forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
linux-pinenote/drivers/net/ethernet/mellanox/mlx4/fw.c
Ido Shamay c3f2511fea net/mlx4: Cache line CQE/EQE stride fixes 
This commit contains 2 fixes for the 128B CQE/EQE stride feaure.
Wei found that mlx4_QUERY_HCA function marked the wrong capability
in flags (64B CQE/EQE), when CQE/EQE stride feature was enabled.
Also added small fix in initial CQE ownership bit assignment, when CQE
is size is not default 32B.

Fixes: 77507aa24 (net/mlx4: Enable CQE/EQE stride support)
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-16 15:23:53 -05:00

2565 lines
84 KiB
C
Raw Blame History

/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
* Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/etherdevice.h>
#include <linux/mlx4/cmd.h>
#include <linux/module.h>
#include <linux/cache.h>
#include "fw.h"
#include "icm.h"
enum {
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);
extern void __buggy_use_of_MLX4_PUT(void);
static bool enable_qos;
module_param(enable_qos, bool, 0444);
MODULE_PARM_DESC(enable_qos, "Enable Quality of Service support in the HCA (default: off)");
#define MLX4_GET(dest, source, offset) \
do { \
void *__p = (char *) (source) + (offset); \
switch (sizeof (dest)) { \
case 1: (dest) = *(u8 *) __p; break; \
case 2: (dest) = be16_to_cpup(__p); break; \
case 4: (dest) = be32_to_cpup(__p); break; \
case 8: (dest) = be64_to_cpup(__p); break; \
default: __buggy_use_of_MLX4_GET(); \
} \
} while (0)
#define MLX4_PUT(dest, source, offset) \
do { \
void *__d = ((char *) (dest) + (offset)); \
switch (sizeof(source)) { \
case 1: *(u8 *) __d = (source); break; \
case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
default: __buggy_use_of_MLX4_PUT(); \
} \
} while (0)
static void dump_dev_cap_flags(struct mlx4_dev *dev, u64 flags)
{
static const char *fname[] = {
[ 0] = "RC transport",
[ 1] = "UC transport",
[ 2] = "UD transport",
[ 3] = "XRC transport",
[ 4] = "reliable multicast",
[ 5] = "FCoIB support",
[ 6] = "SRQ support",
[ 7] = "IPoIB checksum offload",
[ 8] = "P_Key violation counter",
[ 9] = "Q_Key violation counter",
[10] = "VMM",
[12] = "Dual Port Different Protocol (DPDP) support",
[15] = "Big LSO headers",
[16] = "MW support",
[17] = "APM support",
[18] = "Atomic ops support",
[19] = "Raw multicast support",
[20] = "Address vector port checking support",
[21] = "UD multicast support",
[24] = "Demand paging support",
[25] = "Router support",
[30] = "IBoE support",
[32] = "Unicast loopback support",
[34] = "FCS header control",
[38] = "Wake On LAN support",
[40] = "UDP RSS support",
[41] = "Unicast VEP steering support",
[42] = "Multicast VEP steering support",
[48] = "Counters support",
[53] = "Port ETS Scheduler support",
[55] = "Port link type sensing support",
[59] = "Port management change event support",
[61] = "64 byte EQE support",
[62] = "64 byte CQE support",
};
int i;
mlx4_dbg(dev, "DEV_CAP flags:\n");
for (i = 0; i < ARRAY_SIZE(fname); ++i)
if (fname[i] && (flags & (1LL << i)))
mlx4_dbg(dev, " %s\n", fname[i]);
}
static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
{
static const char * const fname[] = {
[0] = "RSS support",
[1] = "RSS Toeplitz Hash Function support",
[2] = "RSS XOR Hash Function support",
[3] = "Device managed flow steering support",
[4] = "Automatic MAC reassignment support",
[5] = "Time stamping support",
[6] = "VST (control vlan insertion/stripping) support",
[7] = "FSM (MAC anti-spoofing) support",
[8] = "Dynamic QP updates support",
[9] = "Device managed flow steering IPoIB support",
[10] = "TCP/IP offloads/flow-steering for VXLAN support",
[11] = "MAD DEMUX (Secure-Host) support",
[12] = "Large cache line (>64B) CQE stride support",
[13] = "Large cache line (>64B) EQE stride support",
[14] = "Ethernet protocol control support",
[15] = "Ethernet Backplane autoneg support",
[16] = "CONFIG DEV support",
[17] = "Asymmetric EQs support",
[18] = "More than 80 VFs support",
[19] = "Performance optimized for limited rule configuration flow steering support"
};
int i;
for (i = 0; i < ARRAY_SIZE(fname); ++i)
if (fname[i] && (flags & (1LL << i)))
mlx4_dbg(dev, " %s\n", fname[i]);
}
int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
{
struct mlx4_cmd_mailbox *mailbox;
u32 *inbox;
int err = 0;
#define MOD_STAT_CFG_IN_SIZE 0x100
#define MOD_STAT_CFG_PG_SZ_M_OFFSET 0x002
#define MOD_STAT_CFG_PG_SZ_OFFSET 0x003
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
inbox = mailbox->buf;
MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_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,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave)
{
struct mlx4_cmd_mailbox *mailbox;
u32 *outbox;
u8 in_modifier;
u8 field;
u16 field16;
int err;
#define QUERY_FUNC_BUS_OFFSET 0x00
#define QUERY_FUNC_DEVICE_OFFSET 0x01
#define QUERY_FUNC_FUNCTION_OFFSET 0x01
#define QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET 0x03
#define QUERY_FUNC_RSVD_EQS_OFFSET 0x04
#define QUERY_FUNC_MAX_EQ_OFFSET 0x06
#define QUERY_FUNC_RSVD_UARS_OFFSET 0x0b
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
in_modifier = slave;
err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, 0,
MLX4_CMD_QUERY_FUNC,
MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (err)
goto out;
MLX4_GET(field, outbox, QUERY_FUNC_BUS_OFFSET);
func->bus = field & 0xf;
MLX4_GET(field, outbox, QUERY_FUNC_DEVICE_OFFSET);
func->device = field & 0xf1;
MLX4_GET(field, outbox, QUERY_FUNC_FUNCTION_OFFSET);
func->function = field & 0x7;
MLX4_GET(field, outbox, QUERY_FUNC_PHYSICAL_FUNCTION_OFFSET);
func->physical_function = field & 0xf;
MLX4_GET(field16, outbox, QUERY_FUNC_RSVD_EQS_OFFSET);
func->rsvd_eqs = field16 & 0xffff;
MLX4_GET(field16, outbox, QUERY_FUNC_MAX_EQ_OFFSET);
func->max_eq = field16 & 0xffff;
MLX4_GET(field, outbox, QUERY_FUNC_RSVD_UARS_OFFSET);
func->rsvd_uars = field & 0x0f;
mlx4_dbg(dev, "Bus: %d, Device: %d, Function: %d, Physical function: %d, Max EQs: %d, Reserved EQs: %d, Reserved UARs: %d\n",
func->bus, func->device, func->function, func->physical_function,
func->max_eq, func->rsvd_eqs, func->rsvd_uars);
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd)
{
struct mlx4_priv *priv = mlx4_priv(dev);
u8 field, port;
u32 size, proxy_qp, qkey;
int err = 0;
struct mlx4_func func;
#define QUERY_FUNC_CAP_FLAGS_OFFSET 0x0
#define QUERY_FUNC_CAP_NUM_PORTS_OFFSET 0x1
#define QUERY_FUNC_CAP_PF_BHVR_OFFSET 0x4
#define QUERY_FUNC_CAP_FMR_OFFSET 0x8
#define QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP 0x10
#define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP 0x14
#define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP 0x18
#define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP 0x20
#define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP 0x24
#define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP 0x28
#define QUERY_FUNC_CAP_MAX_EQ_OFFSET 0x2c
#define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET 0x30
#define QUERY_FUNC_CAP_QP_QUOTA_OFFSET 0x50
#define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET 0x54
#define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET 0x58
#define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET 0x60
#define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET 0x64
#define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET 0x68
#define QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET 0x6c
#define QUERY_FUNC_CAP_FMR_FLAG 0x80
#define QUERY_FUNC_CAP_FLAG_RDMA 0x40
#define QUERY_FUNC_CAP_FLAG_ETH 0x80
#define QUERY_FUNC_CAP_FLAG_QUOTAS 0x10
#define QUERY_FUNC_CAP_FLAG_VALID_MAILBOX 0x04
#define QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG (1UL << 31)
#define QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG (1UL << 30)
/* when opcode modifier = 1 */
#define QUERY_FUNC_CAP_PHYS_PORT_OFFSET 0x3
#define QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET 0x4
#define QUERY_FUNC_CAP_FLAGS0_OFFSET 0x8
#define QUERY_FUNC_CAP_FLAGS1_OFFSET 0xc
#define QUERY_FUNC_CAP_QP0_TUNNEL 0x10
#define QUERY_FUNC_CAP_QP0_PROXY 0x14
#define QUERY_FUNC_CAP_QP1_TUNNEL 0x18
#define QUERY_FUNC_CAP_QP1_PROXY 0x1c
#define QUERY_FUNC_CAP_PHYS_PORT_ID 0x28
#define QUERY_FUNC_CAP_FLAGS1_FORCE_MAC 0x40
#define QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN 0x80
#define QUERY_FUNC_CAP_FLAGS1_NIC_INFO 0x10
#define QUERY_FUNC_CAP_VF_ENABLE_QP0 0x08
#define QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID 0x80
#define QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS (1 << 31)
if (vhcr->op_modifier == 1) {
struct mlx4_active_ports actv_ports =
mlx4_get_active_ports(dev, slave);
int converted_port = mlx4_slave_convert_port(
dev, slave, vhcr->in_modifier);
if (converted_port < 0)
return -EINVAL;
vhcr->in_modifier = converted_port;
/* phys-port = logical-port */
field = vhcr->in_modifier -
find_first_bit(actv_ports.ports, dev->caps.num_ports);
MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
port = vhcr->in_modifier;
proxy_qp = dev->phys_caps.base_proxy_sqpn + 8 * slave + port - 1;
/* Set nic_info bit to mark new fields support */
field = QUERY_FUNC_CAP_FLAGS1_NIC_INFO;
if (mlx4_vf_smi_enabled(dev, slave, port) &&
!mlx4_get_parav_qkey(dev, proxy_qp, &qkey)) {
field |= QUERY_FUNC_CAP_VF_ENABLE_QP0;
MLX4_PUT(outbox->buf, qkey,
QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
}
MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS1_OFFSET);
/* size is now the QP number */
size = dev->phys_caps.base_tunnel_sqpn + 8 * slave + port - 1;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_TUNNEL);
size += 2;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_TUNNEL);
MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP0_PROXY);
proxy_qp += 2;
MLX4_PUT(outbox->buf, proxy_qp, QUERY_FUNC_CAP_QP1_PROXY);
MLX4_PUT(outbox->buf, dev->caps.phys_port_id[vhcr->in_modifier],
QUERY_FUNC_CAP_PHYS_PORT_ID);
