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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?Bq9ghuJdzopk0ut0/CQFFNVrWw+TwVEzpHpSlZYiMURPQxcOfPSTWySNpCXw?= =?us-ascii?Q?7hcmm9X2GnfDqOnRYFdORe77bUOvZkneu1AL06LQT0oH/h6kBqd6eFYWlOzB?= =?us-ascii?Q?s2h6RR7bUrKCMZvRVBk8gCxEy34BtoVJW2tyAkS8P98HPiRadfe0XVRc4YwF?= =?us-ascii?Q?NxioSgcdHekehawcVN6/eaLlAKMliW2jGiTNVGrBmnNWEwriJOi6xuccr3YI?= =?us-ascii?Q?NJUEcZDZkh+2zXt3KRhLSqsTmMxpt4ZKBmAZ4fcZoiKiIz0tv4azTy3mI0M+?= =?us-ascii?Q?rQRkZ7BL5NZIXMBwdwjGWDiZADYp+4eObK3EPEtsYEzhXFoxlrdVectkKWXt?= =?us-ascii?Q?Wdwp6vrXdEROqwLfGTW0zNPXlHFGAzLyTVgpVpkHJ6b/xCTyxidLNjBHWlU+?= =?us-ascii?Q?4vXOLH1nJm4Zpmn34Hu+7o3WZPamtqZ1f++tAnBvSNExlEkbqbFOunaXqUg+?= =?us-ascii?Q?D3XQFxYB7g1FzROqlUt+GAYqgiha+c6t8lsnBcywRpnWch9mC7+O54l60ZKb?= =?us-ascii?Q?kgbZEPaPI5f5OneuMr4GraEa7pofWsh7uWaH60x3w82qpi1gj05UNM39UuwB?= =?us-ascii?Q?ik+ra8i3UH2GWGI0WsyWz+XXJpRozi/6DRjLmmq1jPcJndryY6fbjwpCfeQz?= =?us-ascii?Q?H+grWYyM3EuP31sCq2ZitvpNjxCBr+8CwHfGH423iGHsKiu9AVFyui3TgVjz?= =?us-ascii?Q?pIhCl4Ml2nnAvbeTszXhN9KgcrLCzHul4SDJT+3Bk1fI7KEAFNn+JotuDbLJ?= =?us-ascii?Q?j1E3cnhKVS++I2e5IQhsFISIqaFH37prPnxXWW3wGLHSmO1Acjw5gf949s8J?= =?us-ascii?Q?VAG6D6vnPcOOzD8GXF2cIKaFMiZ5IMTaY0M4FO6Hhwm/KiOLniF0atIeizur?= =?us-ascii?Q?HMO3BMeHmgo/4HysSqsKBZ9TwVSnIUrXZKocQiHp9LtJSqBh7bX/LZP1rMxP?= =?us-ascii?Q?7y1+DyyAkwrhE+RzoGqDUzcpnMduC1iVBoGHCG84zHQbpCV5Tywrfe8A9mUN?= =?us-ascii?Q?WNmL9lMXEewFNxep46qepMILY8ZEnGgaUMmFbjHpInzdlGPaQFpQIOQCJ578?= =?us-ascii?Q?AnWCm+0wdiKLurVO/k75afiZpGm6BSBZGpLJC6V6MqbwnBvX4uNHdELYs8j3?= =?us-ascii?Q?JODX1xgMl77t3lLa32j7Ig1IAMhbLAU6hUD097VbibfqmKVbnlWSwtsfCnXo?= =?us-ascii?Q?bUC4BW7t8oyselbBdaLPaLSxgo3Zcn9xIQiIHh2P90x5XwFM3785FHgkOwKl?= =?us-ascii?Q?mfDv7lMdxVBJaoMzbsPEBryoLZR5TtWZAIX6Ao2mhqxikJp+ot7W51pcSQuP?= =?us-ascii?Q?bvvgExUga9a3lrLaMnj9bVH/d6eQfjov6/CA4eJNShekuJnPJjThqbBFnMcI?= =?us-ascii?Q?EFHUzYqMvMrJ+hT8nZ4HkW3Y00gM3RsLBFcHZDRYPJeA8d9jUgQvurm0fkDf?= =?us-ascii?Q?30eqVtCbkYXuyBIC0jAOYnz/Cn8CL8bBjYt4olOtHZYw2j6EY6jDsxID6Twu?= =?us-ascii?Q?dxQDAK/gn89C06qibBxDa2cz5/mgjI4/xr0b7uivqggOcNfiFvW+rE3JNw?= =?us-ascii?Q?=3D=3D?= X-OriginatorOrg: corigine.com X-MS-Exchange-CrossTenant-Network-Message-Id: 57f71366-a4ef-423e-9c45-08da0b277fb7 X-MS-Exchange-CrossTenant-AuthSource: PH0PR13MB4842.namprd13.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Mar 2022 10:42:30.2862 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: fe128f2c-073b-4c20-818e-7246a585940c X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: bsHCsxXF1jTJ1HmX34kbqVZuShMc2OZWpkHJDMku90zbVYv04far5AHeJ4J9ILWHNsNt/HWrMs5xMRltiVrjTUP3CWF4NlmkeKXTfdomjys= X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR13MB1512 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jakub Kicinski To reduce the coupling of slow path ring implementations and their callers, use callbacks instead. Changes to Jakub's work: * Also use callbacks for xmit functions Signed-off-by: Jakub Kicinski Signed-off-by: Yinjun Zhang Signed-off-by: Simon Horman --- drivers/net/ethernet/netronome/nfp/nfd3/dp.c | 27 +---- .../net/ethernet/netronome/nfp/nfd3/nfd3.h | 28 +---- .../net/ethernet/netronome/nfp/nfd3/rings.c | 28 ++++- drivers/net/ethernet/netronome/nfp/nfp_net.h | 4 + .../ethernet/netronome/nfp/nfp_net_common.c | 7 +- .../ethernet/netronome/nfp/nfp_net_debugfs.c | 2 +- .../net/ethernet/netronome/nfp/nfp_net_dp.c | 55 ++------- .../net/ethernet/netronome/nfp/nfp_net_dp.h | 111 +++++++++++++++--- 8 files changed, 148 insertions(+), 114 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfd3/dp.c b/drivers/net/ethernet/netronome/nfp/nfd3/dp.c index b2a34a09471b..619f4d09e4e0 100644 --- a/drivers/net/ethernet/netronome/nfp/nfd3/dp.c +++ b/drivers/net/ethernet/netronome/nfp/nfd3/dp.c @@ -1131,9 +1131,9 @@ int nfp_nfd3_poll(struct napi_struct *napi, int budget) /* Control device data path */ -static bool -nfp_ctrl_tx_one(struct nfp_net *nn, struct nfp_net_r_vector *r_vec, - struct sk_buff *skb, bool old) +bool +nfp_nfd3_ctrl_tx_one(struct nfp_net *nn, struct nfp_net_r_vector *r_vec, + struct sk_buff *skb, bool old) { unsigned int real_len = skb->len, meta_len = 0; struct nfp_net_tx_ring *tx_ring; @@ -1215,31 +1215,12 @@ nfp_ctrl_tx_one(struct nfp_net *nn, struct nfp_net_r_vector *r_vec, return false; } -bool __nfp_nfd3_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb) -{ - struct nfp_net_r_vector *r_vec = &nn->r_vecs[0]; - - return nfp_ctrl_tx_one(nn, r_vec, skb, false); -} - -bool nfp_nfd3_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb) -{ - struct nfp_net_r_vector *r_vec = &nn->r_vecs[0]; - bool ret; - - spin_lock_bh(&r_vec->lock); - ret = nfp_ctrl_tx_one(nn, r_vec, skb, false); - spin_unlock_bh(&r_vec->lock); - - return ret; -} - static void __nfp_ctrl_tx_queued(struct nfp_net_r_vector *r_vec) { struct sk_buff *skb; while ((skb = __skb_dequeue(&r_vec->queue))) - if (nfp_ctrl_tx_one(r_vec->nfp_net, r_vec, skb, true)) + if (nfp_nfd3_ctrl_tx_one(r_vec->nfp_net, r_vec, skb, true)) return; } diff --git a/drivers/net/ethernet/netronome/nfp/nfd3/nfd3.h b/drivers/net/ethernet/netronome/nfp/nfd3/nfd3.h index 0bd597ad6c6e..7a0df9e6c3c4 100644 --- a/drivers/net/ethernet/netronome/nfp/nfd3/nfd3.h +++ b/drivers/net/ethernet/netronome/nfp/nfd3/nfd3.h @@ -93,34 +93,14 @@ nfp_nfd3_parse_meta(struct net_device *netdev, struct nfp_meta_parsed *meta, void *data, void *pkt, unsigned int pkt_len, int meta_len); void nfp_nfd3_tx_complete(struct nfp_net_tx_ring *tx_ring, int budget); int nfp_nfd3_poll(struct napi_struct *napi, int budget); +netdev_tx_t nfp_nfd3_tx(struct sk_buff *skb, struct net_device *netdev); +bool +nfp_nfd3_ctrl_tx_one(struct nfp_net *nn, struct nfp_net_r_vector *r_vec, + struct sk_buff *skb, bool old); void nfp_nfd3_ctrl_poll(struct tasklet_struct *t); void nfp_nfd3_rx_ring_fill_freelist(struct nfp_net_dp *dp, struct nfp_net_rx_ring *rx_ring); void nfp_nfd3_xsk_tx_free(struct nfp_nfd3_tx_buf *txbuf); int nfp_nfd3_xsk_poll(struct napi_struct *napi, int budget); -void -nfp_nfd3_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring); -void -nfp_nfd3_rx_ring_fill_freelist(struct nfp_net_dp *dp, - struct nfp_net_rx_ring *rx_ring); -int -nfp_nfd3_tx_ring_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring); -void -nfp_nfd3_tx_ring_free(struct nfp_net_tx_ring *tx_ring); -int -nfp_nfd3_tx_ring_bufs_alloc(struct nfp_net_dp *dp, - struct nfp_net_tx_ring *tx_ring); -void -nfp_nfd3_tx_ring_bufs_free(struct nfp_net_dp *dp, - struct nfp_net_tx_ring *tx_ring); -void -nfp_nfd3_print_tx_descs(struct seq_file *file, - struct nfp_net_r_vector *r_vec, - struct nfp_net_tx_ring *tx_ring, - u32 d_rd_p, u32 d_wr_p); -netdev_tx_t nfp_nfd3_tx(struct sk_buff *skb, struct net_device *netdev); -bool nfp_nfd3_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb); -bool __nfp_nfd3_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb); - #endif diff --git a/drivers/net/ethernet/netronome/nfp/nfd3/rings.c b/drivers/net/ethernet/netronome/nfp/nfd3/rings.c index 4c6aaebb7522..342871d23e15 100644 --- a/drivers/net/ethernet/netronome/nfp/nfd3/rings.c +++ b/drivers/net/ethernet/netronome/nfp/nfd3/rings.c @@ -38,7 +38,7 @@ static void nfp_nfd3_xsk_tx_bufs_free(struct nfp_net_tx_ring *tx_ring) * * Assumes that the device is stopped, must be idempotent. */ -void +static void nfp_nfd3_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) { struct netdev_queue *nd_q; @@ -98,7 +98,7 @@ nfp_nfd3_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) * nfp_nfd3_tx_ring_free() - Free resources allocated to a TX ring * @tx_ring: TX ring to free */ -void nfp_nfd3_tx_ring_free(struct nfp_net_tx_ring *tx_ring) +static void nfp_nfd3_tx_ring_free(struct nfp_net_tx_ring *tx_ring) { struct nfp_net_r_vector *r_vec = tx_ring->r_vec; struct nfp_net_dp *dp = &r_vec->nfp_net->dp; @@ -123,7 +123,7 @@ void nfp_nfd3_tx_ring_free(struct nfp_net_tx_ring *tx_ring) * * Return: 0 on success, negative errno otherwise. */ -int +static int nfp_nfd3_tx_ring_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) { struct nfp_net_r_vector *r_vec = tx_ring->r_vec; @@ -156,7 +156,7 @@ nfp_nfd3_tx_ring_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) return -ENOMEM; } -void +static void nfp_nfd3_tx_ring_bufs_free(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) { @@ -174,7 +174,7 @@ nfp_nfd3_tx_ring_bufs_free(struct nfp_net_dp *dp, } } -int +static int nfp_nfd3_tx_ring_bufs_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) { @@ -195,7 +195,7 @@ nfp_nfd3_tx_ring_bufs_alloc(struct nfp_net_dp *dp, return 0; } -void +static void nfp_nfd3_print_tx_descs(struct seq_file *file, struct nfp_net_r_vector *r_vec, struct nfp_net_tx_ring *tx_ring, @@ -241,3 +241,19 @@ nfp_nfd3_print_tx_descs(struct seq_file *file, seq_putc(file, '\n'); } } + +const struct nfp_dp_ops nfp_nfd3_ops = { + .version = NFP_NFD_VER_NFD3, + .poll = nfp_nfd3_poll, + .xsk_poll = nfp_nfd3_xsk_poll, + .ctrl_poll = nfp_nfd3_ctrl_poll, + .xmit = nfp_nfd3_tx, + .ctrl_tx_one = nfp_nfd3_ctrl_tx_one, + .rx_ring_fill_freelist = nfp_nfd3_rx_ring_fill_freelist, + .tx_ring_alloc = nfp_nfd3_tx_ring_alloc, + .tx_ring_reset = nfp_nfd3_tx_ring_reset, + .tx_ring_free = nfp_nfd3_tx_ring_free, + .tx_ring_bufs_alloc = nfp_nfd3_tx_ring_bufs_alloc, + .tx_ring_bufs_free = nfp_nfd3_tx_ring_bufs_free, + .print_tx_descs = nfp_nfd3_print_tx_descs +}; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h index bffe53f4c2d3..13a9e6731d0d 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h @@ -98,6 +98,7 @@ /* Forward declarations */ struct nfp_cpp; struct nfp_dev_info; +struct nfp_dp_ops; struct nfp_eth_table_port; struct nfp_net; struct nfp_net_r_vector; @@ -439,6 +440,7 @@ struct nfp_stat_pair { * @rx_rings: Array of pre-allocated RX ring structures * @ctrl_bar: Pointer to mapped control BAR * + * @ops: Callbacks and parameters for this vNIC's NFD version * @txd_cnt: Size of the TX ring in number of descriptors * @rxd_cnt: Size of the RX ring in number of descriptors * @num_r_vecs: Number of used ring vectors @@ -473,6 +475,8 @@ struct nfp_net_dp { /* Cold data follows */ + const struct nfp_dp_ops *ops; + unsigned int txd_cnt; unsigned int rxd_cnt; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 1d3277068301..dd234f5228f1 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -754,7 +754,7 @@ static void nfp_net_vecs_init(struct nfp_net *nn) __skb_queue_head_init(&r_vec->queue); spin_lock_init(&r_vec->lock); - tasklet_setup(&r_vec->tasklet, nfp_nfd3_ctrl_poll); + tasklet_setup(&r_vec->tasklet, nn->dp.ops->ctrl_poll); tasklet_disable(&r_vec->tasklet); } @@ -768,7 +768,7 @@ nfp_net_napi_add(struct nfp_net_dp *dp, struct nfp_net_r_vector *r_vec, int idx) if (dp->netdev) netif_napi_add(dp->netdev, &r_vec->napi, nfp_net_has_xsk_pool_slow(dp, idx) ? - nfp_nfd3_xsk_poll : nfp_nfd3_poll, + dp->ops->xsk_poll : dp->ops->poll, NAPI_POLL_WEIGHT); else tasklet_enable(&r_vec->tasklet); @@ -1895,7 +1895,7 @@ const struct net_device_ops nfp_net_netdev_ops = { .ndo_uninit = nfp_app_ndo_uninit, .ndo_open = nfp_net_netdev_open, .ndo_stop = nfp_net_netdev_close, - .ndo_start_xmit = nfp_nfd3_tx, + .ndo_start_xmit = nfp_net_tx, .ndo_get_stats64 = nfp_net_stat64, .ndo_vlan_rx_add_vid = nfp_net_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = nfp_net_vlan_rx_kill_vid, @@ -2033,6 +2033,7 @@ nfp_net_alloc(struct pci_dev *pdev, const struct nfp_dev_info *dev_info, nn->dp.ctrl_bar = ctrl_bar; nn->dev_info = dev_info; nn->pdev = pdev; + nn->dp.ops = &nfp_nfd3_ops; nn->max_tx_rings = max_tx_rings; nn->max_rx_rings = max_rx_rings; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c index 59b852e18758..791203d07ac7 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c @@ -105,7 +105,7 @@ static int nfp_tx_q_show(struct seq_file *file, void *data) tx_ring->cnt, &tx_ring->dma, tx_ring->txds, tx_ring->rd_p, tx_ring->wr_p, d_rd_p, d_wr_p); - nfp_net_debugfs_print_tx_descs(file, r_vec, tx_ring, + nfp_net_debugfs_print_tx_descs(file, &nn->dp, r_vec, tx_ring, d_rd_p, d_wr_p); out: rtnl_unlock(); diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_dp.c b/drivers/net/ethernet/netronome/nfp/nfp_net_dp.c index 8fe48569a612..431bd2c13221 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_dp.