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linux/drivers/net/cxgb4vf/t4vf_hw.c
Casey Leedom 80ce3f67e7 cxgb4vf: fix mailbox data/control coherency domain race 
For the VFs, the Mailbox Data "registers" are actually backed by
T4's "MA" interface rather than PL Registers (as is the case for
the PFs).  Because these are in different coherency domains, the
write to the VF's PL-register-backed Mailbox Control can race in
front of the writes to the MA-backed VF Mailbox Data "registers".
So we need to do a read-back on at least one byte of the VF Mailbox
Data registers before doing the write to the VF Mailbox Control
register.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-10 13:53:43 -08:00

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/*
* This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
* driver for Linux.
*
* Copyright (c) 2009-2010 Chelsio Communications, 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/version.h>
#include <linux/pci.h>
#include "t4vf_common.h"
#include "t4vf_defs.h"
#include "../cxgb4/t4_regs.h"
#include "../cxgb4/t4fw_api.h"
/*
* Wait for the device to become ready (signified by our "who am I" register
* returning a value other than all 1's). Return an error if it doesn't
* become ready ...
*/
int __devinit t4vf_wait_dev_ready(struct adapter *adapter)
{
const u32 whoami = T4VF_PL_BASE_ADDR + PL_VF_WHOAMI;
const u32 notready1 = 0xffffffff;
const u32 notready2 = 0xeeeeeeee;
u32 val;
val = t4_read_reg(adapter, whoami);
if (val != notready1 && val != notready2)
return 0;
msleep(500);
val = t4_read_reg(adapter, whoami);
if (val != notready1 && val != notready2)
return 0;
else
return -EIO;
}
/*
* Get the reply to a mailbox command and store it in @rpl in big-endian order
* (since the firmware data structures are specified in a big-endian layout).
*/
static void get_mbox_rpl(struct adapter *adapter, __be64 *rpl, int size,
u32 mbox_data)
{
for ( ; size; size -= 8, mbox_data += 8)
*rpl++ = cpu_to_be64(t4_read_reg64(adapter, mbox_data));
}
/*
* Dump contents of mailbox with a leading tag.
*/
static void dump_mbox(struct adapter *adapter, const char *tag, u32 mbox_data)
{
dev_err(adapter->pdev_dev,
"mbox %s: %llx %llx %llx %llx %llx %llx %llx %llx\n", tag,
(unsigned long long)t4_read_reg64(adapter, mbox_data + 0),
(unsigned long long)t4_read_reg64(adapter, mbox_data + 8),
(unsigned long long)t4_read_reg64(adapter, mbox_data + 16),
(unsigned long long)t4_read_reg64(adapter, mbox_data + 24),
(unsigned long long)t4_read_reg64(adapter, mbox_data + 32),
(unsigned long long)t4_read_reg64(adapter, mbox_data + 40),
(unsigned long long)t4_read_reg64(adapter, mbox_data + 48),
(unsigned long long)t4_read_reg64(adapter, mbox_data + 56));
}
/**
* t4vf_wr_mbox_core - send a command to FW through the mailbox
* @adapter: the adapter
* @cmd: the command to write
* @size: command length in bytes
* @rpl: where to optionally store the reply
* @sleep_ok: if true we may sleep while awaiting command completion
*
* Sends the given command to FW through the mailbox and waits for the
* FW to execute the command. If @rpl is not %NULL it is used to store
* the FW's reply to the command. The command and its optional reply
* are of the same length. FW can take up to 500 ms to respond.
* @sleep_ok determines whether we may sleep while awaiting the response.
* If sleeping is allowed we use progressive backoff otherwise we spin.
*
* The return value is 0 on success or a negative errno on failure. A
* failure can happen either because we are not able to execute the
* command or FW executes it but signals an error. In the latter case
* the return value is the error code indicated by FW (negated).
*/
int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
void *rpl, bool sleep_ok)
{
static const int delay[] = {
1, 1, 3, 5, 10, 10, 20, 50, 100
};
u32 v;
int i, ms, delay_idx;
const __be64 *p;
u32 mbox_data = T4VF_MBDATA_BASE_ADDR;
u32 mbox_ctl = T4VF_CIM_BASE_ADDR + CIM_VF_EXT_MAILBOX_CTRL;
/*
* Commands must be multiples of 16 bytes in length and may not be
* larger than the size of the Mailbox Data register array.
*/
if ((size % 16) != 0 ||
size > NUM_CIM_VF_MAILBOX_DATA_INSTANCES * 4)
return -EINVAL;
/*
* Loop trying to get ownership of the mailbox. Return an error
* if we can't gain ownership.
*/
v = MBOWNER_GET(t4_read_reg(adapter, mbox_ctl));
for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++)
v = MBOWNER_GET(t4_read_reg(adapter, mbox_ctl));
if (v != MBOX_OWNER_DRV)
return v == MBOX_OWNER_FW ? -EBUSY : -ETIMEDOUT;
/*
* Write the command array into the Mailbox Data register array and
* transfer ownership of the mailbox to the firmware.
*
* For the VFs, the Mailbox Data "registers" are actually backed by
* T4's "MA" interface rather than PL Registers (as is the case for
* the PFs). Because these are in different coherency domains, the
* write to the VF's PL-register-backed Mailbox Control can race in
* front of the writes to the MA-backed VF Mailbox Data "registers".