} else if (vhcr->op_modifier == 0) {
struct mlx4_active_ports actv_ports =
mlx4_get_active_ports(dev, slave);
/* enable rdma and ethernet interfaces, and new quota locations */
field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA |
QUERY_FUNC_CAP_FLAG_QUOTAS | QUERY_FUNC_CAP_FLAG_VALID_MAILBOX);
MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS_OFFSET);
field = min(
bitmap_weight(actv_ports.ports, dev->caps.num_ports),
dev->caps.num_ports);
MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
size = dev->caps.function_caps; /* set PF behaviours */
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
field = 0; /* protected FMR support not available as yet */
MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FMR_OFFSET);
size = priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[slave];
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
size = dev->caps.num_qps;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
size = priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[slave];
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
size = dev->caps.num_srqs;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
size = priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[slave];
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
size = dev->caps.num_cqs;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) ||
mlx4_QUERY_FUNC(dev, &func, slave)) {
size = vhcr->in_modifier &
QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
dev->caps.num_eqs :
rounddown_pow_of_two(dev->caps.num_eqs);
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
size = dev->caps.reserved_eqs;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
} else {
size = vhcr->in_modifier &
QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS ?
func.max_eq :
rounddown_pow_of_two(func.max_eq);
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
size = func.rsvd_eqs;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
}
size = priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[slave];
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
size = dev->caps.num_mpts;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
size = priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[slave];
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
size = dev->caps.num_mtts;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
size = dev->caps.num_mgms + dev->caps.num_amgms;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
size = QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG |
QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG;
MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
} else
err = -EINVAL;
return err;
}
int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u8 gen_or_port,
struct mlx4_func_cap *func_cap)
{
struct mlx4_cmd_mailbox *mailbox;
u32 *outbox;
u8 field, op_modifier;
u32 size, qkey;
int err = 0, quotas = 0;
u32 in_modifier;
op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
in_modifier = op_modifier ? gen_or_port :
QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
err = mlx4_cmd_box(dev, 0, mailbox->dma, in_modifier, op_modifier,
MLX4_CMD_QUERY_FUNC_CAP,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
if (err)
goto out;
outbox = mailbox->buf;
if (!op_modifier) {
MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS_OFFSET);
if (!(field & (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA))) {
mlx4_err(dev, "The host supports neither eth nor rdma interfaces\n");
err = -EPROTONOSUPPORT;
goto out;
}
func_cap->flags = field;
quotas = !!(func_cap->flags & QUERY_FUNC_CAP_FLAG_QUOTAS);
MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
func_cap->num_ports = field;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
func_cap->pf_context_behaviour = size;
if (quotas) {
MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
func_cap->qp_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
func_cap->srq_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
func_cap->cq_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
func_cap->mpt_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
func_cap->mtt_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
func_cap->mcg_quota = size & 0xFFFFFF;
} else {
MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
func_cap->qp_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
func_cap->srq_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
func_cap->cq_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
func_cap->mpt_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
func_cap->mtt_quota = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
func_cap->mcg_quota = size & 0xFFFFFF;
}
MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
func_cap->max_eq = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
func_cap->reserved_eq = size & 0xFFFFFF;
func_cap->extra_flags = 0;
/* Mailbox data from 0x6c and onward should only be treated if
* QUERY_FUNC_CAP_FLAG_VALID_MAILBOX is set in func_cap->flags
*/
if (func_cap->flags & QUERY_FUNC_CAP_FLAG_VALID_MAILBOX) {
MLX4_GET(size, outbox, QUERY_FUNC_CAP_EXTRA_FLAGS_OFFSET);
if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_BF_QP_ALLOC_FLAG)
func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_BF_RES_QP;
if (size & QUERY_FUNC_CAP_EXTRA_FLAGS_A0_QP_ALLOC_FLAG)
func_cap->extra_flags |= MLX4_QUERY_FUNC_FLAGS_A0_RES_QP;
}
goto out;
}
/* logical port query */
if (gen_or_port > dev->caps.num_ports) {
err = -EINVAL;
goto out;
}
MLX4_GET(func_cap->flags1, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_ETH) {
if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN) {
mlx4_err(dev, "VLAN is enforced on this port\n");
err = -EPROTONOSUPPORT;
goto out;
}
if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_MAC) {
mlx4_err(dev, "Force mac is enabled on this port\n");
err = -EPROTONOSUPPORT;
goto out;
}
} else if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_IB) {
MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS0_OFFSET);
if (field & QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID) {
mlx4_err(dev, "phy_wqe_gid is enforced on this ib port\n");
err = -EPROTONOSUPPORT;
goto out;
}
}
MLX4_GET(field, outbox, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
func_cap->physical_port = field;
if (func_cap->physical_port != gen_or_port) {
err = -ENOSYS;
goto out;
}
if (func_cap->flags1 & QUERY_FUNC_CAP_VF_ENABLE_QP0) {
MLX4_GET(qkey, outbox, QUERY_FUNC_CAP_PRIV_VF_QKEY_OFFSET);
func_cap->qp0_qkey = qkey;
} else {
func_cap->qp0_qkey = 0;
}
MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_TUNNEL);
func_cap->qp0_tunnel_qpn = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_PROXY);
func_cap->qp0_proxy_qpn = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_TUNNEL);
func_cap->qp1_tunnel_qpn = size & 0xFFFFFF;
MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_PROXY);
func_cap->qp1_proxy_qpn = size & 0xFFFFFF;
if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_NIC_INFO)
MLX4_GET(func_cap->phys_port_id, outbox,
QUERY_FUNC_CAP_PHYS_PORT_ID);
/* All other resources are allocated by the master, but we still report
* 'num' and 'reserved' capabilities as follows:
* - num remains the maximum resource index
* - 'num - reserved' is the total available objects of a resource, but
* resource indices may be less than 'reserved'
* TODO: set per-resource quotas */
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
{
struct mlx4_cmd_mailbox *mailbox;
u32 *outbox;
u8 field;
u32 field32, flags, ext_flags;
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
#define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET 0x11
#define QUERY_DEV_CAP_RSVD_QP_OFFSET 0x12
#define QUERY_DEV_CAP_MAX_QP_OFFSET 0x13
#define QUERY_DEV_CAP_RSVD_SRQ_OFFSET 0x14
#define QUERY_DEV_CAP_MAX_SRQ_OFFSET 0x15
#define QUERY_DEV_CAP_RSVD_EEC_OFFSET 0x16
#define QUERY_DEV_CAP_MAX_EEC_OFFSET 0x17
#define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET 0x19
#define QUERY_DEV_CAP_RSVD_CQ_OFFSET 0x1a
#define QUERY_DEV_CAP_MAX_CQ_OFFSET 0x1b
#define QUERY_DEV_CAP_MAX_MPT_OFFSET 0x1d
#define QUERY_DEV_CAP_RSVD_EQ_OFFSET 0x1e
#define QUERY_DEV_CAP_MAX_EQ_OFFSET 0x1f
#define QUERY_DEV_CAP_RSVD_MTT_OFFSET 0x20
#define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET 0x21
#define QUERY_DEV_CAP_RSVD_MRW_OFFSET 0x22
#define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET 0x23
#define QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET 0x26
#define QUERY_DEV_CAP_MAX_AV_OFFSET 0x27
#define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET 0x29
#define QUERY_DEV_CAP_MAX_RES_QP_OFFSET 0x2b
#define QUERY_DEV_CAP_MAX_GSO_OFFSET 0x2d
#define QUERY_DEV_CAP_RSS_OFFSET 0x2e
#define QUERY_DEV_CAP_MAX_RDMA_OFFSET 0x2f
#define QUERY_DEV_CAP_RSZ_SRQ_OFFSET 0x33
#define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
#define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
#define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
#define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
#define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
#define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
#define QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET 0x3e
#define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
#define QUERY_DEV_CAP_EXT_FLAGS_OFFSET 0x40
#define QUERY_DEV_CAP_FLAGS_OFFSET 0x44
#define QUERY_DEV_CAP_RSVD_UAR_OFFSET 0x48
#define QUERY_DEV_CAP_UAR_SZ_OFFSET 0x49
#define QUERY_DEV_CAP_PAGE_SZ_OFFSET 0x4b
#define QUERY_DEV_CAP_BF_OFFSET 0x4c
#define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET 0x4d
#define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET 0x4e
#define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET 0x4f
#define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET 0x51
#define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET 0x52
