mlx4_core: Add "native" argument to mlx4_cmd and its callers (where needed)

For SRIOV, some Hypervisor commands can be executed directly (native = 1).
Others should go through the command wrapper flow (for tracking resource
usage, for example, or for changing some HCA configurations that slaves
need to be notified of).

This patch sets the groundwork for this capability -- adding the correct
value of "native" in each case.

Note that if SRIOV is not activated, this parameter has no effect.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jack Morgenstein 2011-12-13 04:10:51 +00:00 committed by David S. Miller
parent 65dab25deb
commit f9baff509f
16 changed files with 102 additions and 67 deletions

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@ -109,7 +109,8 @@ int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
err = mlx4_cmd_box(dev->dev, inmailbox->dma, outmailbox->dma, err = mlx4_cmd_box(dev->dev, inmailbox->dma, outmailbox->dma,
in_modifier, op_modifier, in_modifier, op_modifier,
MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C); MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
MLX4_CMD_NATIVE);
if (!err) if (!err)
memcpy(response_mad, outmailbox->buf, 256); memcpy(response_mad, outmailbox->buf, 256);
@ -330,7 +331,8 @@ static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
return IB_MAD_RESULT_FAILURE; return IB_MAD_RESULT_FAILURE;
err = mlx4_cmd_box(dev->dev, 0, mailbox->dma, inmod, 0, err = mlx4_cmd_box(dev->dev, 0, mailbox->dma, inmod, 0,
MLX4_CMD_QUERY_IF_STAT, MLX4_CMD_TIME_CLASS_C); MLX4_CMD_QUERY_IF_STAT, MLX4_CMD_TIME_CLASS_C,
MLX4_CMD_WRAPPED);
if (err) if (err)
err = IB_MAD_RESULT_FAILURE; err = IB_MAD_RESULT_FAILURE;
else { else {

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@ -434,7 +434,7 @@ static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
memset(mailbox->buf, 0, 256); memset(mailbox->buf, 0, 256);
memcpy(mailbox->buf, props->node_desc, 64); memcpy(mailbox->buf, props->node_desc, 64);
mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0, mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A); MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox); mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
@ -463,7 +463,7 @@ static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
} }
err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT, err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev->dev, mailbox); mlx4_free_cmd_mailbox(dev->dev, mailbox);
return err; return err;
@ -899,7 +899,8 @@ static void update_gids_task(struct work_struct *work)
memcpy(gids, gw->gids, sizeof gw->gids); memcpy(gids, gw->gids, sizeof gw->gids);
err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port, err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B); 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_NATIVE);
if (err) if (err)
printk(KERN_WARNING "set port command failed\n"); printk(KERN_WARNING "set port command failed\n");
else { else {

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@ -311,7 +311,7 @@ static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
int out_is_imm, u32 in_modifier, u8 op_modifier, int out_is_imm, u32 in_modifier, u8 op_modifier,
u16 op, unsigned long timeout) u16 op, unsigned long timeout, int native)
{ {
if (mlx4_priv(dev)->cmd.use_events) if (mlx4_priv(dev)->cmd.use_events)
return mlx4_cmd_wait(dev, in_param, out_param, out_is_imm, return mlx4_cmd_wait(dev, in_param, out_param, out_is_imm,

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@ -118,14 +118,14 @@ static int mlx4_SW2HW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int cq_num) int cq_num)
{ {
return mlx4_cmd(dev, mailbox->dma, cq_num, 0, MLX4_CMD_SW2HW_CQ, return mlx4_cmd(dev, mailbox->dma, cq_num, 0, MLX4_CMD_SW2HW_CQ,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
} }
static int mlx4_MODIFY_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, static int mlx4_MODIFY_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int cq_num, u32 opmod) int cq_num, u32 opmod)
{ {
return mlx4_cmd(dev, mailbox->dma, cq_num, opmod, MLX4_CMD_MODIFY_CQ, return mlx4_cmd(dev, mailbox->dma, cq_num, opmod, MLX4_CMD_MODIFY_CQ,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
} }
static int mlx4_HW2SW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, static int mlx4_HW2SW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
@ -133,7 +133,7 @@ static int mlx4_HW2SW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
{ {
return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, cq_num, return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, cq_num,
mailbox ? 0 : 1, MLX4_CMD_HW2SW_CQ, mailbox ? 0 : 1, MLX4_CMD_HW2SW_CQ,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
} }
int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq, int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq,

