@@ -1053,6 +1053,10 @@ int mlx5e_create_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param);
void mlx5e_destroy_rq(struct mlx5e_rq *rq);
struct mlx5e_sq_param;
+int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
+ struct mlx5e_sq_param *param, struct mlx5e_icosq *sq,
+ work_func_t recover_work_func);
+void mlx5e_close_icosq(struct mlx5e_icosq *sq);
int mlx5e_open_xdpsq(struct mlx5e_channel *c, struct mlx5e_params *params,
struct mlx5e_sq_param *param, struct xsk_buff_pool *xsk_pool,
struct mlx5e_xdpsq *sq, bool is_redirect);
@@ -611,6 +611,34 @@ struct mlx5e_rss_params_hash mlx5e_rx_res_get_current_hash(struct mlx5e_rx_res *
return mlx5e_rss_get_hash(res->rss[0]);
}
+int mlx5e_rx_res_nvmeotcp_tir_create(struct mlx5e_rx_res *res, unsigned int rxq, bool crc_rx,
+ u32 tag_buf_id, struct mlx5e_tir *tir)
+{
+ bool inner_ft_support = res->features & MLX5E_RX_RES_FEATURE_INNER_FT;
+ struct mlx5e_tir_builder *builder;
+ u32 rqtn;
+ int err;
+
+ builder = mlx5e_tir_builder_alloc(false);
+ if (!builder)
+ return -ENOMEM;
+
+ rqtn = mlx5e_rx_res_get_rqtn_direct(res, rxq);
+
+ mlx5e_tir_builder_build_rqt(builder, res->mdev->mlx5e_res.hw_objs.td.tdn, rqtn,
+ inner_ft_support);
+ mlx5e_tir_builder_build_direct(builder);
+ mlx5e_tir_builder_build_nvmeotcp(builder, crc_rx, tag_buf_id);
+ down_read(&res->pkt_merge_param_sem);
+ mlx5e_tir_builder_build_packet_merge(builder, &res->pkt_merge_param);
+ err = mlx5e_tir_init(tir, builder, res->mdev, false);
+ up_read(&res->pkt_merge_param_sem);
+
+ mlx5e_tir_builder_free(builder);
+
+ return err;
+}
+
int mlx5e_rx_res_tls_tir_create(struct mlx5e_rx_res *res, unsigned int rxq,
struct mlx5e_tir *tir)
{
@@ -66,4 +66,8 @@ struct mlx5e_rss_params_hash mlx5e_rx_res_get_current_hash(struct mlx5e_rx_res *
/* Accel TIRs */
int mlx5e_rx_res_tls_tir_create(struct mlx5e_rx_res *res, unsigned int rxq,
struct mlx5e_tir *tir);
+
+int mlx5e_rx_res_nvmeotcp_tir_create(struct mlx5e_rx_res *res, unsigned int rxq, bool crc_rx,
+ u32 tag_buf_id, struct mlx5e_tir *tir);
+
#endif /* __MLX5_EN_RX_RES_H__ */
@@ -143,6 +143,21 @@ void mlx5e_tir_builder_build_direct(struct mlx5e_tir_builder *builder)
MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
}
+void mlx5e_tir_builder_build_nvmeotcp(struct mlx5e_tir_builder *builder, bool crc_rx,
+ u32 tag_buf_id)
+{
+ void *tirc = mlx5e_tir_builder_get_tirc(builder);
+
+ WARN_ON(builder->modify);
+
+ MLX5_SET(tirc, tirc, nvmeotcp_zero_copy_en, 1);
+ MLX5_SET(tirc, tirc, nvmeotcp_tag_buffer_table_id, tag_buf_id);
+ MLX5_SET(tirc, tirc, nvmeotcp_crc_en, !!crc_rx);
+ MLX5_SET(tirc, tirc, self_lb_block,
+ MLX5_TIRC_SELF_LB_BLOCK_BLOCK_UNICAST |
+ MLX5_TIRC_SELF_LB_BLOCK_BLOCK_MULTICAST);
+}
+
void mlx5e_tir_builder_build_tls(struct mlx5e_tir_builder *builder)
{
void *tirc = mlx5e_tir_builder_get_tirc(builder);
@@ -35,6 +35,8 @@ void mlx5e_tir_builder_build_rss(struct mlx5e_tir_builder *builder,
bool inner);
void mlx5e_tir_builder_build_direct(struct mlx5e_tir_builder *builder);
void mlx5e_tir_builder_build_tls(struct mlx5e_tir_builder *builder);
+void mlx5e_tir_builder_build_nvmeotcp(struct mlx5e_tir_builder *builder, bool crc_rx,
+ u32 tag_buf_id);
struct mlx5_core_dev;
@@ -52,6 +52,7 @@ enum mlx5e_icosq_wqe_type {
#endif
#ifdef CONFIG_MLX5_EN_NVMEOTCP
MLX5E_ICOSQ_WQE_UMR_NVMEOTCP,
+ MLX5E_ICOSQ_WQE_SET_PSV_NVMEOTCP,
#endif
};
@@ -206,6 +207,11 @@ struct mlx5e_icosq_wqe_info {
struct {