#define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET 0x55
#define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET 0x56
#define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET 0x61
#define QUERY_DEV_CAP_RSVD_MCG_OFFSET 0x62
#define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
#define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
#define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
#define QUERY_DEV_CAP_RSVD_XRC_OFFSET 0x66
#define QUERY_DEV_CAP_MAX_XRC_OFFSET 0x67
#define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
#define QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET 0x70
#define QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET 0x74
#define QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET 0x76
#define QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET 0x77
#define QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE 0x7a
#define QUERY_DEV_CAP_ETH_PROT_CTRL_OFFSET 0x7a
#define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
#define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
#define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET 0x84
#define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET 0x86
#define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET 0x88
#define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET 0x8a
#define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET 0x8c
#define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e
#define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90
#define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92
#define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94
#define QUERY_DEV_CAP_CONFIG_DEV_OFFSET 0x94
#define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98
#define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0
#define QUERY_DEV_CAP_ETH_BACKPL_OFFSET 0x9c
#define QUERY_DEV_CAP_FW_REASSIGN_MAC 0x9d
#define QUERY_DEV_CAP_VXLAN 0x9e
#define QUERY_DEV_CAP_MAD_DEMUX_OFFSET 0xb0
#define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET 0xa8
#define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET 0xac
dev_cap->flags2 = 0;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err)
goto out;
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
dev_cap->reserved_qps = 1 << (field & 0xf);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
dev_cap->max_qps = 1 << (field & 0x1f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
dev_cap->reserved_srqs = 1 << (field >> 4);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
dev_cap->max_srqs = 1 << (field & 0x1f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
dev_cap->max_cq_sz = 1 << field;
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
dev_cap->reserved_cqs = 1 << (field & 0xf);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
dev_cap->max_cqs = 1 << (field & 0x1f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
dev_cap->max_mpts = 1 << (field & 0x3f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
dev_cap->reserved_eqs = 1 << (field & 0xf);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
dev_cap->max_eqs = 1 << (field & 0xf);
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
dev_cap->reserved_mtts = 1 << (field >> 4);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET);
dev_cap->max_mrw_sz = 1 << field;
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
dev_cap->reserved_mrws = 1 << (field & 0xf);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET);
dev_cap->max_mtt_seg = 1 << (field & 0x3f);
MLX4_GET(size, outbox, QUERY_DEV_CAP_NUM_SYS_EQ_OFFSET);
dev_cap->num_sys_eqs = size & 0xfff;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GSO_OFFSET);
field &= 0x1f;
if (!field)
dev_cap->max_gso_sz = 0;
else
dev_cap->max_gso_sz = 1 << field;
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSS_OFFSET);
if (field & 0x20)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_XOR;
if (field & 0x10)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS_TOP;
field &= 0xf;
if (field) {
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_RSS;
dev_cap->max_rss_tbl_sz = 1 << field;
} else
dev_cap->max_rss_tbl_sz = 0;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
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_VL_PORT_OFFSET);
dev_cap->num_ports = field & 0xf;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
dev_cap->max_msg_sz = 1 << (field & 0x1f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
if (field & 0x80)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FS_EN;
dev_cap->fs_log_max_ucast_qp_range_size = field & 0x1f;
MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
if (field & 0x80)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_DMFS_IPOIB;
MLX4_GET(field, outbox, QUERY_DEV_CAP_FLOW_STEERING_MAX_QP_OFFSET);
dev_cap->fs_max_num_qp_per_entry = field;
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_CQ_TS_SUPPORT_OFFSET);
if (field & 0x80)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_TS;
MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
dev_cap->flags = flags | (u64)ext_flags << 32;
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
dev_cap->reserved_uars = field >> 4;
MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
dev_cap->min_page_sz = 1 << field;
MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
if (field & 0x80) {
MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
dev_cap->bf_reg_size = 1 << (field & 0x1f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
field = 3;
dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
} else {
dev_cap->bf_reg_size = 0;
}
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
dev_cap->max_sq_sg = field;
MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
dev_cap->max_sq_desc_sz = size;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
dev_cap->max_qp_per_mcg = 1 << field;
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
dev_cap->reserved_mgms = field & 0xf;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
dev_cap->max_mcgs = 1 << field;
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
dev_cap->reserved_pds = field >> 4;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
dev_cap->max_pds = 1 << (field & 0x3f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
dev_cap->reserved_xrcds = field >> 4;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_XRC_OFFSET);
dev_cap->max_xrcds = 1 << (field & 0x1f);
MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
dev_cap->rdmarc_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
dev_cap->qpc_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
dev_cap->aux_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
dev_cap->altc_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
dev_cap->eqc_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
dev_cap->cqc_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
dev_cap->srq_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
dev_cap->cmpt_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
dev_cap->mtt_entry_sz = size;
MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
dev_cap->dmpt_entry_sz = size;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
dev_cap->max_srq_sz = 1 << field;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
dev_cap->max_qp_sz = 1 << field;
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
dev_cap->resize_srq = field & 1;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
dev_cap->max_rq_sg = field;
MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
dev_cap->max_rq_desc_sz = size;
MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_EQ_CACHE_LINE_STRIDE);
if (field & (1 << 5))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL;
if (field & (1 << 6))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
if (field & (1 << 7))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
MLX4_GET(dev_cap->bmme_flags, outbox,
QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
MLX4_GET(field, outbox, QUERY_DEV_CAP_CONFIG_DEV_OFFSET);
if (field & 0x20)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_CONFIG_DEV;
MLX4_GET(dev_cap->reserved_lkey, outbox,
QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
MLX4_GET(field32, outbox, QUERY_DEV_CAP_ETH_BACKPL_OFFSET);
if (field32 & (1 << 0))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP;
MLX4_GET(field, outbox, QUERY_DEV_CAP_FW_REASSIGN_MAC);
if (field & 1<<6)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN;
MLX4_GET(field, outbox, QUERY_DEV_CAP_VXLAN);
if (field & 1<<3)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS;
MLX4_GET(dev_cap->max_icm_sz, outbox,
QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
MLX4_GET(dev_cap->max_counters, outbox,
QUERY_DEV_CAP_MAX_COUNTERS_OFFSET);
MLX4_GET(field32, outbox,
QUERY_DEV_CAP_MAD_DEMUX_OFFSET);
if (field32 & (1 << 0))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_MAD_DEMUX;
MLX4_GET(dev_cap->dmfs_high_rate_qpn_base, outbox,
QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET);
dev_cap->dmfs_high_rate_qpn_base &= MGM_QPN_MASK;
MLX4_GET(dev_cap->dmfs_high_rate_qpn_range, outbox,
QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET);
dev_cap->dmfs_high_rate_qpn_range &= MGM_QPN_MASK;
MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
if (field32 & (1 << 16))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;
if (field32 & (1 << 26))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VLAN_CONTROL;
if (field32 & (1 << 20))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_FSM;
if (field32 & (1 << 21))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_80_VFS;
for (i = 1; i <= dev_cap->num_ports; i++) {
err = mlx4_QUERY_PORT(dev, i, dev_cap->port_cap + i);
if (err)
goto out;
}
/*
* Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
* we can't use any EQs whose doorbell falls on that page,
* even if the EQ itself isn't reserved.
