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Message-ID: <20170208234127.3041579-4-tom@herbertland.com>
Date: Wed, 8 Feb 2017 15:41:22 -0800
From: Tom Herbert <tom@...bertland.com>
To: <netdev@...r.kernel.org>
CC: <kernel-team@...com>
Subject: [PATCH RFC v2 3/8] nfp: Changes to use generic XDP infrastructure
Change XDP program management functional interface to correspond to new
XDP API.
Signed-off-by: Tom Herbert <tom@...bertland.com>
---
drivers/net/ethernet/netronome/nfp/nfp_net.h | 5 +-
.../net/ethernet/netronome/nfp/nfp_net_common.c | 172 ++++++++++-----------
.../net/ethernet/netronome/nfp/nfp_net_ethtool.c | 12 +-
3 files changed, 87 insertions(+), 102 deletions(-)
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h
index 2115f44..09a315e 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h
@@ -504,14 +504,13 @@ struct nfp_net {
unsigned fw_loaded:1;
unsigned bpf_offload_skip_sw:1;
unsigned bpf_offload_xdp:1;
+ unsigned xdp_enabled:1;
u32 ctrl;
u32 fl_bufsz;
u32 rx_offset;
- struct bpf_prog *xdp_prog;
-
struct nfp_net_tx_ring *tx_rings;
struct nfp_net_rx_ring *rx_rings;
@@ -792,7 +791,7 @@ void nfp_net_coalesce_write_cfg(struct nfp_net *nn);
int nfp_net_irqs_alloc(struct nfp_net *nn);
void nfp_net_irqs_disable(struct nfp_net *nn);
int
-nfp_net_ring_reconfig(struct nfp_net *nn, struct bpf_prog **xdp_prog,
+nfp_net_ring_reconfig(struct nfp_net *nn,
struct nfp_net_ring_set *rx, struct nfp_net_ring_set *tx);
#ifdef CONFIG_NFP_NET_DEBUG
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 6ac43ab..2dee867 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -65,6 +65,7 @@
#include <net/pkt_cls.h>
#include <net/vxlan.h>
+#include <net/xdp.h>
#include "nfp_net_ctrl.h"
#include "nfp_net.h"
@@ -1166,10 +1167,10 @@ nfp_net_napi_alloc_one(struct nfp_net *nn, int direction, dma_addr_t *dma_addr)
{
void *frag;
- if (!nn->xdp_prog)
- frag = napi_alloc_frag(nn->fl_bufsz);
- else
+ if (nn->xdp_enabled)
frag = page_address(alloc_page(GFP_ATOMIC | __GFP_COLD));
+ else
+ frag = napi_alloc_frag(nn->fl_bufsz);
if (!frag) {
nn_warn_ratelimit(nn, "Failed to alloc receive page frag\n");
return NULL;
@@ -1177,7 +1178,7 @@ nfp_net_napi_alloc_one(struct nfp_net *nn, int direction, dma_addr_t *dma_addr)
*dma_addr = nfp_net_dma_map_rx(nn, frag, nn->fl_bufsz, direction);
if (dma_mapping_error(&nn->pdev->dev, *dma_addr)) {
- nfp_net_free_frag(frag, nn->xdp_prog);
+ nfp_net_free_frag(frag, nn->xdp_enabled);
nn_warn_ratelimit(nn, "Failed to map DMA RX buffer\n");
return NULL;
}
@@ -1248,17 +1249,15 @@ static void nfp_net_rx_ring_reset(struct nfp_net_rx_ring *rx_ring)
* nfp_net_rx_ring_bufs_free() - Free any buffers currently on the RX ring
* @nn: NFP Net device
* @rx_ring: RX ring to remove buffers from
- * @xdp: Whether XDP is enabled
*
* Assumes that the device is stopped and buffers are in [0, ring->cnt - 1)
* entries. After device is disabled nfp_net_rx_ring_reset() must be called
* to restore required ring geometry.