struct mlx5e_ktls_rx_resync_buf *buf;
} tls_get_params;
+#endif
+#ifdef CONFIG_MLX5_EN_NVMEOTCP
+ struct {
+ struct mlx5e_nvmeotcp_queue *queue;
+ } nvmeotcp_q;
#endif
};
};
@@ -3,6 +3,7 @@
#include <linux/netdevice.h>
#include <linux/idr.h>
+#include <linux/nvme-tcp.h>
#include "en_accel/nvmeotcp.h"
#include "en_accel/nvmeotcp_utils.h"
#include "en_accel/fs_tcp.h"
@@ -11,6 +12,11 @@
#define MAX_NUM_NVMEOTCP_QUEUES (4000)
#define MIN_NUM_NVMEOTCP_QUEUES (1)
+/* Max PDU data will be 512K */
+#define MLX5E_NVMEOTCP_MAX_SEGMENTS (128)
+#define MLX5E_NVMEOTCP_IO_THRESHOLD (32 * 1024)
+#define MLX5E_NVMEOTCP_FULL_CCID_RANGE (0)
+
static const struct rhashtable_params rhash_queues = {
.key_len = sizeof(int),
.key_offset = offsetof(struct mlx5e_nvmeotcp_queue, id),
@@ -20,6 +26,95 @@ static const struct rhashtable_params rhash_queues = {
.max_size = MAX_NUM_NVMEOTCP_QUEUES,
};
+static u32 mlx5e_get_max_sgl(struct mlx5_core_dev *mdev)
+{
+ return min_t(u32,
+ MLX5E_NVMEOTCP_MAX_SEGMENTS,
+ 1 << MLX5_CAP_GEN(mdev, log_max_klm_list_size));
+}
+
+static u32
+mlx5e_get_channel_ix_from_io_cpu(struct mlx5e_params *params, u32 io_cpu)
+{
+ int num_channels = params->num_channels;
+ u32 channel_ix = io_cpu;
+
+ if (channel_ix >= num_channels)
+ channel_ix = channel_ix % num_channels;
+
+ return channel_ix;
+}
+
+static
+int mlx5e_create_nvmeotcp_tag_buf_table(struct mlx5_core_dev *mdev,
+ struct mlx5e_nvmeotcp_queue *queue,
+ u8 log_table_size)
+{
+ u32 in[MLX5_ST_SZ_DW(create_nvmeotcp_tag_buf_table_in)] = {};
+ u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
+ u64 general_obj_types;
+ void *obj;
+ int err;
+
+ obj = MLX5_ADDR_OF(create_nvmeotcp_tag_buf_table_in, in,
+ nvmeotcp_tag_buf_table_obj);
+
+ general_obj_types = MLX5_CAP_GEN_64(mdev, general_obj_types);
+ if (!(general_obj_types &
+ MLX5_HCA_CAP_GENERAL_OBJECT_TYPES_NVMEOTCP_TAG_BUFFER_TABLE))
+ return -EINVAL;
+
+ MLX5_SET(general_obj_in_cmd_hdr, in, opcode,
+ MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
+ MLX5_SET(general_obj_in_cmd_hdr, in, obj_type,
+ MLX5_GENERAL_OBJECT_TYPES_NVMEOTCP_TAG_BUFFER_TABLE);
+ MLX5_SET(nvmeotcp_tag_buf_table_obj, obj,
+ log_tag_buffer_table_size, log_table_size);
+
+ err = mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out));
+ if (!err)
+ queue->tag_buf_table_id = MLX5_GET(general_obj_out_cmd_hdr,
+ out, obj_id);
+ return err;
+}
+
+static
+void mlx5_destroy_nvmeotcp_tag_buf_table(struct mlx5_core_dev *mdev, u32 uid)
+{
+ u32 in[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)] = {};
+ u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
+
+ MLX5_SET(general_obj_in_cmd_hdr, in, opcode,
+ MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
+ MLX5_SET(general_obj_in_cmd_hdr, in, obj_type,
+ MLX5_GENERAL_OBJECT_TYPES_NVMEOTCP_TAG_BUFFER_TABLE);
+ MLX5_SET(general_obj_in_cmd_hdr, in, obj_id, uid);
+
+ mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out));
+}
+
+static void
+fill_nvmeotcp_bsf_klm_wqe(struct mlx5e_nvmeotcp_queue *queue, struct mlx5e_umr_wqe *wqe,
+ u16 ccid, u32 klm_entries, u16 klm_offset)
+{
+ u32 i;
+
+ /* BSF_KLM_UMR is used to update the tag_buffer. To spare the
+ * need to update both mkc.length and tag_buffer[i].len in two
+ * different UMRs we initialize the tag_buffer[*].len to the
+ * maximum size of an entry so the HW check will pass and the
+ * validity of the MKEY len will be checked against the
+ * updated mkey context field.