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_dp.c @@ -392,57 +392,28 @@ void nfp_net_vec_clear_ring_data(struct nfp_net *nn, unsigned int idx) nn_writeb(nn, NFP_NET_CFG_TXR_VEC(idx), 0); } -void -nfp_net_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) -{ - nfp_nfd3_tx_ring_reset(dp, tx_ring); -} - -void nfp_net_rx_ring_fill_freelist(struct nfp_net_dp *dp, - struct nfp_net_rx_ring *rx_ring) +netdev_tx_t nfp_net_tx(struct sk_buff *skb, struct net_device *netdev) { - nfp_nfd3_rx_ring_fill_freelist(dp, rx_ring); -} + struct nfp_net *nn = netdev_priv(netdev); -int -nfp_net_tx_ring_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) -{ - return nfp_nfd3_tx_ring_alloc(dp, tx_ring); + return nn->dp.ops->xmit(skb, netdev); } -void -nfp_net_tx_ring_free(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) +bool __nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb) { - nfp_nfd3_tx_ring_free(tx_ring); -} + struct nfp_net_r_vector *r_vec = &nn->r_vecs[0]; -int nfp_net_tx_ring_bufs_alloc(struct nfp_net_dp *dp, - struct nfp_net_tx_ring *tx_ring) -{ - return nfp_nfd3_tx_ring_bufs_alloc(dp, tx_ring); + return nn->dp.ops->ctrl_tx_one(nn, r_vec, skb, false); } -void nfp_net_tx_ring_bufs_free(struct nfp_net_dp *dp, - struct nfp_net_tx_ring *tx_ring) -{ - nfp_nfd3_tx_ring_bufs_free(dp, tx_ring); -} - -void -nfp_net_debugfs_print_tx_descs(struct seq_file *file, - struct nfp_net_r_vector *r_vec, - struct nfp_net_tx_ring *tx_ring, - u32 d_rd_p, u32 d_wr_p) +bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb) { - nfp_nfd3_print_tx_descs(file, r_vec, tx_ring, d_rd_p, d_wr_p); -} + struct nfp_net_r_vector *r_vec = &nn->r_vecs[0]; + bool ret; -bool __nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb) -{ - return __nfp_nfd3_ctrl_tx(nn, skb); -} + spin_lock_bh(&r_vec->lock); + ret = nn->dp.ops->ctrl_tx_one(nn, r_vec, skb, false); + spin_unlock_bh(&r_vec->lock); -bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb) -{ - return nfp_nfd3_ctrl_tx(nn, skb); + return ret; } diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_dp.h b/drivers/net/ethernet/netronome/nfp/nfp_net_dp.h index 30ccdf5aa819..25af0e3c7af7 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_dp.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_dp.h @@ -5,7 +5,6 @@ #define _NFP_NET_DP_ #include "nfp_net.h" -#include "nfd3/nfd3.h" static inline dma_addr_t nfp_net_dma_map_rx(struct nfp_net_dp *dp, void *frag) { @@ -100,21 +99,103 @@ void nfp_net_rx_rings_free(struct nfp_net_dp *dp); void nfp_net_tx_rings_free(struct nfp_net_dp *dp); void nfp_net_rx_ring_reset(struct nfp_net_rx_ring *rx_ring); -void -nfp_net_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring); -void nfp_net_rx_ring_fill_freelist(struct nfp_net_dp *dp, - struct nfp_net_rx_ring *rx_ring); -int -nfp_net_tx_ring_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring); -void -nfp_net_tx_ring_free(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring); -int nfp_net_tx_ring_bufs_alloc(struct nfp_net_dp *dp, - struct nfp_net_tx_ring *tx_ring); -void nfp_net_tx_ring_bufs_free(struct nfp_net_dp *dp, - struct nfp_net_tx_ring *tx_ring); -void -nfp_net_debugfs_print_tx_descs(struct seq_file *file, +enum nfp_nfd_version { + NFP_NFD_VER_NFD3, +}; + +/** + * struct