*/
if (dev_cap->num_sys_eqs == 0)
dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
dev_cap->reserved_eqs);
else
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SYS_EQS;
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
void mlx4_dev_cap_dump(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
{
if (dev_cap->bf_reg_size > 0)
mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
else
mlx4_dbg(dev, "BlueFlame not available\n");
mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
dev_cap->bmme_flags, dev_cap->reserved_lkey);
mlx4_dbg(dev, "Max ICM size %lld MB\n",
(unsigned long long) dev_cap->max_icm_sz >> 20);
mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
mlx4_dbg(dev, "Num sys EQs: %d, max EQs: %d, reserved EQs: %d, entry size: %d\n",
dev_cap->num_sys_eqs, dev_cap->max_eqs, dev_cap->reserved_eqs,
dev_cap->eqc_entry_sz);
mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
dev_cap->reserved_mrws, dev_cap->reserved_mtts);
mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
dev_cap->max_pds, dev_cap->reserved_mgms);
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->port_cap[1].ib_mtu,
dev_cap->port_cap[1].max_port_width);
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",
dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
mlx4_dbg(dev, "Max GSO size: %d\n", dev_cap->max_gso_sz);
mlx4_dbg(dev, "Max counters: %d\n", dev_cap->max_counters);
mlx4_dbg(dev, "Max RSS Table size: %d\n", dev_cap->max_rss_tbl_sz);
mlx4_dbg(dev, "DMFS high rate steer QPn base: %d\n",
dev_cap->dmfs_high_rate_qpn_base);
mlx4_dbg(dev, "DMFS high rate steer QPn range: %d\n",
dev_cap->dmfs_high_rate_qpn_range);
dump_dev_cap_flags(dev, dev_cap->flags);
dump_dev_cap_flags2(dev, dev_cap->flags2);
}
int mlx4_QUERY_PORT(struct mlx4_dev *dev, int port, struct mlx4_port_cap *port_cap)
{
struct mlx4_cmd_mailbox *mailbox;
u32 *outbox;
u8 field;
u32 field32;
int err;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (err)
goto out;
MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
port_cap->max_vl = field >> 4;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
port_cap->ib_mtu = field >> 4;
port_cap->max_port_width = field & 0xf;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
port_cap->max_gids = 1 << (field & 0xf);
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
port_cap->max_pkeys = 1 << (field & 0xf);
} else {
#define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
#define QUERY_PORT_MTU_OFFSET 0x01
#define QUERY_PORT_ETH_MTU_OFFSET 0x02
#define QUERY_PORT_WIDTH_OFFSET 0x06
#define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
#define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
#define QUERY_PORT_MAX_VL_OFFSET 0x0b
#define QUERY_PORT_MAC_OFFSET 0x10
#define QUERY_PORT_TRANS_VENDOR_OFFSET 0x18
#define QUERY_PORT_WAVELENGTH_OFFSET 0x1c
#define QUERY_PORT_TRANS_CODE_OFFSET 0x20
err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0, MLX4_CMD_QUERY_PORT,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
if (err)
goto out;
MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
port_cap->supported_port_types = field & 3;
port_cap->suggested_type = (field >> 3) & 1;
port_cap->default_sense = (field >> 4) & 1;
port_cap->dmfs_optimized_state = (field >> 5) & 1;
MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
port_cap->ib_mtu = field & 0xf;
MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
port_cap->max_port_width = field & 0xf;
MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
port_cap->max_gids = 1 << (field >> 4);
port_cap->max_pkeys = 1 << (field & 0xf);
MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
port_cap->max_vl = field & 0xf;
MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
port_cap->log_max_macs = field & 0xf;
port_cap->log_max_vlans = field >> 4;
MLX4_GET(port_cap->eth_mtu, outbox, QUERY_PORT_ETH_MTU_OFFSET);
MLX4_GET(port_cap->def_mac, outbox, QUERY_PORT_MAC_OFFSET);
MLX4_GET(field32, outbox, QUERY_PORT_TRANS_VENDOR_OFFSET);
port_cap->trans_type = field32 >> 24;
port_cap->vendor_oui = field32 & 0xffffff;
MLX4_GET(port_cap->wavelength, outbox, QUERY_PORT_WAVELENGTH_OFFSET);
MLX4_GET(port_cap->trans_code, outbox, QUERY_PORT_TRANS_CODE_OFFSET);
}
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
#define DEV_CAP_EXT_2_FLAG_VLAN_CONTROL (1 << 26)
#define DEV_CAP_EXT_2_FLAG_80_VFS (1 << 21)
#define DEV_CAP_EXT_2_FLAG_FSM (1 << 20)
int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd)
{
u64 flags;
int err = 0;
u8 field;
u32 bmme_flags, field32;
int real_port;
int slave_port;
int first_port;
struct mlx4_active_ports actv_ports;
err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err)
return err;
/* add port mng change event capability and disable mw type 1
* unconditionally to slaves
*/
MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV;
flags &= ~MLX4_DEV_CAP_FLAG_MEM_WINDOW;
actv_ports = mlx4_get_active_ports(dev, slave);
first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
for (slave_port = 0, real_port = first_port;
real_port < first_port +
bitmap_weight(actv_ports.ports, dev->caps.num_ports);
++real_port, ++slave_port) {
if (flags & (MLX4_DEV_CAP_FLAG_WOL_PORT1 << real_port))
flags |= MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port;
else
flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
}
for (; slave_port < dev->caps.num_ports; ++slave_port)
flags &= ~(MLX4_DEV_CAP_FLAG_WOL_PORT1 << slave_port);
MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VL_PORT_OFFSET);
field &= ~0x0F;
field |= bitmap_weight(actv_ports.ports, dev->caps.num_ports) & 0x0F;
MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VL_PORT_OFFSET);
/* For guests, disable timestamp */
MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
field &= 0x7f;
MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
/* For guests, disable vxlan tunneling */
MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VXLAN);
field &= 0xf7;
MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VXLAN);
/* For guests, report Blueflame disabled */
MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
field &= 0x7f;
MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET);
/* For guests, disable mw type 2 */
MLX4_GET(bmme_flags, outbox->buf, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
bmme_flags &= ~MLX4_BMME_FLAG_TYPE_2_WIN;
MLX4_PUT(outbox->buf, bmme_flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
/* turn off device-managed steering capability if not enabled */
if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) {
MLX4_GET(field, outbox->buf,
QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
field &= 0x7f;
MLX4_PUT(outbox->buf, field,
QUERY_DEV_CAP_FLOW_STEERING_RANGE_EN_OFFSET);
}
/* turn off ipoib managed steering for guests */
MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
field &= ~0x80;
MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET);
/* turn off host side virt features (VST, FSM, etc) for guests */
MLX4_GET(field32, outbox->buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
field32 &= ~(DEV_CAP_EXT_2_FLAG_VLAN_CONTROL | DEV_CAP_EXT_2_FLAG_80_VFS |
DEV_CAP_EXT_2_FLAG_FSM);
MLX4_PUT(outbox->buf, field32, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
return 0;
}
int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd)
{
struct mlx4_priv *priv = mlx4_priv(dev);
u64 def_mac;
u8 port_type;
u16 short_field;
int err;
int admin_link_state;
int port = mlx4_slave_convert_port(dev, slave,
vhcr->in_modifier & 0xFF);
#define MLX4_VF_PORT_NO_LINK_SENSE_MASK 0xE0
#define MLX4_PORT_LINK_UP_MASK 0x80
#define QUERY_PORT_CUR_MAX_PKEY_OFFSET 0x0c
#define QUERY_PORT_CUR_MAX_GID_OFFSET 0x0e
if (port < 0)
return -EINVAL;
/* Protect against untrusted guests: enforce that this is the
* QUERY_PORT general query.
*/
if (vhcr->op_modifier || vhcr->in_modifier & ~0xFF)
return -EINVAL;
vhcr->in_modifier = port;
err = mlx4_cmd_box(dev, 0, outbox->dma, vhcr->in_modifier, 0,
MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_NATIVE);
if (!err && dev->caps.function != slave) {
def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac;
MLX4_PUT(outbox->buf, def_mac, QUERY_PORT_MAC_OFFSET);
/* get port type - currently only eth is enabled */
MLX4_GET(port_type, outbox->buf,
QUERY_PORT_SUPPORTED_TYPE_OFFSET);
/* No link sensing allowed */
port_type &= MLX4_VF_PORT_NO_LINK_SENSE_MASK;
/* set port type to currently operating port type */
port_type |= (dev->caps.port_type[vhcr->in_modifier] & 0x3);
admin_link_state = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.link_state;
if (IFLA_VF_LINK_STATE_ENABLE == admin_link_state)
port_type |= MLX4_PORT_LINK_UP_MASK;
else if (IFLA_VF_LINK_STATE_DISABLE == admin_link_state)
port_type &= ~MLX4_PORT_LINK_UP_MASK;
MLX4_PUT(outbox->buf, port_type,
QUERY_PORT_SUPPORTED_TYPE_OFFSET);
if (dev->caps.port_type[vhcr->in_modifier] == MLX4_PORT_TYPE_ETH)
short_field = mlx4_get_slave_num_gids(dev, slave, port);
else
short_field = 1; /* slave max gids */
MLX4_PUT(outbox->buf, short_field,
QUERY_PORT_CUR_MAX_GID_OFFSET);
short_field = dev->caps.pkey_table_len[vhcr->in_modifier];
MLX4_PUT(outbox->buf, short_field,
QUERY_PORT_CUR_MAX_PKEY_OFFSET);
}
return err;
}
int mlx4_get_slave_pkey_gid_tbl_len(struct mlx4_dev *dev, u8 port,
int *gid_tbl_len, int *pkey_tbl_len)
{
struct mlx4_cmd_mailbox *mailbox;
u32 *outbox;
u16 field;
int err;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
err = mlx4_cmd_box(dev, 0, mailbox->dma, port, 0,
MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
if (err)
goto out;
outbox = mailbox->buf;
MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_GID_OFFSET);
*gid_tbl_len = field;
MLX4_GET(field, outbox, QUERY_PORT_CUR_MAX_PKEY_OFFSET);
*pkey_tbl_len = field;
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
EXPORT_SYMBOL(mlx4_get_slave_pkey_gid_tbl_len);
int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
{
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_icm_iter iter;
__be64 *pages;
int lg;
int nent = 0;
int i;
int err = 0;
int ts = 0, tc = 0;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
pages = mailbox->buf;
for (mlx4_icm_first(icm, &iter);
!mlx4_icm_last(&iter);
mlx4_icm_next(&iter)) {
/*
* We have to pass pages that are aligned to their
* size, so find the least significant 1 in the
* address or size and use that as our log2 size.