+ */
+ for (i = 0; i < klm_entries; i++) {
+ u32 lkey = queue->ccid_table[i + klm_offset].klm_mkey;
+
+ wqe->inline_klms[i].bcount = cpu_to_be32(U32_MAX);
+ wqe->inline_klms[i].key = cpu_to_be32(lkey);
+ wqe->inline_klms[i].va = 0;
+ }
+}
+
static void
fill_nvmeotcp_klm_wqe(struct mlx5e_nvmeotcp_queue *queue, struct mlx5e_umr_wqe *wqe, u16 ccid,
u32 klm_entries, u16 klm_offset)
@@ -73,18 +168,149 @@ build_nvmeotcp_klm_umr(struct mlx5e_nvmeotcp_queue *queue, struct mlx5e_umr_wqe
ucseg->flags = MLX5_UMR_INLINE | MLX5_UMR_TRANSLATION_OFFSET_EN;
ucseg->xlt_octowords = cpu_to_be16(ALIGN(klm_entries, MLX5_UMR_KLM_NUM_ENTRIES_ALIGNMENT));
ucseg->xlt_offset = cpu_to_be16(klm_offset);
- fill_nvmeotcp_klm_wqe(queue, wqe, ccid, klm_entries, klm_offset);
+ if (klm_type == BSF_KLM_UMR)
+ fill_nvmeotcp_bsf_klm_wqe(queue, wqe, ccid, klm_entries, klm_offset);
+ else
+ fill_nvmeotcp_klm_wqe(queue, wqe, ccid, klm_entries, klm_offset);
+}
+
+static void
+fill_nvmeotcp_progress_params(struct mlx5e_nvmeotcp_queue *queue,
+ struct mlx5_seg_nvmeotcp_progress_params *params,
+ u32 seq)
+{
+ void *ctx = params->ctx;
+
+ params->tir_num = cpu_to_be32(mlx5e_tir_get_tirn(&queue->tir));
+
+ MLX5_SET(nvmeotcp_progress_params, ctx, next_pdu_tcp_sn, seq);
+ MLX5_SET(nvmeotcp_progress_params, ctx, pdu_tracker_state,
+ MLX5E_NVMEOTCP_PROGRESS_PARAMS_PDU_TRACKER_STATE_START);
+}
+
+void
+build_nvmeotcp_progress_params(struct mlx5e_nvmeotcp_queue *queue,
+ struct mlx5e_set_nvmeotcp_progress_params_wqe *wqe,
+ u32 seq)
+{
+ struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
+ u32 sqn = queue->sq.sqn;
+ u16 pc = queue->sq.pc;
+ u8 opc_mod;
+
+ memset(wqe, 0, MLX5E_NVMEOTCP_PROGRESS_PARAMS_WQE_SZ);
+ opc_mod = MLX5_CTRL_SEGMENT_OPC_MOD_UMR_NVMEOTCP_TIR_PROGRESS_PARAMS;
+ cseg->opmod_idx_opcode = cpu_to_be32((pc << MLX5_WQE_CTRL_WQE_INDEX_SHIFT) |
+ MLX5_OPCODE_SET_PSV | (opc_mod << 24));
+ cseg->qpn_ds = cpu_to_be32((sqn << MLX5_WQE_CTRL_QPN_SHIFT) |
+ PROGRESS_PARAMS_DS_CNT);
+ fill_nvmeotcp_progress_params(queue, &wqe->params, seq);
+}
+
+static void
+fill_nvmeotcp_static_params(struct mlx5e_nvmeotcp_queue *queue,
+ struct mlx5_wqe_transport_static_params_seg *params,
+ u32 resync_seq, bool ddgst_offload_en)
+{
+ void *ctx = params->ctx;
+
+ MLX5_SET(transport_static_params, ctx, const_1, 1);
+ MLX5_SET(transport_static_params, ctx, const_2, 2);
+ MLX5_SET(transport_static_params, ctx, acc_type,
+ MLX5_TRANSPORT_STATIC_PARAMS_ACC_TYPE_NVMETCP);
+ MLX5_SET(transport_static_params, ctx, nvme_resync_tcp_sn, resync_seq);
+ MLX5_SET(transport_static_params, ctx, pda, queue->pda);
+ MLX5_SET(transport_static_params, ctx, ddgst_en,
+ !!(queue->dgst & NVME_TCP_DATA_DIGEST_ENABLE));
+ MLX5_SET(transport_static_params, ctx, ddgst_offload_en, ddgst_offload_en);
+ MLX5_SET(transport_static_params, ctx, hddgst_en,
+ !!(queue->dgst & NVME_TCP_HDR_DIGEST_ENABLE));
+ MLX5_SET(transport_static_params, ctx, hdgst_offload_en, 0);
+ MLX5_SET(transport_static_params, ctx, ti,
+ MLX5_TRANSPORT_STATIC_PARAMS_TI_INITIATOR);
+ MLX5_SET(transport_static_params, ctx, cccid_ttag, 1);
+ MLX5_SET(transport_static_params, ctx, zero_copy_en, 1);
+}
+
+void
+build_nvmeotcp_static_params(struct mlx5e_nvmeotcp_queue *queue,
+ struct mlx5e_set_transport_static_params_wqe *wqe,
+ u32 resync_seq, bool crc_rx)
+{
+ u8 opc_mod = MLX5_OPC_MOD_TRANSPORT_TIR_STATIC_PARAMS;
+ struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl;
+ struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