View File

@ -45,7 +45,8 @@ int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port,
u64 mac, u64 clear, u8 mode) u64 mac, u64 clear, u8 mode)
{ {
return mlx4_cmd(dev, (mac | (clear << 63)), port, mode, return mlx4_cmd(dev, (mac | (clear << 63)), port, mode,
MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B); MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
} }
int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv) int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
@ -72,7 +73,7 @@ int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
filter->entry[i] = cpu_to_be32(entry); filter->entry[i] = cpu_to_be32(entry);
} }
err = mlx4_cmd(dev, mailbox->dma, priv->port, 0, MLX4_CMD_SET_VLAN_FLTR, err = mlx4_cmd(dev, mailbox->dma, priv->port, 0, MLX4_CMD_SET_VLAN_FLTR,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
return err; return err;
} }
@ -101,7 +102,7 @@ int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
in_mod = MLX4_SET_PORT_GENERAL << 8 | port; in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT, err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
return err; return err;
@ -140,7 +141,7 @@ int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
in_mod = MLX4_SET_PORT_RQP_CALC << 8 | port; in_mod = MLX4_SET_PORT_RQP_CALC << 8 | port;
err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT, err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
return err; return err;
@ -159,7 +160,8 @@ int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
return PTR_ERR(mailbox); return PTR_ERR(mailbox);
memset(mailbox->buf, 0, sizeof(*qport_context)); memset(mailbox->buf, 0, sizeof(*qport_context));
err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0, err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B); MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
if (err) if (err)
goto out; goto out;
qport_context = mailbox->buf; qport_context = mailbox->buf;
@ -204,7 +206,8 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
return PTR_ERR(mailbox); return PTR_ERR(mailbox);
memset(mailbox->buf, 0, sizeof(*mlx4_en_stats)); memset(mailbox->buf, 0, sizeof(*mlx4_en_stats));
err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0, err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B); MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
if (err) if (err)
goto out; goto out;

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@ -43,7 +43,7 @@
static int mlx4_en_test_registers(struct mlx4_en_priv *priv) static int mlx4_en_test_registers(struct mlx4_en_priv *priv)
{ {
return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK, return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
} }
static int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv) static int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv)

View File

@ -255,21 +255,24 @@ static int mlx4_MAP_EQ(struct mlx4_dev *dev, u64 event_mask, int unmap,
int eq_num) int eq_num)
{ {
return mlx4_cmd(dev, event_mask, (unmap << 31) | eq_num, return mlx4_cmd(dev, event_mask, (unmap << 31) | eq_num,
0, MLX4_CMD_MAP_EQ, MLX4_CMD_TIME_CLASS_B); 0, MLX4_CMD_MAP_EQ, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
} }
static int mlx4_SW2HW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, static int mlx4_SW2HW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int eq_num) int eq_num)
{ {
return mlx4_cmd(dev, mailbox->dma, eq_num, 0, MLX4_CMD_SW2HW_EQ, return mlx4_cmd(dev, mailbox->dma, eq_num, 0, MLX4_CMD_SW2HW_EQ,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_WRAPPED);
} }
static int mlx4_HW2SW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, static int mlx4_HW2SW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int eq_num) int eq_num)
{ {
return mlx4_cmd_box(dev, 0, mailbox->dma, eq_num, 0, MLX4_CMD_HW2SW_EQ, return mlx4_cmd_box(dev, 0, mailbox->dma, eq_num, 0, MLX4_CMD_HW2SW_EQ,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_WRAPPED);
} }
static int mlx4_num_eq_uar(struct mlx4_dev *dev) static int mlx4_num_eq_uar(struct mlx4_dev *dev)