*/
static void
-nfp_net_rx_ring_bufs_free(struct nfp_net *nn, struct nfp_net_rx_ring *rx_ring,
- bool xdp)
+nfp_net_rx_ring_bufs_free(struct nfp_net *nn, struct nfp_net_rx_ring *rx_ring)
{
- int direction = xdp ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE;
+ int direction = nn->xdp_enabled ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE;
unsigned int i;
for (i = 0; i < rx_ring->cnt - 1; i++) {
@@ -1271,7 +1270,7 @@ nfp_net_rx_ring_bufs_free(struct nfp_net *nn, struct nfp_net_rx_ring *rx_ring,
nfp_net_dma_unmap_rx(nn, rx_ring->rxbufs[i].dma_addr,
rx_ring->bufsz, direction);
- nfp_net_free_frag(rx_ring->rxbufs[i].frag, xdp);
+ nfp_net_free_frag(rx_ring->rxbufs[i].frag, nn->xdp_enabled);
rx_ring->rxbufs[i].dma_addr = 0;
rx_ring->rxbufs[i].frag = NULL;
}
@@ -1284,8 +1283,7 @@ nfp_net_rx_ring_bufs_free(struct nfp_net *nn, struct nfp_net_rx_ring *rx_ring,
* @xdp: Whether XDP is enabled
*/
static int
-nfp_net_rx_ring_bufs_alloc(struct nfp_net *nn, struct nfp_net_rx_ring *rx_ring,
- bool xdp)
+nfp_net_rx_ring_bufs_alloc(struct nfp_net *nn, struct nfp_net_rx_ring *rx_ring)
{
struct nfp_net_rx_buf *rxbufs;
unsigned int i;
@@ -1295,9 +1293,9 @@ nfp_net_rx_ring_bufs_alloc(struct nfp_net *nn, struct nfp_net_rx_ring *rx_ring,
for (i = 0; i < rx_ring->cnt - 1; i++) {
rxbufs[i].frag =
nfp_net_rx_alloc_one(rx_ring, &rxbufs[i].dma_addr,
- rx_ring->bufsz, xdp);
+ rx_ring->bufsz, nn->xdp_enabled);
if (!rxbufs[i].frag) {
- nfp_net_rx_ring_bufs_free(nn, rx_ring, xdp);
+ nfp_net_rx_ring_bufs_free(nn, rx_ring);
return -ENOMEM;
}
}
@@ -1513,16 +1511,6 @@ nfp_net_tx_xdp_buf(struct nfp_net *nn, struct nfp_net_rx_ring *rx_ring,
return true;
}
-static int nfp_net_run_xdp(struct bpf_prog *prog, void *data, unsigned int len)
-{
- struct xdp_buff xdp;
-
- xdp.data = data;
- xdp.data_end = data + len;
-
- return bpf_prog_run_xdp(prog, &xdp);
-}
-
/**
* nfp_net_rx() - receive up to @budget packets on @rx_ring
* @rx_ring: RX ring to receive from
@@ -1539,19 +1527,20 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
struct nfp_net_r_vector *r_vec = rx_ring->r_vec;
struct nfp_net *nn = r_vec->nfp_net;
struct nfp_net_tx_ring *tx_ring;
- struct bpf_prog *xdp_prog;
unsigned int true_bufsz;
struct sk_buff *skb;
+ bool run_xdp;
int pkts_polled = 0;
int rx_dma_map_dir;
int idx;
rcu_read_lock();
- xdp_prog = READ_ONCE(nn->xdp_prog);
- rx_dma_map_dir = xdp_prog ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE;
- true_bufsz = xdp_prog ? PAGE_SIZE : nn->fl_bufsz;
+ rx_dma_map_dir = nn->xdp_enabled ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE;
+ true_bufsz = nn->xdp_enabled ? PAGE_SIZE : nn->fl_bufsz;
tx_ring = r_vec->xdp_ring;
+ run_xdp = xdp_hook_run_needed_check(nn->netdev, &r_vec->napi);
+
while (pkts_polled < budget) {
unsigned int meta_len, data_len, data_off, pkt_len, pkt_off;
struct nfp_net_rx_buf *rxbuf;
@@ -1602,15 +1591,21 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
r_vec->rx_bytes += pkt_len;
u64_stats_update_end(&r_vec->rx_sync);
- if (xdp_prog && !(rxd->rxd.flags & PCIE_DESC_RX_BPF &&