nfp_dp_ops - Hooks to wrap different implementation of different dp + * @version: Indicate dp type + * @poll: Napi poll for normal rx/tx + * @xsk_poll: Napi poll when xsk is enabled + * @ctrl_poll: Tasklet poll for ctrl rx/tx + * @xmit: Xmit for normal path + * @ctrl_tx_one: Xmit for ctrl path + * @rx_ring_fill_freelist: Give buffers from the ring to FW + * @tx_ring_alloc: Allocate resource for a TX ring + * @tx_ring_reset: Free any untransmitted buffers and reset pointers + * @tx_ring_free: Free resources allocated to a TX ring + * @tx_ring_bufs_alloc: Allocate resource for each TX buffer + * @tx_ring_bufs_free: Free resources allocated to each TX buffer + * @print_tx_descs: Show TX ring's info for debug purpose + */ +struct nfp_dp_ops { + enum nfp_nfd_version version; + + int (*poll)(struct napi_struct *napi, int budget); + int (*xsk_poll)(struct napi_struct *napi, int budget); + void (*ctrl_poll)(struct tasklet_struct *t); + netdev_tx_t (*xmit)(struct sk_buff *skb, struct net_device *netdev); + bool (*ctrl_tx_one)(struct nfp_net *nn, struct nfp_net_r_vector *r_vec, + struct sk_buff *skb, bool old); + void (*rx_ring_fill_freelist)(struct nfp_net_dp *dp, + struct nfp_net_rx_ring *rx_ring); + int (*tx_ring_alloc)(struct nfp_net_dp *dp, + struct nfp_net_tx_ring *tx_ring); + void (*tx_ring_reset)(struct nfp_net_dp *dp, + struct nfp_net_tx_ring *tx_ring); + void (*tx_ring_free)(struct nfp_net_tx_ring *tx_ring); + int (*tx_ring_bufs_alloc)(struct nfp_net_dp *dp, + struct nfp_net_tx_ring *tx_ring); + void (*tx_ring_bufs_free)(struct nfp_net_dp *dp, + struct nfp_net_tx_ring *tx_ring); + + void (*print_tx_descs)(struct seq_file *file, struct nfp_net_r_vector *r_vec, struct nfp_net_tx_ring *tx_ring, u32 d_rd_p, u32 d_wr_p); +}; + +static inline void +nfp_net_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) +{ + return dp->ops->tx_ring_reset(dp, tx_ring); +} + +static inline void +nfp_net_rx_ring_fill_freelist(struct nfp_net_dp *dp, + struct nfp_net_rx_ring *rx_ring) +{ + dp->ops->rx_ring_fill_freelist(dp, rx_ring); +} + +static inline int +nfp_net_tx_ring_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) +{ + return dp->ops->tx_ring_alloc(dp, tx_ring); +} + +static inline void +nfp_net_tx_ring_free(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring) +{ + dp->ops->tx_ring_free(tx_ring); +} + +static inline int +nfp_net_tx_ring_bufs_alloc(struct nfp_net_dp *dp, + struct nfp_net_tx_ring *tx_ring) +{ + return dp->ops->tx_ring_bufs_alloc(dp, tx_ring); +} + +static inline void +nfp_net_tx_ring_bufs_free(struct nfp_net_dp *dp, + struct nfp_net_tx_ring *tx_ring) +{ + dp->ops->tx_ring_bufs_free(dp, tx_ring); +} + +static inline void +nfp_net_debugfs_print_tx_descs(struct seq_file *file, struct nfp_net_dp *dp, + struct nfp_net_r_vector *r_vec, + struct nfp_net_tx_ring *tx_ring, + u32 d_rd_p, u32 d_wr_p) +{ + dp->ops->print_tx_descs(file, r_vec, tx_ring, d_rd_p, d_wr_p); +} + +extern const struct nfp_dp_ops nfp_nfd3_ops; + +netdev_tx_t nfp_net_tx(struct sk_buff *skb, struct net_device *netdev); + #endif /* _NFP_NET_DP_ */ -- 2.30.2