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@ -139,7 +139,7 @@ int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET); MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG, err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
return err; return err;
@ -229,7 +229,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
outbox = mailbox->buf; outbox = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP, err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, !mlx4_is_slave(dev));
if (err) if (err)
goto out; goto out;
@ -396,7 +396,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
for (i = 1; i <= dev_cap->num_ports; ++i) { for (i = 1; i <= dev_cap->num_ports; ++i) {
err = mlx4_cmd_box(dev, 0, mailbox->dma, i, 0, MLX4_CMD_QUERY_PORT, err = mlx4_cmd_box(dev, 0, mailbox->dma, i, 0, MLX4_CMD_QUERY_PORT,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B,
!mlx4_is_slave(dev));
if (err) if (err)
goto out; goto out;
@ -519,7 +520,8 @@ int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
if (++nent == MLX4_MAILBOX_SIZE / 16) { if (++nent == MLX4_MAILBOX_SIZE / 16) {
err = mlx4_cmd(dev, mailbox->dma, nent, 0, op, err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_NATIVE);
if (err) if (err)
goto out; goto out;
nent = 0; nent = 0;
@ -528,7 +530,8 @@ int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
} }
if (nent) if (nent)
err = mlx4_cmd(dev, mailbox->dma, nent, 0, op, MLX4_CMD_TIME_CLASS_B); err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
if (err) if (err)
goto out; goto out;
@ -557,13 +560,15 @@ int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
int mlx4_UNMAP_FA(struct mlx4_dev *dev) int mlx4_UNMAP_FA(struct mlx4_dev *dev)
{ {
return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA, MLX4_CMD_TIME_CLASS_B); return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
} }
int mlx4_RUN_FW(struct mlx4_dev *dev) int mlx4_RUN_FW(struct mlx4_dev *dev)
{ {
return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW, MLX4_CMD_TIME_CLASS_A); return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
} }
int mlx4_QUERY_FW(struct mlx4_dev *dev) int mlx4_QUERY_FW(struct mlx4_dev *dev)
@ -595,7 +600,7 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev)
outbox = mailbox->buf; outbox = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW, err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err) if (err)
goto out; goto out;
@ -711,7 +716,7 @@ int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
outbox = mailbox->buf; outbox = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER, err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err) if (err)
goto out; goto out;
@ -834,7 +839,8 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
MLX4_PUT(inbox, (u8) (PAGE_SHIFT - 12), INIT_HCA_UAR_PAGE_SZ_OFFSET); MLX4_PUT(inbox, (u8) (PAGE_SHIFT - 12), INIT_HCA_UAR_PAGE_SZ_OFFSET);
MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET); MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA, 10000); err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA, 10000,
MLX4_CMD_NATIVE);
if (err) if (err)
mlx4_err(dev, "INIT_HCA returns %d\n", err); mlx4_err(dev, "INIT_HCA returns %d\n", err);
@ -886,12 +892,12 @@ int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET); MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET);
err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT, err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
} else } else
err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT, err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
return err; return err;
} }
@ -899,20 +905,22 @@ EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port) int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
{ {
return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT, 1000); return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT, 1000,
MLX4_CMD_WRAPPED);
} }
EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT); EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic) int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
{ {
return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA, 1000); return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA, 1000,
MLX4_CMD_NATIVE);
} }
int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages) int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
{ {
int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0, int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
MLX4_CMD_SET_ICM_SIZE, MLX4_CMD_SET_ICM_SIZE,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (ret) if (ret)
return ret; return ret;
@ -929,7 +937,7 @@ int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
int mlx4_NOP(struct mlx4_dev *dev) int mlx4_NOP(struct mlx4_dev *dev)
{ {
/* Input modifier of 0x1f means "finish as soon as possible." */ /* Input modifier of 0x1f means "finish as soon as possible." */
return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, 100); return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, 100, MLX4_CMD_NATIVE);
} }
#define MLX4_WOL_SETUP_MODE (5 << 28) #define MLX4_WOL_SETUP_MODE (5 << 28)
@ -938,7 +946,8 @@ int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8; u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3, return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A); MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
} }
EXPORT_SYMBOL_GPL(mlx4_wol_read); EXPORT_SYMBOL_GPL(mlx4_wol_read);
@ -947,6 +956,6 @@ int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8; u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG, return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
} }
EXPORT_SYMBOL_GPL(mlx4_wol_write); EXPORT_SYMBOL_GPL(mlx4_wol_write);