- nn->bpf_offload_xdp)) {
+ if (run_xdp && !(rxd->rxd.flags & PCIE_DESC_RX_BPF &&
+ nn->bpf_offload_xdp)) {
int act;
+ struct xdp_buff xdp;
+ struct xdp_hook *last_hook;
dma_sync_single_for_cpu(&nn->pdev->dev,
rxbuf->dma_addr + pkt_off,
pkt_len, DMA_FROM_DEVICE);
- act = nfp_net_run_xdp(xdp_prog, rxbuf->frag + data_off,
- pkt_len);
+
+ xdp.data = rxbuf->frag + data_off;
+ xdp.data_end = xdp.data + pkt_len;
+
+ act = xdp_hook_run_ret_last(&r_vec->napi, &xdp,
+ &last_hook);
switch (act) {
case XDP_PASS:
break;
@@ -1618,12 +1613,15 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
if (unlikely(!nfp_net_tx_xdp_buf(nn, rx_ring,
tx_ring, rxbuf,
pkt_off, pkt_len)))
- trace_xdp_exception(nn->netdev, xdp_prog, act);
+ trace_xdp_hook_exception(nn->netdev,
+ last_hook,
+ act);
continue;
default:
- bpf_warn_invalid_xdp_action(act);
+ xdp_warn_invalid_action(act);
case XDP_ABORTED:
- trace_xdp_exception(nn->netdev, xdp_prog, act);
+ trace_xdp_hook_exception(nn->netdev, last_hook,
+ act);
case XDP_DROP:
nfp_net_rx_give_one(rx_ring, rxbuf->frag,
rxbuf->dma_addr);
@@ -1676,7 +1674,7 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
napi_gro_receive(&rx_ring->r_vec->napi, skb);
}
- if (xdp_prog && tx_ring->wr_ptr_add)
+ if (run_xdp && tx_ring->wr_ptr_add)
nfp_net_tx_xmit_more_flush(tx_ring);
rcu_read_unlock();
@@ -1907,8 +1905,7 @@ nfp_net_rx_ring_alloc(struct nfp_net_rx_ring *rx_ring, unsigned int fl_bufsz,
}
static struct nfp_net_rx_ring *
-nfp_net_rx_ring_set_prepare(struct nfp_net *nn, struct nfp_net_ring_set *s,
- bool xdp)
+nfp_net_rx_ring_set_prepare(struct nfp_net *nn, struct nfp_net_ring_set *s)
{
unsigned int fl_bufsz = nfp_net_calc_fl_bufsz(nn, s->mtu);
struct nfp_net_rx_ring *rings;
@@ -1924,7 +1921,7 @@ nfp_net_rx_ring_set_prepare(struct nfp_net *nn, struct nfp_net_ring_set *s,
if (nfp_net_rx_ring_alloc(&rings[r], fl_bufsz, s->dcnt))
goto err_free_prev;
- if (nfp_net_rx_ring_bufs_alloc(nn, &rings[r], xdp))
+ if (nfp_net_rx_ring_bufs_alloc(nn, &rings[r]))
goto err_free_ring;
}
@@ -1932,7 +1929,7 @@ nfp_net_rx_ring_set_prepare(struct nfp_net *nn, struct nfp_net_ring_set *s,
err_free_prev:
while (r--) {
- nfp_net_rx_ring_bufs_free(nn, &rings[r], xdp);
+ nfp_net_rx_ring_bufs_free(nn, &rings[r]);
err_free_ring:
nfp_net_rx_ring_free(&rings[r]);
}
@@ -1958,14 +1955,13 @@ nfp_net_rx_ring_set_swap(struct nfp_net *nn, struct nfp_net_ring_set *s)
}
static void
-nfp_net_rx_ring_set_free(struct nfp_net *nn, struct nfp_net_ring_set *s,
- bool xdp)
+nfp_net_rx_ring_set_free(struct nfp_net *nn, struct nfp_net_ring_set *s)
{
struct nfp_net_rx_ring *rings = s->rings;
unsigned int r;
for (r = 0; r < s->n_rings; r++) {
- nfp_net_rx_ring_bufs_free(nn, &rings[r], xdp);
+ nfp_net_rx_ring_bufs_free(nn, &rings[r]);
nfp_net_rx_ring_free(&rings[r]);
}
@@ -2302,7 +2298,7 @@ static int nfp_net_netdev_open(struct net_device *netdev)
goto err_cleanup_vec_p;
}
- nn->rx_rings = nfp_net_rx_ring_set_prepare(nn, &rx, nn->xdp_prog);
+ nn->rx_rings = nfp_net_rx_ring_set_prepare(nn, &rx);