*/
lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
if (lg < MLX4_ICM_PAGE_SHIFT) {
mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx)\n",
MLX4_ICM_PAGE_SIZE,
(unsigned long long) mlx4_icm_addr(&iter),
mlx4_icm_size(&iter));
err = -EINVAL;
goto out;
}
for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
if (virt != -1) {
pages[nent * 2] = cpu_to_be64(virt);
virt += 1 << lg;
}
pages[nent * 2 + 1] =
cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
(lg - MLX4_ICM_PAGE_SHIFT));
ts += 1 << (lg - 10);
++tc;
if (++nent == MLX4_MAILBOX_SIZE / 16) {
err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_NATIVE);
if (err)
goto out;
nent = 0;
}
}
}
if (nent)
err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
if (err)
goto out;
switch (op) {
case MLX4_CMD_MAP_FA:
mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW\n", tc, ts);
break;
case MLX4_CMD_MAP_ICM_AUX:
mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux\n", tc, ts);
break;
case MLX4_CMD_MAP_ICM:
mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM\n",
tc, ts, (unsigned long long) virt - (ts << 10));
break;
}
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
{
return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
}
int mlx4_UNMAP_FA(struct mlx4_dev *dev)
{
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)
{
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)
{
struct mlx4_fw *fw = &mlx4_priv(dev)->fw;
struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
struct mlx4_cmd_mailbox *mailbox;
u32 *outbox;
int err = 0;
u64 fw_ver;
u16 cmd_if_rev;
u8 lg;
#define QUERY_FW_OUT_SIZE 0x100
#define QUERY_FW_VER_OFFSET 0x00
#define QUERY_FW_PPF_ID 0x09
#define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
#define QUERY_FW_MAX_CMD_OFFSET 0x0f
#define QUERY_FW_ERR_START_OFFSET 0x30
#define QUERY_FW_ERR_SIZE_OFFSET 0x38
#define QUERY_FW_ERR_BAR_OFFSET 0x3c
#define QUERY_FW_SIZE_OFFSET 0x00
#define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
#define QUERY_FW_CLR_INT_BAR_OFFSET 0x28
#define QUERY_FW_COMM_BASE_OFFSET 0x40
#define QUERY_FW_COMM_BAR_OFFSET 0x48
#define QUERY_FW_CLOCK_OFFSET 0x50
#define QUERY_FW_CLOCK_BAR 0x58
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err)
goto out;
MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
/*
* FW subminor version is at more significant bits than minor
* version, so swap here.
*/
dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
((fw_ver & 0xffff0000ull) >> 16) |
((fw_ver & 0x0000ffffull) << 16);
MLX4_GET(lg, outbox, QUERY_FW_PPF_ID);
dev->caps.function = lg;
if (mlx4_is_slave(dev))
goto out;
MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
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);
mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
(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 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;
mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
(int) (dev->caps.fw_ver >> 32),
(int) (dev->caps.fw_ver >> 16) & 0xffff,
(int) dev->caps.fw_ver & 0xffff,
cmd_if_rev, cmd->max_cmds);
MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
MLX4_GET(fw->catas_bar, outbox, QUERY_FW_ERR_BAR_OFFSET);
fw->catas_bar = (fw->catas_bar >> 6) * 2;
mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
(unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
MLX4_GET(fw->fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
MLX4_GET(fw->clr_int_bar, outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
MLX4_GET(fw->comm_base, outbox, QUERY_FW_COMM_BASE_OFFSET);
MLX4_GET(fw->comm_bar, outbox, QUERY_FW_COMM_BAR_OFFSET);
fw->comm_bar = (fw->comm_bar >> 6) * 2;
mlx4_dbg(dev, "Communication vector bar:%d offset:0x%llx\n",
fw->comm_bar, fw->comm_base);
mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
MLX4_GET(fw->clock_offset, outbox, QUERY_FW_CLOCK_OFFSET);
MLX4_GET(fw->clock_bar, outbox, QUERY_FW_CLOCK_BAR);
fw->clock_bar = (fw->clock_bar >> 6) * 2;
mlx4_dbg(dev, "Internal clock bar:%d offset:0x%llx\n",
fw->clock_bar, fw->clock_offset);
/*
* Round up number of system pages needed in case
* MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
*/
fw->fw_pages =
ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
(PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
(unsigned long long) fw->clr_int_base, fw->clr_int_bar);
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_QUERY_FW_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd)
{
u8 *outbuf;
int err;
outbuf = outbox->buf;
err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err)
return err;
/* for slaves, set pci PPF ID to invalid and zero out everything
* else except FW version */
outbuf[0] = outbuf[1] = 0;
memset(&outbuf[8], 0, QUERY_FW_OUT_SIZE - 8);
outbuf[QUERY_FW_PPF_ID] = MLX4_INVALID_SLAVE_ID;
return 0;
}
static void get_board_id(void *vsd, char *board_id)
{
int i;
#define VSD_OFFSET_SIG1 0x00
#define VSD_OFFSET_SIG2 0xde
#define VSD_OFFSET_MLX_BOARD_ID 0xd0
#define VSD_OFFSET_TS_BOARD_ID 0x20
#define VSD_SIGNATURE_TOPSPIN 0x5ad
memset(board_id, 0, MLX4_BOARD_ID_LEN);
if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
} else {
/*
* The board ID is a string but the firmware byte
* swaps each 4-byte word before passing it back to
* us. Therefore we need to swab it before printing.
*/
for (i = 0; i < 4; ++i)
((u32 *) board_id)[i] =
swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
}
}
int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
{
struct mlx4_cmd_mailbox *mailbox;
u32 *outbox;
int err;
#define QUERY_ADAPTER_OUT_SIZE 0x100
#define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
#define QUERY_ADAPTER_VSD_OFFSET 0x20
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err)
goto out;
MLX4_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
adapter->board_id);
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
{
struct mlx4_cmd_mailbox *mailbox;
__be32 *inbox;
int err;
static const u8 a0_dmfs_hw_steering[] = {
[MLX4_STEERING_DMFS_A0_DEFAULT] = 0,
[MLX4_STEERING_DMFS_A0_DYNAMIC] = 1,
[MLX4_STEERING_DMFS_A0_STATIC] = 2,
[MLX4_STEERING_DMFS_A0_DISABLE] = 3
};
#define INIT_HCA_IN_SIZE 0x200
#define INIT_HCA_VERSION_OFFSET 0x000
#define INIT_HCA_VERSION 2
#define INIT_HCA_VXLAN_OFFSET 0x0c
#define INIT_HCA_CACHELINE_SZ_OFFSET 0x0e
#define INIT_HCA_FLAGS_OFFSET 0x014
#define INIT_HCA_QPC_OFFSET 0x020
#define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
#define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
#define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
#define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
#define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
#define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
#define INIT_HCA_EQE_CQE_OFFSETS (INIT_HCA_QPC_OFFSET + 0x38)
#define INIT_HCA_EQE_CQE_STRIDE_OFFSET (INIT_HCA_QPC_OFFSET + 0x3b)
#define INIT_HCA_ALTC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
#define INIT_HCA_AUXC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
#define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
#define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
#define INIT_HCA_NUM_SYS_EQS_OFFSET (INIT_HCA_QPC_OFFSET + 0x6a)
#define INIT_HCA_RDMARC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
#define INIT_HCA_LOG_RD_OFFSET (INIT_HCA_QPC_OFFSET + 0x77)
#define INIT_HCA_MCAST_OFFSET 0x0c0
#define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
#define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
#define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
#define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18)
#define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
#define INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN 0x6
#define INIT_HCA_FS_PARAM_OFFSET 0x1d0
#define INIT_HCA_FS_BASE_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x00)
#define INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x12)
#define INIT_HCA_FS_A0_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x18)
#define INIT_HCA_FS_LOG_TABLE_SZ_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x1b)
#define INIT_HCA_FS_ETH_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x21)
#define INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x22)
#define INIT_HCA_FS_IB_BITS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x25)
#define INIT_HCA_FS_IB_NUM_ADDRS_OFFSET (INIT_HCA_FS_PARAM_OFFSET + 0x26)
#define INIT_HCA_TPT_OFFSET 0x0f0
#define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
#define INIT_HCA_TPT_MW_OFFSET (INIT_HCA_TPT_OFFSET + 0x08)
#define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
