1dc7e38acSHans Petter Selasky /*- 2dc7e38acSHans Petter Selasky * Copyright (c) 2013-2015, Mellanox Technologies, Ltd. All rights reserved. 3dc7e38acSHans Petter Selasky * 4dc7e38acSHans Petter Selasky * Redistribution and use in source and binary forms, with or without 5dc7e38acSHans Petter Selasky * modification, are permitted provided that the following conditions 6dc7e38acSHans Petter Selasky * are met: 7dc7e38acSHans Petter Selasky * 1. Redistributions of source code must retain the above copyright 8dc7e38acSHans Petter Selasky * notice, this list of conditions and the following disclaimer. 9dc7e38acSHans Petter Selasky * 2. Redistributions in binary form must reproduce the above copyright 10dc7e38acSHans Petter Selasky * notice, this list of conditions and the following disclaimer in the 11dc7e38acSHans Petter Selasky * documentation and/or other materials provided with the distribution. 12dc7e38acSHans Petter Selasky * 13dc7e38acSHans Petter Selasky * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14dc7e38acSHans Petter Selasky * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15dc7e38acSHans Petter Selasky * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16dc7e38acSHans Petter Selasky * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17dc7e38acSHans Petter Selasky * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18dc7e38acSHans Petter Selasky * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19dc7e38acSHans Petter Selasky * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20dc7e38acSHans Petter Selasky * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21dc7e38acSHans Petter Selasky * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22dc7e38acSHans Petter Selasky * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23dc7e38acSHans Petter Selasky * SUCH DAMAGE. 24dc7e38acSHans Petter Selasky * 25dc7e38acSHans Petter Selasky * $FreeBSD$ 26dc7e38acSHans Petter Selasky */ 27dc7e38acSHans Petter Selasky 28dc7e38acSHans Petter Selasky #include <linux/module.h> 29dc7e38acSHans Petter Selasky #include <linux/errno.h> 30dc7e38acSHans Petter Selasky #include <linux/pci.h> 31dc7e38acSHans Petter Selasky #include <linux/dma-mapping.h> 32dc7e38acSHans Petter Selasky #include <linux/slab.h> 33dc7e38acSHans Petter Selasky #include <linux/delay.h> 34dc7e38acSHans Petter Selasky #include <linux/random.h> 35dc7e38acSHans Petter Selasky #include <linux/io-mapping.h> 36dc7e38acSHans Petter Selasky #include <linux/hardirq.h> 37dc7e38acSHans Petter Selasky #include <linux/ktime.h> 38dc7e38acSHans Petter Selasky #include <dev/mlx5/driver.h> 39dc7e38acSHans Petter Selasky 40dc7e38acSHans Petter Selasky #include "mlx5_core.h" 41dc7e38acSHans Petter Selasky 42dc7e38acSHans Petter Selasky enum { 43dc7e38acSHans Petter Selasky CMD_IF_REV = 5, 44dc7e38acSHans Petter Selasky }; 45dc7e38acSHans Petter Selasky 46dc7e38acSHans Petter Selasky enum { 47dc7e38acSHans Petter Selasky CMD_MODE_POLLING, 48dc7e38acSHans Petter Selasky CMD_MODE_EVENTS 49dc7e38acSHans Petter Selasky }; 50dc7e38acSHans Petter Selasky 51dc7e38acSHans Petter Selasky enum { 52dc7e38acSHans Petter Selasky NUM_LONG_LISTS = 2, 53dc7e38acSHans Petter Selasky NUM_MED_LISTS = 64, 54dc7e38acSHans Petter Selasky LONG_LIST_SIZE = (2ULL * 1024 * 1024 * 1024 / PAGE_SIZE) * 8 + 16 + 55dc7e38acSHans Petter Selasky MLX5_CMD_DATA_BLOCK_SIZE, 56dc7e38acSHans Petter Selasky MED_LIST_SIZE = 16 + MLX5_CMD_DATA_BLOCK_SIZE, 57dc7e38acSHans Petter Selasky }; 58dc7e38acSHans Petter Selasky 59dc7e38acSHans Petter Selasky enum { 60dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_OK = 0x0, 61dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_SIGNAT_ERR = 0x1, 62dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_TOK_ERR = 0x2, 63dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_BAD_BLK_NUM_ERR = 0x3, 64dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_OUT_PTR_ALIGN_ERR = 0x4, 65dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_IN_PTR_ALIGN_ERR = 0x5, 66dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_FW_ERR = 0x6, 67dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_IN_LENGTH_ERR = 0x7, 68dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_OUT_LENGTH_ERR = 0x8, 69dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_RES_FLD_NOT_CLR_ERR = 0x9, 70dc7e38acSHans Petter Selasky MLX5_CMD_DELIVERY_STAT_CMD_DESCR_ERR = 0x10, 71dc7e38acSHans Petter Selasky }; 72dc7e38acSHans Petter Selasky 73dc7e38acSHans Petter Selasky static struct mlx5_cmd_work_ent *alloc_cmd(struct mlx5_cmd *cmd, 74dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *in, 75dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *out, 76dc7e38acSHans Petter Selasky void *uout, int uout_size, 77dc7e38acSHans Petter Selasky mlx5_cmd_cbk_t cbk, 78dc7e38acSHans Petter Selasky void *context, int page_queue) 79dc7e38acSHans Petter Selasky { 80dc7e38acSHans Petter Selasky gfp_t alloc_flags = cbk ? GFP_ATOMIC : GFP_KERNEL; 81dc7e38acSHans Petter Selasky struct mlx5_cmd_work_ent *ent; 82dc7e38acSHans Petter Selasky 83dc7e38acSHans Petter Selasky ent = kzalloc(sizeof(*ent), alloc_flags); 84dc7e38acSHans Petter Selasky if (!ent) 85dc7e38acSHans Petter Selasky return ERR_PTR(-ENOMEM); 86dc7e38acSHans Petter Selasky 87dc7e38acSHans Petter Selasky ent->in = in; 88dc7e38acSHans Petter Selasky ent->out = out; 89dc7e38acSHans Petter Selasky ent->uout = uout; 90dc7e38acSHans Petter Selasky ent->uout_size = uout_size; 91dc7e38acSHans Petter Selasky ent->callback = cbk; 92dc7e38acSHans Petter Selasky ent->context = context; 93dc7e38acSHans Petter Selasky ent->cmd = cmd; 94dc7e38acSHans Petter Selasky ent->page_queue = page_queue; 95dc7e38acSHans Petter Selasky 96dc7e38acSHans Petter Selasky return ent; 97dc7e38acSHans Petter Selasky } 98dc7e38acSHans Petter Selasky 99dc7e38acSHans Petter Selasky static u8 alloc_token(struct mlx5_cmd *cmd) 100dc7e38acSHans Petter Selasky { 101dc7e38acSHans Petter Selasky u8 token; 102dc7e38acSHans Petter Selasky 103dc7e38acSHans Petter Selasky spin_lock(&cmd->token_lock); 104dc7e38acSHans Petter Selasky cmd->token++; 105dc7e38acSHans Petter Selasky if (cmd->token == 0) 106dc7e38acSHans Petter Selasky cmd->token++; 107dc7e38acSHans Petter Selasky token = cmd->token; 108dc7e38acSHans Petter Selasky spin_unlock(&cmd->token_lock); 109dc7e38acSHans Petter Selasky 110dc7e38acSHans Petter Selasky return token; 111dc7e38acSHans Petter Selasky } 112dc7e38acSHans Petter Selasky 113dc7e38acSHans Petter Selasky static int alloc_ent(struct mlx5_cmd *cmd) 114dc7e38acSHans Petter Selasky { 115dc7e38acSHans Petter Selasky unsigned long flags; 116dc7e38acSHans Petter Selasky int ret; 117dc7e38acSHans Petter Selasky 118dc7e38acSHans Petter Selasky spin_lock_irqsave(&cmd->alloc_lock, flags); 119dc7e38acSHans Petter Selasky ret = find_first_bit(&cmd->bitmask, cmd->max_reg_cmds); 120dc7e38acSHans Petter Selasky if (ret < cmd->max_reg_cmds) 121dc7e38acSHans Petter Selasky clear_bit(ret, &cmd->bitmask); 122dc7e38acSHans Petter Selasky spin_unlock_irqrestore(&cmd->alloc_lock, flags); 123dc7e38acSHans Petter Selasky 124cb4e4a6eSHans Petter Selasky return ret < cmd->max_reg_cmds ? ret : -1; 125dc7e38acSHans Petter Selasky } 126dc7e38acSHans Petter Selasky 127dc7e38acSHans Petter Selasky static void free_ent(struct mlx5_cmd *cmd, int idx) 128dc7e38acSHans Petter Selasky { 129dc7e38acSHans Petter Selasky unsigned long flags; 130dc7e38acSHans Petter Selasky 131dc7e38acSHans Petter Selasky spin_lock_irqsave(&cmd->alloc_lock, flags); 132dc7e38acSHans Petter Selasky set_bit(idx, &cmd->bitmask); 133dc7e38acSHans Petter Selasky spin_unlock_irqrestore(&cmd->alloc_lock, flags); 134dc7e38acSHans Petter Selasky } 135dc7e38acSHans Petter Selasky 136dc7e38acSHans Petter Selasky static struct mlx5_cmd_layout *get_inst(struct mlx5_cmd *cmd, int idx) 137dc7e38acSHans Petter Selasky { 138dc7e38acSHans Petter Selasky return cmd->cmd_buf + (idx << cmd->log_stride); 139dc7e38acSHans Petter Selasky } 140dc7e38acSHans Petter Selasky 141dc7e38acSHans Petter Selasky static u8 xor8_buf(void *buf, int len) 142dc7e38acSHans Petter Selasky { 143dc7e38acSHans Petter Selasky u8 *ptr = buf; 144dc7e38acSHans Petter Selasky u8 sum = 0; 145dc7e38acSHans Petter Selasky int i; 146dc7e38acSHans Petter Selasky 147dc7e38acSHans Petter Selasky for (i = 0; i < len; i++) 148dc7e38acSHans Petter Selasky sum ^= ptr[i]; 149dc7e38acSHans Petter Selasky 150dc7e38acSHans Petter Selasky return sum; 151dc7e38acSHans Petter Selasky } 152dc7e38acSHans Petter Selasky 153dc7e38acSHans Petter Selasky static int verify_block_sig(struct mlx5_cmd_prot_block *block) 154dc7e38acSHans Petter Selasky { 155dc7e38acSHans Petter Selasky if (xor8_buf(block->rsvd0, sizeof(*block) - sizeof(block->data) - 1) != 0xff) 156dc7e38acSHans Petter Selasky return -EINVAL; 157dc7e38acSHans Petter Selasky 158dc7e38acSHans Petter Selasky if (xor8_buf(block, sizeof(*block)) != 0xff) 159dc7e38acSHans Petter Selasky return -EINVAL; 160dc7e38acSHans Petter Selasky 161dc7e38acSHans Petter Selasky return 0; 162dc7e38acSHans Petter Selasky } 163dc7e38acSHans Petter Selasky 164dc7e38acSHans Petter Selasky static void calc_block_sig(struct mlx5_cmd_prot_block *block, u8 token, 165dc7e38acSHans Petter Selasky int csum) 166dc7e38acSHans Petter Selasky { 167dc7e38acSHans Petter Selasky block->token = token; 168dc7e38acSHans Petter Selasky if (csum) { 169dc7e38acSHans Petter Selasky block->ctrl_sig = ~xor8_buf(block->rsvd0, sizeof(*block) - 170dc7e38acSHans Petter Selasky sizeof(block->data) - 2); 171dc7e38acSHans Petter Selasky block->sig = ~xor8_buf(block, sizeof(*block) - 1); 172dc7e38acSHans Petter Selasky } 173dc7e38acSHans Petter Selasky } 174dc7e38acSHans Petter Selasky 175dc7e38acSHans Petter Selasky static void calc_chain_sig(struct mlx5_cmd_msg *msg, u8 token, int csum) 176dc7e38acSHans Petter Selasky { 177dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *next = msg->next; 178dc7e38acSHans Petter Selasky 179dc7e38acSHans Petter Selasky while (next) { 180dc7e38acSHans Petter Selasky calc_block_sig(next->buf, token, csum); 181dc7e38acSHans Petter Selasky next = next->next; 182dc7e38acSHans Petter Selasky } 183dc7e38acSHans Petter Selasky } 184dc7e38acSHans Petter Selasky 185dc7e38acSHans Petter Selasky static void set_signature(struct mlx5_cmd_work_ent *ent, int csum) 186dc7e38acSHans Petter Selasky { 187dc7e38acSHans Petter Selasky ent->lay->sig = ~xor8_buf(ent->lay, sizeof(*ent->lay)); 188dc7e38acSHans Petter Selasky calc_chain_sig(ent->in, ent->token, csum); 189dc7e38acSHans Petter Selasky calc_chain_sig(ent->out, ent->token, csum); 190dc7e38acSHans Petter Selasky } 191dc7e38acSHans Petter Selasky 192dc7e38acSHans Petter Selasky static void poll_timeout(struct mlx5_cmd_work_ent *ent) 193dc7e38acSHans Petter Selasky { 194dc7e38acSHans Petter Selasky int poll_end = jiffies + msecs_to_jiffies(MLX5_CMD_TIMEOUT_MSEC + 1000); 195dc7e38acSHans Petter Selasky u8 own; 196dc7e38acSHans Petter Selasky 197dc7e38acSHans Petter Selasky do { 198dc7e38acSHans Petter Selasky own = ent->lay->status_own; 199dc7e38acSHans Petter Selasky if (!