if (!nn->rx_rings) {
err = -ENOMEM;
goto err_cleanup_vec;
@@ -2350,7 +2346,7 @@ static int nfp_net_netdev_open(struct net_device *netdev)
err_free_rings:
nfp_net_tx_ring_set_free(nn, &tx);
err_free_rx_rings:
- nfp_net_rx_ring_set_free(nn, &rx, nn->xdp_prog);
+ nfp_net_rx_ring_set_free(nn, &rx);
err_cleanup_vec:
r = nn->num_r_vecs;
err_cleanup_vec_p:
@@ -2391,7 +2387,7 @@ static void nfp_net_close_free_all(struct nfp_net *nn)
unsigned int r;
for (r = 0; r < nn->num_rx_rings; r++) {
- nfp_net_rx_ring_bufs_free(nn, &nn->rx_rings[r], nn->xdp_prog);
+ nfp_net_rx_ring_bufs_free(nn, &nn->rx_rings[r]);
nfp_net_rx_ring_free(&nn->rx_rings[r]);
}
for (r = 0; r < nn->num_tx_rings; r++)
@@ -2472,7 +2468,6 @@ static void nfp_net_rss_init_itbl(struct nfp_net *nn)
static int
nfp_net_ring_swap_enable(struct nfp_net *nn, unsigned int *num_vecs,
unsigned int *stack_tx_rings,
- struct bpf_prog **xdp_prog,
struct nfp_net_ring_set *rx,
struct nfp_net_ring_set *tx)
{
@@ -2486,7 +2481,6 @@ nfp_net_ring_swap_enable(struct nfp_net *nn, unsigned int *num_vecs,
swap(*num_vecs, nn->num_r_vecs);
swap(*stack_tx_rings, nn->num_stack_tx_rings);
- *xdp_prog = xchg(&nn->xdp_prog, *xdp_prog);
for (r = 0; r < nn->max_r_vecs; r++)
nfp_net_vector_assign_rings(nn, &nn->r_vecs[r], r);
@@ -2510,11 +2504,11 @@ nfp_net_ring_swap_enable(struct nfp_net *nn, unsigned int *num_vecs,
}
static int
-nfp_net_check_config(struct nfp_net *nn, struct bpf_prog *xdp_prog,
+nfp_net_check_config(struct nfp_net *nn,
struct nfp_net_ring_set *rx, struct nfp_net_ring_set *tx)
{
/* XDP-enabled tests */
- if (!xdp_prog)
+ if (!nn->xdp_enabled)
return 0;
if (rx && nfp_net_calc_fl_bufsz(nn, rx->mtu) > PAGE_SIZE) {
nn_warn(nn, "MTU too large w/ XDP enabled\n");
@@ -2529,7 +2523,7 @@ nfp_net_check_config(struct nfp_net *nn, struct bpf_prog *xdp_prog,
}
static void
-nfp_net_ring_reconfig_down(struct nfp_net *nn, struct bpf_prog **xdp_prog,
+nfp_net_ring_reconfig_down(struct nfp_net *nn,
struct nfp_net_ring_set *rx,
struct nfp_net_ring_set *tx,
unsigned int stack_tx_rings, unsigned int num_vecs)
@@ -2542,31 +2536,30 @@ nfp_net_ring_reconfig_down(struct nfp_net *nn, struct bpf_prog **xdp_prog,
nn->num_tx_rings = tx ? tx->n_rings : nn->num_tx_rings;
nn->num_stack_tx_rings = stack_tx_rings;
nn->num_r_vecs = num_vecs;
- *xdp_prog = xchg(&nn->xdp_prog, *xdp_prog);
if (!netif_is_rxfh_configured(nn->netdev))
nfp_net_rss_init_itbl(nn);
}
int
-nfp_net_ring_reconfig(struct nfp_net *nn, struct bpf_prog **xdp_prog,
+nfp_net_ring_reconfig(struct nfp_net *nn,
struct nfp_net_ring_set *rx, struct nfp_net_ring_set *tx)
{
unsigned int stack_tx_rings, num_vecs, r;
int err;
stack_tx_rings = tx ? tx->n_rings : nn->num_tx_rings;
- if (*xdp_prog)
+ if (nn->xdp_enabled)
stack_tx_rings -= rx ? rx->n_rings : nn->num_rx_rings;
num_vecs = max(rx ? rx->n_rings : nn->num_rx_rings, stack_tx_rings);
- err = nfp_net_check_config(nn, *xdp_prog, rx, tx);
+ err = nfp_net_check_config(nn, rx, tx);
if (err)
return err;
if (!netif_running(nn->netdev)) {