#define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
#define INIT_HCA_CMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x18)
#define INIT_HCA_UAR_OFFSET 0x120
#define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
#define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
inbox = mailbox->buf;
*((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
*((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
(ilog2(cache_line_size()) - 4) << 5;
#if defined(__LITTLE_ENDIAN)
*(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
#elif defined(__BIG_ENDIAN)
*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
#else
#error Host endianness not defined
#endif
/* Check port for UD address vector: */
*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
/* Enable IPoIB checksumming if we can: */
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
/* Enable QoS support if module parameter set */
if (enable_qos)
*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);
/* enable counters */
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)
*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 4);
/* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_EQE) {
*(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 29);
dev->caps.eqe_size = 64;
dev->caps.eqe_factor = 1;
} else {
dev->caps.eqe_size = 32;
dev->caps.eqe_factor = 0;
}
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_64B_CQE) {
*(inbox + INIT_HCA_EQE_CQE_OFFSETS / 4) |= cpu_to_be32(1 << 30);
dev->caps.cqe_size = 64;
dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
} else {
dev->caps.cqe_size = 32;
}
/* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
if ((dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) &&
(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE)) {
dev->caps.eqe_size = cache_line_size();
dev->caps.cqe_size = cache_line_size();
dev->caps.eqe_factor = 0;
MLX4_PUT(inbox, (u8)((ilog2(dev->caps.eqe_size) - 5) << 4 |
(ilog2(dev->caps.eqe_size) - 5)),
INIT_HCA_EQE_CQE_STRIDE_OFFSET);
/* User still need to know to support CQE > 32B */
dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
}
/* QPC/EEC/CQC/EQC/RDMARC attributes */
MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
MLX4_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
MLX4_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
MLX4_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
MLX4_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
MLX4_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
MLX4_PUT(inbox, param->altc_base, INIT_HCA_ALTC_BASE_OFFSET);
MLX4_PUT(inbox, param->auxc_base, INIT_HCA_AUXC_BASE_OFFSET);
MLX4_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
MLX4_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
MLX4_PUT(inbox, param->num_sys_eqs, INIT_HCA_NUM_SYS_EQS_OFFSET);
MLX4_PUT(inbox, param->rdmarc_base, INIT_HCA_RDMARC_BASE_OFFSET);
MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
/* steering attributes */
if (dev->caps.steering_mode ==
MLX4_STEERING_MODE_DEVICE_MANAGED) {
*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |=
cpu_to_be32(1 <<
INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN);
MLX4_PUT(inbox, param->mc_base, INIT_HCA_FS_BASE_OFFSET);
MLX4_PUT(inbox, param->log_mc_entry_sz,
INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
MLX4_PUT(inbox, param->log_mc_table_sz,
INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
/* Enable Ethernet flow steering
* with udp unicast and tcp unicast
*/
if (dev->caps.dmfs_high_steer_mode !=
MLX4_STEERING_DMFS_A0_STATIC)
MLX4_PUT(inbox,
(u8)(MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
INIT_HCA_FS_ETH_BITS_OFFSET);
MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
INIT_HCA_FS_ETH_NUM_ADDRS_OFFSET);
/* Enable IPoIB flow steering
* with udp unicast and tcp unicast
*/
MLX4_PUT(inbox, (u8) (MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN),
INIT_HCA_FS_IB_BITS_OFFSET);
MLX4_PUT(inbox, (u16) MLX4_FS_NUM_OF_L2_ADDR,
INIT_HCA_FS_IB_NUM_ADDRS_OFFSET);
if (dev->caps.dmfs_high_steer_mode !=
MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
MLX4_PUT(inbox,
((u8)(a0_dmfs_hw_steering[dev->caps.dmfs_high_steer_mode]
<< 6)),
INIT_HCA_FS_A0_OFFSET);
} else {
MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
MLX4_PUT(inbox, param->log_mc_entry_sz,
INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
MLX4_PUT(inbox, param->log_mc_hash_sz,
INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
MLX4_PUT(inbox, param->log_mc_table_sz,
INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0)
MLX4_PUT(inbox, (u8) (1 << 3),
INIT_HCA_UC_STEERING_OFFSET);
}
/* TPT attributes */
MLX4_PUT(inbox, param->dmpt_base, INIT_HCA_DMPT_BASE_OFFSET);
MLX4_PUT(inbox, param->mw_enabled, INIT_HCA_TPT_MW_OFFSET);
MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
MLX4_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
MLX4_PUT(inbox, param->cmpt_base, INIT_HCA_CMPT_BASE_OFFSET);
/* UAR attributes */
MLX4_PUT(inbox, param->uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
/* set parser VXLAN attributes */
if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) {
u8 parser_params = 0;
MLX4_PUT(inbox, parser_params, INIT_HCA_VXLAN_OFFSET);
}
err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA, 10000,
MLX4_CMD_NATIVE);
if (err)
mlx4_err(dev, "INIT_HCA returns %d\n", err);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_QUERY_HCA(struct mlx4_dev *dev,
struct mlx4_init_hca_param *param)
{
struct mlx4_cmd_mailbox *mailbox;
__be32 *outbox;
u32 dword_field;
int err;
u8 byte_field;
static const u8 a0_dmfs_query_hw_steering[] = {
[0] = MLX4_STEERING_DMFS_A0_DEFAULT,
[1] = MLX4_STEERING_DMFS_A0_DYNAMIC,
[2] = MLX4_STEERING_DMFS_A0_STATIC,
[3] = MLX4_STEERING_DMFS_A0_DISABLE
};
#define QUERY_HCA_GLOBAL_CAPS_OFFSET 0x04
#define QUERY_HCA_CORE_CLOCK_OFFSET 0x0c
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
MLX4_CMD_QUERY_HCA,
MLX4_CMD_TIME_CLASS_B,
!mlx4_is_slave(dev));
if (err)
goto out;
MLX4_GET(param->global_caps, outbox, QUERY_HCA_GLOBAL_CAPS_OFFSET);
MLX4_GET(param->hca_core_clock, outbox, QUERY_HCA_CORE_CLOCK_OFFSET);
/* QPC/EEC/CQC/EQC/RDMARC attributes */
MLX4_GET(param->qpc_base, outbox, INIT_HCA_QPC_BASE_OFFSET);
MLX4_GET(param->log_num_qps, outbox, INIT_HCA_LOG_QP_OFFSET);
MLX4_GET(param->srqc_base, outbox, INIT_HCA_SRQC_BASE_OFFSET);
MLX4_GET(param->log_num_srqs, outbox, INIT_HCA_LOG_SRQ_OFFSET);
MLX4_GET(param->cqc_base, outbox, INIT_HCA_CQC_BASE_OFFSET);
MLX4_GET(param->log_num_cqs, outbox, INIT_HCA_LOG_CQ_OFFSET);
MLX4_GET(param->altc_base, outbox, INIT_HCA_ALTC_BASE_OFFSET);
MLX4_GET(param->auxc_base, outbox, INIT_HCA_AUXC_BASE_OFFSET);
MLX4_GET(param->eqc_base, outbox, INIT_HCA_EQC_BASE_OFFSET);
MLX4_GET(param->log_num_eqs, outbox, INIT_HCA_LOG_EQ_OFFSET);
MLX4_GET(param->num_sys_eqs, outbox, INIT_HCA_NUM_SYS_EQS_OFFSET);
MLX4_GET(param->rdmarc_base, outbox, INIT_HCA_RDMARC_BASE_OFFSET);
MLX4_GET(param->log_rd_per_qp, outbox, INIT_HCA_LOG_RD_OFFSET);
MLX4_GET(dword_field, outbox, INIT_HCA_FLAGS_OFFSET);
if (dword_field & (1 << INIT_HCA_DEVICE_MANAGED_FLOW_STEERING_EN)) {
param->steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
} else {
MLX4_GET(byte_field, outbox, INIT_HCA_UC_STEERING_OFFSET);
if (byte_field & 0x8)
param->steering_mode = MLX4_STEERING_MODE_B0;
else
param->steering_mode = MLX4_STEERING_MODE_A0;
}
/* steering attributes */
if (param->steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
MLX4_GET(param->mc_base, outbox, INIT_HCA_FS_BASE_OFFSET);
MLX4_GET(param->log_mc_entry_sz, outbox,
INIT_HCA_FS_LOG_ENTRY_SZ_OFFSET);
MLX4_GET(param->log_mc_table_sz, outbox,
INIT_HCA_FS_LOG_TABLE_SZ_OFFSET);
MLX4_GET(byte_field, outbox,
INIT_HCA_FS_A0_OFFSET);
param->dmfs_high_steer_mode =
a0_dmfs_query_hw_steering[(byte_field >> 6) & 3];
} else {
MLX4_GET(param->mc_base, outbox, INIT_HCA_MC_BASE_OFFSET);
MLX4_GET(param->log_mc_entry_sz, outbox,
INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
MLX4_GET(param->log_mc_hash_sz, outbox,
INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
MLX4_GET(param->log_mc_table_sz, outbox,
INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
}
/* CX3 is capable of extending CQEs/EQEs from 32 to 64 bytes */
MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_OFFSETS);
if (byte_field & 0x20) /* 64-bytes eqe enabled */
param->dev_cap_enabled |= MLX4_DEV_CAP_64B_EQE_ENABLED;
if (byte_field & 0x40) /* 64-bytes cqe enabled */
param->dev_cap_enabled |= MLX4_DEV_CAP_64B_CQE_ENABLED;
/* CX3 is capable of extending CQEs\EQEs to strides larger than 64B */