+ u32 sqn = queue->sq.sqn;
+ u16 pc = queue->sq.pc;
+
+ memset(wqe, 0, MLX5E_TRANSPORT_STATIC_PARAMS_WQE_SZ);
+
+ cseg->opmod_idx_opcode = cpu_to_be32((pc << MLX5_WQE_CTRL_WQE_INDEX_SHIFT) |
+ MLX5_OPCODE_UMR | (opc_mod) << 24);
+ cseg->qpn_ds = cpu_to_be32((sqn << MLX5_WQE_CTRL_QPN_SHIFT) |
+ MLX5E_TRANSPORT_STATIC_PARAMS_DS_CNT);
+ cseg->imm = cpu_to_be32(mlx5e_tir_get_tirn(&queue->tir)
+ << MLX5_WQE_CTRL_TIR_TIS_INDEX_SHIFT);
+
+ ucseg->flags = MLX5_UMR_INLINE;
+ ucseg->bsf_octowords = cpu_to_be16(MLX5E_TRANSPORT_STATIC_PARAMS_OCTWORD_SIZE);
+ fill_nvmeotcp_static_params(queue, &wqe->params, resync_seq, crc_rx);
}
static void
-mlx5e_nvmeotcp_fill_wi(struct mlx5e_icosq *sq, u32 wqebbs, u16 pi)
+mlx5e_nvmeotcp_fill_wi(struct mlx5e_nvmeotcp_queue *nvmeotcp_queue,
+ struct mlx5e_icosq *sq, u32 wqebbs, u16 pi,
+ enum wqe_type type)
{
struct mlx5e_icosq_wqe_info *wi = &sq->db.wqe_info[pi];
memset(wi, 0, sizeof(*wi));
wi->num_wqebbs = wqebbs;
- wi->wqe_type = MLX5E_ICOSQ_WQE_UMR_NVMEOTCP;
+ switch (type) {
+ case SET_PSV_UMR:
+ wi->wqe_type = MLX5E_ICOSQ_WQE_SET_PSV_NVMEOTCP;
+ wi->nvmeotcp_q.queue = nvmeotcp_queue;
+ break;
+ default:
+ /* cases where no further action is required upon completion, such as ddp setup */
+ wi->wqe_type = MLX5E_ICOSQ_WQE_UMR_NVMEOTCP;
+ break;
+ }
+}
+
+static void
+mlx5e_nvmeotcp_rx_post_static_params_wqe(struct mlx5e_nvmeotcp_queue *queue, u32 resync_seq)
+{
+ struct mlx5e_set_transport_static_params_wqe *wqe;
+ struct mlx5e_icosq *sq = &queue->sq;
+ u16 pi, wqebbs;
+
+ spin_lock_bh(&queue->sq_lock);
+ wqebbs = MLX5E_TRANSPORT_SET_STATIC_PARAMS_WQEBBS;
+ pi = mlx5e_icosq_get_next_pi(sq, wqebbs);
+ wqe = MLX5E_TRANSPORT_FETCH_SET_STATIC_PARAMS_WQE(sq, pi);
+ mlx5e_nvmeotcp_fill_wi(NULL, sq, wqebbs, pi, BSF_UMR);
+ build_nvmeotcp_static_params(queue, wqe, resync_seq, queue->crc_rx);
+ sq->pc += wqebbs;
+ mlx5e_notify_hw(&sq->wq, sq->pc, sq->uar_map, &wqe->ctrl);
+ spin_unlock_bh(&queue->sq_lock);
+}
+
+static void
+mlx5e_nvmeotcp_rx_post_progress_params_wqe(struct mlx5e_nvmeotcp_queue *queue, u32 seq)
+{
+ struct mlx5e_set_nvmeotcp_progress_params_wqe *wqe;
+ struct mlx5e_icosq *sq = &queue->sq;
+ u16 pi, wqebbs;
+
+ wqebbs = MLX5E_NVMEOTCP_PROGRESS_PARAMS_WQEBBS;
+ pi = mlx5e_icosq_get_next_pi(sq, wqebbs);
+ wqe = MLX5E_NVMEOTCP_FETCH_PROGRESS_PARAMS_WQE(sq, pi);
+ mlx5e_nvmeotcp_fill_wi(queue, sq, wqebbs, pi, SET_PSV_UMR);
+ build_nvmeotcp_progress_params(queue, wqe, seq);
+ sq->pc += wqebbs;
+ mlx5e_notify_hw(&sq->wq, sq->pc, sq->uar_map, &wqe->ctrl);
}
static u32
@@ -104,7 +330,7 @@ post_klm_wqe(struct mlx5e_nvmeotcp_queue *queue,
wqebbs = DIV_ROUND_UP(wqe_sz, MLX5_SEND_WQE_BB);
pi = mlx5e_icosq_get_next_pi(sq, wqebbs);
wqe = MLX5E_NVMEOTCP_FETCH_KLM_WQE(sq, pi);
- mlx5e_nvmeotcp_fill_wi(sq, wqebbs, pi);
+ mlx5e_nvmeotcp_fill_wi(queue, sq, wqebbs, pi, wqe_type);
build_nvmeotcp_klm_umr(queue, wqe, ccid, cur_klm_entries, klm_offset,
klm_length, wqe_type);
sq->pc += wqebbs;
@@ -134,25 +360,326 @@ mlx5e_nvmeotcp_post_klm_wqe(struct mlx5e_nvmeotcp_queue *queue, enum wqe_type wq
spin_unlock_bh(&queue->sq_lock);
}
+static int mlx5e_create_nvmeotcp_mkey(struct mlx5_core_dev *mdev, u8 access_mode,
+ u32 translation_octword_size, u32 *mkey)
+{
+ int inlen = MLX5_ST_SZ_BYTES(create_mkey_in);
+ void *mkc;
+ u32 *in;
+ int err;
+
+ in = kvzalloc(inlen, GFP_KERNEL);
+ if (!in)
+ return -ENOMEM;
+
+ mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
+ MLX5_SET(mkc, mkc, free, 1);