- nfp_net_ring_reconfig_down(nn, xdp_prog, rx, tx,
+ nfp_net_ring_reconfig_down(nn, rx, tx,
stack_tx_rings, num_vecs);
return 0;
}
@@ -2580,7 +2573,7 @@ nfp_net_ring_reconfig(struct nfp_net *nn, struct bpf_prog **xdp_prog,
}
}
if (rx) {
- if (!nfp_net_rx_ring_set_prepare(nn, rx, *xdp_prog)) {
+ if (!nfp_net_rx_ring_set_prepare(nn, rx)) {
err = -ENOMEM;
goto err_cleanup_vecs;
}
@@ -2597,7 +2590,7 @@ nfp_net_ring_reconfig(struct nfp_net *nn, struct bpf_prog **xdp_prog,
nfp_net_clear_config_and_disable(nn);
err = nfp_net_ring_swap_enable(nn, &num_vecs, &stack_tx_rings,
- xdp_prog, rx, tx);
+ rx, tx);
if (err) {
int err2;
@@ -2605,7 +2598,7 @@ nfp_net_ring_reconfig(struct nfp_net *nn, struct bpf_prog **xdp_prog,
/* Try with old configuration and old rings */
err2 = nfp_net_ring_swap_enable(nn, &num_vecs, &stack_tx_rings,
- xdp_prog, rx, tx);
+ rx, tx);
if (err2)
nn_err(nn, "Can't restore ring config - FW communication failed (%d,%d)\n",
err, err2);
@@ -2614,7 +2607,7 @@ nfp_net_ring_reconfig(struct nfp_net *nn, struct bpf_prog **xdp_prog,
nfp_net_cleanup_vector(nn, &nn->r_vecs[r]);
if (rx)
- nfp_net_rx_ring_set_free(nn, rx, *xdp_prog);
+ nfp_net_rx_ring_set_free(nn, rx);
if (tx)
nfp_net_tx_ring_set_free(nn, tx);
@@ -2624,7 +2617,7 @@ nfp_net_ring_reconfig(struct nfp_net *nn, struct bpf_prog **xdp_prog,
err_free_rx:
if (rx)
- nfp_net_rx_ring_set_free(nn, rx, *xdp_prog);
+ nfp_net_rx_ring_set_free(nn, rx);
err_cleanup_vecs:
for (r = num_vecs - 1; r >= nn->num_r_vecs; r--)
nfp_net_cleanup_vector(nn, &nn->r_vecs[r]);
@@ -2640,7 +2633,7 @@ static int nfp_net_change_mtu(struct net_device *netdev, int new_mtu)
.dcnt = nn->rxd_cnt,
};
- return nfp_net_ring_reconfig(nn, &nn->xdp_prog, &rx, NULL);
+ return nfp_net_ring_reconfig(nn, &rx, NULL);
}
static void nfp_net_stat64(struct net_device *netdev,
@@ -2936,7 +2929,17 @@ static int nfp_net_xdp_offload(struct nfp_net *nn, struct bpf_prog *prog)
return ret;
}
-static int nfp_net_xdp_setup(struct nfp_net *nn, struct bpf_prog *prog)
+static int nfp_xdp_check_bpf(struct nfp_net *nn, struct bpf_prog *prog)
+{
+ if (prog && prog->xdp_adjust_head) {
+ nn_err(nn, "Does not support bpf_xdp_adjust_head()\n");
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int nfp_net_xdp_init(struct nfp_net *nn, bool enable)
{
struct nfp_net_ring_set rx = {
.n_rings = nn->num_rx_rings,
@@ -2949,33 +2952,17 @@ static int nfp_net_xdp_setup(struct nfp_net *nn, struct bpf_prog *prog)
};
int err;
- if (prog && prog->xdp_adjust_head) {
- nn_err(nn, "Does not support bpf_xdp_adjust_head()\n");
- return -EOPNOTSUPP;
- }
- if (!prog && !nn->xdp_prog)
- return 0;
- if (prog && nn->xdp_prog) {
- prog = xchg(&nn->xdp_prog, prog);
- bpf_prog_put(prog);
- nfp_net_xdp_offload(nn, nn->xdp_prog);
+ if (nn->xdp_enabled == enable)
return 0;
- }
-
- tx.n_rings += prog ? nn->num_rx_rings : -nn->num_rx_rings;
- /* We need RX reconfig to remap the buffers (BIDIR vs FROM_DEV) */
- err = nfp_net_ring_reconfig(nn, &prog, &rx, &tx);
- if (err)
- return err;
+ nn->xdp_enabled = enable;