(own & CMD_OWNER_HW)) { 200dc7e38acSHans Petter Selasky ent->ret = 0; 201dc7e38acSHans Petter Selasky return; 202dc7e38acSHans Petter Selasky } 203dc7e38acSHans Petter Selasky usleep_range(5000, 10000); 204dc7e38acSHans Petter Selasky } while (time_before(jiffies, poll_end)); 205dc7e38acSHans Petter Selasky 206dc7e38acSHans Petter Selasky ent->ret = -ETIMEDOUT; 207dc7e38acSHans Petter Selasky } 208dc7e38acSHans Petter Selasky 209dc7e38acSHans Petter Selasky static void free_cmd(struct mlx5_cmd_work_ent *ent) 210dc7e38acSHans Petter Selasky { 211dc7e38acSHans Petter Selasky kfree(ent); 212dc7e38acSHans Petter Selasky } 213dc7e38acSHans Petter Selasky 214dc7e38acSHans Petter Selasky 215dc7e38acSHans Petter Selasky static int verify_signature(struct mlx5_cmd_work_ent *ent) 216dc7e38acSHans Petter Selasky { 217dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *next = ent->out->next; 218dc7e38acSHans Petter Selasky int err; 219dc7e38acSHans Petter Selasky u8 sig; 220dc7e38acSHans Petter Selasky 221dc7e38acSHans Petter Selasky sig = xor8_buf(ent->lay, sizeof(*ent->lay)); 222dc7e38acSHans Petter Selasky if (sig != 0xff) 223dc7e38acSHans Petter Selasky return -EINVAL; 224dc7e38acSHans Petter Selasky 225dc7e38acSHans Petter Selasky while (next) { 226dc7e38acSHans Petter Selasky err = verify_block_sig(next->buf); 227dc7e38acSHans Petter Selasky if (err) 228dc7e38acSHans Petter Selasky return err; 229dc7e38acSHans Petter Selasky 230dc7e38acSHans Petter Selasky next = next->next; 231dc7e38acSHans Petter Selasky } 232dc7e38acSHans Petter Selasky 233dc7e38acSHans Petter Selasky return 0; 234dc7e38acSHans Petter Selasky } 235dc7e38acSHans Petter Selasky 236dc7e38acSHans Petter Selasky static void dump_buf(void *buf, int size, int data_only, int offset) 237dc7e38acSHans Petter Selasky { 238dc7e38acSHans Petter Selasky __be32 *p = buf; 239dc7e38acSHans Petter Selasky int i; 240dc7e38acSHans Petter Selasky 241dc7e38acSHans Petter Selasky for (i = 0; i < size; i += 16) { 242dc7e38acSHans Petter Selasky pr_debug("%03x: %08x %08x %08x %08x\n", offset, be32_to_cpu(p[0]), 243dc7e38acSHans Petter Selasky be32_to_cpu(p[1]), be32_to_cpu(p[2]), 244dc7e38acSHans Petter Selasky be32_to_cpu(p[3])); 245dc7e38acSHans Petter Selasky p += 4; 246dc7e38acSHans Petter Selasky offset += 16; 247dc7e38acSHans Petter Selasky } 248dc7e38acSHans Petter Selasky if (!data_only) 249dc7e38acSHans Petter Selasky pr_debug("\n"); 250dc7e38acSHans Petter Selasky } 251dc7e38acSHans Petter Selasky 252dc7e38acSHans Petter Selasky const char *mlx5_command_str(int command) 253dc7e38acSHans Petter Selasky { 254dc7e38acSHans Petter Selasky switch (command) { 255dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_HCA_CAP: 256dc7e38acSHans Petter Selasky return "QUERY_HCA_CAP"; 257dc7e38acSHans Petter Selasky 258dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SET_HCA_CAP: 259dc7e38acSHans Petter Selasky return "SET_HCA_CAP"; 260dc7e38acSHans Petter Selasky 261dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_ADAPTER: 262dc7e38acSHans Petter Selasky return "QUERY_ADAPTER"; 263dc7e38acSHans Petter Selasky 264dc7e38acSHans Petter Selasky case MLX5_CMD_OP_INIT_HCA: 265dc7e38acSHans Petter Selasky return "INIT_HCA"; 266dc7e38acSHans Petter Selasky 267dc7e38acSHans Petter Selasky case MLX5_CMD_OP_TEARDOWN_HCA: 268dc7e38acSHans Petter Selasky return "TEARDOWN_HCA"; 269dc7e38acSHans Petter Selasky 270dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ENABLE_HCA: 271dc7e38acSHans Petter Selasky return "MLX5_CMD_OP_ENABLE_HCA"; 272dc7e38acSHans Petter Selasky 273dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DISABLE_HCA: 274dc7e38acSHans Petter Selasky return "MLX5_CMD_OP_DISABLE_HCA"; 275dc7e38acSHans Petter Selasky 276dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_PAGES: 277dc7e38acSHans Petter Selasky return "QUERY_PAGES"; 278dc7e38acSHans Petter Selasky 279dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MANAGE_PAGES: 280dc7e38acSHans Petter Selasky return "MANAGE_PAGES"; 281dc7e38acSHans Petter Selasky 282dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_ISSI: 283dc7e38acSHans Petter Selasky return "QUERY_ISSI"; 284dc7e38acSHans Petter Selasky 285dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SET_ISSI: 286dc7e38acSHans Petter Selasky return "SET_ISSI"; 287dc7e38acSHans Petter Selasky 288dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_MKEY: 289dc7e38acSHans Petter Selasky return "CREATE_MKEY"; 290dc7e38acSHans Petter Selasky 291dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_MKEY: 292dc7e38acSHans Petter Selasky return "QUERY_MKEY"; 293dc7e38acSHans Petter Selasky 294dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_MKEY: 295dc7e38acSHans Petter Selasky return "DESTROY_MKEY"; 296dc7e38acSHans Petter Selasky 297dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS: 298dc7e38acSHans Petter Selasky return "QUERY_SPECIAL_CONTEXTS"; 299dc7e38acSHans Petter Selasky 300dc7e38acSHans Petter Selasky case MLX5_CMD_OP_PAGE_FAULT_RESUME: 301dc7e38acSHans Petter Selasky return "PAGE_FAULT_RESUME"; 302dc7e38acSHans Petter Selasky 303dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_EQ: 304dc7e38acSHans Petter Selasky return "CREATE_EQ"; 305dc7e38acSHans Petter Selasky 306dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_EQ: 307dc7e38acSHans Petter Selasky return "DESTROY_EQ"; 308dc7e38acSHans Petter Selasky 309dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_EQ: 310dc7e38acSHans Petter Selasky return "QUERY_EQ"; 311dc7e38acSHans Petter Selasky 312dc7e38acSHans Petter Selasky case MLX5_CMD_OP_GEN_EQE: 313dc7e38acSHans Petter Selasky return "GEN_EQE"; 314dc7e38acSHans Petter Selasky 315dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_CQ: 316dc7e38acSHans Petter Selasky return "CREATE_CQ"; 317dc7e38acSHans Petter Selasky 318dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_CQ: 319dc7e38acSHans Petter Selasky return "DESTROY_CQ"; 320dc7e38acSHans Petter Selasky 321dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_CQ: 322dc7e38acSHans Petter Selasky return "QUERY_CQ"; 323dc7e38acSHans Petter Selasky 324dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_CQ: 325dc7e38acSHans Petter Selasky return "MODIFY_CQ"; 326dc7e38acSHans Petter Selasky 327dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_QP: 328dc7e38acSHans Petter Selasky return "CREATE_QP"; 329dc7e38acSHans Petter Selasky 330dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_QP: 331dc7e38acSHans Petter Selasky return "DESTROY_QP"; 332dc7e38acSHans Petter Selasky 333dc7e38acSHans Petter Selasky case MLX5_CMD_OP_RST2INIT_QP: 334dc7e38acSHans Petter Selasky return "RST2INIT_QP"; 335dc7e38acSHans Petter Selasky 336dc7e38acSHans Petter Selasky case MLX5_CMD_OP_INIT2RTR_QP: 337dc7e38acSHans Petter Selasky return "INIT2RTR_QP"; 338dc7e38acSHans Petter Selasky 339dc7e38acSHans Petter Selasky case MLX5_CMD_OP_RTR2RTS_QP: 340dc7e38acSHans Petter Selasky return "RTR2RTS_QP"; 341dc7e38acSHans Petter Selasky 342dc7e38acSHans Petter Selasky case MLX5_CMD_OP_RTS2RTS_QP: 343dc7e38acSHans Petter Selasky return "RTS2RTS_QP"; 344dc7e38acSHans Petter Selasky 345dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SQERR2RTS_QP: 346dc7e38acSHans Petter Selasky return "SQERR2RTS_QP"; 347dc7e38acSHans Petter Selasky 348dc7e38acSHans Petter Selasky case MLX5_CMD_OP_2ERR_QP: 349dc7e38acSHans Petter Selasky return "2ERR_QP"; 350dc7e38acSHans Petter Selasky 351dc7e38acSHans Petter Selasky case MLX5_CMD_OP_2RST_QP: 352dc7e38acSHans Petter Selasky return "2RST_QP"; 353dc7e38acSHans Petter Selasky 354dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_QP: 355dc7e38acSHans Petter Selasky return "QUERY_QP"; 356dc7e38acSHans Petter Selasky 357dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SQD_RTS_QP: 358dc7e38acSHans Petter Selasky return "SQD_RTS_QP"; 359dc7e38acSHans Petter Selasky 360dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MAD_IFC: 361dc7e38acSHans Petter Selasky return "MAD_IFC"; 362dc7e38acSHans Petter Selasky 363dc7e38acSHans Petter Selasky case MLX5_CMD_OP_INIT2INIT_QP: 364dc7e38acSHans Petter Selasky return "INIT2INIT_QP"; 365dc7e38acSHans Petter Selasky 366dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_PSV: 367dc7e38acSHans Petter Selasky return "CREATE_PSV"; 368dc7e38acSHans Petter Selasky 369dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_PSV: 370dc7e38acSHans Petter Selasky return "DESTROY_PSV"; 371dc7e38acSHans Petter Selasky 372dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_SRQ: 373dc7e38acSHans Petter Selasky return "CREATE_SRQ"; 374dc7e38acSHans Petter Selasky 375dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_SRQ: 376dc7e38acSHans Petter Selasky return "DESTROY_SRQ"; 377dc7e38acSHans Petter Selasky 378dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_SRQ: 379dc7e38acSHans Petter Selasky return "QUERY_SRQ"; 380dc7e38acSHans Petter Selasky 381dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ARM_RQ: 382dc7e38acSHans Petter Selasky return "ARM_RQ"; 383dc7e38acSHans Petter Selasky 384dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_XRC_SRQ: 385dc7e38acSHans Petter Selasky return "CREATE_XRC_SRQ"; 386dc7e38acSHans Petter Selasky 387dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_XRC_SRQ: 388dc7e38acSHans Petter Selasky return "DESTROY_XRC_SRQ"; 389dc7e38acSHans Petter Selasky 390dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_XRC_SRQ: 391dc7e38acSHans Petter Selasky return "QUERY_XRC_SRQ"; 392dc7e38acSHans Petter Selasky 393dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ARM_XRC_SRQ: 394dc7e38acSHans Petter Selasky return "ARM_XRC_SRQ"; 395dc7e38acSHans Petter Selasky 396dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_DCT: 397dc7e38acSHans Petter Selasky return "CREATE_DCT"; 398dc7e38acSHans Petter Selasky 399cb4e4a6eSHans Petter Selasky case MLX5_CMD_OP_SET_DC_CNAK_TRACE: 400cb4e4a6eSHans Petter Selasky return "SET_DC_CNAK_TRACE"; 401cb4e4a6eSHans Petter Selasky 402dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_DCT: 403dc7e38acSHans Petter Selasky return "DESTROY_DCT"; 404dc7e38acSHans Petter Selasky 405dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DRAIN_DCT: 406dc7e38acSHans Petter Selasky return "DRAIN_DCT"; 407dc7e38acSHans Petter Selasky 408dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_DCT: 409dc7e38acSHans Petter Selasky return "QUERY_DCT"; 410dc7e38acSHans Petter Selasky 411dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION: 412dc7e38acSHans Petter Selasky return "ARM_DCT_FOR_KEY_VIOLATION"; 