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@ -213,7 +213,7 @@ static int mlx4_MAP_ICM(struct mlx4_dev *dev, struct mlx4_icm *icm, u64 virt)
static int mlx4_UNMAP_ICM(struct mlx4_dev *dev, u64 virt, u32 page_count) static int mlx4_UNMAP_ICM(struct mlx4_dev *dev, u64 virt, u32 page_count)
{ {
return mlx4_cmd(dev, virt, page_count, 0, MLX4_CMD_UNMAP_ICM, return mlx4_cmd(dev, virt, page_count, 0, MLX4_CMD_UNMAP_ICM,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
} }
int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm) int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm)
@ -223,7 +223,8 @@ int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm)
int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev) int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev)
{ {
return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_ICM_AUX, MLX4_CMD_TIME_CLASS_B); return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_ICM_AUX,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
} }
int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj) int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)

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@ -48,14 +48,14 @@ static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index,
struct mlx4_cmd_mailbox *mailbox) struct mlx4_cmd_mailbox *mailbox)
{ {
return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG, return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
} }
static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index, static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index,
struct mlx4_cmd_mailbox *mailbox) struct mlx4_cmd_mailbox *mailbox)
{ {
return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG, return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
} }
static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 steer, static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 steer,
@ -65,7 +65,8 @@ static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 stee
in_mod = (u32) vep_num << 24 | (u32) port << 16 | steer << 1; in_mod = (u32) vep_num << 24 | (u32) port << 16 | steer << 1;
return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1, return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1,
MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A); MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
} }
static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
@ -75,7 +76,8 @@ static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int err; int err;
err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod, err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod,
MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A); MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (!err) if (!err)
*hash = imm; *hash = imm;

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@ -254,14 +254,15 @@ static int mlx4_SW2HW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
int mpt_index) int mpt_index)
{ {
return mlx4_cmd(dev, mailbox->dma, mpt_index, 0, MLX4_CMD_SW2HW_MPT, return mlx4_cmd(dev, mailbox->dma, mpt_index, 0, MLX4_CMD_SW2HW_MPT,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
} }
static int mlx4_HW2SW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, static int mlx4_HW2SW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int mpt_index) int mpt_index)
{ {
return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index, return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index,
!mailbox, MLX4_CMD_HW2SW_MPT, MLX4_CMD_TIME_CLASS_B); !mailbox, MLX4_CMD_HW2SW_MPT,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
} }
int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access, int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
@ -663,6 +664,7 @@ EXPORT_SYMBOL_GPL(mlx4_fmr_free);
int mlx4_SYNC_TPT(struct mlx4_dev *dev) int mlx4_SYNC_TPT(struct mlx4_dev *dev)
{ {
return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_SYNC_TPT, 1000); return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_SYNC_TPT, 1000,
MLX4_CMD_WRAPPED);
} }
EXPORT_SYMBOL_GPL(mlx4_SYNC_TPT); EXPORT_SYMBOL_GPL(mlx4_SYNC_TPT);

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@ -85,7 +85,7 @@ static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port,
in_mod = MLX4_SET_PORT_MAC_TABLE << 8 | port; in_mod = MLX4_SET_PORT_MAC_TABLE << 8 | port;
err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT, err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
return err; return err;
@ -326,7 +326,7 @@ static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port,
memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE); memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE);
in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port; in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port;
err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT, err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
@ -462,7 +462,8 @@ int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
*(__be32 *) (&inbuf[20]) = cpu_to_be32(port); *(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3, err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C); MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
MLX4_CMD_NATIVE);
if (!err) if (!err)
*caps = *(__be32 *) (outbuf + 84); *caps = *(__be32 *) (outbuf + 84);
mlx4_free_cmd_mailbox(dev, inmailbox); mlx4_free_cmd_mailbox(dev, inmailbox);
@ -499,7 +500,8 @@ int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port)
*(__be32 *) (&inbuf[20]) = cpu_to_be32(port); *(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3, err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C); MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
MLX4_CMD_NATIVE);
packet_error = be16_to_cpu(*(__be16 *) (outbuf + 4)); packet_error = be16_to_cpu(*(__be16 *) (outbuf + 4));
@ -528,7 +530,7 @@ int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port]; ((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT, err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
return err; return err;