- /* @prog got swapped and is now the old one */
- if (prog)
- bpf_prog_put(prog);
+ tx.n_rings += enable ? nn->num_rx_rings : -nn->num_rx_rings;
- nfp_net_xdp_offload(nn, nn->xdp_prog);
+ /* We need RX reconfig to remap the buffers (BIDIR vs FROM_DEV) */
+ err = nfp_net_ring_reconfig(nn, &rx, &tx);
- return 0;
+ return err;
}
static int nfp_net_xdp(struct net_device *netdev, struct netdev_xdp *xdp)
@@ -2983,11 +2970,14 @@ static int nfp_net_xdp(struct net_device *netdev, struct netdev_xdp *xdp)
struct nfp_net *nn = netdev_priv(netdev);
switch (xdp->command) {
- case XDP_SETUP_PROG:
- return nfp_net_xdp_setup(nn, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_attached = !!nn->xdp_prog;
- return 0;
+ case XDP_MODE_ON:
+ return nfp_net_xdp_init(nn, true);
+ case XDP_MODE_OFF:
+ return nfp_net_xdp_init(nn, false);
+ case XDP_CHECK_BPF_PROG:
+ return nfp_xdp_check_bpf(nn, xdp->prog);
+ case XDP_OFFLOAD_BPF:
+ return nfp_net_xdp_offload(nn, xdp->prog);
default:
return -EINVAL;
}
@@ -3173,7 +3163,7 @@ int nfp_net_netdev_init(struct net_device *netdev)
* and netdev->hw_features advertises which features are
* supported. By default we enable most features.
*/
- netdev->hw_features = NETIF_F_HIGHDMA;
+ netdev->hw_features = NETIF_F_HIGHDMA | NETIF_F_XDP;
if (nn->cap & NFP_NET_CFG_CTRL_RXCSUM) {
netdev->hw_features |= NETIF_F_RXCSUM;
nn->ctrl |= NFP_NET_CFG_CTRL_RXCSUM;
@@ -3272,8 +3262,6 @@ void nfp_net_netdev_clean(struct net_device *netdev)
{
struct nfp_net *nn = netdev_priv(netdev);
- if (nn->xdp_prog)
- bpf_prog_put(nn->xdp_prog);
if (nn->bpf_offload_xdp)
nfp_net_xdp_offload(nn, NULL);
unregister_netdev(nn->netdev);
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index 1b26e96..ca3ddd5 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -176,8 +176,7 @@ static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt)
if (nn->txd_cnt != txd_cnt)
reconfig_tx = &tx;
- return nfp_net_ring_reconfig(nn, &nn->xdp_prog,
- reconfig_rx, reconfig_tx);
+ return nfp_net_ring_reconfig(nn, reconfig_rx, reconfig_tx);
}
static int nfp_net_set_ringparam(struct net_device *netdev,
@@ -643,7 +642,7 @@ static void nfp_net_get_channels(struct net_device *netdev,
unsigned int num_tx_rings;
num_tx_rings = nn->num_tx_rings;
- if (nn->xdp_prog)
+ if (nn->xdp_enabled)
num_tx_rings -= nn->num_rx_rings;
channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs);
@@ -673,15 +672,14 @@ static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx,
if (nn->num_rx_rings != total_rx)
reconfig_rx = ℞
if (nn->num_stack_tx_rings != total_tx ||
- (nn->xdp_prog && reconfig_rx))
+ (nn->xdp_enabled && reconfig_rx))
reconfig_tx = &tx;
/* nfp_net_check_config() will catch tx.n_rings > nn->max_tx_rings */
- if (nn->xdp_prog)
+ if (nn->xdp_enabled)
tx.n_rings += total_rx;
- return nfp_net_ring_reconfig(nn, &nn->xdp_prog,
- reconfig_rx, reconfig_tx);
+ return nfp_net_ring_reconfig(nn, reconfig_rx, reconfig_tx);
}
static int nfp_net_set_channels(struct net_device *netdev,
--
2.9.3
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