+ MLX5_SET(mkc, mkc, translations_octword_size, translation_octword_size);
+ MLX5_SET(mkc, mkc, umr_en, 1);
+ MLX5_SET(mkc, mkc, lw, 1);
+ MLX5_SET(mkc, mkc, lr, 1);
+ MLX5_SET(mkc, mkc, access_mode_1_0, access_mode);
+
+ MLX5_SET(mkc, mkc, qpn, 0xffffff);
+ MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.hw_objs.pdn);
+
+ err = mlx5_core_create_mkey(mdev, mkey, in, inlen);
+
+ kvfree(in);
+ return err;
+}
+
static int
mlx5e_nvmeotcp_offload_limits(struct net_device *netdev,
struct ulp_ddp_limits *limits)
{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ if (limits->type != ULP_DDP_NVME)
+ return -EOPNOTSUPP;
+
+ limits->max_ddp_sgl_len = mlx5e_get_max_sgl(mdev);
+ limits->io_threshold = MLX5E_NVMEOTCP_IO_THRESHOLD;
+ limits->nvmeotcp.full_ccid_range = MLX5E_NVMEOTCP_FULL_CCID_RANGE;
return 0;
}
+static int mlx5e_nvmeotcp_queue_handler_poll(struct napi_struct *napi, int budget)
+{
+ struct mlx5e_nvmeotcp_queue_handler *qh;
+ int work_done;
+
+ qh = container_of(napi, struct mlx5e_nvmeotcp_queue_handler, napi);
+
+ work_done = mlx5e_poll_ico_cq(qh->cq, budget);
+
+ if (work_done == budget || !napi_complete_done(napi, work_done))
+ goto out;
+
+ mlx5e_cq_arm(qh->cq);
+
+out:
+ return work_done;
+}
+
+static void
+mlx5e_nvmeotcp_destroy_icosq(struct mlx5e_icosq *sq)
+{
+ mlx5e_close_icosq(sq);
+ mlx5e_close_cq(&sq->cq);
+}
+
+static void mlx5e_nvmeotcp_icosq_err_cqe_work(struct work_struct *recover_work)
+{
+ struct mlx5e_icosq *sq = container_of(recover_work, struct mlx5e_icosq, recover_work);
+
+ /* Not implemented yet. */
+
+ netdev_warn(sq->channel->netdev, "nvmeotcp icosq recovery is not implemented\n");
+}
+
+static int
+mlx5e_nvmeotcp_build_icosq(struct mlx5e_nvmeotcp_queue *queue, struct mlx5e_priv *priv, int io_cpu)
+{
+ u16 max_sgl, max_klm_per_wqe, max_umr_per_ccid, sgl_rest, wqebbs_rest;
+ struct mlx5e_channel *c = priv->channels.c[queue->channel_ix];
+ struct mlx5e_sq_param icosq_param = {};
+ struct mlx5e_create_cq_param ccp = {};
+ struct dim_cq_moder icocq_moder = {};
+ struct mlx5e_icosq *icosq;
+ int err = -ENOMEM;
+ u16 log_icosq_sz;
+ u32 max_wqebbs;
+
+ icosq = &queue->sq;
+ max_sgl = mlx5e_get_max_sgl(priv->mdev);
+ max_klm_per_wqe = queue->max_klms_per_wqe;
+ max_umr_per_ccid = max_sgl / max_klm_per_wqe;
+ sgl_rest = max_sgl % max_klm_per_wqe;
+ wqebbs_rest = sgl_rest ? MLX5E_KLM_UMR_WQEBBS(sgl_rest) : 0;
+ max_wqebbs = (MLX5E_KLM_UMR_WQEBBS(max_klm_per_wqe) *
+ max_umr_per_ccid + wqebbs_rest) * queue->size;
+ log_icosq_sz = order_base_2(max_wqebbs);
+
+ mlx5e_build_icosq_param(priv->mdev, log_icosq_sz, &icosq_param);
+ ccp.napi = &queue->qh.napi;
+ ccp.ch_stats = &priv->channel_stats[queue->channel_ix]->ch;
+ ccp.node = cpu_to_node(io_cpu);
+ ccp.ix = queue->channel_ix;
+
+ err = mlx5e_open_cq(priv, icocq_moder, &icosq_param.cqp, &ccp, &icosq->cq);
+ if (err)
+ goto err_nvmeotcp_sq;
+ err = mlx5e_open_icosq(c, &priv->channels.params, &icosq_param, icosq,
+ mlx5e_nvmeotcp_icosq_err_cqe_work);
+ if (err)
+ goto close_cq;
+
+ spin_lock_init(&queue->sq_lock);
+ return 0;
+
+close_cq:
+ mlx5e_close_cq(&icosq->cq);
+err_nvmeotcp_sq:
+ return err;
+}
+
+static void
+mlx5e_nvmeotcp_destroy_rx(struct mlx5e_priv *priv, struct mlx5e_nvmeotcp_queue *queue,
+ struct mlx5_core_dev *mdev)
+{
+ int i;
+
+ mlx5e_accel_fs_del_sk(queue->fh);
+
+ for (i = 0; i < queue->size; i++)
+ mlx5_core_destroy_mkey(mdev, queue->ccid_table[i].klm_mkey);
+
+ mlx5e_tir_destroy(&queue->tir);