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@ -119,7 +119,8 @@ int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
if (op[cur_state][new_state] == MLX4_CMD_2RST_QP) if (op[cur_state][new_state] == MLX4_CMD_2RST_QP)
return mlx4_cmd(dev, 0, qp->qpn, 2, return mlx4_cmd(dev, 0, qp->qpn, 2,
MLX4_CMD_2RST_QP, MLX4_CMD_TIME_CLASS_A); MLX4_CMD_2RST_QP, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_WRAPPED);
mailbox = mlx4_alloc_cmd_mailbox(dev); mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) if (IS_ERR(mailbox))
@ -140,7 +141,8 @@ int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
ret = mlx4_cmd(dev, mailbox->dma, qp->qpn | (!!sqd_event << 31), ret = mlx4_cmd(dev, mailbox->dma, qp->qpn | (!!sqd_event << 31),
new_state == MLX4_QP_STATE_RST ? 2 : 0, new_state == MLX4_QP_STATE_RST ? 2 : 0,
op[cur_state][new_state], MLX4_CMD_TIME_CLASS_C); op[cur_state][new_state], MLX4_CMD_TIME_CLASS_C,
MLX4_CMD_WRAPPED);
mlx4_free_cmd_mailbox(dev, mailbox); mlx4_free_cmd_mailbox(dev, mailbox);
return ret; return ret;
@ -265,7 +267,7 @@ EXPORT_SYMBOL_GPL(mlx4_qp_free);
static int mlx4_CONF_SPECIAL_QP(struct mlx4_dev *dev, u32 base_qpn) static int mlx4_CONF_SPECIAL_QP(struct mlx4_dev *dev, u32 base_qpn)
{ {
return mlx4_cmd(dev, 0, base_qpn, 0, MLX4_CMD_CONF_SPECIAL_QP, return mlx4_cmd(dev, 0, base_qpn, 0, MLX4_CMD_CONF_SPECIAL_QP,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
} }
int mlx4_init_qp_table(struct mlx4_dev *dev) int mlx4_init_qp_table(struct mlx4_dev *dev)
@ -342,7 +344,8 @@ int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
return PTR_ERR(mailbox); return PTR_ERR(mailbox);
err = mlx4_cmd_box(dev, 0, mailbox->dma, qp->qpn, 0, err = mlx4_cmd_box(dev, 0, mailbox->dma, qp->qpn, 0,
MLX4_CMD_QUERY_QP, MLX4_CMD_TIME_CLASS_A); MLX4_CMD_QUERY_QP, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_WRAPPED);
if (!err) if (!err)
memcpy(context, mailbox->buf + 8, sizeof *context); memcpy(context, mailbox->buf + 8, sizeof *context);

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@ -45,7 +45,8 @@ int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
int err = 0; int err = 0;
err = mlx4_cmd_imm(dev, 0, &out_param, port, 0, err = mlx4_cmd_imm(dev, 0, &out_param, port, 0,
MLX4_CMD_SENSE_PORT, MLX4_CMD_TIME_CLASS_B); MLX4_CMD_SENSE_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
if (err) { if (err) {
mlx4_err(dev, "Sense command failed for port: %d\n", port); mlx4_err(dev, "Sense command failed for port: %d\n", port);
return err; return err;

