bufs_zc(rx_ring, cleaned_count);
- ice_finalize_xdp_rx(rx_ring, xdp_xmit);
+ ice_finalize_xdp_rx(xdp_ring, xdp_xmit);
ice_update_rx_ring_stats(rx_ring, total_rx_packets, total_rx_bytes);
if (xsk_uses_need_wakeup(rx_ring->xsk_pool)) {
@@ -618,7 +618,7 @@ int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget)
*
* Returns true if cleanup/transmission is done.
*/
-static bool ice_xmit_zc(struct ice_ring *xdp_ring, int budget)
+static bool ice_xmit_zc(struct ice_tx_ring *xdp_ring, int budget)
{
struct ice_tx_desc *tx_desc = NULL;
bool work_done = true;
@@ -669,7 +669,7 @@ static bool ice_xmit_zc(struct ice_ring *xdp_ring, int budget)
* @tx_buf: Tx buffer to clean
*/
static void
-ice_clean_xdp_tx_buf(struct ice_ring *xdp_ring, struct ice_tx_buf *tx_buf)
+ice_clean_xdp_tx_buf(struct ice_tx_ring *xdp_ring, struct ice_tx_buf *tx_buf)
{
xdp_return_frame((struct xdp_frame *)tx_buf->raw_buf);
dma_unmap_single(xdp_ring->dev, dma_unmap_addr(tx_buf, dma),
@@ -684,7 +684,7 @@ ice_clean_xdp_tx_buf(struct ice_ring *xdp_ring, struct ice_tx_buf *tx_buf)
*
* Returns true if cleanup/tranmission is done.
*/
-bool ice_clean_tx_irq_zc(struct ice_ring *xdp_ring, int budget)
+bool ice_clean_tx_irq_zc(struct ice_tx_ring *xdp_ring, int budget)
{
int total_packets = 0, total_bytes = 0;
s16 ntc = xdp_ring->next_to_clean;
@@ -757,7 +757,7 @@ ice_xsk_wakeup(struct net_device *netdev, u32 queue_id,
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_q_vector *q_vector;
struct ice_vsi *vsi = np->vsi;
- struct ice_ring *ring;
+ struct ice_tx_ring *ring;
if (test_bit(ICE_DOWN, vsi->state))
return -ENETDOWN;
@@ -808,17 +808,17 @@ bool ice_xsk_any_rx_ring_ena(struct ice_vsi *vsi)
* ice_xsk_clean_rx_ring - clean buffer pool queues connected to a given Rx ring
* @rx_ring: ring to be cleaned
*/
-void ice_xsk_clean_rx_ring(struct ice_ring *rx_ring)
+void ice_xsk_clean_rx_ring(struct ice_rx_ring *rx_ring)
{
u16 i;
for (i = 0; i < rx_ring->count; i++) {
- struct ice_rx_buf *rx_buf = &rx_ring->rx_buf[i];
+ struct xdp_buff **xdp = &rx_ring->xdp_buf[i];
- if (!rx_buf->xdp)
+ if (!xdp)
continue;
- rx_buf->xdp = NULL;
+ *xdp = NULL;
}
}
@@ -826,7 +826,7 @@ void ice_xsk_clean_rx_ring(struct ice_ring *rx_ring)
* ice_xsk_clean_xdp_ring - Clean the XDP Tx ring and its buffer pool queues
* @xdp_ring: XDP_Tx ring
*/
-void ice_xsk_clean_xdp_ring(struct ice_ring *xdp_ring)
+void ice_xsk_clean_xdp_ring(struct ice_tx_ring *xdp_ring)
{
u16 ntc = xdp_ring->next_to_clean, ntu = xdp_ring->next_to_use;
u32 xsk_frames = 0;
generated by cgit (git 2.34.1) at 2024-06-04 09:46:12 +0000