* So we need to do a read-back on at least one byte of the VF Mailbox
* Data registers before doing the write to the VF Mailbox Control
* register.
*/
for (i = 0, p = cmd; i < size; i += 8)
t4_write_reg64(adapter, mbox_data + i, be64_to_cpu(*p++));
t4_read_reg(adapter, mbox_data); /* flush write */
t4_write_reg(adapter, mbox_ctl,
MBMSGVALID | MBOWNER(MBOX_OWNER_FW));
t4_read_reg(adapter, mbox_ctl); /* flush write */
/*
* Spin waiting for firmware to acknowledge processing our command.
*/
delay_idx = 0;
ms = delay[0];
for (i = 0; i < 500; i += ms) {
if (sleep_ok) {
ms = delay[delay_idx];
if (delay_idx < ARRAY_SIZE(delay) - 1)
delay_idx++;
msleep(ms);
} else
mdelay(ms);
/*
* If we're the owner, see if this is the reply we wanted.
*/
v = t4_read_reg(adapter, mbox_ctl);
if (MBOWNER_GET(v) == MBOX_OWNER_DRV) {
/*
* If the Message Valid bit isn't on, revoke ownership
* of the mailbox and continue waiting for our reply.
*/
if ((v & MBMSGVALID) == 0) {
t4_write_reg(adapter, mbox_ctl,
MBOWNER(MBOX_OWNER_NONE));
continue;
}
/*
* We now have our reply. Extract the command return
* value, copy the reply back to our caller's buffer
* (if specified) and revoke ownership of the mailbox.
* We return the (negated) firmware command return
* code (this depends on FW_SUCCESS == 0).
*/
/* return value in low-order little-endian word */
v = t4_read_reg(adapter, mbox_data);
if (FW_CMD_RETVAL_GET(v))
dump_mbox(adapter, "FW Error", mbox_data);
if (rpl) {
/* request bit in high-order BE word */
WARN_ON((be32_to_cpu(*(const u32 *)cmd)
& FW_CMD_REQUEST) == 0);
get_mbox_rpl(adapter, rpl, size, mbox_data);
WARN_ON((be32_to_cpu(*(u32 *)rpl)
& FW_CMD_REQUEST) != 0);
}
t4_write_reg(adapter, mbox_ctl,
MBOWNER(MBOX_OWNER_NONE));
return -FW_CMD_RETVAL_GET(v);
}
}
/*
* We timed out. Return the error ...
*/
dump_mbox(adapter, "FW Timeout", mbox_data);
return -ETIMEDOUT;
}
/**
* hash_mac_addr - return the hash value of a MAC address
* @addr: the 48-bit Ethernet MAC address
*
* Hashes a MAC address according to the hash function used by hardware
* inexact (hash) address matching.
*/
static int hash_mac_addr(const u8 *addr)
{
u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
a ^= b;
a ^= (a >> 12);
a ^= (a >> 6);
return a & 0x3f;
}
/**
* init_link_config - initialize a link's SW state
* @lc: structure holding the link state
* @caps: link capabilities
*
* Initializes the SW state maintained for each link, including the link's
* capabilities and default speed/flow-control/autonegotiation settings.
*/
static void __devinit init_link_config(struct link_config *lc,
unsigned int caps)
{
lc->supported = caps;
lc->requested_speed = 0;
lc->speed = 0;
lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
if (lc->supported & SUPPORTED_Autoneg) {
lc->advertising = lc->supported;
lc->autoneg = AUTONEG_ENABLE;
lc->requested_fc |= PAUSE_AUTONEG;
} else {
lc->advertising = 0;
lc->autoneg = AUTONEG_DISABLE;
}
}
/**
* t4vf_port_init - initialize port hardware/software state
* @adapter: the adapter
* @pidx: the adapter port index
*/
int __devinit t4vf_port_init(struct adapter *adapter, int pidx)
{
struct port_info *pi = adap2pinfo(adapter, pidx);
struct fw_vi_cmd vi_cmd, vi_rpl;
struct fw_port_cmd port_cmd, port_rpl;
int v;
u32 word;
/*
* Execute a VI Read command to get our Virtual Interface information
* like MAC address, etc.
*/
memset(&vi_cmd, 0, sizeof(vi_cmd));
vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
FW_CMD_REQUEST |
FW_CMD_READ);
vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd));
vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID(pi->viid));
v = t4vf_wr_mbox(adapter, &vi_cmd, sizeof(vi_cmd), &vi_rpl);
if (v)
return v;
BUG_ON(pi->port_id != FW_VI_CMD_PORTID_GET(vi_rpl.portid_pkd));
pi->rss_size = FW_VI_CMD_RSSSIZE_GET(be16_to_cpu(vi_rpl.rsssize_pkd));
t4_os_set_hw_addr(adapter, pidx, vi_rpl.mac);
/*
* If we don't have read access to our port information, we're done
* now. Otherwise, execute a PORT Read command to get it ...