MLX4_GET(byte_field, outbox, INIT_HCA_EQE_CQE_STRIDE_OFFSET);
if (byte_field) {
param->dev_cap_enabled |= MLX4_DEV_CAP_EQE_STRIDE_ENABLED;
param->dev_cap_enabled |= MLX4_DEV_CAP_CQE_STRIDE_ENABLED;
param->cqe_size = 1 << ((byte_field &
MLX4_CQE_SIZE_MASK_STRIDE) + 5);
param->eqe_size = 1 << (((byte_field &
MLX4_EQE_SIZE_MASK_STRIDE) >> 4) + 5);
}
/* TPT attributes */
MLX4_GET(param->dmpt_base, outbox, INIT_HCA_DMPT_BASE_OFFSET);
MLX4_GET(param->mw_enabled, outbox, INIT_HCA_TPT_MW_OFFSET);
MLX4_GET(param->log_mpt_sz, outbox, INIT_HCA_LOG_MPT_SZ_OFFSET);
MLX4_GET(param->mtt_base, outbox, INIT_HCA_MTT_BASE_OFFSET);
MLX4_GET(param->cmpt_base, outbox, INIT_HCA_CMPT_BASE_OFFSET);
/* UAR attributes */
MLX4_GET(param->uar_page_sz, outbox, INIT_HCA_UAR_PAGE_SZ_OFFSET);
MLX4_GET(param->log_uar_sz, outbox, INIT_HCA_LOG_UAR_SZ_OFFSET);
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
/* for IB-type ports only in SRIOV mode. Checks that both proxy QP0
* and real QP0 are active, so that the paravirtualized QP0 is ready
* to operate */
static int check_qp0_state(struct mlx4_dev *dev, int function, int port)
{
struct mlx4_priv *priv = mlx4_priv(dev);
/* irrelevant if not infiniband */
if (priv->mfunc.master.qp0_state[port].proxy_qp0_active &&
priv->mfunc.master.qp0_state[port].qp0_active)
return 1;
return 0;
}
int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd)
{
struct mlx4_priv *priv = mlx4_priv(dev);
int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
int err;
if (port < 0)
return -EINVAL;
if (priv->mfunc.master.slave_state[slave].init_port_mask & (1 << port))
return 0;
if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
/* Enable port only if it was previously disabled */
if (!priv->mfunc.master.init_port_ref[port]) {
err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err)
return err;
}
priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
} else {
if (slave == mlx4_master_func_num(dev)) {
if (check_qp0_state(dev, slave, port) &&
!priv->mfunc.master.qp0_state[port].port_active) {
err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (err)
return err;
priv->mfunc.master.qp0_state[port].port_active = 1;
priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
}
} else
priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
}
++priv->mfunc.master.init_port_ref[port];
return 0;
}
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)
#define INIT_PORT_FLAG_NG (1 << 17)
#define INIT_PORT_FLAG_G0 (1 << 16)
#define INIT_PORT_VL_SHIFT 4
#define INIT_PORT_PORT_WIDTH_SHIFT 8
#define INIT_PORT_MTU_OFFSET 0x04
#define INIT_PORT_MAX_GID_OFFSET 0x06
#define INIT_PORT_MAX_PKEY_OFFSET 0x0a
#define INIT_PORT_GUID0_OFFSET 0x10
#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;
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);
field = 128 << dev->caps.ib_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, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev, mailbox);
} else
err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
return err;
}
EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd)
{
struct mlx4_priv *priv = mlx4_priv(dev);
int port = mlx4_slave_convert_port(dev, slave, vhcr->in_modifier);
int err;
if (port < 0)
return -EINVAL;
if (!(priv->mfunc.master.slave_state[slave].init_port_mask &
(1 << port)))
return 0;
if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
if (priv->mfunc.master.init_port_ref[port] == 1) {
err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
1000, MLX4_CMD_NATIVE);
if (err)
return err;
}
priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
} else {
/* infiniband port */
if (slave == mlx4_master_func_num(dev)) {
if (!priv->mfunc.master.qp0_state[port].qp0_active &&
priv->mfunc.master.qp0_state[port].port_active) {
err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
1000, MLX4_CMD_NATIVE);
if (err)
return err;
priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
priv->mfunc.master.qp0_state[port].port_active = 0;
}
} else
priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
}
--priv->mfunc.master.init_port_ref[port];
return 0;
}
int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
{
return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT, 1000,
MLX4_CMD_WRAPPED);
}
EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
{
return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA, 1000,
MLX4_CMD_NATIVE);
}
struct mlx4_config_dev {
__be32 update_flags;
__be32 rsvd1[3];
__be16 vxlan_udp_dport;
__be16 rsvd2;
__be32 rsvd3[27];
__be16 rsvd4;
u8 rsvd5;
u8 rx_checksum_val;
};
#define MLX4_VXLAN_UDP_DPORT (1 << 0)
static int mlx4_CONFIG_DEV_set(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
{
int err;
struct mlx4_cmd_mailbox *mailbox;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memcpy(mailbox->buf, config_dev, sizeof(*config_dev));
err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_CONFIG_DEV,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
static int mlx4_CONFIG_DEV_get(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
{
int err;
struct mlx4_cmd_mailbox *mailbox;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 1, MLX4_CMD_CONFIG_DEV,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (!err)
memcpy(config_dev, mailbox->buf, sizeof(*config_dev));
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
/* Conversion between the HW values and the actual functionality.
* The value represented by the array index,
* and the functionality determined by the flags.
*/
static const u8 config_dev_csum_flags[] = {
[0] = 0,
[1] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP,
[2] = MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP |
MLX4_RX_CSUM_MODE_L4,
[3] = MLX4_RX_CSUM_MODE_L4 |
MLX4_RX_CSUM_MODE_IP_OK_IP_NON_TCP_UDP |
MLX4_RX_CSUM_MODE_MULTI_VLAN
};
int mlx4_config_dev_retrieval(struct mlx4_dev *dev,
struct mlx4_config_dev_params *params)
{
struct mlx4_config_dev config_dev;
int err;
u8 csum_mask;
#define CONFIG_DEV_RX_CSUM_MODE_MASK 0x7
#define CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET 0
#define CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET 4
if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_CONFIG_DEV))
return -ENOTSUPP;
err = mlx4_CONFIG_DEV_get(dev, &config_dev);
if (err)
return err;
csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT1_BIT_OFFSET) &
CONFIG_DEV_RX_CSUM_MODE_MASK;
if (csum_mask >= sizeof(config_dev_csum_flags)/sizeof(config_dev_csum_flags[0]))
return -EINVAL;
params->rx_csum_flags_port_1 = config_dev_csum_flags[csum_mask];
csum_mask = (config_dev.rx_checksum_val >> CONFIG_DEV_RX_CSUM_MODE_PORT2_BIT_OFFSET) &
CONFIG_DEV_RX_CSUM_MODE_MASK;
if (csum_mask >= sizeof(config_dev_csum_flags)/sizeof(config_dev_csum_flags[0]))
return -EINVAL;
params->rx_csum_flags_port_2 = config_dev_csum_flags[csum_mask];
params->vxlan_udp_dport = be16_to_cpu(config_dev.vxlan_udp_dport);
return 0;
}
EXPORT_SYMBOL_GPL(mlx4_config_dev_retrieval);
int mlx4_config_vxlan_port(struct mlx4_dev *dev, __be16 udp_port)
{
struct mlx4_config_dev config_dev;
memset(&config_dev, 0, sizeof(config_dev));
config_dev.update_flags = cpu_to_be32(MLX4_VXLAN_UDP_DPORT);
config_dev.vxlan_udp_dport = udp_port;
return mlx4_CONFIG_DEV_set(dev, &config_dev);
}
EXPORT_SYMBOL_GPL(mlx4_config_vxlan_port);
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,
MLX4_CMD_SET_ICM_SIZE,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
if (ret)
return ret;
/*
* Round up number of system pages needed in case
* MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
*/
*aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
(PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
return 0;
}
int mlx4_NOP(struct mlx4_dev *dev)
{
/* Input modifier of 0x1f means "finish as soon as possible." */
return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, 100, MLX4_CMD_NATIVE);
}
int mlx4_get_phys_port_id(struct mlx4_dev *dev)
{
u8 port;
u32 *outbox;
struct mlx4_cmd_mailbox *mailbox;
u32 in_mod;
u32 guid_hi, guid_lo;
int err, ret = 0;
#define MOD_STAT_CFG_PORT_OFFSET 8
#define MOD_STAT_CFG_GUID_H 0X14
#define MOD_STAT_CFG_GUID_L 0X1c
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
for (port = 1; port <= dev->caps.num_ports; port++) {
in_mod = port << MOD_STAT_CFG_PORT_OFFSET;
err = mlx4_cmd_box(dev, 0, mailbox->dma, in_mod, 0x2,
MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (err) {
mlx4_err(dev, "Fail to get port %d uplink guid\n",
port);
ret = err;
} else {
MLX4_GET(guid_hi, outbox, MOD_STAT_CFG_GUID_H);
MLX4_GET(guid_lo, outbox, MOD_STAT_CFG_GUID_L);
dev->caps.phys_port_id[port] = (u64)guid_lo |
(u64)guid_hi << 32;
}
}