+ mlx5_destroy_nvmeotcp_tag_buf_table(mdev, queue->tag_buf_table_id);
+
+ mlx5e_deactivate_icosq(&queue->sq);
+ napi_disable(&queue->qh.napi);
+ mlx5e_nvmeotcp_destroy_icosq(&queue->sq);
+ netif_napi_del(&queue->qh.napi);
+}
+
+static int
+mlx5e_nvmeotcp_queue_rx_init(struct mlx5e_nvmeotcp_queue *queue,
+ struct nvme_tcp_ddp_config *config,
+ struct net_device *netdev)
+{
+ u8 log_queue_size = order_base_2(config->queue_size);
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+ struct sock *sk = queue->sk;
+ int err, max_sgls, i;
+
+ if (config->queue_size >
+ BIT(MLX5_CAP_DEV_NVMEOTCP(mdev, log_max_nvmeotcp_tag_buffer_size)))
+ return -EINVAL;
+
+ err = mlx5e_create_nvmeotcp_tag_buf_table(mdev, queue, log_queue_size);
+ if (err)
+ return err;
+
+ queue->qh.cq = &queue->sq.cq;
+ netif_napi_add(priv->netdev, &queue->qh.napi, mlx5e_nvmeotcp_queue_handler_poll);
+
+ mutex_lock(&priv->state_lock);
+ err = mlx5e_nvmeotcp_build_icosq(queue, priv, config->io_cpu);
+ mutex_unlock(&priv->state_lock);
+ if (err)
+ goto del_napi;
+
+ napi_enable(&queue->qh.napi);
+ mlx5e_activate_icosq(&queue->sq);
+
+ /* initializes queue->tir */
+ err = mlx5e_rx_res_nvmeotcp_tir_create(priv->rx_res, queue->channel_ix, queue->crc_rx,
+ queue->tag_buf_table_id, &queue->tir);
+ if (err)
+ goto destroy_icosq;
+
+ mlx5e_nvmeotcp_rx_post_static_params_wqe(queue, 0);
+ mlx5e_nvmeotcp_rx_post_progress_params_wqe(queue, tcp_sk(sk)->copied_seq);
+
+ queue->ccid_table = kcalloc(queue->size, sizeof(struct mlx5e_nvmeotcp_queue_entry),
+ GFP_KERNEL);
+ if (!queue->ccid_table) {
+ err = -ENOMEM;
+ goto destroy_tir;
+ }
+
+ max_sgls = mlx5e_get_max_sgl(mdev);
+ for (i = 0; i < queue->size; i++) {
+ err = mlx5e_create_nvmeotcp_mkey(mdev, MLX5_MKC_ACCESS_MODE_KLMS, max_sgls,
+ &queue->ccid_table[i].klm_mkey);
+ if (err)
+ goto free_ccid_table;
+ }
+
+ mlx5e_nvmeotcp_post_klm_wqe(queue, BSF_KLM_UMR, 0, queue->size);
+
+ if (!(WARN_ON(!wait_for_completion_timeout(&queue->static_params_done,
+ msecs_to_jiffies(3000)))))
+ queue->fh = mlx5e_accel_fs_add_sk(priv->fs, sk, mlx5e_tir_get_tirn(&queue->tir),
+ queue->id);
+
+ if (IS_ERR_OR_NULL(queue->fh)) {
+ err = -EINVAL;
+ goto destroy_mkeys;
+ }
+
+ return 0;
+
+destroy_mkeys:
+ while ((i--))
+ mlx5_core_destroy_mkey(mdev, queue->ccid_table[i].klm_mkey);
+free_ccid_table:
+ kfree(queue->ccid_table);
+destroy_tir:
+ mlx5e_tir_destroy(&queue->tir);
+destroy_icosq:
+ mlx5e_deactivate_icosq(&queue->sq);
+ napi_disable(&queue->qh.napi);
+ mlx5e_nvmeotcp_destroy_icosq(&queue->sq);
+del_napi:
+ netif_napi_del(&queue->qh.napi);
+ mlx5_destroy_nvmeotcp_tag_buf_table(mdev, queue->tag_buf_table_id);
+
+ return err;
+}
+
static int
mlx5e_nvmeotcp_queue_init(struct net_device *netdev,
struct sock *sk,
struct ulp_ddp_config *tconfig)
{
+ struct nvme_tcp_ddp_config *config = &tconfig->nvmeotcp;
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+ struct mlx5e_nvmeotcp_queue *queue;
+ int queue_id, err;
+
+ if (tconfig->type != ULP_DDP_NVME) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ queue = kzalloc(sizeof(*queue), GFP_KERNEL);
+ if (!queue) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ queue_id = ida_simple_get(&priv->nvmeotcp->queue_ids,
+ MIN_NUM_NVMEOTCP_QUEUES, MAX_NUM_NVMEOTCP_QUEUES,
+ GFP_KERNEL);
+ if (queue_id < 0) {
+ err = -ENOSPC;
+ goto free_queue;
+ }
+
+ queue->crc_rx = !!(config->dgst & NVME_TCP_DATA_DIGEST_ENABLE);
+ queue->ulp_ddp_ctx.type = ULP_DDP_NVME;
+ queue->sk = sk;
+ queue->id = queue_id;
+ queue->dgst = config->dgst;
+ queue->pda = config->cpda;
+ queue->channel_ix = mlx5e_get_channel_ix_from_io_cpu(&priv->channels.params,
+ config->io_cpu);
+ queue->size = config->queue_size;
+ queue->max_klms_per_wqe = MLX5E_MAX_KLM_PER_WQE(mdev);
+ queue->priv = priv;
+ init_completion(&queue->static_params_done);
+
+ err = mlx5e_nvmeotcp_queue_rx_init(queue, config, netdev);
+ if (err)
+ goto remove_queue_id;
+
+ err = rhashtable_insert_fast(&priv->nvmeotcp->queue_hash, &queue->hash,
+ rhash_queues);
+ if (err)
+ goto destroy_rx;
+
+ write_lock_bh(&sk->sk_callback_lock);
+ ulp_ddp_set_ctx(sk, queue);
+ write_unlock_bh(&sk->sk_callback_lock);
+ refcount_set(&queue->ref_count, 1);
return 0;
+
+destroy_rx:
+ mlx5e_nvmeotcp_destroy_rx(priv, queue, mdev);
+remove_queue_id:
+ ida_simple_remove(&priv->nvmeotcp->queue_ids, queue_id);
+free_queue:
+ kfree(queue);
+out:
+ return err;
}
static void
mlx5e_nvmeotcp_queue_teardown(struct net_device *netdev,
struct sock *sk)
{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+ struct mlx5e_nvmeotcp_queue *queue;
+
+ queue = container_of(ulp_ddp_get_ctx(sk), struct mlx5e_nvmeotcp_queue, ulp_ddp_ctx);
+
+ WARN_ON(refcount_read(&queue->ref_count) != 1);
+ mlx5e_nvmeotcp_destroy_rx(priv, queue, mdev);
+
+ rhashtable_remove_fast(&priv->nvmeotcp->queue_hash, &queue->hash,
+ rhash_queues);
+ ida_simple_remove(&priv->nvmeotcp->queue_ids, queue->id);
+ write_lock_bh(&sk->sk_callback_lock);
+ ulp_ddp_set_ctx(sk, NULL);
+ write_unlock_bh(&sk->sk_callback_lock);
+ mlx5e_nvmeotcp_put_queue(queue);
}
static int
@@ -171,6 +698,13 @@ mlx5e_nvmeotcp_ddp_setup(struct net_device *netdev,
return 0;
}
+void mlx5e_nvmeotcp_ctx_complete(struct mlx5e_icosq_wqe_info *wi)
+{
+ struct mlx5e_nvmeotcp_queue *queue = wi->nvmeotcp_q.queue;
+
+ complete(&queue->static_params_done);
+}
+
static void
mlx5e_nvmeotcp_ddp_teardown(struct net_device *netdev,
struct sock *sk,
@@ -194,6 +728,26 @@ const struct ulp_ddp_dev_ops mlx5e_nvmeotcp_ops = {
.ulp_ddp_resync = mlx5e_nvmeotcp_ddp_resync,
};
+struct mlx5e_nvmeotcp_queue *
+mlx5e_nvmeotcp_get_queue(struct mlx5e_nvmeotcp *nvmeotcp, int id)
+{
+ struct mlx5e_nvmeotcp_queue *queue;
+
+ queue = rhashtable_lookup_fast(&nvmeotcp->queue_hash,
+ &id, rhash_queues);
+ if (!IS_ERR_OR_NULL(queue))
+ refcount_inc(&queue->ref_count);
+ return queue;
+}
+
+void mlx5e_nvmeotcp_put_queue(struct mlx5e_nvmeotcp_queue *queue)
+{
+ if (refcount_dec_and_test(&queue->ref_count)) {
+ kfree(queue->ccid_table);
+ kfree(queue);
+ }
+}
+
int set_ulp_ddp_nvme_tcp(struct net_device *netdev, bool enable)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
@@ -106,6 +106,10 @@ void mlx5e_nvmeotcp_build_netdev(struct mlx5e_priv *priv);
int mlx5e_nvmeotcp_init(struct mlx5e_priv *priv);
int set_ulp_ddp_nvme_tcp(struct net_device *netdev, bool enable);
void mlx5e_nvmeotcp_cleanup(struct mlx5e_priv *priv);
+struct mlx5e_nvmeotcp_queue *
+mlx5e_nvmeotcp_get_queue(struct mlx5e_nvmeotcp *nvmeotcp, int id);
+void mlx5e_nvmeotcp_put_queue(struct mlx5e_nvmeotcp_queue *queue);
+void mlx5e_nvmeotcp_ctx_complete(struct mlx5e_icosq_wqe_info *wi);
static inline void mlx5e_nvmeotcp_init_rx(struct mlx5e_priv *priv) {}
void mlx5e_nvmeotcp_cleanup_rx(struct mlx5e_priv *priv);
extern const struct ulp_ddp_dev_ops mlx5e_nvmeotcp_ops;
@@ -4,6 +4,35 @@
#define __MLX5E_NVMEOTCP_UTILS_H__
#include "en.h"
+#include "en_accel/nvmeotcp.h"
+#include "en_accel/common_utils.h"
+
+enum {
+ MLX5E_NVMEOTCP_PROGRESS_PARAMS_PDU_TRACKER_STATE_START = 0,