*/
if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT))
return 0;
memset(&port_cmd, 0, sizeof(port_cmd));
port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP(FW_PORT_CMD) |
FW_CMD_REQUEST |
FW_CMD_READ |
FW_PORT_CMD_PORTID(pi->port_id));
port_cmd.action_to_len16 =
cpu_to_be32(FW_PORT_CMD_ACTION(FW_PORT_ACTION_GET_PORT_INFO) |
FW_LEN16(port_cmd));
v = t4vf_wr_mbox(adapter, &port_cmd, sizeof(port_cmd), &port_rpl);
if (v)
return v;
v = 0;
word = be16_to_cpu(port_rpl.u.info.pcap);
if (word & FW_PORT_CAP_SPEED_100M)
v |= SUPPORTED_100baseT_Full;
if (word & FW_PORT_CAP_SPEED_1G)
v |= SUPPORTED_1000baseT_Full;
if (word & FW_PORT_CAP_SPEED_10G)
v |= SUPPORTED_10000baseT_Full;
if (word & FW_PORT_CAP_ANEG)
v |= SUPPORTED_Autoneg;
init_link_config(&pi->link_cfg, v);
return 0;
}
/**
* t4vf_fw_reset - issue a reset to FW
* @adapter: the adapter
*
* Issues a reset command to FW. For a Physical Function this would
* result in the Firmware reseting all of its state. For a Virtual
* Function this just resets the state associated with the VF.
*/
int t4vf_fw_reset(struct adapter *adapter)
{
struct fw_reset_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_write = cpu_to_be32(FW_CMD_OP(FW_RESET_CMD) |
FW_CMD_WRITE);
cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}
/**
* t4vf_query_params - query FW or device parameters
* @adapter: the adapter
* @nparams: the number of parameters
* @params: the parameter names
* @vals: the parameter values
*
* Reads the values of firmware or device parameters. Up to 7 parameters
* can be queried at once.
*/
int t4vf_query_params(struct adapter *adapter, unsigned int nparams,
const u32 *params, u32 *vals)
{
int i, ret;
struct fw_params_cmd cmd, rpl;
struct fw_params_param *p;
size_t len16;
if (nparams > 7)
return -EINVAL;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PARAMS_CMD) |
FW_CMD_REQUEST |
FW_CMD_READ);
len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
param[nparams].mnem), 16);
cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16));
for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++)
p->mnem = htonl(*params++);
ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
if (ret == 0)
for (i = 0, p = &rpl.param[0]; i < nparams; i++, p++)
*vals++ = be32_to_cpu(p->val);
return ret;
}
/**
* t4vf_set_params - sets FW or device parameters
* @adapter: the adapter
* @nparams: the number of parameters
* @params: the parameter names
* @vals: the parameter values
*
* Sets the values of firmware or device parameters. Up to 7 parameters
* can be specified at once.
*/
int t4vf_set_params(struct adapter *adapter, unsigned int nparams,
const u32 *params, const u32 *vals)
{
int i;
struct fw_params_cmd cmd;
struct fw_params_param *p;
size_t len16;
if (nparams > 7)
return -EINVAL;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PARAMS_CMD) |
FW_CMD_REQUEST |
FW_CMD_WRITE);
len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
param[nparams]), 16);
cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16));
for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) {
p->mnem = cpu_to_be32(*params++);
p->val = cpu_to_be32(*vals++);
}
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}
/**
* t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters
* @adapter: the adapter
*
* Retrieves various core SGE parameters in the form of hardware SGE
* register values. The caller is responsible for decoding these as
* needed. The SGE parameters are stored in @adapter->params.sge.
*/
int t4vf_get_sge_params(struct adapter *adapter)
{
struct sge_params *sge_params = &adapter->params.sge;
u32 params[7], vals[7];
int v;
params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ(SGE_CONTROL));
params[1] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ(SGE_HOST_PAGE_SIZE));
params[2] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ(SGE_FL_BUFFER_SIZE0));
params[3] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ(SGE_FL_BUFFER_SIZE1));
params[4] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_0_AND_1));
params[5] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_2_AND_3));
params[6] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_4_AND_5));
v = t4vf_query_params(adapter, 7, params, vals);
if (v)
return v;
sge_params->sge_control = vals[0];
sge_params->sge_host_page_size = vals[1];
sge_params->sge_fl_buffer_size[0] = vals[2];
sge_params->sge_fl_buffer_size[1] = vals[3];
sge_params->sge_timer_value_0_and_1 = vals[4];
sge_params->sge_timer_value_2_and_3 = vals[5];
sge_params->sge_timer_value_4_and_5 = vals[6];
params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
FW_PARAMS_PARAM_XYZ(SGE_INGRESS_RX_THRESHOLD));
v = t4vf_query_params(adapter, 1, params, vals);
if (v)
return v;
sge_params->sge_ingress_rx_threshold = vals[0];
return 0;
}
/**
* t4vf_get_vpd_params - retrieve device VPD paremeters
* @adapter: the adapter
*
* Retrives various device Vital Product Data parameters. The parameters
* are stored in @adapter->params.vpd.
*/
int t4vf_get_vpd_params(struct adapter *adapter)
{
struct vpd_params *vpd_params = &adapter->params.vpd;
u32 params[7], vals[7];
int v;
params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CCLK));
v = t4vf_query_params(adapter, 1, params, vals);
if (v)
return v;
vpd_params->cclk = vals[0];
return 0;
}
/**
* t4vf_get_dev_params - retrieve device paremeters
* @adapter: the adapter
*
* Retrives various device parameters. The parameters are stored in
* @adapter->params.dev.
