diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 402f3a20ec0a..1095c82b38c2 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -125,7 +125,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? IB_ATOMIC_HCA : IB_ATOMIC_NONE; - props->max_pkeys = dev->dev->caps.pkey_table_len; + props->max_pkeys = dev->dev->caps.pkey_table_len[1]; props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * @@ -168,9 +168,9 @@ static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, props->state = out_mad->data[32] & 0xf; props->phys_state = out_mad->data[33] >> 4; props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); - props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len; + props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; props->max_msg_sz = 0x80000000; - props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len; + props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); props->active_width = out_mad->data[31] & 0xf; @@ -280,8 +280,14 @@ static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, return PTR_ERR(mailbox); memset(mailbox->buf, 0, 256); - *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; - ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); + + if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { + *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; + ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); + } else { + ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; + ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); + } err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B); diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 95d4a9d6994c..355a31f9c03c 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -603,24 +603,6 @@ int mlx4_ib_destroy_qp(struct ib_qp *qp) return 0; } -static void init_port(struct mlx4_ib_dev *dev, int port) -{ - struct mlx4_init_port_param param; - int err; - - memset(¶m, 0, sizeof param); - - param.port_width_cap = dev->dev->caps.port_width_cap; - param.vl_cap = dev->dev->caps.vl_cap; - param.mtu = ib_mtu_enum_to_int(dev->dev->caps.mtu_cap); - param.max_gid = dev->dev->caps.gid_table_len; - param.max_pkey = dev->dev->caps.pkey_table_len; - - err = mlx4_INIT_PORT(dev->dev, ¶m, port); - if (err) - printk(KERN_WARNING "INIT_PORT failed, return code %d.\n", err); -} - static int to_mlx4_st(enum ib_qp_type type) { switch (type) { @@ -694,9 +676,9 @@ static int mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah, path->counter_index = 0xff; if (ah->ah_flags & IB_AH_GRH) { - if (ah->grh.sgid_index >= dev->dev->caps.gid_table_len) { + if (ah->grh.sgid_index >= dev->dev->caps.gid_table_len[port]) { printk(KERN_ERR "sgid_index (%u) too large. max is %d\n", - ah->grh.sgid_index, dev->dev->caps.gid_table_len - 1); + ah->grh.sgid_index, dev->dev->caps.gid_table_len[port] - 1); return -1; } @@ -812,13 +794,14 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, } if (attr_mask & IB_QP_ALT_PATH) { - if (attr->alt_pkey_index >= dev->dev->caps.pkey_table_len) - return -EINVAL; - if (attr->alt_port_num == 0 || attr->alt_port_num > dev->dev->caps.num_ports) return -EINVAL; + if (attr->alt_pkey_index >= + dev->dev->caps.pkey_table_len[attr->alt_port_num]) + return -EINVAL; + if (mlx4_set_path(dev, &attr->alt_ah_attr, &context->alt_path, attr->alt_port_num)) return -EINVAL; @@ -949,7 +932,9 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, */ if (is_qp0(dev, qp)) { if (cur_state != IB_QPS_RTR && new_state == IB_QPS_RTR) - init_port(dev, qp->port); + if (mlx4_INIT_PORT(dev->dev, qp->port)) + printk(KERN_WARNING "INIT_PORT failed for port %d\n", + qp->port); if (cur_state != IB_QPS_RESET && cur_state != IB_QPS_ERR && (new_state == IB_QPS_RESET || new_state == IB_QPS_ERR)) @@ -1012,16 +997,17 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask)) goto out; - if ((attr_mask & IB_QP_PKEY_INDEX) && - attr->pkey_index >= dev->dev->caps.pkey_table_len) { - goto out; - } - if ((attr_mask & IB_QP_PORT) && (attr->port_num == 0 || attr->port_num > dev->dev->caps.num_ports)) { goto out; } + if (attr_mask & IB_QP_PKEY_INDEX) { + int p = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; + if (attr->pkey_index >= dev->dev->caps.pkey_table_len[p]) + goto out; + } + if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && attr->max_rd_atomic > dev->dev->caps.max_qp_init_rdma) { goto out; diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c index 81fc546a1c44..d2b065351e45 100644 --- a/drivers/net/mlx4/fw.c +++ b/drivers/net/mlx4/fw.c @@ -38,7 +38,9 @@ #include "icm.h" enum { - MLX4_COMMAND_INTERFACE_REV = 2, + MLX4_COMMAND_INTERFACE_MIN_REV = 2, + MLX4_COMMAND_INTERFACE_MAX_REV = 3, + MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS = 3, }; extern void __buggy_use_of_MLX4_GET(void); @@ -107,6 +109,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) u16 size; u16 stat_rate; int err; + int i; #define QUERY_DEV_CAP_OUT_SIZE 0x100 #define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET 0x10 @@ -176,7 +179,6 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP, MLX4_CMD_TIME_CLASS_A); - if (err) goto out; @@ -216,18 +218,10 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev_cap->max_rdma_global = 1 << (field & 0x3f); MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET); dev_cap->local_ca_ack_delay = field & 0x1f; - MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET); - dev_cap->max_mtu = field >> 4; - dev_cap->max_port_width = field & 0xf; MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET); - dev_cap->max_vl = field >> 4; dev_cap->num_ports = field & 0xf; - MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET); - dev_cap->max_gids = 1 << (field & 0xf); MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET); dev_cap->stat_rate_support = stat_rate; - MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET); - dev_cap->max_pkeys = 1 << (field & 0xf); MLX4_GET(dev_cap->flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET); MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET); dev_cap->reserved_uars = field >> 4; @@ -304,6 +298,42 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) MLX4_GET(dev_cap->max_icm_sz, outbox, QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET); + if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { + for (i = 1; i <= dev_cap->num_ports; ++i) { + MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET); + dev_cap->max_vl[i] = field >> 4; + MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET); + dev_cap->max_mtu[i] = field >> 4; + dev_cap->max_port_width[i] = field & 0xf; + MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET); + dev_cap->max_gids[i] = 1 << (field & 0xf); + MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET); + dev_cap->max_pkeys[i] = 1 << (field & 0xf); + } + } else { +#define QUERY_PORT_MTU_OFFSET 0x01 +#define QUERY_PORT_WIDTH_OFFSET 0x06 +#define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07 +#define QUERY_PORT_MAX_VL_OFFSET 0x0b + + for (i = 1; i <= dev_cap->num_ports; ++i) { + err = mlx4_cmd_box(dev, 0, mailbox->dma, i, 0, MLX4_CMD_QUERY_PORT, + MLX4_CMD_TIME_CLASS_B); + if (err) + goto out; + + MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET); + dev_cap->max_mtu[i] = field & 0xf; + MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET); + dev_cap->max_port_width[i] = field & 0xf; + MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET); + dev_cap->max_gids[i] = 1 << (field >> 4); + dev_cap->max_pkeys[i] = 1 << (field & 0xf); + MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET); + dev_cap->max_vl[i] = field & 0xf; + } + } + if (dev_cap->bmme_flags & 1) mlx4_dbg(dev, "Base MM extensions: yes " "(flags %d, rsvd L_Key %08x)\n", @@ -338,8 +368,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n", dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz); mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n", - dev_cap->local_ca_ack_delay, 