+ MLX5E_NVMEOTCP_PROGRESS_PARAMS_PDU_TRACKER_STATE_TRACKING = 1,
+ MLX5E_NVMEOTCP_PROGRESS_PARAMS_PDU_TRACKER_STATE_SEARCHING = 2,
+};
+
+struct mlx5_seg_nvmeotcp_progress_params {
+ __be32 tir_num;
+ u8 ctx[MLX5_ST_SZ_BYTES(nvmeotcp_progress_params)];
+};
+
+struct mlx5e_set_nvmeotcp_progress_params_wqe {
+ struct mlx5_wqe_ctrl_seg ctrl;
+ struct mlx5_seg_nvmeotcp_progress_params params;
+};
+
+/* macros for wqe handling */
+#define MLX5E_NVMEOTCP_PROGRESS_PARAMS_WQE_SZ \
+ (sizeof(struct mlx5e_set_nvmeotcp_progress_params_wqe))
+
+#define MLX5E_NVMEOTCP_PROGRESS_PARAMS_WQEBBS \
+ (DIV_ROUND_UP(MLX5E_NVMEOTCP_PROGRESS_PARAMS_WQE_SZ, MLX5_SEND_WQE_BB))
+
+#define MLX5E_NVMEOTCP_FETCH_PROGRESS_PARAMS_WQE(sq, pi) \
+ ((struct mlx5e_set_nvmeotcp_progress_params_wqe *)\
+ mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_set_nvmeotcp_progress_params_wqe)))
#define MLX5E_NVMEOTCP_FETCH_KLM_WQE(sq, pi) \
((struct mlx5e_umr_wqe *)\
@@ -14,6 +43,9 @@
#define MLX5_CTRL_SEGMENT_OPC_MOD_UMR_TIR_PARAMS 0x2
#define MLX5_CTRL_SEGMENT_OPC_MOD_UMR_UMR 0x0
+#define PROGRESS_PARAMS_DS_CNT \
+ DIV_ROUND_UP(MLX5E_NVMEOTCP_PROGRESS_PARAMS_WQE_SZ, MLX5_SEND_WQE_DS)
+
enum wqe_type {
KLM_UMR,
BSF_KLM_UMR,
@@ -22,4 +54,13 @@ enum wqe_type {
KLM_INV_UMR,
};
+void
+build_nvmeotcp_progress_params(struct mlx5e_nvmeotcp_queue *queue,
+ struct mlx5e_set_nvmeotcp_progress_params_wqe *wqe, u32 seq);
+
+void
+build_nvmeotcp_static_params(struct mlx5e_nvmeotcp_queue *queue,
+ struct mlx5e_set_transport_static_params_wqe *wqe,
+ u32 resync_seq, bool crc_rx);
+
#endif /* __MLX5E_NVMEOTCP_UTILS_H__ */
@@ -1739,9 +1739,9 @@ void mlx5e_tx_err_cqe_work(struct work_struct *recover_work)
mlx5e_reporter_tx_err_cqe(sq);
}
-static int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
- struct mlx5e_sq_param *param, struct mlx5e_icosq *sq,
- work_func_t recover_work_func)
+int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
+ struct mlx5e_sq_param *param, struct mlx5e_icosq *sq,
+ work_func_t recover_work_func)
{
struct mlx5e_create_sq_param csp = {};
int err;
@@ -1785,7 +1785,7 @@ void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq)
synchronize_net(); /* Sync with NAPI. */
}
-static void mlx5e_close_icosq(struct mlx5e_icosq *sq)
+void mlx5e_close_icosq(struct mlx5e_icosq *sq)
{
if (sq->ktls_resync)
mlx5e_ktls_rx_resync_destroy_resp_list(sq->ktls_resync);
@@ -53,6 +53,7 @@
#include "en_accel/macsec.h"
#include "en_accel/ipsec_rxtx.h"
#include "en_accel/ktls_txrx.h"
+#include "en_accel/nvmeotcp.h"
#include "en/xdp.h"
#include "en/xsk/rx.h"
#include "en/health.h"
@@ -880,16 +881,23 @@ void mlx5e_free_icosq_descs(struct mlx5e_icosq *sq)
ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sqcc);
wi = &sq->db.wqe_info[ci];
sqcc += wi->num_wqebbs;
-#ifdef CONFIG_MLX5_EN_TLS
switch (wi->wqe_type) {
+#ifdef CONFIG_MLX5_EN_TLS
case MLX5E_ICOSQ_WQE_SET_PSV_TLS:
mlx5e_ktls_handle_ctx_completion(wi);
break;
case MLX5E_ICOSQ_WQE_GET_PSV_TLS:
mlx5e_ktls_handle_get_psv_completion(wi, sq);
break;
- }
#endif
+#ifdef CONFIG_MLX5_EN_NVMEOTCP
+ case MLX5E_ICOSQ_WQE_SET_PSV_NVMEOTCP:
+ mlx5e_nvmeotcp_ctx_complete(wi);
+ break;
+#endif
+ default:
+ break;
+ }
}
sq->cc = sqcc;
}
@@ -988,6 +996,9 @@ int mlx5e_poll_ico_cq(struct mlx5e_cq *cq, int budget)
#ifdef CONFIG_MLX5_EN_NVMEOTCP
case MLX5E_ICOSQ_WQE_UMR_NVMEOTCP:
break;
+ case MLX5E_ICOSQ_WQE_SET_PSV_NVMEOTCP:
+ mlx5e_nvmeotcp_ctx_complete(wi);
+ break;
#endif
default:
netdev_WARN_ONCE(cq->netdev,