*/
int t4vf_get_dev_params(struct adapter *adapter)
{
struct dev_params *dev_params = &adapter->params.dev;
u32 params[7], vals[7];
int v;
params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_FWREV));
params[1] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_TPREV));
v = t4vf_query_params(adapter, 2, params, vals);
if (v)
return v;
dev_params->fwrev = vals[0];
dev_params->tprev = vals[1];
return 0;
}
/**
* t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration
* @adapter: the adapter
*
* Retrieves global RSS mode and parameters with which we have to live
* and stores them in the @adapter's RSS parameters.
*/
int t4vf_get_rss_glb_config(struct adapter *adapter)
{
struct rss_params *rss = &adapter->params.rss;
struct fw_rss_glb_config_cmd cmd, rpl;
int v;
/*
* Execute an RSS Global Configuration read command to retrieve
* our RSS configuration.
*/
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_write = cpu_to_be32(FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) |
FW_CMD_REQUEST |
FW_CMD_READ);
cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
if (v)
return v;
/*
* Transate the big-endian RSS Global Configuration into our
* cpu-endian format based on the RSS mode. We also do first level
* filtering at this point to weed out modes which don't support
* VF Drivers ...
*/
rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_GET(
be32_to_cpu(rpl.u.manual.mode_pkd));
switch (rss->mode) {
case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
u32 word = be32_to_cpu(
rpl.u.basicvirtual.synmapen_to_hashtoeplitz);
rss->u.basicvirtual.synmapen =
((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN) != 0);
rss->u.basicvirtual.syn4tupenipv6 =
((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6) != 0);
rss->u.basicvirtual.syn2tupenipv6 =
((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6) != 0);
rss->u.basicvirtual.syn4tupenipv4 =
((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4) != 0);
rss->u.basicvirtual.syn2tupenipv4 =
((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4) != 0);
rss->u.basicvirtual.ofdmapen =
((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN) != 0);
rss->u.basicvirtual.tnlmapen =
((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN) != 0);
rss->u.basicvirtual.tnlalllookup =
((word & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP) != 0);
rss->u.basicvirtual.hashtoeplitz =
((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ) != 0);
/* we need at least Tunnel Map Enable to be set */
if (!rss->u.basicvirtual.tnlmapen)
return -EINVAL;
break;
}
default:
/* all unknown/unsupported RSS modes result in an error */
return -EINVAL;
}
return 0;
}
/**
* t4vf_get_vfres - retrieve VF resource limits
* @adapter: the adapter
*
* Retrieves configured resource limits and capabilities for a virtual
* function. The results are stored in @adapter->vfres.
*/
int t4vf_get_vfres(struct adapter *adapter)
{
struct vf_resources *vfres = &adapter->params.vfres;
struct fw_pfvf_cmd cmd, rpl;
int v;
u32 word;
/*
* Execute PFVF Read command to get VF resource limits; bail out early
* with error on command failure.
*/
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PFVF_CMD) |
FW_CMD_REQUEST |
FW_CMD_READ);
cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
if (v)
return v;
/*
* Extract VF resource limits and return success.
*/
word = be32_to_cpu(rpl.niqflint_niq);
vfres->niqflint = FW_PFVF_CMD_NIQFLINT_GET(word);
vfres->niq = FW_PFVF_CMD_NIQ_GET(word);
word = be32_to_cpu(rpl.type_to_neq);
vfres->neq = FW_PFVF_CMD_NEQ_GET(word);
vfres->pmask = FW_PFVF_CMD_PMASK_GET(word);
word = be32_to_cpu(rpl.tc_to_nexactf);
vfres->tc = FW_PFVF_CMD_TC_GET(word);
vfres->nvi = FW_PFVF_CMD_NVI_GET(word);
vfres->nexactf = FW_PFVF_CMD_NEXACTF_GET(word);
word = be32_to_cpu(rpl.r_caps_to_nethctrl);
vfres->r_caps = FW_PFVF_CMD_R_CAPS_GET(word);
vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_GET(word);
vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_GET(word);
return 0;
}
/**
* t4vf_read_rss_vi_config - read a VI's RSS configuration
* @adapter: the adapter
* @viid: Virtual Interface ID
* @config: pointer to host-native VI RSS Configuration buffer
*
* Reads the Virtual Interface's RSS configuration information and
* translates it into CPU-native format.
*/
int t4vf_read_rss_vi_config(struct adapter *adapter, unsigned int viid,
union rss_vi_config *config)
{
struct fw_rss_vi_config_cmd cmd, rpl;
int v;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
FW_CMD_REQUEST |
FW_CMD_READ |
FW_RSS_VI_CONFIG_CMD_VIID(viid));
cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
if (v)
return v;
switch (adapter->params.rss.mode) {
case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen);
config->basicvirtual.ip6fourtupen =
((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) != 0);
config->basicvirtual.ip6twotupen =
((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) != 0);
config->basicvirtual.ip4fourtupen =
((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) != 0);
config->basicvirtual.ip4twotupen =
((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) != 0);
config->basicvirtual.udpen =
((word & FW_RSS_VI_CONFIG_CMD_UDPEN) != 0);
config->basicvirtual.defaultq =
FW_RSS_VI_CONFIG_CMD_DEFAULTQ_GET(word);
break;
}
default:
return -EINVAL;
}
return 0;
}
/**
* t4vf_write_rss_vi_config - write a VI's RSS configuration
* @adapter: the adapter
* @viid: Virtual Interface ID
* @config: pointer to host-native VI RSS Configuration buffer
*
* Write the Virtual Interface's RSS configuration information
* (translating it into firmware-native format before writing).