128 << dev_cap->max_mtu, - dev_cap->max_port_width); + dev_cap->local_ca_ack_delay, 128 << dev_cap->max_mtu[1], + dev_cap->max_port_width[1]); mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n", dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg); mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n", @@ -491,7 +521,8 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev) ((fw_ver & 0x0000ffffull) << 16); MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET); - if (cmd_if_rev != MLX4_COMMAND_INTERFACE_REV) { + if (cmd_if_rev < MLX4_COMMAND_INTERFACE_MIN_REV || + cmd_if_rev > MLX4_COMMAND_INTERFACE_MAX_REV) { mlx4_err(dev, "Installed FW has unsupported " "command interface revision %d.\n", cmd_if_rev); @@ -499,12 +530,15 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev) (int) (dev->caps.fw_ver >> 32), (int) (dev->caps.fw_ver >> 16) & 0xffff, (int) dev->caps.fw_ver & 0xffff); - mlx4_err(dev, "This driver version supports only revision %d.\n", - MLX4_COMMAND_INTERFACE_REV); + mlx4_err(dev, "This driver version supports only revisions %d to %d.\n", + MLX4_COMMAND_INTERFACE_MIN_REV, MLX4_COMMAND_INTERFACE_MAX_REV); err = -ENODEV; goto out; } + if (cmd_if_rev < MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS) + dev->flags |= MLX4_FLAG_OLD_PORT_CMDS; + MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET); cmd->max_cmds = 1 << lg; @@ -708,13 +742,15 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param) return err; } -int mlx4_INIT_PORT(struct mlx4_dev *dev, struct mlx4_init_port_param *param, int port) +int mlx4_INIT_PORT(struct mlx4_dev *dev, int port) { struct mlx4_cmd_mailbox *mailbox; u32 *inbox; int err; u32 flags; + u16 field; + if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { #define INIT_PORT_IN_SIZE 256 #define INIT_PORT_FLAGS_OFFSET 0x00 #define INIT_PORT_FLAG_SIG (1 << 18) @@ -729,32 +765,32 @@ int mlx4_INIT_PORT(struct mlx4_dev *dev, struct mlx4_init_port_param *param, int #define INIT_PORT_NODE_GUID_OFFSET 0x18 #define INIT_PORT_SI_GUID_OFFSET 0x20 - mailbox = mlx4_alloc_cmd_mailbox(dev); - if (IS_ERR(mailbox)) - return PTR_ERR(mailbox); - inbox = mailbox->buf; + mailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + inbox = mailbox->buf; - memset(inbox, 0, INIT_PORT_IN_SIZE); + memset(inbox, 0, INIT_PORT_IN_SIZE); - flags = 0; - flags |= param->set_guid0 ? INIT_PORT_FLAG_G0 : 0; - flags |= param->set_node_guid ? INIT_PORT_FLAG_NG : 0; - flags |= param->set_si_guid ? INIT_PORT_FLAG_SIG : 0; - flags |= (param->vl_cap & 0xf) << INIT_PORT_VL_SHIFT; - flags |= (param->port_width_cap & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT; - MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET); + flags = 0; + flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT; + flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT; + MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET); - MLX4_PUT(inbox, param->mtu, INIT_PORT_MTU_OFFSET); - MLX4_PUT(inbox, param->max_gid, INIT_PORT_MAX_GID_OFFSET); - MLX4_PUT(inbox, param->max_pkey, INIT_PORT_MAX_PKEY_OFFSET); - MLX4_PUT(inbox, param->guid0, INIT_PORT_GUID0_OFFSET); - MLX4_PUT(inbox, param->node_guid, INIT_PORT_NODE_GUID_OFFSET); - MLX4_PUT(inbox, param->si_guid, INIT_PORT_SI_GUID_OFFSET); + field = 128 << dev->caps.mtu_cap[port]; + MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET); + field = dev->caps.gid_table_len[port]; + MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET); + field = dev->caps.pkey_table_len[port]; + MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET); - err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT, - MLX4_CMD_TIME_CLASS_A); + err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT, + MLX4_CMD_TIME_CLASS_A); - mlx4_free_cmd_mailbox(dev, mailbox); + mlx4_free_cmd_mailbox(dev, mailbox); + } else + err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT, + MLX4_CMD_TIME_CLASS_A); return err; } diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h index 2616fa53d4d0..296254ac27c1 100644 --- a/drivers/net/mlx4/fw.h +++ b/drivers/net/mlx4/fw.h @@ -59,13 +59,13 @@ struct mlx4_dev_cap { int max_responder_per_qp; int max_rdma_global; int local_ca_ack_delay; - int max_mtu; - int max_port_width; - int max_vl; int num_ports; - int max_gids; + int max_mtu[MLX4_MAX_PORTS + 1]; + int max_port_width[MLX4_MAX_PORTS + 1]; + int max_vl[MLX4_MAX_PORTS + 1]; + int max_gids[MLX4_MAX_PORTS + 1]; + int max_pkeys[MLX4_MAX_PORTS + 1]; u16 stat_rate_support; - int max_pkeys; u32 flags; int reserved_uars; int uar_size; diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index d4172937025b..41eafebf5823 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -88,6 +88,7 @@ static struct mlx4_profile default_profile = { static int __devinit mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) { int err; + int i; err = mlx4_QUERY_DEV_CAP(dev, dev_cap); if (err) { @@ -117,11 +118,15 @@ static int __devinit mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev } dev->caps.num_ports = dev_cap->num_ports; + for (i = 1; i <= dev->caps.num_ports; ++i) { + dev->caps.vl_cap[i] = dev_cap->max_vl[i]; + dev->caps.mtu_cap[i] = dev_cap->max_mtu[i]; + dev->caps.gid_table_len[i] = dev_cap->max_gids[i]; + dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i]; + dev->caps.port_width_cap[i] = dev_cap->max_port_width[i]; + } + dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE; - dev->caps.vl_cap = dev_cap->max_vl; - dev->caps.mtu_cap = dev_cap->max_mtu; - dev->caps.gid_table_len = dev_cap->max_gids; - dev->caps.pkey_table_len = dev_cap->max_pkeys; dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay; dev->caps.bf_reg_size = dev_cap->bf_reg_size; dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page; @@ -148,7 +153,6 @@ static int __devinit mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev dev->caps.reserved_mrws = dev_cap->reserved_mrws; dev->caps.reserved_uars = dev_cap->reserved_uars; dev->caps.reserved_pds = dev_cap->reserved_pds; - dev->caps.port_width_cap = dev_cap->max_port_width; dev->caps.mtt_entry_sz = MLX4_MTT_ENTRY_PER_SEG * dev_cap->mtt_entry_sz; dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1); dev->caps.flags = dev_cap->flags; diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h index 4fb552d12f7a..7d1eaa97de13 100644 --- a/include/linux/mlx4/cmd.h +++ b/include/linux/mlx4/cmd.h @@ -54,6 +54,7 @@ enum { MLX4_CMD_INIT_PORT = 0x9, MLX4_CMD_CLOSE_PORT = 0xa, MLX4_CMD_QUERY_HCA = 0xb, + MLX4_CMD_QUERY_PORT = 0x43, MLX4_CMD_SET_PORT = 0xc, MLX4_CMD_ACCESS_DDR = 0x2e, MLX4_CMD_MAP_ICM = 0xffa, diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 8c5f8fd86841..b372f5910fc1 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -41,6 +41,7 @@ enum { MLX4_FLAG_MSI_X = 1 << 0, + MLX4_FLAG_OLD_PORT_CMDS = 1 << 1, }; enum { @@ -131,10 +132,10 @@ enum { struct mlx4_caps { u64 fw_ver; int num_ports; - int vl_cap; - int mtu_cap; - int gid_table_len; - int pkey_table_len; + int vl_cap[MLX4_MAX_PORTS + 1]; + int mtu_cap[MLX4_MAX_PORTS + 1]; + int gid_table_len[MLX4_MAX_PORTS + 1]; + int pkey_table_len[MLX4_MAX_PORTS + 1]; int local_ca_ack_delay; int num_uars; int bf_reg_size; @@ -174,7 +175,7 @@ struct mlx4_caps { u32 page_size_cap; u32 flags; u16 stat_rate_support; - u8 port_width_cap; + u8 port_width_cap[MLX4_MAX_PORTS + 1]; }; struct mlx4_buf_list { @@ -322,7 +323,7 @@ int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt, void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq); int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark); -int mlx4_INIT_PORT(struct mlx4_dev *dev, struct mlx4_init_port_param *param, int port); +int mlx4_INIT_PORT(struct mlx4_dev *dev, int port); int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port); int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);