413dc7e38acSHans Petter Selasky 414dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_VPORT_STATE: 415dc7e38acSHans Petter Selasky return "QUERY_VPORT_STATE"; 416dc7e38acSHans Petter Selasky 417dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_VPORT_STATE: 418dc7e38acSHans Petter Selasky return "MODIFY_VPORT_STATE"; 419dc7e38acSHans Petter Selasky 420dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT: 421dc7e38acSHans Petter Selasky return "QUERY_ESW_VPORT_CONTEXT"; 422dc7e38acSHans Petter Selasky 423dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT: 424dc7e38acSHans Petter Selasky return "MODIFY_ESW_VPORT_CONTEXT"; 425dc7e38acSHans Petter Selasky 426dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT: 427dc7e38acSHans Petter Selasky return "QUERY_NIC_VPORT_CONTEXT"; 428dc7e38acSHans Petter Selasky 429dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT: 430dc7e38acSHans Petter Selasky return "MODIFY_NIC_VPORT_CONTEXT"; 431dc7e38acSHans Petter Selasky 432dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_ROCE_ADDRESS: 433dc7e38acSHans Petter Selasky return "QUERY_ROCE_ADDRESS"; 434dc7e38acSHans Petter Selasky 435dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SET_ROCE_ADDRESS: 436dc7e38acSHans Petter Selasky return "SET_ROCE_ADDRESS"; 437dc7e38acSHans Petter Selasky 438dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT: 439dc7e38acSHans Petter Selasky return "QUERY_HCA_VPORT_CONTEXT"; 440dc7e38acSHans Petter Selasky 441dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_HCA_VPORT_CONTEXT: 442dc7e38acSHans Petter Selasky return "MODIFY_HCA_VPORT_CONTEXT"; 443dc7e38acSHans Petter Selasky 444dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_HCA_VPORT_GID: 445dc7e38acSHans Petter Selasky return "QUERY_HCA_VPORT_GID"; 446dc7e38acSHans Petter Selasky 447dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_HCA_VPORT_PKEY: 448dc7e38acSHans Petter Selasky return "QUERY_HCA_VPORT_PKEY"; 449dc7e38acSHans Petter Selasky 450dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_VPORT_COUNTER: 451dc7e38acSHans Petter Selasky return "QUERY_VPORT_COUNTER"; 452dc7e38acSHans Petter Selasky 453dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SET_WOL_ROL: 454dc7e38acSHans Petter Selasky return "SET_WOL_ROL"; 455dc7e38acSHans Petter Selasky 456dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_WOL_ROL: 457dc7e38acSHans Petter Selasky return "QUERY_WOL_ROL"; 458dc7e38acSHans Petter Selasky 459dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ALLOC_Q_COUNTER: 460dc7e38acSHans Petter Selasky return "ALLOC_Q_COUNTER"; 461dc7e38acSHans Petter Selasky 462dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DEALLOC_Q_COUNTER: 463dc7e38acSHans Petter Selasky return "DEALLOC_Q_COUNTER"; 464dc7e38acSHans Petter Selasky 465dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_Q_COUNTER: 466dc7e38acSHans Petter Selasky return "QUERY_Q_COUNTER"; 467dc7e38acSHans Petter Selasky 468dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ALLOC_PD: 469dc7e38acSHans Petter Selasky return "ALLOC_PD"; 470dc7e38acSHans Petter Selasky 471dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DEALLOC_PD: 472dc7e38acSHans Petter Selasky return "DEALLOC_PD"; 473dc7e38acSHans Petter Selasky 474dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ALLOC_UAR: 475dc7e38acSHans Petter Selasky return "ALLOC_UAR"; 476dc7e38acSHans Petter Selasky 477dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DEALLOC_UAR: 478dc7e38acSHans Petter Selasky return "DEALLOC_UAR"; 479dc7e38acSHans Petter Selasky 480dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CONFIG_INT_MODERATION: 481dc7e38acSHans Petter Selasky return "CONFIG_INT_MODERATION"; 482dc7e38acSHans Petter Selasky 483dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ATTACH_TO_MCG: 484dc7e38acSHans Petter Selasky return "ATTACH_TO_MCG"; 485dc7e38acSHans Petter Selasky 486dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DETACH_FROM_MCG: 487dc7e38acSHans Petter Selasky return "DETACH_FROM_MCG"; 488dc7e38acSHans Petter Selasky 489dc7e38acSHans Petter Selasky case MLX5_CMD_OP_GET_DROPPED_PACKET_LOG: 490dc7e38acSHans Petter Selasky return "GET_DROPPED_PACKET_LOG"; 491dc7e38acSHans Petter Selasky 492dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_MAD_DEMUX: 493dc7e38acSHans Petter Selasky return "QUERY_MAD_DEMUX"; 494dc7e38acSHans Petter Selasky 495dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SET_MAD_DEMUX: 496dc7e38acSHans Petter Selasky return "SET_MAD_DEMUX"; 497dc7e38acSHans Petter Selasky 498dc7e38acSHans Petter Selasky case MLX5_CMD_OP_NOP: 499dc7e38acSHans Petter Selasky return "NOP"; 500dc7e38acSHans Petter Selasky 501dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ALLOC_XRCD: 502dc7e38acSHans Petter Selasky return "ALLOC_XRCD"; 503dc7e38acSHans Petter Selasky 504dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DEALLOC_XRCD: 505dc7e38acSHans Petter Selasky return "DEALLOC_XRCD"; 506dc7e38acSHans Petter Selasky 507dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN: 508dc7e38acSHans Petter Selasky return "ALLOC_TRANSPORT_DOMAIN"; 509dc7e38acSHans Petter Selasky 510dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN: 511dc7e38acSHans Petter Selasky return "DEALLOC_TRANSPORT_DOMAIN"; 512dc7e38acSHans Petter Selasky 513dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_CONG_STATUS: 514dc7e38acSHans Petter Selasky return "QUERY_CONG_STATUS"; 515dc7e38acSHans Petter Selasky 516dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_CONG_STATUS: 517dc7e38acSHans Petter Selasky return "MODIFY_CONG_STATUS"; 518dc7e38acSHans Petter Selasky 519dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_CONG_PARAMS: 520dc7e38acSHans Petter Selasky return "QUERY_CONG_PARAMS"; 521dc7e38acSHans Petter Selasky 522dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_CONG_PARAMS: 523dc7e38acSHans Petter Selasky return "MODIFY_CONG_PARAMS"; 524dc7e38acSHans Petter Selasky 525dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_CONG_STATISTICS: 526dc7e38acSHans Petter Selasky return "QUERY_CONG_STATISTICS"; 527dc7e38acSHans Petter Selasky 528dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: 529dc7e38acSHans Petter Selasky return "ADD_VXLAN_UDP_DPORT"; 530dc7e38acSHans Petter Selasky 531dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT: 532dc7e38acSHans Petter Selasky return "DELETE_VXLAN_UDP_DPORT"; 533dc7e38acSHans Petter Selasky 534dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: 535dc7e38acSHans Petter Selasky return "SET_L2_TABLE_ENTRY"; 536dc7e38acSHans Petter Selasky 537dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY: 538dc7e38acSHans Petter Selasky return "QUERY_L2_TABLE_ENTRY"; 539dc7e38acSHans Petter Selasky 540dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY: 541dc7e38acSHans Petter Selasky return "DELETE_L2_TABLE_ENTRY"; 542dc7e38acSHans Petter Selasky 543dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_RMP: 544dc7e38acSHans Petter Selasky return "CREATE_RMP"; 545dc7e38acSHans Petter Selasky 546dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_RMP: 547dc7e38acSHans Petter Selasky return "MODIFY_RMP"; 548dc7e38acSHans Petter Selasky 549dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_RMP: 550dc7e38acSHans Petter Selasky return "DESTROY_RMP"; 551dc7e38acSHans Petter Selasky 552dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_RMP: 553dc7e38acSHans Petter Selasky return "QUERY_RMP"; 554dc7e38acSHans Petter Selasky 555dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_RQT: 556dc7e38acSHans Petter Selasky return "CREATE_RQT"; 557dc7e38acSHans Petter Selasky 558dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_RQT: 559dc7e38acSHans Petter Selasky return "MODIFY_RQT"; 560dc7e38acSHans Petter Selasky 561dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_RQT: 562dc7e38acSHans Petter Selasky return "DESTROY_RQT"; 563dc7e38acSHans Petter Selasky 564dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_RQT: 565dc7e38acSHans Petter Selasky return "QUERY_RQT"; 566dc7e38acSHans Petter Selasky 567dc7e38acSHans Petter Selasky case MLX5_CMD_OP_ACCESS_REG: 568dc7e38acSHans Petter Selasky return "MLX5_CMD_OP_ACCESS_REG"; 569dc7e38acSHans Petter Selasky 570dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_SQ: 571dc7e38acSHans Petter Selasky return "CREATE_SQ"; 572dc7e38acSHans Petter Selasky 573dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_SQ: 574dc7e38acSHans Petter Selasky return "MODIFY_SQ"; 575dc7e38acSHans Petter Selasky 576dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_SQ: 577dc7e38acSHans Petter Selasky return "DESTROY_SQ"; 578dc7e38acSHans Petter Selasky 579dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_SQ: 580dc7e38acSHans Petter Selasky return "QUERY_SQ"; 581dc7e38acSHans Petter Selasky 582dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_RQ: 583dc7e38acSHans Petter Selasky return "CREATE_RQ"; 584dc7e38acSHans Petter Selasky 585dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_RQ: 586dc7e38acSHans Petter Selasky return "MODIFY_RQ"; 587dc7e38acSHans Petter Selasky 588dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_RQ: 589dc7e38acSHans Petter Selasky return "DESTROY_RQ"; 590dc7e38acSHans Petter Selasky 591dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_RQ: 592dc7e38acSHans Petter Selasky return "QUERY_RQ"; 593dc7e38acSHans Petter Selasky 594dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_TIR: 595dc7e38acSHans Petter Selasky return "CREATE_TIR"; 596dc7e38acSHans Petter Selasky 597dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_TIR: 598dc7e38acSHans Petter Selasky return "MODIFY_TIR"; 599dc7e38acSHans Petter Selasky 600dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_TIR: 601dc7e38acSHans Petter Selasky return "DESTROY_TIR"; 602dc7e38acSHans Petter Selasky 603dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_TIR: 604dc7e38acSHans Petter Selasky return "QUERY_TIR"; 605dc7e38acSHans Petter Selasky 606dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_TIS: 607dc7e38acSHans Petter Selasky return "CREATE_TIS"; 608dc7e38acSHans Petter Selasky 609dc7e38acSHans Petter Selasky case MLX5_CMD_OP_MODIFY_TIS: 610dc7e38acSHans Petter Selasky return "MODIFY_TIS"; 611dc7e38acSHans Petter Selasky 612dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_TIS: 613dc7e38acSHans Petter Selasky return "DESTROY_TIS"; 614dc7e38acSHans Petter Selasky 615dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_TIS: 616dc7e38acSHans Petter Selasky return "QUERY_TIS"; 617dc7e38acSHans Petter Selasky 618dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_FLOW_TABLE: 619dc7e38acSHans Petter Selasky return "CREATE_FLOW_TABLE"; 620dc7e38acSHans Petter Selasky 621dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_FLOW_TABLE: 622dc7e38acSHans Petter Selasky return "DESTROY_FLOW_TABLE"; 623dc7e38acSHans Petter Selasky 624dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_FLOW_TABLE: 625dc7e38acSHans Petter Selasky return "QUERY_FLOW_TABLE"; 626dc7e38acSHans Petter Selasky 627dc7e38acSHans Petter Selasky case MLX5_CMD_OP_CREATE_FLOW_GROUP: 628dc7e38acSHans Petter Selasky return "CREATE_FLOW_GROUP"; 629dc7e38acSHans Petter Selasky 630dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DESTROY_FLOW_GROUP: 631dc7e38acSHans Petter Selasky return "DESTROY_FLOW_GROUP"; 632dc7e38acSHans Petter Selasky 633dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_FLOW_GROUP: 634dc7e38acSHans Petter Selasky return "QUERY_FLOW_GROUP"; 635dc7e38acSHans Petter Selasky 636dc7e38acSHans Petter Selasky case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: 637dc7e38acSHans Petter Selasky return "SET_FLOW_TABLE_ENTRY"; 638dc7e38acSHans Petter Selasky 639dc7e38acSHans Petter Selasky case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY: 640dc7e38acSHans Petter Selasky return "QUERY_FLOW_TABLE_ENTRY"; 641dc7e38acSHans Petter Selasky 642dc7e38acSHans Petter Selasky case MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY: 643dc7e38acSHans Petter Selasky return "DELETE_FLOW_TABLE_ENTRY"; 644dc7e38acSHans Petter Selasky 645cb4e4a6eSHans Petter Selasky case MLX5_CMD_OP_SET_DIAGNOSTICS: 646cb4e4a6eSHans Petter Selasky return "MLX5_CMD_OP_SET_DIAGNOSTICS"; 647cb4e4a6eSHans Petter Selasky 648cb4e4a6eSHans Petter Selasky case MLX5_CMD_OP_QUERY_DIAGNOSTICS: 649cb4e4a6eSHans Petter Selasky return "MLX5_CMD_OP_QUERY_DIAGNOSTICS"; 650cb4e4a6eSHans Petter Selasky 651dc7e38acSHans Petter Selasky default: return "unknown command opcode"; 652dc7e38acSHans Petter Selasky } 653dc7e38acSHans Petter Selasky } 654dc7e38acSHans Petter Selasky 655dc7e38acSHans Petter Selasky static void dump_command(struct mlx5_core_dev *dev, 656dc7e38acSHans Petter Selasky struct mlx5_cmd_work_ent *ent, int input) 657dc7e38acSHans Petter Selasky { 658dc7e38acSHans Petter Selasky u16 op = be16_to_cpu(((struct mlx5_inbox_hdr *)(ent->lay->in))->opcode); 659dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *msg = input ? ent->in : ent->out; 660dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *next = msg->next; 661dc7e38acSHans Petter Selasky int data_only; 662dc7e38acSHans Petter Selasky u32 offset = 0; 663dc7e38acSHans Petter Selasky int dump_len; 664dc7e38acSHans Petter Selasky 665dc7e38acSHans Petter Selasky data_only = !!(mlx5_core_debug_mask & (1 << MLX5_CMD_DATA)); 666dc7e38acSHans Petter Selasky 667dc7e38acSHans Petter Selasky if (data_only) 668dc7e38acSHans Petter Selasky mlx5_core_dbg_mask(dev, 1 << MLX5_CMD_DATA, 669dc7e38acSHans Petter Selasky "dump command data %s(0x%x) %s\n", 670dc7e38acSHans Petter Selasky mlx5_command_str(op), op, 671dc7e38acSHans Petter Selasky input ? "INPUT" : "OUTPUT"); 672dc7e38acSHans Petter Selasky else 673dc7e38acSHans Petter Selasky mlx5_core_dbg(dev, "dump command %s(0x%x) %s\n", 674dc7e38acSHans Petter Selasky mlx5_command_str(op), op, 675dc7e38acSHans Petter Selasky input ? "INPUT" : "OUTPUT"); 676dc7e38acSHans Petter Selasky 677dc7e38acSHans Petter Selasky if (data_only) { 678dc7e38acSHans Petter Selasky if (input) { 679dc7e38acSHans Petter Selasky dump_buf(ent->lay->in, sizeof(ent->lay->in), 1, offset); 680dc7e38acSHans Petter Selasky offset += sizeof(ent->lay->in); 681dc7e38acSHans Petter Selasky } else { 682dc7e38acSHans Petter Selasky dump_buf(ent->lay->out, sizeof(ent->lay->out), 1, offset); 683dc7e38acSHans Petter Selasky offset += sizeof(ent->lay->out); 684dc7e38acSHans Petter Selasky } 685dc7e38acSHans Petter Selasky } else { 686dc7e38acSHans Petter Selasky dump_buf(ent->lay, sizeof(*ent->lay), 0, offset); 687dc7e38acSHans Petter Selasky offset += sizeof(*ent->lay); 688dc7e38acSHans Petter Selasky } 689dc7e38acSHans Petter Selasky 690dc7e38acSHans Petter Selasky while (next && offset < msg->len) { 691dc7e38acSHans Petter Selasky if (data_only) { 692dc7e38acSHans Petter Selasky dump_len = min_t(int, MLX5_CMD_DATA_BLOCK_SIZE, msg->len - offset); 693dc7e38acSHans Petter Selasky dump_buf(next->buf, dump_len, 1, offset); 694dc7e38acSHans Petter Selasky offset += MLX5_CMD_DATA_BLOCK_SIZE; 695dc7e38acSHans Petter Selasky } else { 696dc7e38acSHans Petter Selasky mlx5_core_dbg(dev, "command block:\n"); 697dc7e38acSHans Petter Selasky dump_buf(next->buf, sizeof(struct mlx5_cmd_prot_block), 0, offset); 698dc7e38acSHans Petter Selasky offset += sizeof(struct mlx5_cmd_prot_block); 699dc7e38acSHans Petter Selasky } 700dc7e38acSHans Petter Selasky next = next->next; 701dc7e38acSHans Petter Selasky } 702dc7e38acSHans Petter Selasky 703dc7e38acSHans Petter Selasky if (data_only) 704dc7e38acSHans Petter Selasky pr_debug("\n"); 705dc7e38acSHans Petter Selasky } 706dc7e38acSHans Petter Selasky 707dc7e38acSHans Petter Selasky static void cmd_work_handler(struct work_struct *work) 708dc7e38acSHans Petter Selasky { 709dc7e38acSHans Petter Selasky struct mlx5_cmd_work_ent *ent = container_of(work, struct mlx5_cmd_work_ent, work); 710dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = ent->cmd; 711dc7e38acSHans Petter Selasky struct mlx5_core_dev *dev = container_of(cmd, struct mlx5_core_dev, cmd); 712dc7e38acSHans Petter Selasky struct mlx5_cmd_layout *lay; 713dc7e38acSHans Petter Selasky struct semaphore *sem; 714dc7e38acSHans Petter Selasky 715dc7e38acSHans Petter Selasky sem = ent->page_queue ? &cmd->pages_sem : &cmd->sem; 716dc7e38acSHans Petter Selasky if (cmd->moving_to_polling) { 717dc7e38acSHans Petter Selasky mlx5_core_warn(dev, "not expecting command execution, ignoring...\n"); 718dc7e38acSHans Petter Selasky return; 719dc7e38acSHans Petter Selasky } 720dc7e38acSHans Petter Selasky 721dc7e38acSHans Petter Selasky down(sem); 722dc7e38acSHans Petter Selasky if (!ent->page_queue) { 723dc7e38acSHans Petter Selasky ent->idx = alloc_ent(cmd); 724dc7e38acSHans Petter Selasky if (ent->idx < 0) { 725dc7e38acSHans Petter Selasky mlx5_core_err(dev, "failed to allocate command entry\n"); 726dc7e38acSHans Petter Selasky up(sem); 727dc7e38acSHans Petter Selasky return; 728dc7e38acSHans Petter Selasky } 729dc7e38acSHans Petter Selasky } else { 730dc7e38acSHans Petter Selasky ent->idx = cmd->max_reg_cmds; 731dc7e38acSHans Petter Selasky } 732dc7e38acSHans Petter Selasky 733dc7e38acSHans Petter Selasky ent->token = alloc_token(cmd); 734dc7e38acSHans Petter Selasky cmd->ent_arr[ent->idx] = ent; 735dc7e38acSHans Petter Selasky lay = get_inst(cmd, ent->idx); 736dc7e38acSHans Petter Selasky ent->lay = lay; 737dc7e38acSHans Petter Selasky memset(lay, 0, sizeof(*lay)); 738dc7e38acSHans Petter Selasky memcpy(lay->in, ent->in->first.data, sizeof(lay->in)); 739dc7e38acSHans Petter Selasky ent->op = be32_to_cpu(lay->in[0]) >> 16; 740dc7e38acSHans Petter Selasky if (ent->in->next) 741dc7e38acSHans Petter Selasky lay->in_ptr = cpu_to_be64(ent->in->next->dma); 742dc7e38acSHans Petter Selasky lay->inlen = cpu_to_be32(ent->in->len); 743dc7e38acSHans Petter Selasky if (ent->out->next) 744dc7e38acSHans Petter Selasky lay->out_ptr = cpu_to_be64(ent->out->next->dma); 745dc7e38acSHans Petter Selasky lay->outlen = cpu_to_be32(ent->out->len); 746dc7e38acSHans Petter Selasky lay->type = MLX5_PCI_CMD_XPORT; 747dc7e38acSHans Petter Selasky lay->token = ent->token; 748dc7e38acSHans Petter Selasky lay->status_own = CMD_OWNER_HW; 749dc7e38acSHans Petter Selasky set_signature(ent, !cmd->checksum_disabled); 750dc7e38acSHans Petter Selasky dump_command(dev, ent, 1); 751dc7e38acSHans Petter Selasky ent->ts1 = ktime_get_ns(); 752dc7e38acSHans Petter Selasky 753dc7e38acSHans Petter Selasky /* ring doorbell after the descriptor is valid */ 754dc7e38acSHans Petter Selasky mlx5_core_dbg(dev, "writing 0x%x to command doorbell\n", 1 << ent->idx); 755dc7e38acSHans Petter Selasky wmb(); 756dc7e38acSHans Petter Selasky iowrite32be(1 << ent->idx, &dev->iseg->cmd_dbell); 757dc7e38acSHans Petter Selasky mmiowb(); 758dc7e38acSHans Petter Selasky /* if not in polling don't use ent after this point*/ 759dc7e38acSHans Petter Selasky if (cmd->mode == CMD_MODE_POLLING) { 760dc7e38acSHans Petter Selasky poll_timeout(ent); 761dc7e38acSHans Petter Selasky /* make sure we read the descriptor after ownership is SW */ 762dc7e38acSHans Petter Selasky rmb(); 763dc7e38acSHans Petter Selasky mlx5_cmd_comp_handler(dev, 1UL << ent->idx); 764dc7e38acSHans Petter Selasky } 765dc7e38acSHans Petter Selasky } 766dc7e38acSHans Petter Selasky 767dc7e38acSHans Petter Selasky static const char *deliv_status_to_str(u8 status) 768dc7e38acSHans Petter Selasky { 769dc7e38acSHans Petter Selasky switch (status) { 770dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_OK: 771dc7e38acSHans Petter Selasky return "no errors"; 772dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_SIGNAT_ERR: 773dc7e38acSHans Petter Selasky return "signature error"; 774dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_TOK_ERR: 775dc7e38acSHans Petter Selasky return "token error"; 776dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_BAD_BLK_NUM_ERR: 777dc7e38acSHans Petter Selasky return "bad block number"; 778dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_OUT_PTR_ALIGN_ERR: 779dc7e38acSHans Petter Selasky return "output pointer not aligned to block size"; 780dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_IN_PTR_ALIGN_ERR: 781dc7e38acSHans Petter Selasky return "input pointer not aligned to block size"; 782dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_FW_ERR: 783dc7e38acSHans Petter Selasky return "firmware internal error"; 784dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_IN_LENGTH_ERR: 785dc7e38acSHans Petter Selasky return "command input length error"; 786dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_OUT_LENGTH_ERR: 787dc7e38acSHans Petter Selasky return "command ouput length error"; 788dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_RES_FLD_NOT_CLR_ERR: 789dc7e38acSHans Petter Selasky return "reserved fields not cleared"; 790dc7e38acSHans Petter Selasky case MLX5_CMD_DELIVERY_STAT_CMD_DESCR_ERR: 791dc7e38acSHans Petter Selasky return "bad command descriptor type"; 792dc7e38acSHans Petter Selasky default: 793dc7e38acSHans Petter Selasky return "unknown status code"; 794dc7e38acSHans Petter Selasky } 795dc7e38acSHans Petter Selasky } 796dc7e38acSHans Petter Selasky 797dc7e38acSHans Petter Selasky static u16 msg_to_opcode(struct mlx5_cmd_msg *in) 798dc7e38acSHans Petter Selasky { 799dc7e38acSHans Petter Selasky struct mlx5_inbox_hdr *hdr = (struct mlx5_inbox_hdr *)(in->first.data); 800dc7e38acSHans Petter Selasky 801dc7e38acSHans Petter Selasky return be16_to_cpu(hdr->opcode); 802dc7e38acSHans Petter Selasky } 803dc7e38acSHans Petter Selasky 804dc7e38acSHans Petter Selasky static int wait_func(struct mlx5_core_dev *dev, struct mlx5_cmd_work_ent *ent) 805dc7e38acSHans Petter Selasky { 806dc7e38acSHans Petter Selasky int timeout = msecs_to_jiffies(MLX5_CMD_TIMEOUT_MSEC); 807dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 808dc7e38acSHans Petter Selasky int err; 809dc7e38acSHans Petter Selasky 810dc7e38acSHans Petter Selasky if (cmd->mode == CMD_MODE_POLLING) { 811dc7e38acSHans Petter Selasky wait_for_completion(&ent->done); 812dc7e38acSHans Petter Selasky err = ent->ret; 813dc7e38acSHans Petter Selasky } else { 814dc7e38acSHans Petter Selasky if (!wait_for_completion_timeout(&ent->done, timeout)) 815dc7e38acSHans Petter Selasky err = -ETIMEDOUT; 816dc7e38acSHans Petter Selasky else 817dc7e38acSHans Petter Selasky err = 0; 818dc7e38acSHans Petter Selasky } 819dc7e38acSHans Petter Selasky if (err == -ETIMEDOUT) { 820dc7e38acSHans Petter Selasky mlx5_core_warn(dev, "%s(0x%x) timeout. Will cause a leak of a command resource\n", 821dc7e38acSHans Petter Selasky mlx5_command_str(msg_to_opcode(ent->in)), 822dc7e38acSHans Petter Selasky msg_to_opcode(ent->in)); 823dc7e38acSHans Petter Selasky } 824dc7e38acSHans Petter Selasky mlx5_core_dbg(dev, "err %d, delivery status %s(%d)\n", 825dc7e38acSHans Petter Selasky err, deliv_status_to_str(ent->status), ent->status); 826dc7e38acSHans Petter Selasky 827dc7e38acSHans Petter Selasky return err; 828dc7e38acSHans Petter Selasky } 829dc7e38acSHans Petter Selasky 830dc7e38acSHans Petter Selasky /* Notes: 831dc7e38acSHans Petter Selasky * 1. Callback functions may not sleep 832dc7e38acSHans Petter Selasky * 2. page queue commands do not support asynchrous completion 833dc7e38acSHans Petter Selasky */ 834dc7e38acSHans Petter Selasky static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in, 835dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *out, void *uout, int uout_size, 836dc7e38acSHans Petter Selasky mlx5_cmd_cbk_t callback, 837dc7e38acSHans Petter Selasky void *context, int page_queue, u8 *status) 838dc7e38acSHans Petter Selasky { 839dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 840dc7e38acSHans Petter Selasky struct mlx5_cmd_work_ent *ent; 841dc7e38acSHans Petter Selasky struct mlx5_cmd_stats *stats; 842dc7e38acSHans Petter Selasky int err = 0; 843dc7e38acSHans Petter Selasky s64 ds; 844dc7e38acSHans Petter Selasky u16 op; 845dc7e38acSHans Petter Selasky 846dc7e38acSHans Petter Selasky if (callback && page_queue) 847dc7e38acSHans Petter Selasky return -EINVAL; 848dc7e38acSHans Petter Selasky 849dc7e38acSHans Petter Selasky ent = alloc_cmd(cmd, in, out, uout, uout_size, callback, context, 850dc7e38acSHans Petter Selasky page_queue); 851dc7e38acSHans Petter Selasky if (IS_ERR(ent)) 852dc7e38acSHans Petter Selasky return PTR_ERR(ent); 853dc7e38acSHans Petter Selasky 854dc7e38acSHans Petter Selasky if (!callback) 855dc7e38acSHans Petter Selasky init_completion(&ent->done); 856dc7e38acSHans Petter Selasky 857dc7e38acSHans Petter Selasky INIT_WORK(&ent->work, cmd_work_handler); 858dc7e38acSHans Petter Selasky if (page_queue) { 859dc7e38acSHans Petter Selasky cmd_work_handler(&ent->work); 860dc7e38acSHans Petter Selasky } else if (!queue_work(cmd->wq, &ent->work)) { 861dc7e38acSHans Petter Selasky mlx5_core_warn(dev, "failed to queue work\n"); 862dc7e38acSHans Petter Selasky err = -ENOMEM; 863dc7e38acSHans Petter Selasky goto out_free; 864dc7e38acSHans Petter Selasky } 865dc7e38acSHans Petter Selasky 866dc7e38acSHans Petter Selasky if (!callback) { 867dc7e38acSHans Petter Selasky err = wait_func(dev, ent); 868dc7e38acSHans Petter Selasky if (err == -ETIMEDOUT) 869dc7e38acSHans Petter Selasky goto out; 870dc7e38acSHans Petter Selasky 871dc7e38acSHans Petter Selasky ds = ent->ts2 - ent->ts1; 872dc7e38acSHans Petter Selasky op = be16_to_cpu(((struct mlx5_inbox_hdr *)in->first.data)->opcode); 873dc7e38acSHans Petter Selasky if (op < ARRAY_SIZE(cmd->stats)) { 874dc7e38acSHans Petter Selasky stats = &cmd->stats[op]; 875dc7e38acSHans Petter Selasky spin_lock_irq(&stats->lock); 876dc7e38acSHans Petter Selasky stats->sum += ds; 877dc7e38acSHans Petter Selasky ++stats->n; 878dc7e38acSHans Petter Selasky spin_unlock_irq(&stats->lock); 879dc7e38acSHans Petter Selasky } 880dc7e38acSHans Petter Selasky mlx5_core_dbg_mask(dev, 1 << MLX5_CMD_TIME, 881dc7e38acSHans Petter Selasky "fw exec time for %s is %lld nsec\n", 882dc7e38acSHans Petter Selasky mlx5_command_str(op), (long long)ds); 883dc7e38acSHans Petter Selasky *status = ent->status; 884dc7e38acSHans Petter Selasky free_cmd(ent); 885dc7e38acSHans Petter Selasky } 886dc7e38acSHans Petter Selasky 887dc7e38acSHans Petter Selasky return err; 888dc7e38acSHans Petter Selasky 889dc7e38acSHans Petter Selasky out_free: 890dc7e38acSHans Petter Selasky free_cmd(ent); 891dc7e38acSHans Petter Selasky out: 892dc7e38acSHans Petter Selasky return err; 893dc7e38acSHans Petter Selasky } 894dc7e38acSHans Petter Selasky 895dc7e38acSHans Petter Selasky static int mlx5_copy_to_msg(struct mlx5_cmd_msg *to, void *from, int size) 896dc7e38acSHans Petter Selasky { 897dc7e38acSHans Petter Selasky struct mlx5_cmd_prot_block *block; 898dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *next; 899dc7e38acSHans Petter Selasky int copy; 900dc7e38acSHans Petter Selasky 901dc7e38acSHans Petter Selasky if (!to || !from) 902dc7e38acSHans Petter Selasky return -ENOMEM; 903dc7e38acSHans Petter Selasky 904dc7e38acSHans Petter Selasky copy = min_t(int, size, sizeof(to->first.data)); 905dc7e38acSHans Petter Selasky memcpy(to->first.data, from, copy); 906dc7e38acSHans Petter Selasky size -= copy; 907dc7e38acSHans Petter Selasky from += copy; 908dc7e38acSHans Petter Selasky 909dc7e38acSHans Petter Selasky next = to->next; 910dc7e38acSHans Petter Selasky while (size) { 911dc7e38acSHans Petter Selasky if (!next) { 912dc7e38acSHans Petter Selasky /* this is a BUG */ 913dc7e38acSHans Petter Selasky return -ENOMEM; 914dc7e38acSHans Petter Selasky } 915dc7e38acSHans Petter Selasky 916dc7e38acSHans Petter Selasky copy = min_t(int, size, MLX5_CMD_DATA_BLOCK_SIZE); 917dc7e38acSHans Petter Selasky block = next->buf; 918dc7e38acSHans Petter Selasky memcpy(block->data, from, copy); 919dc7e38acSHans Petter Selasky from += copy; 920dc7e38acSHans Petter Selasky size -= copy; 921dc7e38acSHans Petter Selasky next = next->next; 922dc7e38acSHans Petter Selasky } 923dc7e38acSHans Petter Selasky 924dc7e38acSHans Petter Selasky return 0; 925dc7e38acSHans Petter Selasky } 926dc7e38acSHans Petter Selasky 927dc7e38acSHans Petter Selasky static int mlx5_copy_from_msg(void *to, struct mlx5_cmd_msg *from, int size) 928dc7e38acSHans Petter Selasky { 929dc7e38acSHans Petter Selasky struct mlx5_cmd_prot_block *block; 930dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *next; 931dc7e38acSHans Petter Selasky int copy; 932dc7e38acSHans Petter Selasky 933dc7e38acSHans Petter Selasky if (!to || !from) 934dc7e38acSHans Petter Selasky return -ENOMEM; 935dc7e38acSHans Petter Selasky 936dc7e38acSHans Petter Selasky copy = min_t(int, size, sizeof(from->first.data)); 937dc7e38acSHans Petter Selasky memcpy(to, from->first.data, copy); 938dc7e38acSHans Petter Selasky size -= copy; 939dc7e38acSHans Petter Selasky to += copy; 940dc7e38acSHans Petter Selasky 941dc7e38acSHans Petter Selasky next = from->next; 942dc7e38acSHans Petter Selasky while (size) { 943dc7e38acSHans Petter Selasky if (!next) { 944dc7e38acSHans Petter Selasky /* this is a BUG */ 945dc7e38acSHans Petter Selasky return -ENOMEM; 946dc7e38acSHans Petter Selasky } 947dc7e38acSHans Petter Selasky 948dc7e38acSHans Petter Selasky copy = min_t(int, size, MLX5_CMD_DATA_BLOCK_SIZE); 949dc7e38acSHans Petter Selasky block = next->buf; 950dc7e38acSHans Petter Selasky 951dc7e38acSHans Petter Selasky memcpy(to, block->data, copy); 952dc7e38acSHans Petter Selasky to += copy; 953dc7e38acSHans Petter Selasky size -= copy; 954dc7e38acSHans Petter Selasky next = next->next; 955dc7e38acSHans Petter Selasky } 956dc7e38acSHans Petter Selasky 957dc7e38acSHans Petter Selasky return 0; 958dc7e38acSHans Petter Selasky } 959dc7e38acSHans Petter Selasky 960dc7e38acSHans Petter Selasky static struct mlx5_cmd_mailbox *alloc_cmd_box(struct mlx5_core_dev *dev, 961dc7e38acSHans Petter Selasky gfp_t flags) 962dc7e38acSHans Petter Selasky { 963dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *mailbox; 964dc7e38acSHans Petter Selasky 965dc7e38acSHans Petter Selasky mailbox = kmalloc(sizeof(*mailbox), flags); 966dc7e38acSHans Petter Selasky if (!mailbox) 967dc7e38acSHans Petter Selasky return ERR_PTR(-ENOMEM); 968dc7e38acSHans Petter Selasky 969dc7e38acSHans Petter Selasky mailbox->buf = pci_pool_alloc(dev->cmd.pool, flags, 970dc7e38acSHans Petter Selasky &mailbox->dma); 971dc7e38acSHans Petter Selasky if (!mailbox->buf) { 972dc7e38acSHans Petter Selasky mlx5_core_dbg(dev, "failed allocation\n"); 973dc7e38acSHans Petter Selasky kfree(mailbox); 974dc7e38acSHans Petter Selasky return ERR_PTR(-ENOMEM); 975dc7e38acSHans Petter Selasky } 976dc7e38acSHans Petter Selasky memset(mailbox->buf, 0, sizeof(struct mlx5_cmd_prot_block)); 977dc7e38acSHans Petter Selasky mailbox->next = NULL; 978dc7e38acSHans Petter Selasky 979dc7e38acSHans Petter Selasky return mailbox; 980dc7e38acSHans Petter Selasky } 981dc7e38acSHans Petter Selasky 982dc7e38acSHans Petter Selasky static void free_cmd_box(struct mlx5_core_dev *dev, 983dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *mailbox) 984dc7e38acSHans Petter Selasky { 985dc7e38acSHans Petter Selasky pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma); 986dc7e38acSHans Petter Selasky kfree(mailbox); 987dc7e38acSHans Petter Selasky } 988dc7e38acSHans Petter Selasky 989dc7e38acSHans Petter Selasky static struct mlx5_cmd_msg *mlx5_alloc_cmd_msg(struct mlx5_core_dev *dev, 990dc7e38acSHans Petter Selasky gfp_t flags, int size) 991dc7e38acSHans Petter Selasky { 992dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *tmp, *head = NULL; 993dc7e38acSHans Petter Selasky struct mlx5_cmd_prot_block *block; 994dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *msg; 995dc7e38acSHans Petter Selasky int blen; 996dc7e38acSHans Petter Selasky int err; 997dc7e38acSHans Petter Selasky int n; 998dc7e38acSHans Petter Selasky int i; 999dc7e38acSHans Petter Selasky 1000dc7e38acSHans Petter Selasky msg = kzalloc(sizeof(*msg), flags); 1001dc7e38acSHans Petter Selasky if (!msg) 1002dc7e38acSHans Petter Selasky return ERR_PTR(-ENOMEM); 1003dc7e38acSHans Petter Selasky 1004dc7e38acSHans Petter Selasky blen = size - min_t(int, sizeof(msg->first.data), size); 1005dc7e38acSHans Petter Selasky n = (blen + MLX5_CMD_DATA_BLOCK_SIZE - 1) / MLX5_CMD_DATA_BLOCK_SIZE; 1006dc7e38acSHans Petter Selasky 1007dc7e38acSHans Petter Selasky for (i = 0; i < n; i++) { 1008dc7e38acSHans Petter Selasky tmp = alloc_cmd_box(dev, flags); 1009dc7e38acSHans Petter Selasky if (IS_ERR(tmp)) { 1010dc7e38acSHans Petter Selasky mlx5_core_warn(dev, "failed allocating block\n"); 1011dc7e38acSHans Petter Selasky err = PTR_ERR(tmp); 1012dc7e38acSHans Petter Selasky goto err_alloc; 1013dc7e38acSHans Petter Selasky } 1014dc7e38acSHans Petter Selasky 1015dc7e38acSHans Petter Selasky block = tmp->buf; 1016dc7e38acSHans Petter Selasky tmp->next = head; 1017dc7e38acSHans Petter Selasky block->next = cpu_to_be64(tmp->next ? tmp->next->dma : 0); 1018dc7e38acSHans Petter Selasky block->block_num = cpu_to_be32(n - i - 1); 1019dc7e38acSHans Petter Selasky head = tmp; 1020dc7e38acSHans Petter Selasky } 1021dc7e38acSHans Petter Selasky msg->next = head; 1022dc7e38acSHans Petter Selasky msg->len = size; 1023dc7e38acSHans Petter Selasky return msg; 1024dc7e38acSHans Petter Selasky 1025dc7e38acSHans Petter Selasky err_alloc: 1026dc7e38acSHans Petter Selasky while (head) { 1027dc7e38acSHans Petter Selasky tmp = head->next; 1028dc7e38acSHans Petter Selasky free_cmd_box(dev, head); 1029dc7e38acSHans Petter Selasky head = tmp; 1030dc7e38acSHans Petter Selasky } 1031dc7e38acSHans Petter Selasky kfree(msg); 1032dc7e38acSHans Petter Selasky 1033dc7e38acSHans Petter Selasky return ERR_PTR(err); 1034dc7e38acSHans Petter Selasky } 1035dc7e38acSHans Petter Selasky 1036dc7e38acSHans Petter Selasky static void mlx5_free_cmd_msg(struct mlx5_core_dev *dev, 1037dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *msg) 1038dc7e38acSHans Petter Selasky { 1039dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *head = msg->next; 1040dc7e38acSHans Petter Selasky struct mlx5_cmd_mailbox *next; 1041dc7e38acSHans Petter Selasky 1042dc7e38acSHans Petter Selasky while (head) { 1043dc7e38acSHans Petter Selasky next = head->next; 1044dc7e38acSHans Petter Selasky free_cmd_box(dev, head); 1045dc7e38acSHans Petter Selasky head = next; 1046dc7e38acSHans Petter Selasky } 1047dc7e38acSHans Petter Selasky kfree(msg); 1048dc7e38acSHans Petter Selasky } 1049dc7e38acSHans Petter Selasky 1050dc7e38acSHans Petter Selasky static void set_wqname(struct mlx5_core_dev *dev) 1051dc7e38acSHans Petter Selasky { 1052dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1053dc7e38acSHans Petter Selasky 1054dc7e38acSHans Petter Selasky snprintf(cmd->wq_name, sizeof(cmd->wq_name), "mlx5_cmd_%s", 1055dc7e38acSHans Petter Selasky dev_name(&dev->pdev->dev)); 1056dc7e38acSHans Petter Selasky } 1057dc7e38acSHans Petter Selasky 1058dc7e38acSHans Petter Selasky static void clean_debug_files(struct mlx5_core_dev *dev) 1059dc7e38acSHans Petter Selasky { 1060dc7e38acSHans Petter Selasky } 1061dc7e38acSHans Petter Selasky 1062dc7e38acSHans Petter Selasky 1063dc7e38acSHans Petter Selasky void mlx5_cmd_use_events(struct mlx5_core_dev *dev) 1064dc7e38acSHans Petter Selasky { 1065dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1066dc7e38acSHans Petter Selasky int i; 1067dc7e38acSHans Petter Selasky 1068dc7e38acSHans Petter Selasky for (i = 0; i < cmd->max_reg_cmds; i++) 1069dc7e38acSHans Petter Selasky down(&cmd->sem); 1070dc7e38acSHans Petter Selasky 1071dc7e38acSHans Petter Selasky down(&cmd->pages_sem); 1072dc7e38acSHans Petter Selasky 1073dc7e38acSHans Petter Selasky flush_workqueue(cmd->wq); 1074dc7e38acSHans Petter Selasky 1075dc7e38acSHans Petter Selasky cmd->mode = CMD_MODE_EVENTS; 1076dc7e38acSHans Petter Selasky 1077dc7e38acSHans Petter Selasky up(&cmd->pages_sem); 1078dc7e38acSHans Petter Selasky for (i = 0; i < cmd->max_reg_cmds; i++) 1079dc7e38acSHans Petter Selasky up(&cmd->sem); 1080dc7e38acSHans Petter Selasky } 1081dc7e38acSHans Petter Selasky 1082dc7e38acSHans Petter Selasky void mlx5_cmd_use_polling(struct mlx5_core_dev *dev) 1083dc7e38acSHans Petter Selasky { 1084dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1085dc7e38acSHans Petter Selasky 1086dc7e38acSHans Petter Selasky synchronize_irq(dev->priv.eq_table.pages_eq.irqn); 1087dc7e38acSHans Petter Selasky flush_workqueue(dev->priv.pg_wq); 1088dc7e38acSHans Petter Selasky cmd->moving_to_polling = 1; 1089dc7e38acSHans Petter Selasky flush_workqueue(cmd->wq); 1090dc7e38acSHans Petter Selasky cmd->mode = CMD_MODE_POLLING; 1091dc7e38acSHans Petter Selasky cmd->moving_to_polling = 0; 1092dc7e38acSHans Petter Selasky } 1093dc7e38acSHans Petter Selasky 1094dc7e38acSHans Petter Selasky static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg) 1095dc7e38acSHans Petter Selasky { 1096dc7e38acSHans Petter Selasky unsigned long flags; 1097dc7e38acSHans Petter Selasky 1098dc7e38acSHans Petter Selasky if (msg->cache) { 1099dc7e38acSHans Petter Selasky spin_lock_irqsave(&msg->cache->lock, flags); 1100dc7e38acSHans Petter Selasky list_add_tail(&msg->list, &msg->cache->head); 1101dc7e38acSHans Petter Selasky spin_unlock_irqrestore(&msg->cache->lock, flags); 1102dc7e38acSHans Petter Selasky } else { 1103dc7e38acSHans Petter Selasky mlx5_free_cmd_msg(dev, msg); 1104dc7e38acSHans Petter Selasky } 1105dc7e38acSHans Petter Selasky } 1106dc7e38acSHans Petter Selasky 1107dc7e38acSHans Petter Selasky void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector) 1108dc7e38acSHans Petter Selasky { 1109dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1110dc7e38acSHans Petter Selasky struct mlx5_cmd_work_ent *ent; 1111dc7e38acSHans Petter Selasky mlx5_cmd_cbk_t callback; 1112dc7e38acSHans Petter Selasky void *context; 1113dc7e38acSHans Petter Selasky int err; 1114dc7e38acSHans Petter Selasky int i; 1115dc7e38acSHans Petter Selasky s64 ds; 1116dc7e38acSHans Petter Selasky struct mlx5_cmd_stats *stats; 1117dc7e38acSHans Petter Selasky unsigned long flags; 1118dc7e38acSHans Petter Selasky 1119dc7e38acSHans Petter Selasky for (i = 0; i < (1 << cmd->log_sz); i++) { 1120dc7e38acSHans Petter Selasky if (test_bit(i, &vector)) { 1121dc7e38acSHans Petter Selasky struct semaphore *sem; 1122dc7e38acSHans Petter Selasky 1123dc7e38acSHans Petter Selasky ent = cmd->ent_arr[i]; 1124dc7e38acSHans Petter Selasky if (ent->page_queue) 1125dc7e38acSHans Petter Selasky sem = &cmd->pages_sem; 1126dc7e38acSHans Petter Selasky else 1127dc7e38acSHans Petter Selasky sem = &cmd->sem; 1128dc7e38acSHans Petter Selasky ent->ts2 = ktime_get_ns(); 1129dc7e38acSHans Petter Selasky memcpy(ent->out->first.data, ent->lay->out, sizeof(ent->lay->out)); 1130dc7e38acSHans Petter Selasky dump_command(dev, ent, 0); 1131dc7e38acSHans Petter Selasky if (!ent->ret) { 1132dc7e38acSHans Petter Selasky if (!cmd->checksum_disabled) 1133dc7e38acSHans Petter Selasky ent->ret = verify_signature(ent); 1134dc7e38acSHans Petter Selasky else 1135dc7e38acSHans Petter Selasky ent->ret = 0; 1136dc7e38acSHans Petter Selasky ent->status = ent->lay->status_own >> 1; 1137dc7e38acSHans Petter Selasky mlx5_core_dbg(dev, "command completed. ret 0x%x, delivery status %s(0x%x)\n", 1138dc7e38acSHans Petter Selasky ent->ret, deliv_status_to_str(ent->status), ent->status); 1139dc7e38acSHans Petter Selasky } 1140dc7e38acSHans Petter Selasky free_ent(cmd, ent->idx); 1141dc7e38acSHans Petter Selasky if (ent->callback) { 1142dc7e38acSHans Petter Selasky ds = ent->ts2 - ent->ts1; 1143dc7e38acSHans Petter Selasky if (ent->op < ARRAY_SIZE(cmd->stats)) { 1144dc7e38acSHans Petter Selasky stats = &cmd->stats[ent->op]; 1145dc7e38acSHans Petter Selasky spin_lock_irqsave(&stats->lock, flags); 1146dc7e38acSHans Petter Selasky stats->sum += ds; 1147dc7e38acSHans Petter Selasky ++stats->n; 1148dc7e38acSHans Petter Selasky spin_unlock_irqrestore(&stats->lock, flags); 1149dc7e38acSHans Petter Selasky } 1150dc7e38acSHans Petter Selasky 1151dc7e38acSHans Petter Selasky callback = ent->callback; 1152dc7e38acSHans Petter Selasky context = ent->context; 1153dc7e38acSHans Petter Selasky err = ent->ret; 1154dc7e38acSHans Petter Selasky if (!err) 1155dc7e38acSHans Petter Selasky err = mlx5_copy_from_msg(ent->uout, 1156dc7e38acSHans Petter Selasky ent->out, 1157dc7e38acSHans Petter Selasky ent->uout_size); 1158dc7e38acSHans Petter Selasky 1159dc7e38acSHans Petter Selasky mlx5_free_cmd_msg(dev, ent->out); 1160dc7e38acSHans Petter Selasky free_msg(dev, ent->in); 1161dc7e38acSHans Petter Selasky 1162dc7e38acSHans Petter Selasky free_cmd(ent); 1163dc7e38acSHans Petter Selasky callback(err, context); 1164dc7e38acSHans Petter Selasky } else { 1165dc7e38acSHans Petter Selasky complete(&ent->done); 1166dc7e38acSHans Petter Selasky } 1167dc7e38acSHans Petter Selasky up(sem); 1168dc7e38acSHans Petter Selasky } 1169dc7e38acSHans Petter Selasky } 1170dc7e38acSHans Petter Selasky } 1171dc7e38acSHans Petter Selasky EXPORT_SYMBOL(mlx5_cmd_comp_handler); 1172dc7e38acSHans Petter Selasky 1173dc7e38acSHans Petter Selasky static int status_to_err(u8 status) 1174dc7e38acSHans Petter Selasky { 1175dc7e38acSHans Petter Selasky return status ? -1 : 0; /* TBD more meaningful codes */ 1176dc7e38acSHans Petter Selasky } 1177dc7e38acSHans Petter Selasky 1178dc7e38acSHans Petter Selasky static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size, 1179dc7e38acSHans Petter Selasky gfp_t gfp) 1180dc7e38acSHans Petter Selasky { 1181dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *msg = ERR_PTR(-ENOMEM); 1182dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1183dc7e38acSHans Petter Selasky struct cache_ent *ent = NULL; 1184dc7e38acSHans Petter Selasky 1185dc7e38acSHans Petter Selasky if (in_size > MED_LIST_SIZE && in_size <= LONG_LIST_SIZE) 1186dc7e38acSHans Petter Selasky ent = &cmd->cache.large; 1187dc7e38acSHans Petter Selasky else if (in_size > 16 && in_size <= MED_LIST_SIZE) 1188dc7e38acSHans Petter Selasky ent = &cmd->cache.med; 1189dc7e38acSHans Petter Selasky 1190dc7e38acSHans Petter Selasky if (ent) { 1191dc7e38acSHans Petter Selasky spin_lock_irq(&ent->lock); 1192dc7e38acSHans Petter Selasky if (!list_empty(&ent->head)) { 1193dc7e38acSHans Petter Selasky msg = list_entry(ent->head.next, struct mlx5_cmd_msg, 1194dc7e38acSHans Petter Selasky list); 1195dc7e38acSHans Petter Selasky /* For cached lists, we must explicitly state what is 1196dc7e38acSHans Petter Selasky * the real size 1197dc7e38acSHans Petter Selasky */ 1198dc7e38acSHans Petter Selasky msg->len = in_size; 1199dc7e38acSHans Petter Selasky list_del(&msg->list); 1200dc7e38acSHans Petter Selasky } 1201dc7e38acSHans Petter Selasky spin_unlock_irq(&ent->lock); 1202dc7e38acSHans Petter Selasky } 1203dc7e38acSHans Petter Selasky 1204dc7e38acSHans Petter Selasky if (IS_ERR(msg)) 1205dc7e38acSHans Petter Selasky msg = mlx5_alloc_cmd_msg(dev, gfp, in_size); 1206dc7e38acSHans Petter Selasky 1207dc7e38acSHans Petter Selasky return msg; 1208dc7e38acSHans Petter Selasky } 1209dc7e38acSHans Petter Selasky 1210dc7e38acSHans Petter Selasky static int is_manage_pages(struct mlx5_inbox_hdr *in) 1211dc7e38acSHans Petter Selasky { 1212dc7e38acSHans Petter Selasky return be16_to_cpu(in->opcode) == MLX5_CMD_OP_MANAGE_PAGES; 1213dc7e38acSHans Petter Selasky } 1214dc7e38acSHans Petter Selasky 1215dc7e38acSHans Petter Selasky static int cmd_exec_helper(struct mlx5_core_dev *dev, void *in, int in_size, void *out, 1216dc7e38acSHans Petter Selasky int out_size, mlx5_cmd_cbk_t callback, void *context) 1217dc7e38acSHans Petter Selasky { 1218dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *inb; 1219dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *outb; 1220dc7e38acSHans Petter Selasky int pages_queue; 1221dc7e38acSHans Petter Selasky gfp_t gfp; 1222dc7e38acSHans Petter Selasky int err; 1223dc7e38acSHans Petter Selasky u8 status = 0; 1224dc7e38acSHans Petter Selasky 1225dc7e38acSHans Petter Selasky pages_queue = is_manage_pages(in); 1226dc7e38acSHans Petter Selasky gfp = callback ? GFP_ATOMIC : GFP_KERNEL; 1227dc7e38acSHans Petter Selasky 1228dc7e38acSHans Petter Selasky inb = alloc_msg(dev, in_size, gfp); 1229dc7e38acSHans Petter Selasky if (IS_ERR(inb)) { 1230dc7e38acSHans Petter Selasky err = PTR_ERR(inb); 1231dc7e38acSHans Petter Selasky return err; 1232dc7e38acSHans Petter Selasky } 1233dc7e38acSHans Petter Selasky 1234dc7e38acSHans Petter Selasky err = mlx5_copy_to_msg(inb, in, in_size); 1235dc7e38acSHans Petter Selasky if (err) { 1236dc7e38acSHans Petter Selasky mlx5_core_warn(dev, "err %d\n", err); 1237dc7e38acSHans Petter Selasky goto out_in; 1238dc7e38acSHans Petter Selasky } 1239dc7e38acSHans Petter Selasky 1240dc7e38acSHans Petter Selasky outb = mlx5_alloc_cmd_msg(dev, gfp, out_size); 1241dc7e38acSHans Petter Selasky if (IS_ERR(outb)) { 1242dc7e38acSHans Petter Selasky err = PTR_ERR(outb); 1243dc7e38acSHans Petter Selasky goto out_in; 1244dc7e38acSHans Petter Selasky } 1245dc7e38acSHans Petter Selasky 1246dc7e38acSHans Petter Selasky err = mlx5_cmd_invoke(dev, inb, outb, out, out_size, callback, context, 1247dc7e38acSHans Petter Selasky pages_queue, &status); 124897ac3908SHans Petter Selasky if (err) { 124997ac3908SHans Petter Selasky if (err == -ETIMEDOUT) 125097ac3908SHans Petter Selasky return err; 1251dc7e38acSHans Petter Selasky goto out_out; 125297ac3908SHans Petter Selasky } 1253dc7e38acSHans Petter Selasky 1254dc7e38acSHans Petter Selasky mlx5_core_dbg(dev, "err %d, status %d\n", err, status); 1255dc7e38acSHans Petter Selasky if (status) { 1256dc7e38acSHans Petter Selasky err = status_to_err(status); 1257dc7e38acSHans Petter Selasky goto out_out; 1258dc7e38acSHans Petter Selasky } 1259dc7e38acSHans Petter Selasky 1260dc7e38acSHans Petter Selasky if (callback) 1261dc7e38acSHans Petter Selasky return err; 1262dc7e38acSHans Petter Selasky 1263dc7e38acSHans Petter Selasky err = mlx5_copy_from_msg(out, outb, out_size); 1264dc7e38acSHans Petter Selasky 1265dc7e38acSHans Petter Selasky out_out: 1266dc7e38acSHans Petter Selasky mlx5_free_cmd_msg(dev, outb); 1267dc7e38acSHans Petter Selasky 1268dc7e38acSHans Petter Selasky out_in: 1269dc7e38acSHans Petter Selasky free_msg(dev, inb); 1270dc7e38acSHans Petter Selasky return err; 1271dc7e38acSHans Petter Selasky } 1272dc7e38acSHans Petter Selasky 1273dc7e38acSHans Petter Selasky int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, 1274dc7e38acSHans Petter Selasky int out_size) 1275dc7e38acSHans Petter Selasky { 1276dc7e38acSHans Petter Selasky return cmd_exec_helper(dev, in, in_size, out, out_size, NULL, NULL); 1277dc7e38acSHans Petter Selasky } 1278dc7e38acSHans Petter Selasky EXPORT_SYMBOL(mlx5_cmd_exec); 1279dc7e38acSHans Petter Selasky 1280dc7e38acSHans Petter Selasky int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size, 1281dc7e38acSHans Petter Selasky void *out, int out_size, mlx5_cmd_cbk_t callback, 1282dc7e38acSHans Petter Selasky void *context) 1283dc7e38acSHans Petter Selasky { 1284dc7e38acSHans Petter Selasky return cmd_exec_helper(dev, in, in_size, out, out_size, callback, context); 1285dc7e38acSHans Petter Selasky } 1286dc7e38acSHans Petter Selasky EXPORT_SYMBOL(mlx5_cmd_exec_cb); 1287dc7e38acSHans Petter Selasky 1288dc7e38acSHans Petter Selasky static void destroy_msg_cache(struct mlx5_core_dev *dev) 1289dc7e38acSHans Petter Selasky { 1290dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1291dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *msg; 1292dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *n; 1293dc7e38acSHans Petter Selasky 1294dc7e38acSHans Petter Selasky list_for_each_entry_safe(msg, n, &cmd->cache.large.head, list) { 1295dc7e38acSHans Petter Selasky list_del(&msg->list); 1296dc7e38acSHans Petter Selasky mlx5_free_cmd_msg(dev, msg); 1297dc7e38acSHans Petter Selasky } 1298dc7e38acSHans Petter Selasky 1299dc7e38acSHans Petter Selasky list_for_each_entry_safe(msg, n, &cmd->cache.med.head, list) { 1300dc7e38acSHans Petter Selasky list_del(&msg->list); 1301dc7e38acSHans Petter Selasky mlx5_free_cmd_msg(dev, msg); 1302dc7e38acSHans Petter Selasky } 1303dc7e38acSHans Petter Selasky } 1304dc7e38acSHans Petter Selasky 1305dc7e38acSHans Petter Selasky static int create_msg_cache(struct mlx5_core_dev *dev) 1306dc7e38acSHans Petter Selasky { 1307dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1308dc7e38acSHans Petter Selasky struct mlx5_cmd_msg *msg; 1309dc7e38acSHans Petter Selasky int err; 1310dc7e38acSHans Petter Selasky int i; 1311dc7e38acSHans Petter Selasky 1312dc7e38acSHans Petter Selasky spin_lock_init(&cmd->cache.large.lock); 1313dc7e38acSHans Petter Selasky INIT_LIST_HEAD(&cmd->cache.large.head); 1314dc7e38acSHans Petter Selasky spin_lock_init(&cmd->cache.med.lock); 1315dc7e38acSHans Petter Selasky INIT_LIST_HEAD(&cmd->cache.med.head); 1316dc7e38acSHans Petter Selasky 1317dc7e38acSHans Petter Selasky for (i = 0; i < NUM_LONG_LISTS; i++) { 1318dc7e38acSHans Petter Selasky msg = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, LONG_LIST_SIZE); 1319dc7e38acSHans Petter Selasky if (IS_ERR(msg)) { 1320dc7e38acSHans Petter Selasky err = PTR_ERR(msg); 1321dc7e38acSHans Petter Selasky goto ex_err; 1322dc7e38acSHans Petter Selasky } 1323dc7e38acSHans Petter Selasky msg->cache = &cmd->cache.large; 1324dc7e38acSHans Petter Selasky list_add_tail(&msg->list, &cmd->cache.large.head); 1325dc7e38acSHans Petter Selasky } 1326dc7e38acSHans Petter Selasky 1327dc7e38acSHans Petter Selasky for (i = 0; i < NUM_MED_LISTS; i++) { 1328dc7e38acSHans Petter Selasky msg = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, MED_LIST_SIZE); 1329dc7e38acSHans Petter Selasky if (IS_ERR(msg)) { 1330dc7e38acSHans Petter Selasky err = PTR_ERR(msg); 1331dc7e38acSHans Petter Selasky goto ex_err; 1332dc7e38acSHans Petter Selasky } 1333dc7e38acSHans Petter Selasky msg->cache = &cmd->cache.med; 1334dc7e38acSHans Petter Selasky list_add_tail(&msg->list, &cmd->cache.med.head); 1335dc7e38acSHans Petter Selasky } 1336dc7e38acSHans Petter Selasky 1337dc7e38acSHans Petter Selasky return 0; 1338dc7e38acSHans Petter Selasky 1339dc7e38acSHans Petter Selasky ex_err: 1340dc7e38acSHans Petter Selasky destroy_msg_cache(dev); 1341dc7e38acSHans Petter Selasky return err; 1342dc7e38acSHans Petter Selasky } 1343dc7e38acSHans Petter Selasky 1344dc7e38acSHans Petter Selasky static int alloc_cmd_page(struct mlx5_core_dev *dev, struct mlx5_cmd *cmd) 1345dc7e38acSHans Petter Selasky { 1346dc7e38acSHans Petter Selasky struct device *ddev = &dev->pdev->dev; 1347dc7e38acSHans Petter Selasky cmd->cmd_alloc_buf = dma_zalloc_coherent(ddev, MLX5_ADAPTER_PAGE_SIZE, 1348dc7e38acSHans Petter Selasky &cmd->alloc_dma, GFP_KERNEL); 1349dc7e38acSHans Petter Selasky if (!cmd->cmd_alloc_buf) 1350dc7e38acSHans Petter Selasky return -ENOMEM; 1351dc7e38acSHans Petter Selasky 1352dc7e38acSHans Petter Selasky /* make sure it is aligned to 4K */ 1353dc7e38acSHans Petter Selasky if (!((uintptr_t)cmd->cmd_alloc_buf & (MLX5_ADAPTER_PAGE_SIZE - 1))) { 1354dc7e38acSHans Petter Selasky cmd->cmd_buf = cmd->cmd_alloc_buf; 1355dc7e38acSHans Petter Selasky cmd->dma = cmd->alloc_dma; 1356dc7e38acSHans Petter Selasky cmd->alloc_size = MLX5_ADAPTER_PAGE_SIZE; 1357dc7e38acSHans Petter Selasky return 0; 1358dc7e38acSHans Petter Selasky } 1359dc7e38acSHans Petter Selasky 1360dc7e38acSHans Petter Selasky dma_free_coherent(ddev, MLX5_ADAPTER_PAGE_SIZE, cmd->cmd_alloc_buf, cmd->alloc_dma); 1361dc7e38acSHans Petter Selasky cmd->cmd_alloc_buf = dma_zalloc_coherent(ddev, 2 * MLX5_ADAPTER_PAGE_SIZE - 1, 1362dc7e38acSHans Petter Selasky &cmd->alloc_dma, GFP_KERNEL); 1363dc7e38acSHans Petter Selasky if (!cmd->cmd_alloc_buf) 1364dc7e38acSHans Petter Selasky return -ENOMEM; 1365dc7e38acSHans Petter Selasky 1366dc7e38acSHans Petter Selasky cmd->cmd_buf = PTR_ALIGN(cmd->cmd_alloc_buf, MLX5_ADAPTER_PAGE_SIZE); 1367dc7e38acSHans Petter Selasky cmd->dma = ALIGN(cmd->alloc_dma, MLX5_ADAPTER_PAGE_SIZE); 1368dc7e38acSHans Petter Selasky cmd->alloc_size = 2 * MLX5_ADAPTER_PAGE_SIZE - 1; 1369dc7e38acSHans Petter Selasky return 0; 1370dc7e38acSHans Petter Selasky } 1371dc7e38acSHans Petter Selasky 1372dc7e38acSHans Petter Selasky static void free_cmd_page(struct mlx5_core_dev *dev, struct mlx5_cmd *cmd) 1373dc7e38acSHans Petter Selasky { 1374dc7e38acSHans Petter Selasky struct device *ddev = &dev->pdev->dev; 1375dc7e38acSHans Petter Selasky dma_free_coherent(ddev, cmd->alloc_size, cmd->cmd_alloc_buf, cmd->alloc_dma); 1376dc7e38acSHans Petter Selasky } 1377dc7e38acSHans Petter Selasky 1378dc7e38acSHans Petter Selasky int mlx5_cmd_init(struct mlx5_core_dev *dev) 1379dc7e38acSHans Petter Selasky { 1380dc7e38acSHans Petter Selasky int size = sizeof(struct mlx5_cmd_prot_block); 1381dc7e38acSHans Petter Selasky int align = roundup_pow_of_two(size); 1382dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1383dc7e38acSHans Petter Selasky u32 cmd_h, cmd_l; 1384dc7e38acSHans Petter Selasky u16 cmd_if_rev; 1385dc7e38acSHans Petter Selasky int err; 1386dc7e38acSHans Petter Selasky int i; 1387dc7e38acSHans Petter Selasky 1388dc7e38acSHans Petter Selasky cmd_if_rev = cmdif_rev_get(dev); 1389dc7e38acSHans Petter Selasky if (cmd_if_rev != CMD_IF_REV) { 1390dc7e38acSHans Petter Selasky device_printf((&dev->pdev->dev)->bsddev, "ERR: ""Driver cmdif rev(%d) differs from firmware's(%d)\n", CMD_IF_REV, cmd_if_rev); 1391dc7e38acSHans Petter Selasky return -EINVAL; 1392dc7e38acSHans Petter Selasky } 1393dc7e38acSHans Petter Selasky 1394dc7e38acSHans Petter Selasky cmd->pool = pci_pool_create("mlx5_cmd", dev->pdev, size, align, 0); 1395dc7e38acSHans Petter Selasky if (!cmd->pool) 1396dc7e38acSHans Petter Selasky return -ENOMEM; 1397dc7e38acSHans Petter Selasky 1398dc7e38acSHans Petter Selasky err = alloc_cmd_page(dev, cmd); 1399dc7e38acSHans Petter Selasky if (err) 1400dc7e38acSHans Petter Selasky goto err_free_pool; 1401dc7e38acSHans Petter Selasky 1402dc7e38acSHans Petter Selasky cmd_l = ioread32be(&dev->iseg->cmdq_addr_l_sz) & 0xff; 1403dc7e38acSHans Petter Selasky cmd->log_sz = cmd_l >> 4 & 0xf; 1404dc7e38acSHans Petter Selasky cmd->log_stride = cmd_l & 0xf; 1405dc7e38acSHans Petter Selasky if (1 << cmd->log_sz > MLX5_MAX_COMMANDS) { 1406dc7e38acSHans Petter Selasky device_printf((&dev->pdev->dev)->bsddev, "ERR: ""firmware reports too many outstanding commands %d\n", 1 << cmd->log_sz); 1407dc7e38acSHans Petter Selasky err = -EINVAL; 1408dc7e38acSHans Petter Selasky goto err_free_page; 1409dc7e38acSHans Petter Selasky } 1410dc7e38acSHans Petter Selasky 1411dc7e38acSHans Petter Selasky if (cmd->log_sz + cmd->log_stride > MLX5_ADAPTER_PAGE_SHIFT) { 1412dc7e38acSHans Petter Selasky device_printf((&dev->pdev->dev)->bsddev, "ERR: ""command queue size overflow\n"); 1413dc7e38acSHans Petter Selasky err = -EINVAL; 1414dc7e38acSHans Petter Selasky goto err_free_page; 1415dc7e38acSHans Petter Selasky } 1416dc7e38acSHans Petter Selasky 1417dc7e38acSHans Petter Selasky cmd->checksum_disabled = 1; 1418dc7e38acSHans Petter Selasky cmd->max_reg_cmds = (1 << cmd->log_sz) - 1; 1419dc7e38acSHans Petter Selasky cmd->bitmask = (1 << cmd->max_reg_cmds) - 1; 1420dc7e38acSHans Petter Selasky 1421dc7e38acSHans Petter Selasky cmd->cmdif_rev = ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16; 1422dc7e38acSHans Petter Selasky if (cmd->cmdif_rev > CMD_IF_REV) { 1423dc7e38acSHans Petter Selasky device_printf((&dev->pdev->dev)->bsddev, "ERR: ""driver does not support command interface version. driver %d, firmware %d\n", CMD_IF_REV, cmd->cmdif_rev); 1424dc7e38acSHans Petter Selasky err = -ENOTSUPP; 1425dc7e38acSHans Petter Selasky goto err_free_page; 1426dc7e38acSHans Petter Selasky } 1427dc7e38acSHans Petter Selasky 1428dc7e38acSHans Petter Selasky spin_lock_init(&cmd->alloc_lock); 1429dc7e38acSHans Petter Selasky spin_lock_init(&cmd->token_lock); 1430dc7e38acSHans Petter Selasky for (i = 0; i < ARRAY_SIZE(cmd->stats); i++) 1431dc7e38acSHans Petter Selasky spin_lock_init(&cmd->stats[i].lock); 1432dc7e38acSHans Petter Selasky 1433dc7e38acSHans Petter Selasky sema_init(&cmd->sem, cmd->max_reg_cmds); 1434dc7e38acSHans Petter Selasky sema_init(&cmd->pages_sem, 1); 1435dc7e38acSHans Petter Selasky 1436dc7e38acSHans Petter Selasky cmd_h = (u32)((u64)(cmd->dma) >> 32); 1437dc7e38acSHans Petter Selasky cmd_l = (u32)(cmd->dma); 1438dc7e38acSHans Petter Selasky if (cmd_l & 0xfff) { 1439dc7e38acSHans Petter Selasky device_printf((&dev->pdev->dev)->bsddev, "ERR: ""invalid command queue address\n"); 1440dc7e38acSHans Petter Selasky err = -ENOMEM; 1441dc7e38acSHans Petter Selasky goto err_free_page; 1442dc7e38acSHans Petter Selasky } 1443dc7e38acSHans Petter Selasky 1444dc7e38acSHans Petter Selasky iowrite32be(cmd_h, &dev->iseg->cmdq_addr_h); 1445dc7e38acSHans Petter Selasky iowrite32be(cmd_l, &dev->iseg->cmdq_addr_l_sz); 1446dc7e38acSHans Petter Selasky 1447dc7e38acSHans Petter Selasky /* Make sure firmware sees the complete address before we proceed */ 1448dc7e38acSHans Petter Selasky wmb(); 1449dc7e38acSHans Petter Selasky 1450dc7e38acSHans Petter Selasky mlx5_core_dbg(dev, "descriptor at dma 0x%llx\n", (unsigned long long)(cmd->dma)); 1451dc7e38acSHans Petter Selasky 1452dc7e38acSHans Petter Selasky cmd->mode = CMD_MODE_POLLING; 1453dc7e38acSHans Petter Selasky 1454dc7e38acSHans Petter Selasky err = create_msg_cache(dev); 1455dc7e38acSHans Petter Selasky if (err) { 1456dc7e38acSHans Petter Selasky device_printf((&dev->pdev->dev)->bsddev, "ERR: ""failed to create command cache\n"); 1457dc7e38acSHans Petter Selasky goto err_free_page; 1458dc7e38acSHans Petter Selasky } 1459dc7e38acSHans Petter Selasky 1460dc7e38acSHans Petter Selasky set_wqname(dev); 1461dc7e38acSHans Petter Selasky cmd->wq = create_singlethread_workqueue(cmd->wq_name); 1462dc7e38acSHans Petter Selasky if (!cmd->wq) { 1463dc7e38acSHans Petter Selasky device_printf((&dev->pdev->dev)->bsddev, "ERR: ""failed to create command workqueue\n"); 1464dc7e38acSHans Petter Selasky err = -ENOMEM; 1465dc7e38acSHans Petter Selasky goto err_cache; 1466dc7e38acSHans Petter Selasky } 1467dc7e38acSHans Petter Selasky 1468dc7e38acSHans Petter Selasky return 0; 1469dc7e38acSHans Petter Selasky 1470dc7e38acSHans Petter Selasky err_cache: 1471dc7e38acSHans Petter Selasky destroy_msg_cache(dev); 1472dc7e38acSHans Petter Selasky 1473dc7e38acSHans Petter Selasky err_free_page: 1474dc7e38acSHans Petter Selasky free_cmd_page(dev, cmd); 1475dc7e38acSHans Petter Selasky 1476dc7e38acSHans Petter Selasky err_free_pool: 1477dc7e38acSHans Petter Selasky pci_pool_destroy(cmd->pool); 1478dc7e38acSHans Petter Selasky 1479dc7e38acSHans Petter Selasky return err; 1480dc7e38acSHans Petter Selasky } 1481dc7e38acSHans Petter Selasky EXPORT_SYMBOL(mlx5_cmd_init); 1482dc7e38acSHans Petter Selasky 1483dc7e38acSHans Petter Selasky void mlx5_cmd_cleanup(struct mlx5_core_dev *dev) 1484dc7e38acSHans Petter Selasky { 1485dc7e38acSHans Petter Selasky struct mlx5_cmd *cmd = &dev->cmd; 1486dc7e38acSHans Petter Selasky 1487dc7e38acSHans Petter Selasky clean_debug_files(dev); 1488dc7e38acSHans Petter Selasky destroy_workqueue(cmd->wq); 1489dc7e38acSHans Petter Selasky destroy_msg_cache(dev); 1490dc7e38acSHans Petter Selasky free_cmd_page(dev, cmd); 1491dc7e38acSHans Petter Selasky pci_pool_destroy(cmd->pool); 1492dc7e38acSHans Petter Selasky } 1493dc7e38acSHans Petter Selasky EXPORT_SYMBOL(mlx5_cmd_cleanup); 1494dc7e38acSHans Petter Selasky 1495dc7e38acSHans Petter Selasky static const char *cmd_status_str(u8 status) 1496dc7e38acSHans Petter Selasky { 1497dc7e38acSHans Petter Selasky switch (status) { 1498dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_OK: 1499dc7e38acSHans Petter Selasky return "OK"; 1500dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_INT_ERR: 1501dc7e38acSHans Petter Selasky return "internal error"; 1502dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_OP_ERR: 1503dc7e38acSHans Petter Selasky return "bad operation"; 1504dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_PARAM_ERR: 1505dc7e38acSHans Petter Selasky return "bad parameter"; 1506dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_SYS_STATE_ERR: 1507dc7e38acSHans Petter Selasky return "bad system state"; 1508dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_RES_ERR: 1509dc7e38acSHans Petter Selasky return "bad resource"; 1510dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_RES_BUSY: 1511dc7e38acSHans Petter Selasky return "resource busy"; 1512dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_LIM_ERR: 1513dc7e38acSHans Petter Selasky return "limits exceeded"; 1514dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_RES_STATE_ERR: 1515dc7e38acSHans Petter Selasky return "bad resource state"; 1516dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_IX_ERR: 1517dc7e38acSHans Petter Selasky return "bad index"; 1518dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_NO_RES_ERR: 1519dc7e38acSHans Petter Selasky return "no resources"; 1520dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_INP_LEN_ERR: 1521dc7e38acSHans Petter Selasky return "bad input length"; 1522dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_OUTP_LEN_ERR: 1523dc7e38acSHans Petter Selasky return "bad output length"; 1524dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_QP_STATE_ERR: 1525dc7e38acSHans Petter Selasky return "bad QP state"; 1526dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_PKT_ERR: 1527dc7e38acSHans Petter Selasky return "bad packet (discarded)"; 1528dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_SIZE_OUTS_CQES_ERR: 1529dc7e38acSHans Petter Selasky return "bad size too many outstanding CQEs"; 1530dc7e38acSHans Petter Selasky default: 1531dc7e38acSHans Petter Selasky return "unknown status"; 1532dc7e38acSHans Petter Selasky } 1533dc7e38acSHans Petter Selasky } 1534dc7e38acSHans Petter Selasky 1535dc7e38acSHans Petter Selasky static int cmd_status_to_err_helper(u8 status) 1536dc7e38acSHans Petter Selasky { 1537dc7e38acSHans Petter Selasky switch (status) { 1538dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_OK: return 0; 1539dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_INT_ERR: return -EIO; 1540dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_OP_ERR: return -EINVAL; 1541dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_PARAM_ERR: return -EINVAL; 1542dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_SYS_STATE_ERR: return -EIO; 1543dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_RES_ERR: return -EINVAL; 1544dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_RES_BUSY: return -EBUSY; 1545dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_LIM_ERR: return -ENOMEM; 1546dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_RES_STATE_ERR: return -EINVAL; 1547dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_IX_ERR: return -EINVAL; 1548dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_NO_RES_ERR: return -EAGAIN; 1549dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_INP_LEN_ERR: return -EIO; 1550dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_OUTP_LEN_ERR: return -EIO; 1551dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_QP_STATE_ERR: return -EINVAL; 1552dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_PKT_ERR: return -EINVAL; 1553dc7e38acSHans Petter Selasky case MLX5_CMD_STAT_BAD_SIZE_OUTS_CQES_ERR: return -EINVAL; 1554dc7e38acSHans Petter Selasky default: return -EIO; 1555dc7e38acSHans Petter Selasky } 1556dc7e38acSHans Petter Selasky } 1557dc7e38acSHans Petter Selasky 1558dc7e38acSHans Petter Selasky /* this will be available till all the commands use set/get macros */ 1559dc7e38acSHans Petter Selasky int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr) 1560dc7e38acSHans Petter Selasky { 1561dc7e38acSHans Petter Selasky if (!hdr->status) 1562dc7e38acSHans Petter Selasky return 0; 1563dc7e38acSHans Petter Selasky 1564dc7e38acSHans Petter Selasky printf("mlx5_core: WARN: ""command failed, status %s(0x%x), syndrome 0x%x\n", cmd_status_str(hdr->status), hdr->status, be32_to_cpu(hdr->syndrome)); 1565dc7e38acSHans Petter Selasky 1566dc7e38acSHans Petter Selasky return cmd_status_to_err_helper(hdr->status); 1567dc7e38acSHans Petter Selasky } 1568dc7e38acSHans Petter Selasky 1569dc7e38acSHans Petter Selasky int mlx5_cmd_status_to_err_v2(void *ptr) 1570dc7e38acSHans Petter Selasky { 1571dc7e38acSHans Petter Selasky u32 syndrome; 1572dc7e38acSHans Petter Selasky u8 status; 1573dc7e38acSHans Petter Selasky 1574dc7e38acSHans Petter Selasky status = be32_to_cpu(*(__be32 *)ptr) >> 24; 1575dc7e38acSHans Petter Selasky if (!status) 1576dc7e38acSHans Petter Selasky return 0; 1577dc7e38acSHans Petter Selasky 1578dc7e38acSHans Petter Selasky syndrome = be32_to_cpu(*(__be32 *)(ptr + 4)); 1579dc7e38acSHans Petter Selasky 1580dc7e38acSHans Petter Selasky printf("mlx5_core: WARN: ""command failed, status %s(0x%x), syndrome 0x%x\n", cmd_status_str(status), status, syndrome); 1581dc7e38acSHans Petter Selasky 1582dc7e38acSHans Petter Selasky return cmd_status_to_err_helper(status); 1583dc7e38acSHans Petter Selasky } 1584