*/
int t4vf_write_rss_vi_config(struct adapter *adapter, unsigned int viid,
union rss_vi_config *config)
{
struct fw_rss_vi_config_cmd cmd, rpl;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
FW_CMD_REQUEST |
FW_CMD_WRITE |
FW_RSS_VI_CONFIG_CMD_VIID(viid));
cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
switch (adapter->params.rss.mode) {
case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
u32 word = 0;
if (config->basicvirtual.ip6fourtupen)
word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN;
if (config->basicvirtual.ip6twotupen)
word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN;
if (config->basicvirtual.ip4fourtupen)
word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN;
if (config->basicvirtual.ip4twotupen)
word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN;
if (config->basicvirtual.udpen)
word |= FW_RSS_VI_CONFIG_CMD_UDPEN;
word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ(
config->basicvirtual.defaultq);
cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word);
break;
}
default:
return -EINVAL;
}
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
}
/**
* t4vf_config_rss_range - configure a portion of the RSS mapping table
* @adapter: the adapter
* @viid: Virtual Interface of RSS Table Slice
* @start: starting entry in the table to write
* @n: how many table entries to write
* @rspq: values for the "Response Queue" (Ingress Queue) lookup table
* @nrspq: number of values in @rspq
*
* Programs the selected part of the VI's RSS mapping table with the
* provided values. If @nrspq < @n the supplied values are used repeatedly
* until the full table range is populated.
*
* The caller must ensure the values in @rspq are in the range 0..1023.
*/
int t4vf_config_rss_range(struct adapter *adapter, unsigned int viid,
int start, int n, const u16 *rspq, int nrspq)
{
const u16 *rsp = rspq;
const u16 *rsp_end = rspq+nrspq;
struct fw_rss_ind_tbl_cmd cmd;
/*
* Initialize firmware command template to write the RSS table.
*/
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_IND_TBL_CMD) |
FW_CMD_REQUEST |
FW_CMD_WRITE |
FW_RSS_IND_TBL_CMD_VIID(viid));
cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
/*
* Each firmware RSS command can accommodate up to 32 RSS Ingress
* Queue Identifiers. These Ingress Queue IDs are packed three to
* a 32-bit word as 10-bit values with the upper remaining 2 bits
* reserved.
*/
while (n > 0) {
__be32 *qp = &cmd.iq0_to_iq2;
int nq = min(n, 32);
int ret;
/*
* Set up the firmware RSS command header to send the next
* "nq" Ingress Queue IDs to the firmware.
*/
cmd.niqid = cpu_to_be16(nq);
cmd.startidx = cpu_to_be16(start);
/*
* "nq" more done for the start of the next loop.
*/
start += nq;
n -= nq;
/*
* While there are still Ingress Queue IDs to stuff into the
* current firmware RSS command, retrieve them from the
* Ingress Queue ID array and insert them into the command.
*/
while (nq > 0) {
/*
* Grab up to the next 3 Ingress Queue IDs (wrapping
* around the Ingress Queue ID array if necessary) and
* insert them into the firmware RSS command at the
* current 3-tuple position within the commad.
*/
u16 qbuf[3];
u16 *qbp = qbuf;
int nqbuf = min(3, nq);
nq -= nqbuf;
qbuf[0] = qbuf[1] = qbuf[2] = 0;
while (nqbuf) {
nqbuf--;
*qbp++ = *rsp++;
if (rsp >= rsp_end)
rsp = rspq;
}
*qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0(qbuf[0]) |
FW_RSS_IND_TBL_CMD_IQ1(qbuf[1]) |
FW_RSS_IND_TBL_CMD_IQ2(qbuf[2]));
}
/*
* Send this portion of the RRS table update to the firmware;
* bail out on any errors.
*/
ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
if (ret)
return ret;
}
return 0;
}
/**
* t4vf_alloc_vi - allocate a virtual interface on a port
* @adapter: the adapter
* @port_id: physical port associated with the VI
*
* Allocate a new Virtual Interface and bind it to the indicated
* physical port. Return the new Virtual Interface Identifier on
* success, or a [negative] error number on failure.
*/
int t4vf_alloc_vi(struct adapter *adapter, int port_id)
{
struct fw_vi_cmd cmd, rpl;
int v;
/*
* Execute a VI command to allocate Virtual Interface and return its
* VIID.
*/
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
FW_CMD_REQUEST |
FW_CMD_WRITE |
FW_CMD_EXEC);
cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
FW_VI_CMD_ALLOC);
cmd.portid_pkd = FW_VI_CMD_PORTID(port_id);
v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
if (v)
return v;
return FW_VI_CMD_VIID_GET(be16_to_cpu(rpl.type_viid));
}
/**
* t4vf_free_vi -- free a virtual interface
* @adapter: the adapter
* @viid: the virtual interface identifier
*
* Free a previously allocated Virtual Interface. Return an error on
* failure.
*/
int t4vf_free_vi(struct adapter *adapter, int viid)
{
struct fw_vi_cmd cmd;
/*
* Execute a VI command to free the Virtual Interface.
*/
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
FW_CMD_REQUEST |
FW_CMD_EXEC);
cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
FW_VI_CMD_FREE);
cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID(viid));
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}
/**
* t4vf_enable_vi - enable/disable a virtual interface
* @adapter: the adapter
* @viid: the Virtual Interface ID
* @rx_en: 1=enable Rx, 0=disable Rx
* @tx_en: 1=enable Tx, 0=disable Tx
*
* Enables/disables a virtual interface.
*/
int t4vf_enable_vi(struct adapter *adapter, unsigned int viid,
bool rx_en, bool tx_en)
{
struct fw_vi_enable_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_ENABLE_CMD) |
FW_CMD_REQUEST |
FW_CMD_EXEC |
FW_VI_ENABLE_CMD_VIID(viid));
cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN(rx_en) |
FW_VI_ENABLE_CMD_EEN(tx_en) |
FW_LEN16(cmd));
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}
/**
* t4vf_identify_port - identify a VI's port by blinking its LED
* @adapter: the adapter
* @viid: the Virtual Interface ID
* @nblinks: how many times to blink LED at 2.5 Hz
*
* Identifies a VI's port by blinking its LED.
*/
int t4vf_identify_port(struct adapter *adapter, unsigned int viid,
unsigned int nblinks)
{
struct fw_vi_enable_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_ENABLE_CMD) |
FW_CMD_REQUEST |
FW_CMD_EXEC |
FW_VI_ENABLE_CMD_VIID(viid));
cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED |
FW_LEN16(cmd));
cmd.blinkdur = cpu_to_be16(nblinks);
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}
/**
* t4vf_set_rxmode - set Rx properties of a virtual interface
* @adapter: the adapter
* @viid: the VI id
* @mtu: the new MTU or -1 for no change
* @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
* @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
* @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
* @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
* -1 no change
*
* Sets Rx properties of a virtual interface.
*/
int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid,
int mtu, int promisc, int all_multi, int bcast, int vlanex,
bool sleep_ok)
{
struct fw_vi_rxmode_cmd cmd;
/* convert to FW values */
if (mtu < 0)
mtu = FW_VI_RXMODE_CMD_MTU_MASK;
if (promisc < 0)
promisc = FW_VI_RXMODE_CMD_PROMISCEN_MASK;
if (all_multi < 0)
all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_MASK;
if (bcast < 0)
bcast = FW_VI_RXMODE_CMD_BROADCASTEN_MASK;
if (vlanex < 0)
vlanex = FW_VI_RXMODE_CMD_VLANEXEN_MASK;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_RXMODE_CMD) |
FW_CMD_REQUEST |
FW_CMD_WRITE |
FW_VI_RXMODE_CMD_VIID(viid));
cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
cmd.mtu_to_vlanexen =
cpu_to_be32(FW_VI_RXMODE_CMD_MTU(mtu) |
FW_VI_RXMODE_CMD_PROMISCEN(promisc) |
FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) |
FW_VI_RXMODE_CMD_BROADCASTEN(bcast) |
FW_VI_RXMODE_CMD_VLANEXEN(vlanex));
return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
}
/**
* t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses
* @adapter: the adapter
* @viid: the Virtual Interface Identifier
* @free: if true any existing filters for this VI id are first removed
* @naddr: the number of MAC addresses to allocate filters for (up to 7)
* @addr: the MAC address(es)
* @idx: where to store the index of each allocated filter
* @hash: pointer to hash address filter bitmap
* @sleep_ok: call is allowed to sleep
*
* Allocates an exact-match filter for each of the supplied addresses and
* sets it to the corresponding address. If @idx is not %NULL it should
* have at least @naddr entries, each of which will be set to the index of
* the filter allocated for the corresponding MAC address. If a filter
* could not be allocated for an address its index is set to 0xffff.
* If @hash is not %NULL addresses that fail to allocate an exact filter
* are hashed and update the hash filter bitmap pointed at by @hash.
*
* Returns a negative error number or the number of filters allocated.
*/
int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free,
unsigned int naddr, const u8 **addr, u16 *idx,
u64 *hash, bool sleep_ok)
{
int offset, ret = 0;
unsigned nfilters = 0;
unsigned int rem = naddr;
struct fw_vi_mac_cmd cmd, rpl;
if (naddr > FW_CLS_TCAM_NUM_ENTRIES)
return -EINVAL;
for (offset = 0; offset < naddr; /**/) {
unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact)
? rem
: ARRAY_SIZE(cmd.u.exact));
size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
u.exact[fw_naddr]), 16);
struct fw_vi_mac_exact *p;
int i;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) |
FW_CMD_REQUEST |
FW_CMD_WRITE |
(free ? FW_CMD_EXEC : 0) |
FW_VI_MAC_CMD_VIID(viid));
cmd.freemacs_to_len16 =
cpu_to_be32(FW_VI_MAC_CMD_FREEMACS(free) |
FW_CMD_LEN16(len16));
for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) {
p->valid_to_idx = cpu_to_be16(
FW_VI_MAC_CMD_VALID |
FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
}
ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl,
sleep_ok);
if (ret && ret != -ENOMEM)
break;
for (i = 0, p = rpl.u.exact; i < fw_naddr; i++, p++) {
u16 index = FW_VI_MAC_CMD_IDX_GET(
be16_to_cpu(p->valid_to_idx));
if (idx)
idx[offset+i] =
(index >= FW_CLS_TCAM_NUM_ENTRIES
? 0xffff
: index);
if (index < FW_CLS_TCAM_NUM_ENTRIES)
nfilters++;
else if (hash)
*hash |= (1ULL << hash_mac_addr(addr[offset+i]));
}
free = false;
offset += fw_naddr;
rem -= fw_naddr;
}
/*
* If there were no errors or we merely ran out of room in our MAC
* address arena, return the number of filters actually written.
*/
if (ret == 0 || ret == -ENOMEM)
ret = nfilters;
return ret;
}
/**
* t4vf_change_mac - modifies the exact-match filter for a MAC address
* @adapter: the adapter
* @viid: the Virtual Interface ID
* @idx: index of existing filter for old value of MAC address, or -1
* @addr: the new MAC address value
* @persist: if idx < 0, the new MAC allocation should be persistent
*
* Modifies an exact-match filter and sets it to the new MAC address.
* Note that in general it is not possible to modify the value of a given
* filter so the generic way to modify an address filter is to free the
* one being used by the old address value and allocate a new filter for
* the new address value. @idx can be -1 if the address is a new
* addition.
*
* Returns a negative error number or the index of the filter with the new
* MAC value.
*/
int t4vf_change_mac(struct adapter *adapter, unsigned int viid,
int idx, const u8 *addr, bool persist)
{
int ret;
struct fw_vi_mac_cmd cmd, rpl;
struct fw_vi_mac_exact *p = &cmd.u.exact[0];
size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
u.exact[1]), 16);
/*
* If this is a new allocation, determine whether it should be
* persistent (across a "freemacs" operation) or not.
*/
if (idx < 0)
idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) |
FW_CMD_REQUEST |
FW_CMD_WRITE |
FW_VI_MAC_CMD_VIID(viid));
cmd.freemacs_to_len16 = cpu_to_be32(FW_CMD_LEN16(len16));
p->valid_to_idx = cpu_to_be16(FW_VI_MAC_CMD_VALID |
FW_VI_MAC_CMD_IDX(idx));
memcpy(p->macaddr, addr, sizeof(p->macaddr));
ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
if (ret == 0) {
p = &rpl.u.exact[0];
ret = FW_VI_MAC_CMD_IDX_GET(be16_to_cpu(p->valid_to_idx));
if (ret >= FW_CLS_TCAM_NUM_ENTRIES)
ret = -ENOMEM;
}
return ret;
}
/**
* t4vf_set_addr_hash - program the MAC inexact-match hash filter
* @adapter: the adapter
* @viid: the Virtual Interface Identifier
* @ucast: whether the hash filter should also match unicast addresses
* @vec: the value to be written to the hash filter
* @sleep_ok: call is allowed to sleep
*
* Sets the 64-bit inexact-match hash filter for a virtual interface.
*/
int t4vf_set_addr_hash(struct adapter *adapter, unsigned int viid,
bool ucast, u64 vec, bool sleep_ok)
{
struct fw_vi_mac_cmd cmd;
size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
u.exact[0]), 16);
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) |
FW_CMD_REQUEST |
FW_CMD_WRITE |
FW_VI_ENABLE_CMD_VIID(viid));
cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN |
FW_VI_MAC_CMD_HASHUNIEN(ucast) |
FW_CMD_LEN16(len16));
cmd.u.hash.hashvec = cpu_to_be64(vec);
return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
}
/**
* t4vf_get_port_stats - collect "port" statistics
* @adapter: the adapter
* @pidx: the port index
* @s: the stats structure to fill
*
* Collect statistics for the "port"'s Virtual Interface.
*/
int t4vf_get_port_stats(struct adapter *adapter, int pidx,
struct t4vf_port_stats *s)
{
struct port_info *pi = adap2pinfo(adapter, pidx);
struct fw_vi_stats_vf fwstats;
unsigned int rem = VI_VF_NUM_STATS;
__be64 *fwsp = (__be64 *)&fwstats;
/*
* Grab the Virtual Interface statistics a chunk at a time via mailbox
* commands. We could use a Work Request and get all of them at once
* but that's an asynchronous interface which is awkward to use.
*/
while (rem) {
unsigned int ix = VI_VF_NUM_STATS - rem;
unsigned int nstats = min(6U, rem);
struct fw_vi_stats_cmd cmd, rpl;
size_t len = (offsetof(struct fw_vi_stats_cmd, u) +
sizeof(struct fw_vi_stats_ctl));
size_t len16 = DIV_ROUND_UP(len, 16);
int ret;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_STATS_CMD) |
FW_VI_STATS_CMD_VIID(pi->viid) |
FW_CMD_REQUEST |
FW_CMD_READ);
cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16));
cmd.u.ctl.nstats_ix =
cpu_to_be16(FW_VI_STATS_CMD_IX(ix) |
FW_VI_STATS_CMD_NSTATS(nstats));
ret = t4vf_wr_mbox_ns(adapter, &cmd, len, &rpl);
if (ret)
return ret;
memcpy(fwsp, &rpl.u.ctl.stat0, sizeof(__be64) * nstats);
rem -= nstats;
fwsp += nstats;
}
/*
* Translate firmware statistics into host native statistics.
*/
s->tx_bcast_bytes = be64_to_cpu(fwstats.tx_bcast_bytes);
s->tx_bcast_frames = be64_to_cpu(fwstats.tx_bcast_frames);
s->tx_mcast_bytes = be64_to_cpu(fwstats.tx_mcast_bytes);
s->tx_mcast_frames = be64_to_cpu(fwstats.tx_mcast_frames);
s->tx_ucast_bytes = be64_to_cpu(fwstats.tx_ucast_bytes);
s->tx_ucast_frames = be64_to_cpu(fwstats.tx_ucast_frames);
s->tx_drop_frames = be64_to_cpu(fwstats.tx_drop_frames);
s->tx_offload_bytes = be64_to_cpu(fwstats.tx_offload_bytes);
s->tx_offload_frames = be64_to_cpu(fwstats.tx_offload_frames);
s->rx_bcast_bytes = be64_to_cpu(fwstats.rx_bcast_bytes);
s->rx_bcast_frames = be64_to_cpu(fwstats.rx_bcast_frames);
s->rx_mcast_bytes = be64_to_cpu(fwstats.rx_mcast_bytes);
s->rx_mcast_frames = be64_to_cpu(fwstats.rx_mcast_frames);
s->rx_ucast_bytes = be64_to_cpu(fwstats.rx_ucast_bytes);
s->rx_ucast_frames = be64_to_cpu(fwstats.rx_ucast_frames);
s->rx_err_frames = be64_to_cpu(fwstats.rx_err_frames);
return 0;
}
/**
* t4vf_iq_free - free an ingress queue and its free lists
* @adapter: the adapter
* @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
* @iqid: ingress queue ID
* @fl0id: FL0 queue ID or 0xffff if no attached FL0
* @fl1id: FL1 queue ID or 0xffff if no attached FL1
*
* Frees an ingress queue and its associated free lists, if any.
*/
int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype,
unsigned int iqid, unsigned int fl0id, unsigned int fl1id)
{
struct fw_iq_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_IQ_CMD) |
FW_CMD_REQUEST |
FW_CMD_EXEC);
cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE |
FW_LEN16(cmd));
cmd.type_to_iqandstindex =
cpu_to_be32(FW_IQ_CMD_TYPE(iqtype));
cmd.iqid = cpu_to_be16(iqid);
cmd.fl0id = cpu_to_be16(fl0id);
cmd.fl1id = cpu_to_be16(fl1id);
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}
/**
* t4vf_eth_eq_free - free an Ethernet egress queue
* @adapter: the adapter
* @eqid: egress queue ID
*
* Frees an Ethernet egress queue.
*/
int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid)
{
struct fw_eq_eth_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_EQ_ETH_CMD) |
FW_CMD_REQUEST |
FW_CMD_EXEC);
cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE |
FW_LEN16(cmd));
cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID(eqid));
return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}
/**
* t4vf_handle_fw_rpl - process a firmware reply message
* @adapter: the adapter
* @rpl: start of the firmware message
*
* Processes a firmware message, such as link state change messages.
*/
int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl)
{
const struct fw_cmd_hdr *cmd_hdr = (const struct fw_cmd_hdr *)rpl;
u8 opcode = FW_CMD_OP_GET(be32_to_cpu(cmd_hdr->hi));
switch (opcode) {
case FW_PORT_CMD: {
/*
* Link/module state change message.
*/
const struct fw_port_cmd *port_cmd =
(const struct fw_port_cmd *)rpl;
u32 word;
int action, port_id, link_ok, speed, fc, pidx;
/*
* Extract various fields from port status change message.
*/
action = FW_PORT_CMD_ACTION_GET(
be32_to_cpu(port_cmd->action_to_len16));
if (action != FW_PORT_ACTION_GET_PORT_INFO) {
dev_err(adapter->pdev_dev,
"Unknown firmware PORT reply action %x\n",
action);
break;
}
port_id = FW_PORT_CMD_PORTID_GET(
be32_to_cpu(port_cmd->op_to_portid));
word = be32_to_cpu(port_cmd->u.info.lstatus_to_modtype);
link_ok = (word & FW_PORT_CMD_LSTATUS) != 0;
speed = 0;
fc = 0;
if (word & FW_PORT_CMD_RXPAUSE)
fc |= PAUSE_RX;
if (word & FW_PORT_CMD_TXPAUSE)
fc |= PAUSE_TX;
if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
speed = SPEED_100;
else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
speed = SPEED_1000;
else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
speed = SPEED_10000;
/*
* Scan all of our "ports" (Virtual Interfaces) looking for
* those bound to the physical port which has changed. If
* our recorded state doesn't match the current state,
* signal that change to the OS code.
*/
for_each_port(adapter, pidx) {
struct port_info *pi = adap2pinfo(adapter, pidx);
struct link_config *lc;
if (pi->port_id != port_id)
continue;
lc = &pi->link_cfg;
if (link_ok != lc->link_ok || speed != lc->speed ||
fc != lc->fc) {
/* something changed */
lc->link_ok = link_ok;
lc->speed = speed;
lc->fc = fc;
t4vf_os_link_changed(adapter, pidx, link_ok);
}
}
break;
}
default:
dev_err(adapter->pdev_dev, "Unknown firmware reply %X\n",
opcode);
}
return 0;
}
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