mlx4_free_cmd_mailbox(dev, mailbox);
return ret;
}
#define MLX4_WOL_SETUP_MODE (5 << 28)
int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
{
u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
}
EXPORT_SYMBOL_GPL(mlx4_wol_read);
int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
{
u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
}
EXPORT_SYMBOL_GPL(mlx4_wol_write);
enum {
ADD_TO_MCG = 0x26,
};
void mlx4_opreq_action(struct work_struct *work)
{
struct mlx4_priv *priv = container_of(work, struct mlx4_priv,
opreq_task);
struct mlx4_dev *dev = &priv->dev;
int num_tasks = atomic_read(&priv->opreq_count);
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_mgm *mgm;
u32 *outbox;
u32 modifier;
u16 token;
u16 type;
int err;
u32 num_qps;
struct mlx4_qp qp;
int i;
u8 rem_mcg;
u8 prot;
#define GET_OP_REQ_MODIFIER_OFFSET 0x08
#define GET_OP_REQ_TOKEN_OFFSET 0x14
#define GET_OP_REQ_TYPE_OFFSET 0x1a
#define GET_OP_REQ_DATA_OFFSET 0x20
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
mlx4_err(dev, "Failed to allocate mailbox for GET_OP_REQ\n");
return;
}
outbox = mailbox->buf;
while (num_tasks) {
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0,
MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (err) {
mlx4_err(dev, "Failed to retrieve required operation: %d\n",
err);
return;
}
MLX4_GET(modifier, outbox, GET_OP_REQ_MODIFIER_OFFSET);
MLX4_GET(token, outbox, GET_OP_REQ_TOKEN_OFFSET);
MLX4_GET(type, outbox, GET_OP_REQ_TYPE_OFFSET);
type &= 0xfff;
switch (type) {
case ADD_TO_MCG:
if (dev->caps.steering_mode ==
MLX4_STEERING_MODE_DEVICE_MANAGED) {
mlx4_warn(dev, "ADD MCG operation is not supported in DEVICE_MANAGED steering mode\n");
err = EPERM;
break;
}
mgm = (struct mlx4_mgm *)((u8 *)(outbox) +
GET_OP_REQ_DATA_OFFSET);
num_qps = be32_to_cpu(mgm->members_count) &
MGM_QPN_MASK;
rem_mcg = ((u8 *)(&mgm->members_count))[0] & 1;
prot = ((u8 *)(&mgm->members_count))[0] >> 6;
for (i = 0; i < num_qps; i++) {
qp.qpn = be32_to_cpu(mgm->qp[i]);
if (rem_mcg)
err = mlx4_multicast_detach(dev, &qp,
mgm->gid,
prot, 0);
else
err = mlx4_multicast_attach(dev, &qp,
mgm->gid,
mgm->gid[5]
, 0, prot,
NULL);
if (err)
break;
}
break;
default:
mlx4_warn(dev, "Bad type for required operation\n");
err = EINVAL;
break;
}
err = mlx4_cmd(dev, 0, ((u32) err |
(__force u32)cpu_to_be32(token) << 16),
1, MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (err) {
mlx4_err(dev, "Failed to acknowledge required request: %d\n",
err);
goto out;
}
memset(outbox, 0, 0xffc);
num_tasks = atomic_dec_return(&priv->opreq_count);
}
out:
mlx4_free_cmd_mailbox(dev, mailbox);
}
static int mlx4_check_smp_firewall_active(struct mlx4_dev *dev,
struct mlx4_cmd_mailbox *mailbox)
{
#define MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET 0x10
#define MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET 0x20
#define MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET 0x40
#define MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET 0x70
u32 set_attr_mask, getresp_attr_mask;
u32 trap_attr_mask, traprepress_attr_mask;
MLX4_GET(set_attr_mask, mailbox->buf,
MLX4_CMD_MAD_DEMUX_SET_ATTR_OFFSET);
mlx4_dbg(dev, "SMP firewall set_attribute_mask = 0x%x\n",
set_attr_mask);
MLX4_GET(getresp_attr_mask, mailbox->buf,
MLX4_CMD_MAD_DEMUX_GETRESP_ATTR_OFFSET);
mlx4_dbg(dev, "SMP firewall getresp_attribute_mask = 0x%x\n",
getresp_attr_mask);
MLX4_GET(trap_attr_mask, mailbox->buf,
MLX4_CMD_MAD_DEMUX_TRAP_ATTR_OFFSET);
mlx4_dbg(dev, "SMP firewall trap_attribute_mask = 0x%x\n",
trap_attr_mask);
MLX4_GET(traprepress_attr_mask, mailbox->buf,
MLX4_CMD_MAD_DEMUX_TRAP_REPRESS_ATTR_OFFSET);
mlx4_dbg(dev, "SMP firewall traprepress_attribute_mask = 0x%x\n",
traprepress_attr_mask);
if (set_attr_mask && getresp_attr_mask && trap_attr_mask &&
traprepress_attr_mask)
return 1;
return 0;
}
int mlx4_config_mad_demux(struct mlx4_dev *dev)
{
struct mlx4_cmd_mailbox *mailbox;
int secure_host_active;
int err;
/* Check if mad_demux is supported */
if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_MAD_DEMUX))
return 0;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
mlx4_warn(dev, "Failed to allocate mailbox for cmd MAD_DEMUX");
return -ENOMEM;
}
/* Query mad_demux to find out which MADs are handled by internal sma */
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0x01 /* subn mgmt class */,
MLX4_CMD_MAD_DEMUX_QUERY_RESTR, MLX4_CMD_MAD_DEMUX,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
if (err) {
mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: query restrictions failed (%d)\n",
err);
goto out;
}
secure_host_active = mlx4_check_smp_firewall_active(dev, mailbox);
/* Config mad_demux to handle all MADs returned by the query above */
err = mlx4_cmd(dev, mailbox->dma, 0x01 /* subn mgmt class */,
MLX4_CMD_MAD_DEMUX_CONFIG, MLX4_CMD_MAD_DEMUX,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
if (err) {
mlx4_warn(dev, "MLX4_CMD_MAD_DEMUX: configure failed (%d)\n", err);
goto out;
}
if (secure_host_active)
mlx4_warn(dev, "HCA operating in secure-host mode. SMP firewall activated.\n");
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
/* Access Reg commands */
enum mlx4_access_reg_masks {
MLX4_ACCESS_REG_STATUS_MASK = 0x7f,
MLX4_ACCESS_REG_METHOD_MASK = 0x7f,
MLX4_ACCESS_REG_LEN_MASK = 0x7ff
};
struct mlx4_access_reg {
__be16 constant1;
u8 status;
u8 resrvd1;
__be16 reg_id;
u8 method;
u8 constant2;
__be32 resrvd2[2];
__be16 len_const;
__be16 resrvd3;
#define MLX4_ACCESS_REG_HEADER_SIZE (20)
u8 reg_data[MLX4_MAILBOX_SIZE-MLX4_ACCESS_REG_HEADER_SIZE];
} __attribute__((__packed__));
/**
* mlx4_ACCESS_REG - Generic access reg command.
* @dev: mlx4_dev.
* @reg_id: register ID to access.
* @method: Access method Read/Write.
* @reg_len: register length to Read/Write in bytes.
* @reg_data: reg_data pointer to Read/Write From/To.
*
* Access ConnectX registers FW command.
* Returns 0 on success and copies outbox mlx4_access_reg data
* field into reg_data or a negative error code.
*/
static int mlx4_ACCESS_REG(struct mlx4_dev *dev, u16 reg_id,
enum mlx4_access_reg_method method,
u16 reg_len, void *reg_data)
{
struct mlx4_cmd_mailbox *inbox, *outbox;
struct mlx4_access_reg *inbuf, *outbuf;
int err;
inbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(inbox))
return PTR_ERR(inbox);
outbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(outbox)) {
mlx4_free_cmd_mailbox(dev, inbox);
return PTR_ERR(outbox);
}
inbuf = inbox->buf;
outbuf = outbox->buf;
inbuf->constant1 = cpu_to_be16(0x1<<11 | 0x4);
inbuf->constant2 = 0x1;
inbuf->reg_id = cpu_to_be16(reg_id);
inbuf->method = method & MLX4_ACCESS_REG_METHOD_MASK;
reg_len = min(reg_len, (u16)(sizeof(inbuf->reg_data)));
inbuf->len_const =
cpu_to_be16(((reg_len/4 + 1) & MLX4_ACCESS_REG_LEN_MASK) |
((0x3) << 12));
memcpy(inbuf->reg_data, reg_data, reg_len);
err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 0, 0,
MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
MLX4_CMD_WRAPPED);
if (err)
goto out;
if (outbuf->status & MLX4_ACCESS_REG_STATUS_MASK) {
err = outbuf->status & MLX4_ACCESS_REG_STATUS_MASK;
mlx4_err(dev,
"MLX4_CMD_ACCESS_REG(%x) returned REG status (%x)\n",
reg_id, err);
goto out;
}
memcpy(reg_data, outbuf->reg_data, reg_len);
out:
mlx4_free_cmd_mailbox(dev, inbox);
mlx4_free_cmd_mailbox(dev, outbox);
return err;
}
/* ConnectX registers IDs */
enum mlx4_reg_id {
MLX4_REG_ID_PTYS = 0x5004,
};
/**
* mlx4_ACCESS_PTYS_REG - Access PTYs (Port Type and Speed)
* register
* @dev: mlx4_dev.
* @method: Access method Read/Write.
* @ptys_reg: PTYS register data pointer.
*
* Access ConnectX PTYS register, to Read/Write Port Type/Speed
* configuration
* Returns 0 on success or a negative error code.
*/
int mlx4_ACCESS_PTYS_REG(struct mlx4_dev *dev,
enum mlx4_access_reg_method method,
struct mlx4_ptys_reg *ptys_reg)
{
return mlx4_ACCESS_REG(dev, MLX4_REG_ID_PTYS,
method, sizeof(*ptys_reg), ptys_reg);
}
EXPORT_SYMBOL_GPL(mlx4_ACCESS_PTYS_REG);
int mlx4_ACCESS_REG_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd)
{
struct mlx4_access_reg *inbuf = inbox->buf;
u8 method = inbuf->method & MLX4_ACCESS_REG_METHOD_MASK;
u16 reg_id = be16_to_cpu(inbuf->reg_id);
if (slave != mlx4_master_func_num(dev) &&
method == MLX4_ACCESS_REG_WRITE)
return -EPERM;
if (reg_id == MLX4_REG_ID_PTYS) {
struct mlx4_ptys_reg *ptys_reg =
(struct mlx4_ptys_reg *)inbuf->reg_data;
ptys_reg->local_port =
mlx4_slave_convert_port(dev, slave,
ptys_reg->local_port);
}
return mlx4_cmd_box(dev, inbox->dma, outbox->dma, vhcr->in_modifier,
0, MLX4_CMD_ACCESS_REG, MLX4_CMD_TIME_CLASS_C,
MLX4_CMD_NATIVE);
}
Reference in a new issue View git blame Copy permalink