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@ -86,7 +86,7 @@ static int mlx4_SW2HW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
int srq_num) int srq_num)
{ {
return mlx4_cmd(dev, mailbox->dma, srq_num, 0, MLX4_CMD_SW2HW_SRQ, return mlx4_cmd(dev, mailbox->dma, srq_num, 0, MLX4_CMD_SW2HW_SRQ,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
} }
static int mlx4_HW2SW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, static int mlx4_HW2SW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
@ -94,20 +94,20 @@ static int mlx4_HW2SW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
{ {
return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, srq_num, return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, srq_num,
mailbox ? 0 : 1, MLX4_CMD_HW2SW_SRQ, mailbox ? 0 : 1, MLX4_CMD_HW2SW_SRQ,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
} }
static int mlx4_ARM_SRQ(struct mlx4_dev *dev, int srq_num, int limit_watermark) static int mlx4_ARM_SRQ(struct mlx4_dev *dev, int srq_num, int limit_watermark)
{ {
return mlx4_cmd(dev, limit_watermark, srq_num, 0, MLX4_CMD_ARM_SRQ, return mlx4_cmd(dev, limit_watermark, srq_num, 0, MLX4_CMD_ARM_SRQ,
MLX4_CMD_TIME_CLASS_B); MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
} }
static int mlx4_QUERY_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, static int mlx4_QUERY_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int srq_num) int srq_num)
{ {
return mlx4_cmd_box(dev, 0, mailbox->dma, srq_num, 0, MLX4_CMD_QUERY_SRQ, return mlx4_cmd_box(dev, 0, mailbox->dma, srq_num, 0, MLX4_CMD_QUERY_SRQ,
MLX4_CMD_TIME_CLASS_A); MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
} }
int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcd, int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcd,

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@ -173,6 +173,11 @@ enum {
MLX4_SET_PORT_GID_TABLE = 0x5, MLX4_SET_PORT_GID_TABLE = 0x5,
}; };
enum {
MLX4_CMD_WRAPPED,
MLX4_CMD_NATIVE
};
struct mlx4_dev; struct mlx4_dev;
struct mlx4_cmd_mailbox { struct mlx4_cmd_mailbox {
@ -182,23 +187,24 @@ struct mlx4_cmd_mailbox {
int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
int out_is_imm, u32 in_modifier, u8 op_modifier, int out_is_imm, u32 in_modifier, u8 op_modifier,
u16 op, unsigned long timeout); u16 op, unsigned long timeout, int native);
/* Invoke a command with no output parameter */ /* Invoke a command with no output parameter */
static inline int mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u32 in_modifier, static inline int mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u32 in_modifier,
u8 op_modifier, u16 op, unsigned long timeout) u8 op_modifier, u16 op, unsigned long timeout,
int native)
{ {
return __mlx4_cmd(dev, in_param, NULL, 0, in_modifier, return __mlx4_cmd(dev, in_param, NULL, 0, in_modifier,
op_modifier, op, timeout); op_modifier, op, timeout, native);
} }
/* Invoke a command with an output mailbox */ /* Invoke a command with an output mailbox */
static inline int mlx4_cmd_box(struct mlx4_dev *dev, u64 in_param, u64 out_param, static inline int mlx4_cmd_box(struct mlx4_dev *dev, u64 in_param, u64 out_param,
u32 in_modifier, u8 op_modifier, u16 op, u32 in_modifier, u8 op_modifier, u16 op,
unsigned long timeout) unsigned long timeout, int native)
{ {
return __mlx4_cmd(dev, in_param, &out_param, 0, in_modifier, return __mlx4_cmd(dev, in_param, &out_param, 0, in_modifier,
op_modifier, op, timeout); op_modifier, op, timeout, native);
} }
/* /*
@ -208,10 +214,10 @@ static inline int mlx4_cmd_box(struct mlx4_dev *dev, u64 in_param, u64 out_param
*/ */
static inline int mlx4_cmd_imm(struct mlx4_dev *dev, u64 in_param, u64 *out_param, static inline int mlx4_cmd_imm(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
u32 in_modifier, u8 op_modifier, u16 op, u32 in_modifier, u8 op_modifier, u16 op,
unsigned long timeout) unsigned long timeout, int native)
{ {
return __mlx4_cmd(dev, in_param, out_param, 1, in_modifier, return __mlx4_cmd(dev, in_param, out_param, 1, in_modifier,
op_modifier, op, timeout); op_modifier, op, timeout, native);
} }
struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev); struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev);