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linux/drivers/net/cxgb4/t4_hw.c
Dimitris Michailidis 23d88e1d3e cxgb4: extend VPD parsing 
Current code parses the VPD RO section for keywords but makes static
assumptions about the location of the section.  Remove them and parse
the VPD to find it.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16 13:16:04 -08:00

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/*
* This file is part of the Chelsio T4 Ethernet driver for Linux.
*
* Copyright (c) 2003-2010 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/init.h>
#include <linux/delay.h>
#include "cxgb4.h"
#include "t4_regs.h"
#include "t4fw_api.h"
/**
* t4_wait_op_done_val - wait until an operation is completed
* @adapter: the adapter performing the operation
* @reg: the register to check for completion
* @mask: a single-bit field within @reg that indicates completion
* @polarity: the value of the field when the operation is completed
* @attempts: number of check iterations
* @delay: delay in usecs between iterations
* @valp: where to store the value of the register at completion time
*
* Wait until an operation is completed by checking a bit in a register
* up to @attempts times. If @valp is not NULL the value of the register
* at the time it indicated completion is stored there. Returns 0 if the
* operation completes and -EAGAIN otherwise.
*/
static int t4_wait_op_done_val(struct adapter *adapter, int reg, u32 mask,
int polarity, int attempts, int delay, u32 *valp)
{
while (1) {
u32 val = t4_read_reg(adapter, reg);
if (!!(val & mask) == polarity) {
if (valp)
*valp = val;
return 0;
}
if (--attempts == 0)
return -EAGAIN;
if (delay)
udelay(delay);
}
}
static inline int t4_wait_op_done(struct adapter *adapter, int reg, u32 mask,
int polarity, int attempts, int delay)
{
return t4_wait_op_done_val(adapter, reg, mask, polarity, attempts,
delay, NULL);
}
/**
* t4_set_reg_field - set a register field to a value
* @adapter: the adapter to program
* @addr: the register address
* @mask: specifies the portion of the register to modify
* @val: the new value for the register field
*
* Sets a register field specified by the supplied mask to the
* given value.
*/
void t4_set_reg_field(struct adapter *adapter, unsigned int addr, u32 mask,
u32 val)
{
u32 v = t4_read_reg(adapter, addr) & ~mask;
t4_write_reg(adapter, addr, v | val);
(void) t4_read_reg(adapter, addr); /* flush */
}
/**
* t4_read_indirect - read indirectly addressed registers
* @adap: the adapter
* @addr_reg: register holding the indirect address
* @data_reg: register holding the value of the indirect register
* @vals: where the read register values are stored
* @nregs: how many indirect registers to read
* @start_idx: index of first indirect register to read
*
* Reads registers that are accessed indirectly through an address/data
* register pair.
*/
static void t4_read_indirect(struct adapter *adap, unsigned int addr_reg,
unsigned int data_reg, u32 *vals,
unsigned int nregs, unsigned int start_idx)
{
while (nregs--) {
t4_write_reg(adap, addr_reg, start_idx);
*vals++ = t4_read_reg(adap, data_reg);
start_idx++;
}
}
/*
* Get the reply to a mailbox command and store it in @rpl in big-endian order.
*/
static void get_mbox_rpl(struct adapter *adap, __be64 *rpl, int nflit,
u32 mbox_addr)
{
for ( ; nflit; nflit--, mbox_addr += 8)
*rpl++ = cpu_to_be64(t4_read_reg64(adap, mbox_addr));
}
/*
* Handle a FW assertion reported in a mailbox.
*/
static void fw_asrt(struct adapter *adap, u32 mbox_addr)
{
struct fw_debug_cmd asrt;
get_mbox_rpl(adap, (__be64 *)&asrt, sizeof(asrt) / 8, mbox_addr);
dev_alert(adap->pdev_dev,
"FW assertion at %.16s:%u, val0 %#x, val1 %#x\n",
asrt.u.assert.filename_0_7, ntohl(asrt.u.assert.line),
ntohl(asrt.u.assert.x), ntohl(asrt.u.assert.y));
}
static void dump_mbox(struct adapter *adap, int mbox, u32 data_reg)
{
dev_err(adap->pdev_dev,
"mbox %d: %llx %llx %llx %llx %llx %llx %llx %llx\n", mbox,
(unsigned long long)t4_read_reg64(adap, data_reg),
(unsigned long long)t4_read_reg64(adap, data_reg + 8),
(unsigned long long)t4_read_reg64(adap, data_reg + 16),
(unsigned long long)t4_read_reg64(adap, data_reg + 24),
(unsigned long long)t4_read_reg64(adap, data_reg + 32),
(unsigned long long)t4_read_reg64(adap, data_reg + 40),
(unsigned long long)t4_read_reg64(adap, data_reg + 48),
(unsigned long long)t4_read_reg64(adap, data_reg + 56));
}
/**
* t4_wr_mbox_meat - send a command to FW through the given mailbox
* @adap: the adapter
* @mbox: index of the mailbox to use
* @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 selected 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 %FW_CMD_MAX_TIMEOUT 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 t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
void *rpl, bool sleep_ok)
{
static const int delay[] = {
1, 1, 3, 5, 10, 10, 20, 50, 100, 200
};
u32 v;
u64 res;
int i, ms, delay_idx;
const __be64 *p = cmd;
u32 data_reg = PF_REG(mbox, CIM_PF_MAILBOX_DATA);
u32 ctl_reg = PF_REG(mbox, CIM_PF_MAILBOX_CTRL);
if ((size & 15) || size > MBOX_LEN)
return -EINVAL;
/*
* If the device is off-line, as in EEH, commands will time out.
* Fail them early so we don't waste time waiting.
*/
if (adap->pdev->error_state != pci_channel_io_normal)
return -EIO;
v = MBOWNER_GET(t4_read_reg(adap, ctl_reg));
for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++)
v = MBOWNER_GET(t4_read_reg(adap, ctl_reg));
if (v != MBOX_OWNER_DRV)
return v ? -EBUSY : -ETIMEDOUT;
for (i = 0; i < size; i += 8)
t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p++));
t4_write_reg(adap, ctl_reg, MBMSGVALID | MBOWNER(MBOX_OWNER_FW));
t4_read_reg(adap, ctl_reg); /* flush write */
delay_idx = 0;
ms = delay[0];
for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) {
if (sleep_ok) {
ms = delay[delay_idx]; /* last element may repeat */
if (delay_idx < ARRAY_SIZE(delay) - 1)
delay_idx++;
msleep(ms);
} else
mdelay(ms);
v = t4_read_reg(adap, ctl_reg);
if (MBOWNER_GET(v) == MBOX_OWNER_DRV) {
if (!(v & MBMSGVALID)) {
t4_write_reg(adap, ctl_reg, 0);
continue;
}
res = t4_read_reg64(adap, data_reg);
if (FW_CMD_OP_GET(res >> 32) == FW_DEBUG_CMD) {
fw_asrt(adap, data_reg);
res = FW_CMD_RETVAL(EIO);
} else if (rpl)
get_mbox_rpl(adap, rpl, size / 8, data_reg);
if (FW_CMD_RETVAL_GET((int)res))
dump_mbox(adap, mbox, data_reg);
t4_write_reg(adap, ctl_reg, 0);
return -FW_CMD_RETVAL_GET((int)res);
}
}
dump_mbox(adap, mbox, data_reg);
dev_err(adap->pdev_dev, "command %#x in mailbox %d timed out\n",
*(const u8 *)cmd, mbox);
return -ETIMEDOUT;
}
/**
* t4_mc_read - read from MC through backdoor accesses
* @adap: the adapter
* @addr: address of first byte requested
* @data: 64 bytes of data containing the requested address
* @ecc: where to store the corresponding 64-bit ECC word
*
* Read 64 bytes of data from MC starting at a 64-byte-aligned address
* that covers the requested address @addr. If @parity is not %NULL it
* is assigned the 64-bit ECC word for the read data.
*/
int t4_mc_read(struct adapter *adap, u32 addr, __be32 *data, u64 *ecc)
{
int i;
if (t4_read_reg(adap, MC_BIST_CMD) & START_BIST)
return -EBUSY;
t4_write_reg(adap, MC_BIST_CMD_ADDR, addr & ~0x3fU);
t4_write_reg(adap, MC_BIST_CMD_LEN, 64);
t4_write_reg(adap, MC_BIST_DATA_PATTERN, 0xc);
t4_write_reg(adap, MC_BIST_CMD, BIST_OPCODE(1) | START_BIST |
BIST_CMD_GAP(1));
i = t4_wait_op_done(adap, MC_BIST_CMD, START_BIST, 0, 10, 1);
if (i)
return i;
#define MC_DATA(i) MC_BIST_STATUS_REG(MC_BIST_STATUS_RDATA, i)
for (i = 15; i >= 0; i--)
*data++ = htonl(t4_read_reg(adap, MC_DATA(i)));
if (ecc)
*ecc = t4_read_reg64(adap, MC_DATA(16));
#undef MC_DATA
return 0;
}
/**
* t4_edc_read - read from EDC through backdoor accesses
* @adap: the adapter
* @idx: which EDC to access
* @addr: address of first byte requested
* @data: 64 bytes of data containing the requested address
* @ecc: where to store the corresponding 64-bit ECC word
*
* Read 64 bytes of data from EDC starting at a 64-byte-aligned address
* that covers the requested address @addr. If @parity is not %NULL it
* is assigned the 64-bit ECC word for the read data.
*/
int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
{
int i;
idx *= EDC_STRIDE;
if (t4_read_reg(adap, EDC_BIST_CMD + idx) & START_BIST)
return -EBUSY;
t4_write_reg(adap, EDC_BIST_CMD_ADDR + idx, addr & ~0x3fU);
t4_write_reg(adap, EDC_BIST_CMD_LEN + idx, 64);
t4_write_reg(adap, EDC_BIST_DATA_PATTERN + idx, 0xc);
t4_write_reg(adap, EDC_BIST_CMD + idx,
BIST_OPCODE(1) | BIST_CMD_GAP(1) | START_BIST);
i = t4_wait_op_done(adap, EDC_BIST_CMD + idx, START_BIST, 0, 10, 1);
if (i)
return i;
#define EDC_DATA(i) (EDC_BIST_STATUS_REG(EDC_BIST_STATUS_RDATA, i) + idx)
for (i = 15; i >= 0; i--)
*data++ = htonl(t4_read_reg(adap, EDC_DATA(i)));
if (ecc)
*ecc = t4_read_reg64(adap, EDC_DATA(16));
#undef EDC_DATA
return 0;
}
#define EEPROM_STAT_ADDR 0x7bfc
#define VPD_BASE 0
#define VPD_LEN 512
/**
* t4_seeprom_wp - enable/disable EEPROM write protection
* @adapter: the adapter
* @enable: whether to enable or disable write protection
*
* Enables or disables write protection on the serial EEPROM.
*/
int t4_seeprom_wp(struct adapter *adapter, bool enable)
{
unsigned int v = enable ? 0xc : 0;
int ret = pci_write_vpd(adapter->pdev, EEPROM_STAT_ADDR, 4, &v);
return ret < 0 ? ret : 0;
}
/**
* get_vpd_params - read VPD parameters from VPD EEPROM
* @adapter: adapter to read
* @p: where to store the parameters
*
* Reads card parameters stored in VPD EEPROM.
*/
static int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
{
int i, ret;
int ec, sn;
u8 vpd[VPD_LEN], csum;
unsigned int vpdr_len, kw_offset, id_len;
ret = pci_read_vpd(adapter->pdev, VPD_BASE, sizeof(vpd), vpd);
if (ret < 0)
return ret;
if (vpd[0] != PCI_VPD_LRDT_ID_STRING) {
dev_err(adapter->pdev_dev, "missing VPD ID string\n");
return -EINVAL;
}
id_len = pci_vpd_lrdt_size(vpd);
if (id_len > ID_LEN)
id_len = ID_LEN;
i = pci_vpd_find_tag(vpd, 0, VPD_LEN, PCI_VPD_LRDT_RO_DATA);
if (i < 0) {
dev_err(adapter->pdev_dev, "missing VPD-R section\n");
return -EINVAL;
}
vpdr_len = pci_vpd_lrdt_size(&vpd[i]);
kw_offset = i + PCI_VPD_LRDT_TAG_SIZE;
if (vpdr_len + kw_offset > VPD_LEN) {
dev_err(adapter->pdev_dev, "bad VPD-R length %u\n", vpdr_len);
return -EINVAL;
}
#define FIND_VPD_KW(var, name) do { \
var = pci_vpd_find_info_keyword(vpd, kw_offset, vpdr_len, name); \
if (var < 0) { \
dev_err(adapter->pdev_dev, "missing VPD keyword " name "\n"); \
return -EINVAL; \
} \
var += PCI_VPD_INFO_FLD_HDR_SIZE; \
} while (0)
FIND_VPD_KW(i, "RV");
for (csum = 0; i >= 0; i--)
csum += vpd[i];
if (csum) {
dev_err(adapter->pdev_dev,
"corrupted VPD EEPROM, actual csum %u\n", csum);
return -EINVAL;
}
FIND_VPD_KW(ec, "EC");
FIND_VPD_KW(sn, "SN");
#undef FIND_VPD_KW
memcpy(p->id, vpd + PCI_VPD_LRDT_TAG_SIZE, id_len);
strim(p->id);
memcpy(p->ec, vpd + ec, EC_LEN);
strim(p->ec);
i = pci_vpd_info_field_size(vpd + sn - PCI_VPD_INFO_FLD_HDR_SIZE);
memcpy(p->sn, vpd + sn, min(i, SERNUM_LEN));
strim(p->sn);
return 0;
}
/* serial flash and firmware constants */
enum {
SF_ATTEMPTS = 10, /* max retries for SF operations */
/* flash command opcodes */
SF_PROG_PAGE = 2, /* program page */
SF_WR_DISABLE = 4, /* disable writes */
SF_RD_STATUS = 5, /* read status register */
SF_WR_ENABLE = 6, /* enable writes */
SF_RD_DATA_FAST = 0xb, /* read flash */
SF_RD_ID = 0x9f, /* read ID */
SF_ERASE_SECTOR = 0xd8, /* erase sector */
FW_MAX_SIZE = 512 * 1024,
};
/**
* sf1_read - read data from the serial flash
* @adapter: the adapter
* @byte_cnt: number of bytes to read
* @cont: whether another operation will be chained
* @lock: whether to lock SF for PL access only
* @valp: where to store the read data
*
* Reads up to 4 bytes of data from the serial flash. The location of
* the read needs to be specified prior to calling this by issuing the
* appropriate commands to the serial flash.
*/
static int sf1_read(struct adapter *adapter, unsigned int byte_cnt, int cont,
int lock, u32 *valp)
{
int ret;
if (!byte_cnt || byte_cnt > 4)
return -EINVAL;
if (t4_read_reg(adapter, SF_OP) & BUSY)
return -EBUSY;
cont = cont ? SF_CONT : 0;
lock = lock ? SF_LOCK : 0;
t4_write_reg(adapter, SF_OP, lock | cont | BYTECNT(byte_cnt - 1));
ret = t4_wait_op_done(adapter, SF_OP, BUSY, 0, SF_ATTEMPTS, 5);
if (!ret)
*valp = t4_read_reg(adapter, SF_DATA);
return ret;
}
/**
* sf1_write - write data to the serial flash
* @adapter: the adapter
* @byte_cnt: number of bytes to write
* @cont: whether another operation will be chained
* @lock: whether to lock SF for PL access only
* @val: value to write
*
* Writes up to 4 bytes of data to the serial flash. The location of
* the write needs to be specified prior to calling this by issuing the
* appropriate commands to the serial flash.
*/
static int sf1_write(struct adapter *adapter, unsigned int byte_cnt, int cont,
int lock, u32 val)
{
if (!byte_cnt || byte_cnt > 4)
return -EINVAL;
if (t4_read_reg(adapter, SF_OP) & BUSY)
return -EBUSY;
cont = cont ? SF_CONT : 0;
lock = lock ? SF_LOCK : 0;
t4_write_reg(adapter, SF_DATA, val);
t4_write_reg(adapter, SF_OP, lock |
cont | BYTECNT(byte_cnt - 1) | OP_WR);
return t4_wait_op_done(adapter, SF_OP, BUSY, 0, SF_ATTEMPTS, 5);
}
/**
* flash_wait_op - wait for a flash operation to complete
* @adapter: the adapter
* @attempts: max number of polls of the status register
* @delay: delay between polls in ms
*
* Wait for a flash operation to complete by polling the status register.
*/
static int flash_wait_op(struct adapter *adapter, int attempts, int delay)
{
int ret;
u32 status;
while (1) {
if ((ret = sf1_write(adapter, 1, 1, 1, SF_RD_STATUS)) != 0 ||
(ret = sf1_read(adapter, 1, 0, 1, &status)) != 0)
return ret;
if (!(status & 1))
return 0;
if (--attempts == 0)
return -EAGAIN;
if (delay)
msleep(delay);
}
}
/**
* t4_read_flash - read words from serial flash
* @adapter: the adapter
* @addr: the start address for the read
* @nwords: how many 32-bit words to read
* @data: where to store the read data
* @byte_oriented: whether to store data as bytes or as words
*
* Read the specified number of 32-bit words from the serial flash.
* If @byte_oriented is set the read data is stored as a byte array
* (i.e., big-endian), otherwise as 32-bit words in the platform's
* natural endianess.
*/
static int t4_read_flash(struct adapter *adapter, unsigned int addr,
unsigned int nwords, u32 *data, int byte_oriented)
{
int ret;
if (addr + nwords * sizeof(u32) > adapter->params.sf_size || (addr & 3))
return -EINVAL;
addr = swab32(addr) | SF_RD_DATA_FAST;
if ((ret = sf1_write(adapter, 4, 1, 0, addr)) != 0 ||
(ret = sf1_read(adapter, 1, 1, 0, data)) != 0)
return ret;
for ( ; nwords; nwords--, data++) {
ret = sf1_read(adapter, 4, nwords > 1, nwords == 1, data);
if (nwords == 1)
t4_write_reg(adapter, SF_OP, 0); /* unlock SF */
if (ret)
return ret;
if (byte_oriented)
*data = htonl(*data);
}
return 0;
}
/**
* t4_write_flash - write up to a page of data to the serial flash
* @adapter: the adapter
* @addr: the start address to write
* @n: length of data to write in bytes
* @data: the data to write
*
* Writes up to a page of data (256 bytes) to the serial flash starting
* at the given address. All the data must be written to the same page.
*/
static int t4_write_flash(struct adapter *adapter, unsigned int addr,
unsigned int n, const u8 *data)
{
int ret;
u32 buf[64];
unsigned int i, c, left, val, offset = addr & 0xff;
if (addr >= adapter->params.sf_size || offset + n > SF_PAGE_SIZE)
return -EINVAL;
val = swab32(addr) | SF_PROG_PAGE;
if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
(ret = sf1_write(adapter, 4, 1, 1, val)) != 0)
goto unlock;
for (left = n; left; left -= c) {
c = min(left, 4U);
for (val = 0, i = 0; i < c; ++i)
val = (val << 8) + *data++;
ret = sf1_write(adapter, c, c != left, 1, val);
if (ret)
goto unlock;
}
ret = flash_wait_op(adapter, 8, 1);
if (ret)
goto unlock;
t4_write_reg(adapter, SF_OP, 0); /* unlock SF */
/* Read the page to verify the write succeeded */
ret = t4_read_flash(adapter, addr & ~0xff, ARRAY_SIZE(buf), buf, 1);
if (ret)
return ret;
if (memcmp(data - n, (u8 *)buf + offset, n)) {
dev_err(adapter->pdev_dev,
"failed to correctly write the flash page at %#x\n",
addr);
return -EIO;
}
return 0;
unlock:
t4_write_reg(adapter, SF_OP, 0); /* unlock SF */
return ret;
}
/**
* get_fw_version - read the firmware version
* @adapter: the adapter
* @vers: where to place the version
*
* Reads the FW version from flash.
*/
static int get_fw_version(struct adapter *adapter, u32 *vers)
{
return t4_read_flash(adapter, adapter->params.sf_fw_start +
offsetof(struct fw_hdr, fw_ver), 1, vers, 0);
}
/**
* get_tp_version - read the TP microcode version
* @adapter: the adapter
* @vers: where to place the version
*
* Reads the TP microcode version from flash.
*/
static int get_tp_version(struct adapter *adapter, u32 *vers)
{
return t4_read_flash(adapter, adapter->params.sf_fw_start +
offsetof(struct fw_hdr, tp_microcode_ver),
1, vers, 0);
}
/**
* t4_check_fw_version - check if the FW is compatible with this driver
* @adapter: the adapter
*
* Checks if an adapter's FW is compatible with the driver. Returns 0
* if there's exact match, a negative error if the version could not be
* read or there's a major version mismatch, and a positive value if the
* expected major version is found but there's a minor version mismatch.
*/
int t4_check_fw_version(struct adapter *adapter)
{
u32 api_vers[2];
int ret, major, minor, micro;
ret = get_fw_version(adapter, &adapter->params.fw_vers);
if (!ret)
ret = get_tp_version(adapter, &adapter->params.tp_vers);
if (!ret)
ret = t4_read_flash(adapter, adapter->params.sf_fw_start +
offsetof(struct fw_hdr, intfver_nic),
2, api_vers, 1);
if (ret)
return ret;
major = FW_HDR_FW_VER_MAJOR_GET(adapter->params.fw_vers);
minor = FW_HDR_FW_VER_MINOR_GET(adapter->params.fw_vers);
micro = FW_HDR_FW_VER_MICRO_GET(adapter->params.fw_vers);
memcpy(adapter->params.api_vers, api_vers,
sizeof(adapter->params.api_vers));
if (major != FW_VERSION_MAJOR) { /* major mismatch - fail */
dev_err(adapter->pdev_dev,
"card FW has major version %u, driver wants %u\n",
major, FW_VERSION_MAJOR);
return -EINVAL;
}
if (minor == FW_VERSION_MINOR && micro == FW_VERSION_MICRO)
return 0; /* perfect match */
/* Minor/micro version mismatch. Report it but often it's OK. */
return 1;
}
/**
* t4_flash_erase_sectors - erase a range of flash sectors
* @adapter: the adapter
* @start: the first sector to erase
* @end: the last sector to erase
*
* Erases the sectors in the given inclusive range.
*/
static int t4_flash_erase_sectors(struct adapter *adapter, int start, int end)
{
int ret = 0;
while (start <= end) {
if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
(ret = sf1_write(adapter, 4, 0, 1,
SF_ERASE_SECTOR | (start << 8))) != 0 ||
(ret = flash_wait_op(adapter, 14, 500)) != 0) {
dev_err(adapter->pdev_dev,
"erase of flash sector %d failed, error %d\n",
start, ret);
break;
}
start++;
}
t4_write_reg(adapter, SF_OP, 0); /* unlock SF */
return ret;
}
/**
* t4_load_fw - download firmware
* @adap: the adapter
* @fw_data: the firmware image to write
* @size: image size
*
* Write the supplied firmware image to the card's serial flash.
*/
int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size)
{
u32 csum;
int ret, addr;
unsigned int i;
u8 first_page[SF_PAGE_SIZE];
const u32 *p = (const u32 *)fw_data;
const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data;
unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;
unsigned int fw_img_start = adap->params.sf_fw_start;
unsigned int fw_start_sec = fw_img_start / sf_sec_size;
if (!size) {
dev_err(adap->pdev_dev, "FW image has no data\n");
return -EINVAL;
}
if (size & 511) {
dev_err(adap->pdev_dev,
"FW image size not multiple of 512 bytes\n");
return -EINVAL;
}
if (ntohs(hdr->len512) * 512 != size) {
dev_err(adap->pdev_dev,
"FW image size differs from size in FW header\n");
return -EINVAL;
}
if (size > FW_MAX_SIZE) {
dev_err(adap->pdev_dev, "FW image too large, max is %u bytes\n",
FW_MAX_SIZE);
return -EFBIG;
}
for (csum = 0, i = 0; i < size / sizeof(csum); i++)
csum += ntohl(p[i]);
if (csum != 0xffffffff) {
dev_err(adap->pdev_dev,
"corrupted firmware image, checksum %#x\n", csum);
return -EINVAL;
}
i = DIV_ROUND_UP(size, sf_sec_size); /* # of sectors spanned */
ret = t4_flash_erase_sectors(adap, fw_start_sec, fw_start_sec + i - 1);
if (ret)
goto out;
/*
* We write the correct version at the end so the driver can see a bad
* version if the FW write fails. Start by writing a copy of the
* first page with a bad version.
*/
memcpy(first_page, fw_data, SF_PAGE_SIZE);
((struct fw_hdr *)first_page)->fw_ver = htonl(0xffffffff);
ret = t4_write_flash(adap, fw_img_start, SF_PAGE_SIZE, first_page);
if (ret)
goto out;
addr = fw_img_start;
for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) {
addr += SF_PAGE_SIZE;
fw_data += SF_PAGE_SIZE;
ret = t4_write_flash(adap, addr, SF_PAGE_SIZE, fw_data);
if (ret)
goto out;
}
ret = t4_write_flash(adap,
fw_img_start + offsetof(struct fw_hdr, fw_ver),
sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver);
out:
if (ret)
dev_err(adap->pdev_dev, "firmware download failed, error %d\n",
ret);
return ret;
}
#define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\
FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_ANEG)
/**
* t4_link_start - apply link configuration to MAC/PHY
* @phy: the PHY to setup
* @mac: the MAC to setup
* @lc: the requested link configuration
*
* Set up a port's MAC and PHY according to a desired link configuration.
* - If the PHY can auto-negotiate first decide what to advertise, then
* enable/disable auto-negotiation as desired, and reset.
* - If the PHY does not auto-negotiate just reset it.
* - If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
* otherwise do it later based on the outcome of auto-negotiation.
*/
int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port,
struct link_config *lc)
{
struct fw_port_cmd c;
unsigned int fc = 0, mdi = FW_PORT_MDI(FW_PORT_MDI_AUTO);
lc->link_ok = 0;
if (lc->requested_fc & PAUSE_RX)
fc |= FW_PORT_CAP_FC_RX;
if (lc->requested_fc & PAUSE_TX)
fc |= FW_PORT_CAP_FC_TX;
memset(&c, 0, sizeof(c));
c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) | FW_CMD_REQUEST |
FW_CMD_EXEC | FW_PORT_CMD_PORTID(port));
c.action_to_len16 = htonl(FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) |
FW_LEN16(c));
if (!(lc->supported & FW_PORT_CAP_ANEG)) {
c.u.l1cfg.rcap = htonl((lc->supported & ADVERT_MASK) | fc);
lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
} else if (lc->autoneg == AUTONEG_DISABLE) {
c.u.l1cfg.rcap = htonl(lc->requested_speed | fc | mdi);
lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
} else
c.u.l1cfg.rcap = htonl(lc->advertising | fc | mdi);
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_restart_aneg - restart autonegotiation
* @adap: the adapter
* @mbox: mbox to use for the FW command
* @port: the port id
*
* Restarts autonegotiation for the selected port.
*/
int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port)
{
struct fw_port_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) | FW_CMD_REQUEST |
FW_CMD_EXEC | FW_PORT_CMD_PORTID(port));
c.action_to_len16 = htonl(FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) |
FW_LEN16(c));
c.u.l1cfg.rcap = htonl(FW_PORT_CAP_ANEG);
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
struct intr_info {
unsigned int mask; /* bits to check in interrupt status */
const char *msg; /* message to print or NULL */
short stat_idx; /* stat counter to increment or -1 */
unsigned short fatal; /* whether the condition reported is fatal */
};
/**
* t4_handle_intr_status - table driven interrupt handler
* @adapter: the adapter that generated the interrupt
* @reg: the interrupt status register to process
* @acts: table of interrupt actions
*
* A table driven interrupt handler that applies a set of masks to an
* interrupt status word and performs the corresponding actions if the
* interrupts described by the mask have occured. The actions include
* optionally emitting a warning or alert message. The table is terminated
* by an entry specifying mask 0. Returns the number of fatal interrupt
* conditions.
*/
static int t4_handle_intr_status(struct adapter *adapter, unsigned int reg,
const struct intr_info *acts)
{
int fatal = 0;
unsigned int mask = 0;
unsigned int status = t4_read_reg(adapter, reg);
for ( ; acts->mask; ++acts) {
if (!(status & acts->mask))
continue;
if (acts->fatal) {
fatal++;
dev_alert(adapter->pdev_dev, "%s (0x%x)\n", acts->msg,
status & acts->mask);
} else if (acts->msg && printk_ratelimit())
dev_warn(adapter->pdev_dev, "%s (0x%x)\n", acts->msg,
status & acts->mask);
mask |= acts->mask;
}
status &= mask;
if (status) /* clear processed interrupts */
t4_write_reg(adapter, reg, status);
return fatal;
}
/*
* Interrupt handler for the PCIE module.
*/
static void pcie_intr_handler(struct adapter *adapter)
{
static const struct intr_info sysbus_intr_info[] = {
{ RNPP, "RXNP array parity error", -1, 1 },
{ RPCP, "RXPC array parity error", -1, 1 },
{ RCIP, "RXCIF array parity error", -1, 1 },
{ RCCP, "Rx completions control array parity error", -1, 1 },
{ RFTP, "RXFT array parity error", -1, 1 },
{ 0 }
};
static const struct intr_info pcie_port_intr_info[] = {
{ TPCP, "TXPC array parity error", -1, 1 },
{ TNPP, "TXNP array parity error", -1, 1 },
{ TFTP, "TXFT array parity error", -1, 1 },
{ TCAP, "TXCA array parity error", -1, 1 },
{ TCIP, "TXCIF array parity error", -1, 1 },
{ RCAP, "RXCA array parity error", -1, 1 },
{ OTDD, "outbound request TLP discarded", -1, 1 },
{ RDPE, "Rx data parity error", -1, 1 },
{ TDUE, "Tx uncorrectable data error", -1, 1 },
{ 0 }
};
static const struct intr_info pcie_intr_info[] = {
{ MSIADDRLPERR, "MSI AddrL parity error", -1, 1 },
{ MSIADDRHPERR, "MSI AddrH parity error", -1, 1 },
{ MSIDATAPERR, "MSI data parity error", -1, 1 },
{ MSIXADDRLPERR, "MSI-X AddrL parity error", -1, 1 },
{ MSIXADDRHPERR, "MSI-X AddrH parity error", -1, 1 },
{ MSIXDATAPERR, "MSI-X data parity error", -1, 1 },
{ MSIXDIPERR, "MSI-X DI parity error", -1, 1 },
{ PIOCPLPERR, "PCI PIO completion FIFO parity error", -1, 1 },
{ PIOREQPERR, "PCI PIO request FIFO parity error", -1, 1 },
{ TARTAGPERR, "PCI PCI target tag FIFO parity error", -1, 1 },
{ CCNTPERR, "PCI CMD channel count parity error", -1, 1 },
{ CREQPERR, "PCI CMD channel request parity error", -1, 1 },
{ CRSPPERR, "PCI CMD channel response parity error", -1, 1 },
{ DCNTPERR, "PCI DMA channel count parity error", -1, 1 },
{ DREQPERR, "PCI DMA channel request parity error", -1, 1 },
{ DRSPPERR, "PCI DMA channel response parity error", -1, 1 },
{ HCNTPERR, "PCI HMA channel count parity error", -1, 1 },
{ HREQPERR, "PCI HMA channel request parity error", -1, 1 },
{ HRSPPERR, "PCI HMA channel response parity error", -1, 1 },
{ CFGSNPPERR, "PCI config snoop FIFO parity error", -1, 1 },
{ FIDPERR, "PCI FID parity error", -1, 1 },
{ INTXCLRPERR, "PCI INTx clear parity error", -1, 1 },
{ MATAGPERR, "PCI MA tag parity error", -1, 1 },
{ PIOTAGPERR, "PCI PIO tag parity error", -1, 1 },
{ RXCPLPERR, "PCI Rx completion parity error", -1, 1 },
{ RXWRPERR, "PCI Rx write parity error", -1, 1 },
{ RPLPERR, "PCI replay buffer parity error", -1, 1 },
{ PCIESINT, "PCI core secondary fault", -1, 1 },
{ PCIEPINT, "PCI core primary fault", -1, 1 },
{ UNXSPLCPLERR, "PCI unexpected split completion error", -1, 0 },
{ 0 }
};
int fat;
fat = t4_handle_intr_status(adapter,
PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS,
sysbus_intr_info) +
t4_handle_intr_status(adapter,
PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS,
pcie_port_intr_info) +
t4_handle_intr_status(adapter, PCIE_INT_CAUSE, pcie_intr_info);
if (fat)
t4_fatal_err(adapter);
}
/*
* TP interrupt handler.
*/
static void tp_intr_handler(struct adapter *adapter)
{
static const struct intr_info tp_intr_info[] = {
{ 0x3fffffff, "TP parity error", -1, 1 },
{ FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1 },
{ 0 }
};
if (t4_handle_intr_status(adapter, TP_INT_CAUSE, tp_intr_info))
t4_fatal_err(adapter);
}
/*
* SGE interrupt handler.
*/
static void sge_intr_handler(struct adapter *adapter)
{
u64 v;
static const struct intr_info sge_intr_info[] = {
{ ERR_CPL_EXCEED_IQE_SIZE,
"SGE received CPL exceeding IQE size", -1, 1 },
{ ERR_INVALID_CIDX_INC,
"SGE GTS CIDX increment too large", -1, 0 },
{ ERR_CPL_OPCODE_0, "SGE received 0-length CPL", -1, 0 },
{ ERR_DROPPED_DB, "SGE doorbell dropped", -1, 0 },
{ ERR_DATA_CPL_ON_HIGH_QID1 | ERR_DATA_CPL_ON_HIGH_QID0,
"SGE IQID > 1023 received CPL for FL", -1, 0 },
{ ERR_BAD_DB_PIDX3, "SGE DBP 3 pidx increment too large", -1,
0 },
{ ERR_BAD_DB_PIDX2, "SGE DBP 2 pidx increment too large", -1,
0 },
{ ERR_BAD_DB_PIDX1, "SGE DBP 1 pidx increment too large", -1,
0 },
{ ERR_BAD_DB_PIDX0, "SGE DBP 0 pidx increment too large", -1,
0 },
{ ERR_ING_CTXT_PRIO,
"SGE too many priority ingress contexts", -1, 0 },
{ ERR_EGR_CTXT_PRIO,
"SGE too many priority egress contexts", -1, 0 },
{ INGRESS_SIZE_ERR, "SGE illegal ingress QID", -1, 0 },
{ EGRESS_SIZE_ERR, "SGE illegal egress QID", -1, 0 },
{ 0 }
};
v = (u64)t4_read_reg(adapter, SGE_INT_CAUSE1) |
((u64)t4_read_reg(adapter, SGE_INT_CAUSE2) << 32);
if (v) {
dev_alert(adapter->pdev_dev, "SGE parity error (%#llx)\n",
(unsigned long long)v);
t4_write_reg(adapter, SGE_INT_CAUSE1, v);
t4_write_reg(adapter, SGE_INT_CAUSE2, v >> 32);
}
if (t4_handle_intr_status(adapter, SGE_INT_CAUSE3, sge_intr_info) ||
v != 0)
t4_fatal_err(adapter);
}
/*
* CIM interrupt handler.
*/
static void cim_intr_handler(struct adapter *adapter)
{
static const struct intr_info cim_intr_info[] = {
{ PREFDROPINT, "CIM control register prefetch drop", -1, 1 },
{ OBQPARERR, "CIM OBQ parity error", -1, 1 },
{ IBQPARERR, "CIM IBQ parity error", -1, 1 },
{ MBUPPARERR, "CIM mailbox uP parity error", -1, 1 },
{ MBHOSTPARERR, "CIM mailbox host parity error", -1, 1 },
{ TIEQINPARERRINT, "CIM TIEQ outgoing parity error", -1, 1 },
{ TIEQOUTPARERRINT, "CIM TIEQ incoming parity error", -1, 1 },
{ 0 }
};
static const struct intr_info cim_upintr_info[] = {
{ RSVDSPACEINT, "CIM reserved space access", -1, 1 },
{ ILLTRANSINT, "CIM illegal transaction", -1, 1 },
{ ILLWRINT, "CIM illegal write", -1, 1 },
{ ILLRDINT, "CIM illegal read", -1, 1 },
{ ILLRDBEINT, "CIM illegal read BE", -1, 1 },
{ ILLWRBEINT, "CIM illegal write BE", -1, 1 },
{ SGLRDBOOTINT, "CIM single read from boot space", -1, 1 },
{ SGLWRBOOTINT, "CIM single write to boot space", -1, 1 },
{ BLKWRBOOTINT, "CIM block write to boot space", -1, 1 },
{ SGLRDFLASHINT, "CIM single read from flash space", -1, 1 },
{ SGLWRFLASHINT, "CIM single write to flash space", -1, 1 },
{ BLKWRFLASHINT, "CIM block write to flash space", -1, 1 },
{ SGLRDEEPROMINT, "CIM single EEPROM read", -1, 1 },
{ SGLWREEPROMINT, "CIM single EEPROM write", -1, 1 },
{ BLKRDEEPROMINT, "CIM block EEPROM read", -1, 1 },
{ BLKWREEPROMINT, "CIM block EEPROM write", -1, 1 },
{ SGLRDCTLINT , "CIM single read from CTL space", -1, 1 },
{ SGLWRCTLINT , "CIM single write to CTL space", -1, 1 },
{ BLKRDCTLINT , "CIM block read from CTL space", -1, 1 },
{ BLKWRCTLINT , "CIM block write to CTL space", -1, 1 },
{ SGLRDPLINT , "CIM single read from PL space", -1, 1 },
{ SGLWRPLINT , "CIM single write to PL space", -1, 1 },
{ BLKRDPLINT , "CIM block read from PL space", -1, 1 },
{ BLKWRPLINT , "CIM block write to PL space", -1, 1 },
{ REQOVRLOOKUPINT , "CIM request FIFO overwrite", -1, 1 },
{ RSPOVRLOOKUPINT , "CIM response FIFO overwrite", -1, 1 },
{ TIMEOUTINT , "CIM PIF timeout", -1, 1 },
{ TIMEOUTMAINT , "CIM PIF MA timeout", -1, 1 },
{ 0 }
};
int fat;
fat = t4_handle_intr_status(adapter, CIM_HOST_INT_CAUSE,
cim_intr_info) +
t4_handle_intr_status(adapter, CIM_HOST_UPACC_INT_CAUSE,
cim_upintr_info);
if (fat)
t4_fatal_err(adapter);
}
/*
* ULP RX interrupt handler.
*/
static void ulprx_intr_handler(struct adapter *adapter)
{
static const struct intr_info ulprx_intr_info[] = {
{ 0x1800000, "ULPRX context error", -1, 1 },
{ 0x7fffff, "ULPRX parity error", -1, 1 },
{ 0 }
};
if (t4_handle_intr_status(adapter, ULP_RX_INT_CAUSE, ulprx_intr_info))
t4_fatal_err(adapter);
}
/*
* ULP TX interrupt handler.
*/
static void ulptx_intr_handler(struct adapter *adapter)
{
static const struct intr_info ulptx_intr_info[] = {
{ PBL_BOUND_ERR_CH3, "ULPTX channel 3 PBL out of bounds", -1,
0 },
{ PBL_BOUND_ERR_CH2, "ULPTX channel 2 PBL out of bounds", -1,
0 },
{ PBL_BOUND_ERR_CH1, "ULPTX channel 1 PBL out of bounds", -1,
0 },
{ PBL_BOUND_ERR_CH0, "ULPTX channel 0 PBL out of bounds", -1,
0 },
{ 0xfffffff, "ULPTX parity error", -1, 1 },
{ 0 }
};
if (t4_handle_intr_status(adapter, ULP_TX_INT_CAUSE, ulptx_intr_info))
t4_fatal_err(adapter);
}
/*
* PM TX interrupt handler.
*/
static void pmtx_intr_handler(struct adapter *adapter)
{
static const struct intr_info pmtx_intr_info[] = {
{ PCMD_LEN_OVFL0, "PMTX channel 0 pcmd too large", -1, 1 },
{ PCMD_LEN_OVFL1, "PMTX channel 1 pcmd too large", -1, 1 },
{ PCMD_LEN_OVFL2, "PMTX channel 2 pcmd too large", -1, 1 },
{ ZERO_C_CMD_ERROR, "PMTX 0-length pcmd", -1, 1 },
{ PMTX_FRAMING_ERROR, "PMTX framing error", -1, 1 },
{ OESPI_PAR_ERROR, "PMTX oespi parity error", -1, 1 },
{ DB_OPTIONS_PAR_ERROR, "PMTX db_options parity error", -1, 1 },
{ ICSPI_PAR_ERROR, "PMTX icspi parity error", -1, 1 },
{ C_PCMD_PAR_ERROR, "PMTX c_pcmd parity error", -1, 1},
{ 0 }
};
if (t4_handle_intr_status(adapter, PM_TX_INT_CAUSE, pmtx_intr_info))
t4_fatal_err(adapter);
}
/*
* PM RX interrupt handler.
*/
static void pmrx_intr_handler(struct adapter *adapter)
{
static const struct intr_info pmrx_intr_info[] = {
{ ZERO_E_CMD_ERROR, "PMRX 0-length pcmd", -1, 1 },
{ PMRX_FRAMING_ERROR, "PMRX framing error", -1, 1 },
{ OCSPI_PAR_ERROR, "PMRX ocspi parity error", -1, 1 },
{ DB_OPTIONS_PAR_ERROR, "PMRX db_options parity error", -1, 1 },
{ IESPI_PAR_ERROR, "PMRX iespi parity error", -1, 1 },
{ E_PCMD_PAR_ERROR, "PMRX e_pcmd parity error", -1, 1},
{ 0 }
};
if (t4_handle_intr_status(adapter, PM_RX_INT_CAUSE, pmrx_intr_info))
t4_fatal_err(adapter);
}
/*
* CPL switch interrupt handler.
*/
static void cplsw_intr_handler(struct adapter *adapter)
{
static const struct intr_info cplsw_intr_info[] = {
{ CIM_OP_MAP_PERR, "CPLSW CIM op_map parity error", -1, 1 },
{ CIM_OVFL_ERROR, "CPLSW CIM overflow", -1, 1 },
{ TP_FRAMING_ERROR, "CPLSW TP framing error", -1, 1 },
{ SGE_FRAMING_ERROR, "CPLSW SGE framing error", -1, 1 },
{ CIM_FRAMING_ERROR, "CPLSW CIM framing error", -1, 1 },
{ ZERO_SWITCH_ERROR, "CPLSW no-switch error", -1, 1 },
{ 0 }
};
if (t4_handle_intr_status(adapter, CPL_INTR_CAUSE, cplsw_intr_info))
t4_fatal_err(adapter);
}
/*
* LE interrupt handler.
*/
static void le_intr_handler(struct adapter *adap)
{
static const struct intr_info le_intr_info[] = {
{ LIPMISS, "LE LIP miss", -1, 0 },
{ LIP0, "LE 0 LIP error", -1, 0 },
{ PARITYERR, "LE parity error", -1, 1 },
{ UNKNOWNCMD, "LE unknown command", -1, 1 },
{ REQQPARERR, "LE request queue parity error", -1, 1 },
{ 0 }
};
if (t4_handle_intr_status(adap, LE_DB_INT_CAUSE, le_intr_info))
t4_fatal_err(adap);
}
/*
* MPS interrupt handler.
*/
static void mps_intr_handler(struct adapter *adapter)
{
static const struct intr_info mps_rx_intr_info[] = {
{ 0xffffff, "MPS Rx parity error", -1, 1 },
{ 0 }
};
static const struct intr_info mps_tx_intr_info[] = {
{ TPFIFO, "MPS Tx TP FIFO parity error", -1, 1 },
{ NCSIFIFO, "MPS Tx NC-SI FIFO parity error", -1, 1 },
{ TXDATAFIFO, "MPS Tx data FIFO parity error", -1, 1 },
{ TXDESCFIFO, "MPS Tx desc FIFO parity error", -1, 1 },
{ BUBBLE, "MPS Tx underflow", -1, 1 },
{ SECNTERR, "MPS Tx SOP/EOP error", -1, 1 },
{ FRMERR, "MPS Tx framing error", -1, 1 },
{ 0 }
};
static const struct intr_info mps_trc_intr_info[] = {
{ FILTMEM, "MPS TRC filter parity error", -1, 1 },
{ PKTFIFO, "MPS TRC packet FIFO parity error", -1, 1 },
{ MISCPERR, "MPS TRC misc parity error", -1, 1 },
{ 0 }
};
static const struct intr_info mps_stat_sram_intr_info[] = {
{ 0x1fffff, "MPS statistics SRAM parity error", -1, 1 },
{ 0 }
};
static const struct intr_info mps_stat_tx_intr_info[] = {
{ 0xfffff, "MPS statistics Tx FIFO parity error", -1, 1 },
{ 0 }
};
static const struct intr_info mps_stat_rx_intr_info[] = {
{ 0xffffff, "MPS statistics Rx FIFO parity error", -1, 1 },
{ 0 }
};
static const struct intr_info mps_cls_intr_info[] = {
{ MATCHSRAM, "MPS match SRAM parity error", -1, 1 },
{ MATCHTCAM, "MPS match TCAM parity error", -1, 1 },
{ HASHSRAM, "MPS hash SRAM parity error", -1, 1 },
{ 0 }
};
int fat;
fat = t4_handle_intr_status(adapter, MPS_RX_PERR_INT_CAUSE,
mps_rx_intr_info) +
t4_handle_intr_status(adapter, MPS_TX_INT_CAUSE,
mps_tx_intr_info) +
t4_handle_intr_status(adapter, MPS_TRC_INT_CAUSE,
mps_trc_intr_info) +
t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_SRAM,
mps_stat_sram_intr_info) +
t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_TX_FIFO,
mps_stat_tx_intr_info) +
t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_RX_FIFO,
mps_stat_rx_intr_info) +
t4_handle_intr_status(adapter, MPS_CLS_INT_CAUSE,
mps_cls_intr_info);
t4_write_reg(adapter, MPS_INT_CAUSE, CLSINT | TRCINT |
RXINT | TXINT | STATINT);
t4_read_reg(adapter, MPS_INT_CAUSE); /* flush */
if (fat)
t4_fatal_err(adapter);
}
#define MEM_INT_MASK (PERR_INT_CAUSE | ECC_CE_INT_CAUSE | ECC_UE_INT_CAUSE)
/*
* EDC/MC interrupt handler.
*/
static void mem_intr_handler(struct adapter *adapter, int idx)
{
static const char name[3][5] = { "EDC0", "EDC1", "MC" };
unsigned int addr, cnt_addr, v;
if (idx <= MEM_EDC1) {
addr = EDC_REG(EDC_INT_CAUSE, idx);
cnt_addr = EDC_REG(EDC_ECC_STATUS, idx);
} else {
addr = MC_INT_CAUSE;
cnt_addr = MC_ECC_STATUS;
}
v = t4_read_reg(adapter, addr) & MEM_INT_MASK;
if (v & PERR_INT_CAUSE)
dev_alert(adapter->pdev_dev, "%s FIFO parity error\n",
name[idx]);
if (v & ECC_CE_INT_CAUSE) {
u32 cnt = ECC_CECNT_GET(t4_read_reg(adapter, cnt_addr));
t4_write_reg(adapter, cnt_addr, ECC_CECNT_MASK);
if (printk_ratelimit())
dev_warn(adapter->pdev_dev,
"%u %s correctable ECC data error%s\n",
cnt, name[idx], cnt > 1 ? "s" : "");
}
if (v & ECC_UE_INT_CAUSE)
dev_alert(adapter->pdev_dev,
"%s uncorrectable ECC data error\n", name[idx]);
t4_write_reg(adapter, addr, v);
if (v & (PERR_INT_CAUSE | ECC_UE_INT_CAUSE))
t4_fatal_err(adapter);
}
/*
* MA interrupt handler.
*/
static void ma_intr_handler(struct adapter *adap)
{
u32 v, status = t4_read_reg(adap, MA_INT_CAUSE);
if (status & MEM_PERR_INT_CAUSE)
dev_alert(adap->pdev_dev,
"MA parity error, parity status %#x\n",
t4_read_reg(adap, MA_PARITY_ERROR_STATUS));
if (status & MEM_WRAP_INT_CAUSE) {
v = t4_read_reg(adap, MA_INT_WRAP_STATUS);
dev_alert(adap->pdev_dev, "MA address wrap-around error by "
"client %u to address %#x\n",
MEM_WRAP_CLIENT_NUM_GET(v),
MEM_WRAP_ADDRESS_GET(v) << 4);
}
t4_write_reg(adap, MA_INT_CAUSE, status);
t4_fatal_err(adap);
}
/*
* SMB interrupt handler.
*/
static void smb_intr_handler(struct adapter *adap)
{
static const struct intr_info smb_intr_info[] = {
{ MSTTXFIFOPARINT, "SMB master Tx FIFO parity error", -1, 1 },
{ MSTRXFIFOPARINT, "SMB master Rx FIFO parity error", -1, 1 },
{ SLVFIFOPARINT, "SMB slave FIFO parity error", -1, 1 },
{ 0 }
};
if (t4_handle_intr_status(adap, SMB_INT_CAUSE, smb_intr_info))
t4_fatal_err(adap);
}
/*
* NC-SI interrupt handler.
*/
static void ncsi_intr_handler(struct adapter *adap)
{
static const struct intr_info ncsi_intr_info[] = {
{ CIM_DM_PRTY_ERR, "NC-SI CIM parity error", -1, 1 },
{ MPS_DM_PRTY_ERR, "NC-SI MPS parity error", -1, 1 },
{ TXFIFO_PRTY_ERR, "NC-SI Tx FIFO parity error", -1, 1 },
{ RXFIFO_PRTY_ERR, "NC-SI Rx FIFO parity error", -1, 1 },
{ 0 }
};
if (t4_handle_intr_status(adap, NCSI_INT_CAUSE, ncsi_intr_info))
t4_fatal_err(adap);
}
/*
* XGMAC interrupt handler.
*/
static void xgmac_intr_handler(struct adapter *adap, int port)
{
u32 v = t4_read_reg(adap, PORT_REG(port, XGMAC_PORT_INT_CAUSE));
v &= TXFIFO_PRTY_ERR | RXFIFO_PRTY_ERR;
if (!v)
return;
if (v & TXFIFO_PRTY_ERR)
dev_alert(adap->pdev_dev, "XGMAC %d Tx FIFO parity error\n",
port);
if (v & RXFIFO_PRTY_ERR)
dev_alert(adap->pdev_dev, "XGMAC %d Rx FIFO parity error\n",
port);
t4_write_reg(adap, PORT_REG(port, XGMAC_PORT_INT_CAUSE), v);
t4_fatal_err(adap);
}
/*
* PL interrupt handler.
*/
static void pl_intr_handler(struct adapter *adap)
{
static const struct intr_info pl_intr_info[] = {
{ FATALPERR, "T4 fatal parity error", -1, 1 },
{ PERRVFID, "PL VFID_MAP parity error", -1, 1 },
{ 0 }
};
if (t4_handle_intr_status(adap, PL_PL_INT_CAUSE, pl_intr_info))
t4_fatal_err(adap);
}
#define PF_INTR_MASK (PFSW)
#define GLBL_INTR_MASK (CIM | MPS | PL | PCIE | MC | EDC0 | \
EDC1 | LE | TP | MA | PM_TX | PM_RX | ULP_RX | \
CPL_SWITCH | SGE | ULP_TX)
/**
* t4_slow_intr_handler - control path interrupt handler
* @adapter: the adapter
*
* T4 interrupt handler for non-data global interrupt events, e.g., errors.
* The designation 'slow' is because it involves register reads, while
* data interrupts typically don't involve any MMIOs.
*/
int t4_slow_intr_handler(struct adapter *adapter)
{
u32 cause = t4_read_reg(adapter, PL_INT_CAUSE);
if (!(cause & GLBL_INTR_MASK))
return 0;
if (cause & CIM)
cim_intr_handler(adapter);
if (cause & MPS)
mps_intr_handler(adapter);
if (cause & NCSI)
ncsi_intr_handler(adapter);
if (cause & PL)
pl_intr_handler(adapter);
if (cause & SMB)
smb_intr_handler(adapter);
if (cause & XGMAC0)
xgmac_intr_handler(adapter, 0);
if (cause & XGMAC1)
xgmac_intr_handler(adapter, 1);
if (cause & XGMAC_KR0)
xgmac_intr_handler(adapter, 2);
if (cause & XGMAC_KR1)
xgmac_intr_handler(adapter, 3);
if (cause & PCIE)
pcie_intr_handler(adapter);
if (cause & MC)
mem_intr_handler(adapter, MEM_MC);
if (cause & EDC0)
mem_intr_handler(adapter, MEM_EDC0);
if (cause & EDC1)
mem_intr_handler(adapter, MEM_EDC1);
if (cause & LE)
le_intr_handler(adapter);
if (cause & TP)
tp_intr_handler(adapter);
if (cause & MA)
ma_intr_handler(adapter);
if (cause & PM_TX)
pmtx_intr_handler(adapter);
if (cause & PM_RX)
pmrx_intr_handler(adapter);
if (cause & ULP_RX)
ulprx_intr_handler(adapter);
if (cause & CPL_SWITCH)
cplsw_intr_handler(adapter);
if (cause & SGE)
sge_intr_handler(adapter);
if (cause & ULP_TX)
ulptx_intr_handler(adapter);
/* Clear the interrupts just processed for which we are the master. */
t4_write_reg(adapter, PL_INT_CAUSE, cause & GLBL_INTR_MASK);
(void) t4_read_reg(adapter, PL_INT_CAUSE); /* flush */
return 1;
}
/**
* t4_intr_enable - enable interrupts
* @adapter: the adapter whose interrupts should be enabled
*
* Enable PF-specific interrupts for the calling function and the top-level
* interrupt concentrator for global interrupts. Interrupts are already
* enabled at each module, here we just enable the roots of the interrupt
* hierarchies.
*
* Note: this function should be called only when the driver manages
* non PF-specific interrupts from the various HW modules. Only one PCI
* function at a time should be doing this.
*/
void t4_intr_enable(struct adapter *adapter)
{
u32 pf = SOURCEPF_GET(t4_read_reg(adapter, PL_WHOAMI));
t4_write_reg(adapter, SGE_INT_ENABLE3, ERR_CPL_EXCEED_IQE_SIZE |
ERR_INVALID_CIDX_INC | ERR_CPL_OPCODE_0 |
ERR_DROPPED_DB | ERR_DATA_CPL_ON_HIGH_QID1 |
ERR_DATA_CPL_ON_HIGH_QID0 | ERR_BAD_DB_PIDX3 |
ERR_BAD_DB_PIDX2 | ERR_BAD_DB_PIDX1 |
ERR_BAD_DB_PIDX0 | ERR_ING_CTXT_PRIO |
ERR_EGR_CTXT_PRIO | INGRESS_SIZE_ERR |
EGRESS_SIZE_ERR);
t4_write_reg(adapter, MYPF_REG(PL_PF_INT_ENABLE), PF_INTR_MASK);
t4_set_reg_field(adapter, PL_INT_MAP0, 0, 1 << pf);
}
/**
* t4_intr_disable - disable interrupts
* @adapter: the adapter whose interrupts should be disabled
*
* Disable interrupts. We only disable the top-level interrupt
* concentrators. The caller must be a PCI function managing global
* interrupts.
*/
void t4_intr_disable(struct adapter *adapter)
{
u32 pf = SOURCEPF_GET(t4_read_reg(adapter, PL_WHOAMI));
t4_write_reg(adapter, MYPF_REG(PL_PF_INT_ENABLE), 0);
t4_set_reg_field(adapter, PL_INT_MAP0, 1 << pf, 0);
}
/**
* 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 HW 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;
}
/**
* t4_config_rss_range - configure a portion of the RSS mapping table
* @adapter: the adapter
* @mbox: mbox to use for the FW command
* @viid: virtual interface whose RSS subtable is to be written
* @start: start entry in the table to write
* @n: how many table entries to write
* @rspq: values for the response 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 allowed for
* @viid.
*/
int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
int start, int n, const u16 *rspq, unsigned int nrspq)
{
int ret;
const u16 *rsp = rspq;
const u16 *rsp_end = rspq + nrspq;
struct fw_rss_ind_tbl_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.op_to_viid = htonl(FW_CMD_OP(FW_RSS_IND_TBL_CMD) |
FW_CMD_REQUEST | FW_CMD_WRITE |
FW_RSS_IND_TBL_CMD_VIID(viid));
cmd.retval_len16 = htonl(FW_LEN16(cmd));
/* each fw_rss_ind_tbl_cmd takes up to 32 entries */
while (n > 0) {
int nq = min(n, 32);
__be32 *qp = &cmd.iq0_to_iq2;
cmd.niqid = htons(nq);
cmd.startidx = htons(start);
start += nq;
n -= nq;
while (nq > 0) {
unsigned int v;
v = FW_RSS_IND_TBL_CMD_IQ0(*rsp);
if (++rsp >= rsp_end)
rsp = rspq;
v |= FW_RSS_IND_TBL_CMD_IQ1(*rsp);
if (++rsp >= rsp_end)
rsp = rspq;
v |= FW_RSS_IND_TBL_CMD_IQ2(*rsp);
if (++rsp >= rsp_end)
rsp = rspq;
*qp++ = htonl(v);
nq -= 3;
}
ret = t4_wr_mbox(adapter, mbox, &cmd, sizeof(cmd), NULL);
if (ret)
return ret;
}
return 0;
}
/**
* t4_config_glbl_rss - configure the global RSS mode
* @adapter: the adapter
* @mbox: mbox to use for the FW command
* @mode: global RSS mode
* @flags: mode-specific flags
*
* Sets the global RSS mode.
*/
int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
unsigned int flags)
{
struct fw_rss_glb_config_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_write = htonl(FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) |
FW_CMD_REQUEST | FW_CMD_WRITE);
c.retval_len16 = htonl(FW_LEN16(c));
if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_MANUAL) {
c.u.manual.mode_pkd = htonl(FW_RSS_GLB_CONFIG_CMD_MODE(mode));
} else if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL) {
c.u.basicvirtual.mode_pkd =
htonl(FW_RSS_GLB_CONFIG_CMD_MODE(mode));
c.u.basicvirtual.synmapen_to_hashtoeplitz = htonl(flags);
} else
return -EINVAL;
return t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL);
}
/**
* t4_tp_get_tcp_stats - read TP's TCP MIB counters
* @adap: the adapter
* @v4: holds the TCP/IP counter values
* @v6: holds the TCP/IPv6 counter values
*
* Returns the values of TP's TCP/IP and TCP/IPv6 MIB counters.
* Either @v4 or @v6 may be %NULL to skip the corresponding stats.
*/
void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
struct tp_tcp_stats *v6)
{
u32 val[TP_MIB_TCP_RXT_SEG_LO - TP_MIB_TCP_OUT_RST + 1];
#define STAT_IDX(x) ((TP_MIB_TCP_##x) - TP_MIB_TCP_OUT_RST)
#define STAT(x) val[STAT_IDX(x)]
#define STAT64(x) (((u64)STAT(x##_HI) << 32) | STAT(x##_LO))
if (v4) {
t4_read_indirect(adap, TP_MIB_INDEX, TP_MIB_DATA, val,
ARRAY_SIZE(val), TP_MIB_TCP_OUT_RST);
v4->tcpOutRsts = STAT(OUT_RST);
v4->tcpInSegs = STAT64(IN_SEG);
v4->tcpOutSegs = STAT64(OUT_SEG);
v4->tcpRetransSegs = STAT64(RXT_SEG);
}
if (v6) {
t4_read_indirect(adap, TP_MIB_INDEX, TP_MIB_DATA, val,
ARRAY_SIZE(val), TP_MIB_TCP_V6OUT_RST);
v6->tcpOutRsts = STAT(OUT_RST);
v6->tcpInSegs = STAT64(IN_SEG);
v6->tcpOutSegs = STAT64(OUT_SEG);
v6->tcpRetransSegs = STAT64(RXT_SEG);
}
#undef STAT64
#undef STAT
#undef STAT_IDX
}
/**
* t4_read_mtu_tbl - returns the values in the HW path MTU table
* @adap: the adapter
* @mtus: where to store the MTU values
* @mtu_log: where to store the MTU base-2 log (may be %NULL)
*
* Reads the HW path MTU table.
*/
void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log)
{
u32 v;
int i;
for (i = 0; i < NMTUS; ++i) {
t4_write_reg(adap, TP_MTU_TABLE,
MTUINDEX(0xff) | MTUVALUE(i));
v = t4_read_reg(adap, TP_MTU_TABLE);
mtus[i] = MTUVALUE_GET(v);
if (mtu_log)
mtu_log[i] = MTUWIDTH_GET(v);
}
}
/**
* init_cong_ctrl - initialize congestion control parameters
* @a: the alpha values for congestion control
* @b: the beta values for congestion control
*
* Initialize the congestion control parameters.
*/
static void __devinit init_cong_ctrl(unsigned short *a, unsigned short *b)
{
a[0] = a[1] = a[2] = a[3] = a[4] = a[5] = a[6] = a[7] = a[8] = 1;
a[9] = 2;
a[10] = 3;
a[11] = 4;
a[12] = 5;
a[13] = 6;
a[14] = 7;
a[15] = 8;
a[16] = 9;
a[17] = 10;
a[18] = 14;
a[19] = 17;
a[20] = 21;
a[21] = 25;
a[22] = 30;
a[23] = 35;
a[24] = 45;
a[25] = 60;
a[26] = 80;
a[27] = 100;
a[28] = 200;
a[29] = 300;
a[30] = 400;
a[31] = 500;
b[0] = b[1] = b[2] = b[3] = b[4] = b[5] = b[6] = b[7] = b[8] = 0;
b[9] = b[10] = 1;
b[11] = b[12] = 2;
b[13] = b[14] = b[15] = b[16] = 3;
b[17] = b[18] = b[19] = b[20] = b[21] = 4;
b[22] = b[23] = b[24] = b[25] = b[26] = b[27] = 5;
b[28] = b[29] = 6;
b[30] = b[31] = 7;
}
/* The minimum additive increment value for the congestion control table */
#define CC_MIN_INCR 2U
/**
* t4_load_mtus - write the MTU and congestion control HW tables
* @adap: the adapter
* @mtus: the values for the MTU table
* @alpha: the values for the congestion control alpha parameter
* @beta: the values for the congestion control beta parameter
*
* Write the HW MTU table with the supplied MTUs and the high-speed
* congestion control table with the supplied alpha, beta, and MTUs.
* We write the two tables together because the additive increments
* depend on the MTUs.
*/
void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
const unsigned short *alpha, const unsigned short *beta)
{
static const unsigned int avg_pkts[NCCTRL_WIN] = {
2, 6, 10, 14, 20, 28, 40, 56, 80, 112, 160, 224, 320, 448, 640,
896, 1281, 1792, 2560, 3584, 5120, 7168, 10240, 14336, 20480,
28672, 40960, 57344, 81920, 114688, 163840, 229376
};
unsigned int i, w;
for (i = 0; i < NMTUS; ++i) {
unsigned int mtu = mtus[i];
unsigned int log2 = fls(mtu);
if (!(mtu & ((1 << log2) >> 2))) /* round */
log2--;
t4_write_reg(adap, TP_MTU_TABLE, MTUINDEX(i) |
MTUWIDTH(log2) | MTUVALUE(mtu));
for (w = 0; w < NCCTRL_WIN; ++w) {
unsigned int inc;
inc = max(((mtu - 40) * alpha[w]) / avg_pkts[w],
CC_MIN_INCR);
t4_write_reg(adap, TP_CCTRL_TABLE, (i << 21) |
(w << 16) | (beta[w] << 13) | inc);
}
}
}
/**
* get_mps_bg_map - return the buffer groups associated with a port
* @adap: the adapter
* @idx: the port index
*
* Returns a bitmap indicating which MPS buffer groups are associated
* with the given port. Bit i is set if buffer group i is used by the
* port.
*/
static unsigned int get_mps_bg_map(struct adapter *adap, int idx)
{
u32 n = NUMPORTS_GET(t4_read_reg(adap, MPS_CMN_CTL));
if (n == 0)
return idx == 0 ? 0xf : 0;
if (n == 1)
return idx < 2 ? (3 << (2 * idx)) : 0;
return 1 << idx;
}
/**
* t4_get_port_stats - collect port statistics
* @adap: the adapter
* @idx: the port index
* @p: the stats structure to fill
*
* Collect statistics related to the given port from HW.
*/
void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p)
{
u32 bgmap = get_mps_bg_map(adap, idx);
#define GET_STAT(name) \
t4_read_reg64(adap, PORT_REG(idx, MPS_PORT_STAT_##name##_L))
#define GET_STAT_COM(name) t4_read_reg64(adap, MPS_STAT_##name##_L)
p->tx_octets = GET_STAT(TX_PORT_BYTES);
p->tx_frames = GET_STAT(TX_PORT_FRAMES);
p->tx_bcast_frames = GET_STAT(TX_PORT_BCAST);
p->tx_mcast_frames = GET_STAT(TX_PORT_MCAST);
p->tx_ucast_frames = GET_STAT(TX_PORT_UCAST);
p->tx_error_frames = GET_STAT(TX_PORT_ERROR);
p->tx_frames_64 = GET_STAT(TX_PORT_64B);
p->tx_frames_65_127 = GET_STAT(TX_PORT_65B_127B);
p->tx_frames_128_255 = GET_STAT(TX_PORT_128B_255B);
p->tx_frames_256_511 = GET_STAT(TX_PORT_256B_511B);
p->tx_frames_512_1023 = GET_STAT(TX_PORT_512B_1023B);
p->tx_frames_1024_1518 = GET_STAT(TX_PORT_1024B_1518B);
p->tx_frames_1519_max = GET_STAT(TX_PORT_1519B_MAX);
p->tx_drop = GET_STAT(TX_PORT_DROP);
p->tx_pause = GET_STAT(TX_PORT_PAUSE);
p->tx_ppp0 = GET_STAT(TX_PORT_PPP0);
p->tx_ppp1 = GET_STAT(TX_PORT_PPP1);
p->tx_ppp2 = GET_STAT(TX_PORT_PPP2);
p->tx_ppp3 = GET_STAT(TX_PORT_PPP3);
p->tx_ppp4 = GET_STAT(TX_PORT_PPP4);
p->tx_ppp5 = GET_STAT(TX_PORT_PPP5);
p->tx_ppp6 = GET_STAT(TX_PORT_PPP6);
p->tx_ppp7 = GET_STAT(TX_PORT_PPP7);
p->rx_octets = GET_STAT(RX_PORT_BYTES);
p->rx_frames = GET_STAT(RX_PORT_FRAMES);
p->rx_bcast_frames = GET_STAT(RX_PORT_BCAST);
p->rx_mcast_frames = GET_STAT(RX_PORT_MCAST);
p->rx_ucast_frames = GET_STAT(RX_PORT_UCAST);
p->rx_too_long = GET_STAT(RX_PORT_MTU_ERROR);
p->rx_jabber = GET_STAT(RX_PORT_MTU_CRC_ERROR);
p->rx_fcs_err = GET_STAT(RX_PORT_CRC_ERROR);
p->rx_len_err = GET_STAT(RX_PORT_LEN_ERROR);
p->rx_symbol_err = GET_STAT(RX_PORT_SYM_ERROR);
p->rx_runt = GET_STAT(RX_PORT_LESS_64B);
p->rx_frames_64 = GET_STAT(RX_PORT_64B);
p->rx_frames_65_127 = GET_STAT(RX_PORT_65B_127B);
p->rx_frames_128_255 = GET_STAT(RX_PORT_128B_255B);
p->rx_frames_256_511 = GET_STAT(RX_PORT_256B_511B);
p->rx_frames_512_1023 = GET_STAT(RX_PORT_512B_1023B);
p->rx_frames_1024_1518 = GET_STAT(RX_PORT_1024B_1518B);
p->rx_frames_1519_max = GET_STAT(RX_PORT_1519B_MAX);
p->rx_pause = GET_STAT(RX_PORT_PAUSE);
p->rx_ppp0 = GET_STAT(RX_PORT_PPP0);
p->rx_ppp1 = GET_STAT(RX_PORT_PPP1);
p->rx_ppp2 = GET_STAT(RX_PORT_PPP2);
p->rx_ppp3 = GET_STAT(RX_PORT_PPP3);
p->rx_ppp4 = GET_STAT(RX_PORT_PPP4);
p->rx_ppp5 = GET_STAT(RX_PORT_PPP5);
p->rx_ppp6 = GET_STAT(RX_PORT_PPP6);
p->rx_ppp7 = GET_STAT(RX_PORT_PPP7);
p->rx_ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_DROP_FRAME) : 0;
p->rx_ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_DROP_FRAME) : 0;
p->rx_ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_DROP_FRAME) : 0;
p->rx_ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_DROP_FRAME) : 0;
p->rx_trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_TRUNC_FRAME) : 0;
p->rx_trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_TRUNC_FRAME) : 0;
p->rx_trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_TRUNC_FRAME) : 0;
p->rx_trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_TRUNC_FRAME) : 0;
#undef GET_STAT
#undef GET_STAT_COM
}
/**
* t4_wol_magic_enable - enable/disable magic packet WoL
* @adap: the adapter
* @port: the physical port index
* @addr: MAC address expected in magic packets, %NULL to disable
*
* Enables/disables magic packet wake-on-LAN for the selected port.
*/
void t4_wol_magic_enable(struct adapter *adap, unsigned int port,
const u8 *addr)
{
if (addr) {
t4_write_reg(adap, PORT_REG(port, XGMAC_PORT_MAGIC_MACID_LO),
(addr[2] << 24) | (addr[3] << 16) |
(addr[4] << 8) | addr[5]);
t4_write_reg(adap, PORT_REG(port, XGMAC_PORT_MAGIC_MACID_HI),
(addr[0] << 8) | addr[1]);
}
t4_set_reg_field(adap, PORT_REG(port, XGMAC_PORT_CFG2), MAGICEN,
addr ? MAGICEN : 0);
}
/**
* t4_wol_pat_enable - enable/disable pattern-based WoL
* @adap: the adapter
* @port: the physical port index
* @map: bitmap of which HW pattern filters to set
* @mask0: byte mask for bytes 0-63 of a packet
* @mask1: byte mask for bytes 64-127 of a packet
* @crc: Ethernet CRC for selected bytes
* @enable: enable/disable switch
*
* Sets the pattern filters indicated in @map to mask out the bytes
* specified in @mask0/@mask1 in received packets and compare the CRC of
* the resulting packet against @crc. If @enable is %true pattern-based
* WoL is enabled, otherwise disabled.
*/
int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map,
u64 mask0, u64 mask1, unsigned int crc, bool enable)
{
int i;
if (!enable) {
t4_set_reg_field(adap, PORT_REG(port, XGMAC_PORT_CFG2),
PATEN, 0);
return 0;
}
if (map > 0xff)
return -EINVAL;
#define EPIO_REG(name) PORT_REG(port, XGMAC_PORT_EPIO_##name)
t4_write_reg(adap, EPIO_REG(DATA1), mask0 >> 32);
t4_write_reg(adap, EPIO_REG(DATA2), mask1);
t4_write_reg(adap, EPIO_REG(DATA3), mask1 >> 32);
for (i = 0; i < NWOL_PAT; i++, map >>= 1) {
if (!(map & 1))
continue;
/* write byte masks */
t4_write_reg(adap, EPIO_REG(DATA0), mask0);
t4_write_reg(adap, EPIO_REG(OP), ADDRESS(i) | EPIOWR);
t4_read_reg(adap, EPIO_REG(OP)); /* flush */
if (t4_read_reg(adap, EPIO_REG(OP)) & BUSY)
return -ETIMEDOUT;
/* write CRC */
t4_write_reg(adap, EPIO_REG(DATA0), crc);
t4_write_reg(adap, EPIO_REG(OP), ADDRESS(i + 32) | EPIOWR);
t4_read_reg(adap, EPIO_REG(OP)); /* flush */
if (t4_read_reg(adap, EPIO_REG(OP)) & BUSY)
return -ETIMEDOUT;
}
#undef EPIO_REG
t4_set_reg_field(adap, PORT_REG(port, XGMAC_PORT_CFG2), 0, PATEN);
return 0;
}
#define INIT_CMD(var, cmd, rd_wr) do { \
(var).op_to_write = htonl(FW_CMD_OP(FW_##cmd##_CMD) | \
FW_CMD_REQUEST | FW_CMD_##rd_wr); \
(var).retval_len16 = htonl(FW_LEN16(var)); \
} while (0)
/**
* t4_mdio_rd - read a PHY register through MDIO
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @phy_addr: the PHY address
* @mmd: the PHY MMD to access (0 for clause 22 PHYs)
* @reg: the register to read
* @valp: where to store the value
*
* Issues a FW command through the given mailbox to read a PHY register.
*/
int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
unsigned int mmd, unsigned int reg, u16 *valp)
{
int ret;
struct fw_ldst_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_addrspace = htonl(FW_CMD_OP(FW_LDST_CMD) | FW_CMD_REQUEST |
FW_CMD_READ | FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO));
c.cycles_to_len16 = htonl(FW_LEN16(c));
c.u.mdio.paddr_mmd = htons(FW_LDST_CMD_PADDR(phy_addr) |
FW_LDST_CMD_MMD(mmd));
c.u.mdio.raddr = htons(reg);
ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
if (ret == 0)
*valp = ntohs(c.u.mdio.rval);
return ret;
}
/**
* t4_mdio_wr - write a PHY register through MDIO
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @phy_addr: the PHY address
* @mmd: the PHY MMD to access (0 for clause 22 PHYs)
* @reg: the register to write
* @valp: value to write
*
* Issues a FW command through the given mailbox to write a PHY register.
*/
int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
unsigned int mmd, unsigned int reg, u16 val)
{
struct fw_ldst_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_addrspace = htonl(FW_CMD_OP(FW_LDST_CMD) | FW_CMD_REQUEST |
FW_CMD_WRITE | FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO));
c.cycles_to_len16 = htonl(FW_LEN16(c));
c.u.mdio.paddr_mmd = htons(FW_LDST_CMD_PADDR(phy_addr) |
FW_LDST_CMD_MMD(mmd));
c.u.mdio.raddr = htons(reg);
c.u.mdio.rval = htons(val);
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_fw_hello - establish communication with FW
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @evt_mbox: mailbox to receive async FW events
* @master: specifies the caller's willingness to be the device master
* @state: returns the current device state
*
* Issues a command to establish communication with FW.
*/
int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
enum dev_master master, enum dev_state *state)
{
int ret;
struct fw_hello_cmd c;
INIT_CMD(c, HELLO, WRITE);
c.err_to_mbasyncnot = htonl(
FW_HELLO_CMD_MASTERDIS(master == MASTER_CANT) |
FW_HELLO_CMD_MASTERFORCE(master == MASTER_MUST) |
FW_HELLO_CMD_MBMASTER(master == MASTER_MUST ? mbox : 0xff) |
FW_HELLO_CMD_MBASYNCNOT(evt_mbox));
ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
if (ret == 0 && state) {
u32 v = ntohl(c.err_to_mbasyncnot);
if (v & FW_HELLO_CMD_INIT)
*state = DEV_STATE_INIT;
else if (v & FW_HELLO_CMD_ERR)
*state = DEV_STATE_ERR;
else
*state = DEV_STATE_UNINIT;
}
return ret;
}
/**
* t4_fw_bye - end communication with FW
* @adap: the adapter
* @mbox: mailbox to use for the FW command
*
* Issues a command to terminate communication with FW.
*/
int t4_fw_bye(struct adapter *adap, unsigned int mbox)
{
struct fw_bye_cmd c;
INIT_CMD(c, BYE, WRITE);
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_init_cmd - ask FW to initialize the device
* @adap: the adapter
* @mbox: mailbox to use for the FW command
*
* Issues a command to FW to partially initialize the device. This
* performs initialization that generally doesn't depend on user input.
*/
int t4_early_init(struct adapter *adap, unsigned int mbox)
{
struct fw_initialize_cmd c;
INIT_CMD(c, INITIALIZE, WRITE);
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_fw_reset - issue a reset to FW
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @reset: specifies the type of reset to perform
*
* Issues a reset command of the specified type to FW.
*/
int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset)
{
struct fw_reset_cmd c;
INIT_CMD(c, RESET, WRITE);
c.val = htonl(reset);
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_query_params - query FW or device parameters
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @pf: the PF
* @vf: the VF
* @nparams: the number of parameters
* @params: the parameter names
* @val: the parameter values
*
* Reads the value of FW or device parameters. Up to 7 parameters can be
* queried at once.
*/
int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int nparams, const u32 *params,
u32 *val)
{
int i, ret;
struct fw_params_cmd c;
__be32 *p = &c.param[0].mnem;
if (nparams > 7)
return -EINVAL;
memset(&c, 0, sizeof(c));
c.op_to_vfn = htonl(FW_CMD_OP(FW_PARAMS_CMD) | FW_CMD_REQUEST |
FW_CMD_READ | FW_PARAMS_CMD_PFN(pf) |
FW_PARAMS_CMD_VFN(vf));
c.retval_len16 = htonl(FW_LEN16(c));
for (i = 0; i < nparams; i++, p += 2)
*p = htonl(*params++);
ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
if (ret == 0)
for (i = 0, p = &c.param[0].val; i < nparams; i++, p += 2)
*val++ = ntohl(*p);
return ret;
}
/**
* t4_set_params - sets FW or device parameters
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @pf: the PF
* @vf: the VF
* @nparams: the number of parameters
* @params: the parameter names
* @val: the parameter values
*
* Sets the value of FW or device parameters. Up to 7 parameters can be
* specified at once.
*/
int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int nparams, const u32 *params,
const u32 *val)
{
struct fw_params_cmd c;
__be32 *p = &c.param[0].mnem;
if (nparams > 7)
return -EINVAL;
memset(&c, 0, sizeof(c));
c.op_to_vfn = htonl(FW_CMD_OP(FW_PARAMS_CMD) | FW_CMD_REQUEST |
FW_CMD_WRITE | FW_PARAMS_CMD_PFN(pf) |
FW_PARAMS_CMD_VFN(vf));
c.retval_len16 = htonl(FW_LEN16(c));
while (nparams--) {
*p++ = htonl(*params++);
*p++ = htonl(*val++);
}
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_cfg_pfvf - configure PF/VF resource limits
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @pf: the PF being configured
* @vf: the VF being configured
* @txq: the max number of egress queues
* @txq_eth_ctrl: the max number of egress Ethernet or control queues
* @rxqi: the max number of interrupt-capable ingress queues
* @rxq: the max number of interruptless ingress queues
* @tc: the PCI traffic class
* @vi: the max number of virtual interfaces
* @cmask: the channel access rights mask for the PF/VF
* @pmask: the port access rights mask for the PF/VF
* @nexact: the maximum number of exact MPS filters
* @rcaps: read capabilities
* @wxcaps: write/execute capabilities
*
* Configures resource limits and capabilities for a physical or virtual
* function.
*/
int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl,
unsigned int rxqi, unsigned int rxq, unsigned int tc,
unsigned int vi, unsigned int cmask, unsigned int pmask,
unsigned int nexact, unsigned int rcaps, unsigned int wxcaps)
{
struct fw_pfvf_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_vfn = htonl(FW_CMD_OP(FW_PFVF_CMD) | FW_CMD_REQUEST |
FW_CMD_WRITE | FW_PFVF_CMD_PFN(pf) |
FW_PFVF_CMD_VFN(vf));
c.retval_len16 = htonl(FW_LEN16(c));
c.niqflint_niq = htonl(FW_PFVF_CMD_NIQFLINT(rxqi) |
FW_PFVF_CMD_NIQ(rxq));
c.type_to_neq = htonl(FW_PFVF_CMD_CMASK(cmask) |
FW_PFVF_CMD_PMASK(pmask) |
FW_PFVF_CMD_NEQ(txq));
c.tc_to_nexactf = htonl(FW_PFVF_CMD_TC(tc) | FW_PFVF_CMD_NVI(vi) |
FW_PFVF_CMD_NEXACTF(nexact));
c.r_caps_to_nethctrl = htonl(FW_PFVF_CMD_R_CAPS(rcaps) |
FW_PFVF_CMD_WX_CAPS(wxcaps) |
FW_PFVF_CMD_NETHCTRL(txq_eth_ctrl));
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_alloc_vi - allocate a virtual interface
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @port: physical port associated with the VI
* @pf: the PF owning the VI
* @vf: the VF owning the VI
* @nmac: number of MAC addresses needed (1 to 5)
* @mac: the MAC addresses of the VI
* @rss_size: size of RSS table slice associated with this VI
*
* Allocates a virtual interface for the given physical port. If @mac is
* not %NULL it contains the MAC addresses of the VI as assigned by FW.
* @mac should be large enough to hold @nmac Ethernet addresses, they are
* stored consecutively so the space needed is @nmac * 6 bytes.
* Returns a negative error number or the non-negative VI id.
*/
int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac,
unsigned int *rss_size)
{
int ret;
struct fw_vi_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_vfn = htonl(FW_CMD_OP(FW_VI_CMD) | FW_CMD_REQUEST |
FW_CMD_WRITE | FW_CMD_EXEC |
FW_VI_CMD_PFN(pf) | FW_VI_CMD_VFN(vf));
c.alloc_to_len16 = htonl(FW_VI_CMD_ALLOC | FW_LEN16(c));
c.portid_pkd = FW_VI_CMD_PORTID(port);
c.nmac = nmac - 1;
ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
if (ret)
return ret;
if (mac) {
memcpy(mac, c.mac, sizeof(c.mac));
switch (nmac) {
case 5:
memcpy(mac + 24, c.nmac3, sizeof(c.nmac3));
case 4:
memcpy(mac + 18, c.nmac2, sizeof(c.nmac2));
case 3:
memcpy(mac + 12, c.nmac1, sizeof(c.nmac1));
case 2:
memcpy(mac + 6, c.nmac0, sizeof(c.nmac0));
}
}
if (rss_size)
*rss_size = FW_VI_CMD_RSSSIZE_GET(ntohs(c.rsssize_pkd));
return FW_VI_CMD_VIID_GET(ntohs(c.type_viid));
}
/**
* t4_set_rxmode - set Rx properties of a virtual interface
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @viid: the VI id
* @mtu: the new MTU or -1
* @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 HW VLAN extraction, 0 to disable it, -1 no change
* @sleep_ok: if true we may sleep while awaiting command completion
*
* Sets Rx properties of a virtual interface.
*/
int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
int mtu, int promisc, int all_multi, int bcast, int vlanex,
bool sleep_ok)
{
struct fw_vi_rxmode_cmd c;
/* convert to FW values */
if (mtu < 0)
mtu = FW_RXMODE_MTU_NO_CHG;
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(&c, 0, sizeof(c));
c.op_to_viid = htonl(FW_CMD_OP(FW_VI_RXMODE_CMD) | FW_CMD_REQUEST |
FW_CMD_WRITE | FW_VI_RXMODE_CMD_VIID(viid));
c.retval_len16 = htonl(FW_LEN16(c));
c.mtu_to_vlanexen = htonl(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 t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
}
/**
* t4_alloc_mac_filt - allocates exact-match filters for MAC addresses
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @viid: the VI id
* @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 t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox,
unsigned int viid, bool free, unsigned int naddr,
const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok)
{
int i, ret;
struct fw_vi_mac_cmd c;
struct fw_vi_mac_exact *p;
if (naddr > 7)
return -EINVAL;
memset(&c, 0, sizeof(c));
c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST |
FW_CMD_WRITE | (free ? FW_CMD_EXEC : 0) |
FW_VI_MAC_CMD_VIID(viid));
c.freemacs_to_len16 = htonl(FW_VI_MAC_CMD_FREEMACS(free) |
FW_CMD_LEN16((naddr + 2) / 2));
for (i = 0, p = c.u.exact; i < naddr; i++, p++) {
p->valid_to_idx = htons(FW_VI_MAC_CMD_VALID |
FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
memcpy(p->macaddr, addr[i], sizeof(p->macaddr));
}
ret = t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), &c, sleep_ok);
if (ret)
return ret;
for (i = 0, p = c.u.exact; i < naddr; i++, p++) {
u16 index = FW_VI_MAC_CMD_IDX_GET(ntohs(p->valid_to_idx));
if (idx)
idx[i] = index >= NEXACT_MAC ? 0xffff : index;
if (index < NEXACT_MAC)
ret++;
else if (hash)
*hash |= (1ULL << hash_mac_addr(addr[i]));
}
return ret;
}
/**
* t4_change_mac - modifies the exact-match filter for a MAC address
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @viid: the VI id
* @idx: index of existing filter for old value of MAC address, or -1
* @addr: the new MAC address value
* @persist: whether a new MAC allocation should be persistent
* @add_smt: if true also add the address to the HW SMT
*
* 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 t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
int idx, const u8 *addr, bool persist, bool add_smt)
{
int ret, mode;
struct fw_vi_mac_cmd c;
struct fw_vi_mac_exact *p = c.u.exact;
if (idx < 0) /* new allocation */
idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
mode = add_smt ? FW_VI_MAC_SMT_AND_MPSTCAM : FW_VI_MAC_MPS_TCAM_ENTRY;
memset(&c, 0, sizeof(c));
c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST |
FW_CMD_WRITE | FW_VI_MAC_CMD_VIID(viid));
c.freemacs_to_len16 = htonl(FW_CMD_LEN16(1));
p->valid_to_idx = htons(FW_VI_MAC_CMD_VALID |
FW_VI_MAC_CMD_SMAC_RESULT(mode) |
FW_VI_MAC_CMD_IDX(idx));
memcpy(p->macaddr, addr, sizeof(p->macaddr));
ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
if (ret == 0) {
ret = FW_VI_MAC_CMD_IDX_GET(ntohs(p->valid_to_idx));
if (ret >= NEXACT_MAC)
ret = -ENOMEM;
}
return ret;
}
/**
* t4_set_addr_hash - program the MAC inexact-match hash filter
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @viid: the VI id
* @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 t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid,
bool ucast, u64 vec, bool sleep_ok)
{
struct fw_vi_mac_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST |
FW_CMD_WRITE | FW_VI_ENABLE_CMD_VIID(viid));
c.freemacs_to_len16 = htonl(FW_VI_MAC_CMD_HASHVECEN |
FW_VI_MAC_CMD_HASHUNIEN(ucast) |
FW_CMD_LEN16(1));
c.u.hash.hashvec = cpu_to_be64(vec);
return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
}
/**
* t4_enable_vi - enable/disable a virtual interface
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @viid: the VI id
* @rx_en: 1=enable Rx, 0=disable Rx
* @tx_en: 1=enable Tx, 0=disable Tx
*
* Enables/disables a virtual interface.
*/
int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid,
bool rx_en, bool tx_en)
{
struct fw_vi_enable_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_viid = htonl(FW_CMD_OP(FW_VI_ENABLE_CMD) | FW_CMD_REQUEST |
FW_CMD_EXEC | FW_VI_ENABLE_CMD_VIID(viid));
c.ien_to_len16 = htonl(FW_VI_ENABLE_CMD_IEN(rx_en) |
FW_VI_ENABLE_CMD_EEN(tx_en) | FW_LEN16(c));
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_identify_port - identify a VI's port by blinking its LED
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @viid: the VI id
* @nblinks: how many times to blink LED at 2.5 Hz
*
* Identifies a VI's port by blinking its LED.
*/
int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid,
unsigned int nblinks)
{
struct fw_vi_enable_cmd c;
c.op_to_viid = htonl(FW_CMD_OP(FW_VI_ENABLE_CMD) | FW_CMD_REQUEST |
FW_CMD_EXEC | FW_VI_ENABLE_CMD_VIID(viid));
c.ien_to_len16 = htonl(FW_VI_ENABLE_CMD_LED | FW_LEN16(c));
c.blinkdur = htons(nblinks);
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_iq_free - free an ingress queue and its FLs
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @pf: the PF owning the queues
* @vf: the VF owning the queues
* @iqtype: the ingress queue type
* @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 FLs, if any.
*/
int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int iqtype, unsigned int iqid,
unsigned int fl0id, unsigned int fl1id)
{
struct fw_iq_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_vfn = htonl(FW_CMD_OP(FW_IQ_CMD) | FW_CMD_REQUEST |
FW_CMD_EXEC | FW_IQ_CMD_PFN(pf) |
FW_IQ_CMD_VFN(vf));
c.alloc_to_len16 = htonl(FW_IQ_CMD_FREE | FW_LEN16(c));
c.type_to_iqandstindex = htonl(FW_IQ_CMD_TYPE(iqtype));
c.iqid = htons(iqid);
c.fl0id = htons(fl0id);
c.fl1id = htons(fl1id);
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_eth_eq_free - free an Ethernet egress queue
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @pf: the PF owning the queue
* @vf: the VF owning the queue
* @eqid: egress queue id
*
* Frees an Ethernet egress queue.
*/
int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int eqid)
{
struct fw_eq_eth_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_ETH_CMD) | FW_CMD_REQUEST |
FW_CMD_EXEC | FW_EQ_ETH_CMD_PFN(pf) |
FW_EQ_ETH_CMD_VFN(vf));
c.alloc_to_len16 = htonl(FW_EQ_ETH_CMD_FREE | FW_LEN16(c));
c.eqid_pkd = htonl(FW_EQ_ETH_CMD_EQID(eqid));
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_ctrl_eq_free - free a control egress queue
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @pf: the PF owning the queue
* @vf: the VF owning the queue
* @eqid: egress queue id
*
* Frees a control egress queue.
*/
int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int eqid)
{
struct fw_eq_ctrl_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_CTRL_CMD) | FW_CMD_REQUEST |
FW_CMD_EXEC | FW_EQ_CTRL_CMD_PFN(pf) |
FW_EQ_CTRL_CMD_VFN(vf));
c.alloc_to_len16 = htonl(FW_EQ_CTRL_CMD_FREE | FW_LEN16(c));
c.cmpliqid_eqid = htonl(FW_EQ_CTRL_CMD_EQID(eqid));
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_ofld_eq_free - free an offload egress queue
* @adap: the adapter
* @mbox: mailbox to use for the FW command
* @pf: the PF owning the queue
* @vf: the VF owning the queue
* @eqid: egress queue id
*
* Frees a control egress queue.
*/
int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int eqid)
{
struct fw_eq_ofld_cmd c;
memset(&c, 0, sizeof(c));
c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_OFLD_CMD) | FW_CMD_REQUEST |
FW_CMD_EXEC | FW_EQ_OFLD_CMD_PFN(pf) |
FW_EQ_OFLD_CMD_VFN(vf));
c.alloc_to_len16 = htonl(FW_EQ_OFLD_CMD_FREE | FW_LEN16(c));
c.eqid_pkd = htonl(FW_EQ_OFLD_CMD_EQID(eqid));
return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}
/**
* t4_handle_fw_rpl - process a FW reply message
* @adap: the adapter
* @rpl: start of the FW message
*
* Processes a FW message, such as link state change messages.
*/
int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl)
{
u8 opcode = *(const u8 *)rpl;
if (opcode == FW_PORT_CMD) { /* link/module state change message */
int speed = 0, fc = 0;
const struct fw_port_cmd *p = (void *)rpl;
int chan = FW_PORT_CMD_PORTID_GET(ntohl(p->op_to_portid));
int port = adap->chan_map[chan];
struct port_info *pi = adap2pinfo(adap, port);
struct link_config *lc = &pi->link_cfg;
u32 stat = ntohl(p->u.info.lstatus_to_modtype);
int link_ok = (stat & FW_PORT_CMD_LSTATUS) != 0;
u32 mod = FW_PORT_CMD_MODTYPE_GET(stat);
if (stat & FW_PORT_CMD_RXPAUSE)
fc |= PAUSE_RX;
if (stat & FW_PORT_CMD_TXPAUSE)
fc |= PAUSE_TX;
if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
speed = SPEED_100;
else if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
speed = SPEED_1000;
else if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
speed = SPEED_10000;
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;
t4_os_link_changed(adap, port, link_ok);
}
if (mod != pi->mod_type) {
pi->mod_type = mod;
t4_os_portmod_changed(adap, port);
}
}
return 0;
}
static void __devinit get_pci_mode(struct adapter *adapter,
struct pci_params *p)
{
u16 val;
u32 pcie_cap = pci_pcie_cap(adapter->pdev);
if (pcie_cap) {
pci_read_config_word(adapter->pdev, pcie_cap + PCI_EXP_LNKSTA,
&val);
p->speed = val & PCI_EXP_LNKSTA_CLS;
p->width = (val & PCI_EXP_LNKSTA_NLW) >> 4;
}
}
/**
* 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 & FW_PORT_CAP_ANEG) {
lc->advertising = lc->supported & ADVERT_MASK;
lc->autoneg = AUTONEG_ENABLE;
lc->requested_fc |= PAUSE_AUTONEG;
} else {
lc->advertising = 0;
lc->autoneg = AUTONEG_DISABLE;
}
}
int t4_wait_dev_ready(struct adapter *adap)
{
if (t4_read_reg(adap, PL_WHOAMI) != 0xffffffff)
return 0;
msleep(500);
return t4_read_reg(adap, PL_WHOAMI) != 0xffffffff ? 0 : -EIO;
}
static int __devinit get_flash_params(struct adapter *adap)
{
int ret;
u32 info;
ret = sf1_write(adap, 1, 1, 0, SF_RD_ID);
if (!ret)
ret = sf1_read(adap, 3, 0, 1, &info);
t4_write_reg(adap, SF_OP, 0); /* unlock SF */
if (ret)
return ret;
if ((info & 0xff) != 0x20) /* not a Numonix flash */
return -EINVAL;
info >>= 16; /* log2 of size */
if (info >= 0x14 && info < 0x18)
adap->params.sf_nsec = 1 << (info - 16);
else if (info == 0x18)
adap->params.sf_nsec = 64;
else
return -EINVAL;
adap->params.sf_size = 1 << info;
adap->params.sf_fw_start =
t4_read_reg(adap, CIM_BOOT_CFG) & BOOTADDR_MASK;
return 0;
}
/**
* t4_prep_adapter - prepare SW and HW for operation
* @adapter: the adapter
* @reset: if true perform a HW reset
*
* Initialize adapter SW state for the various HW modules, set initial
* values for some adapter tunables, take PHYs out of reset, and
* initialize the MDIO interface.
*/
int __devinit t4_prep_adapter(struct adapter *adapter)
{
int ret;
ret = t4_wait_dev_ready(adapter);
if (ret < 0)
return ret;
get_pci_mode(adapter, &adapter->params.pci);
adapter->params.rev = t4_read_reg(adapter, PL_REV);
ret = get_flash_params(adapter);
if (ret < 0) {
dev_err(adapter->pdev_dev, "error %d identifying flash\n", ret);
return ret;
}
ret = get_vpd_params(adapter, &adapter->params.vpd);
if (ret < 0)
return ret;
init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);
/*
* Default port for debugging in case we can't reach FW.
*/
adapter->params.nports = 1;
adapter->params.portvec = 1;
return 0;
}
int __devinit t4_port_init(struct adapter *adap, int mbox, int pf, int vf)
{
u8 addr[6];
int ret, i, j = 0;
struct fw_port_cmd c;
struct fw_rss_vi_config_cmd rvc;
memset(&c, 0, sizeof(c));
memset(&rvc, 0, sizeof(rvc));
for_each_port(adap, i) {
unsigned int rss_size;
struct port_info *p = adap2pinfo(adap, i);
while ((adap->params.portvec & (1 << j)) == 0)
j++;
c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) |
FW_CMD_REQUEST | FW_CMD_READ |
FW_PORT_CMD_PORTID(j));
c.action_to_len16 = htonl(
FW_PORT_CMD_ACTION(FW_PORT_ACTION_GET_PORT_INFO) |
FW_LEN16(c));
ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
if (ret)
return ret;
ret = t4_alloc_vi(adap, mbox, j, pf, vf, 1, addr, &rss_size);
if (ret < 0)
return ret;
p->viid = ret;
p->tx_chan = j;
p->lport = j;
p->rss_size = rss_size;
memcpy(adap->port[i]->dev_addr, addr, ETH_ALEN);
memcpy(adap->port[i]->perm_addr, addr, ETH_ALEN);
adap->port[i]->dev_id = j;
ret = ntohl(c.u.info.lstatus_to_modtype);
p->mdio_addr = (ret & FW_PORT_CMD_MDIOCAP) ?
FW_PORT_CMD_MDIOADDR_GET(ret) : -1;
p->port_type = FW_PORT_CMD_PTYPE_GET(ret);
p->mod_type = FW_PORT_MOD_TYPE_NA;
rvc.op_to_viid = htonl(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
FW_CMD_REQUEST | FW_CMD_READ |
FW_RSS_VI_CONFIG_CMD_VIID(p->viid));
rvc.retval_len16 = htonl(FW_LEN16(rvc));
ret = t4_wr_mbox(adap, mbox, &rvc, sizeof(rvc), &rvc);
if (ret)
return ret;
p->rss_mode = ntohl(rvc.u.basicvirtual.defaultq_to_udpen);
init_link_config(&p->link_cfg, ntohs(c.u.info.pcap));
j++;
}
return 0;
}
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