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/* Copyright (c) 2020, Intel Corporation. */
#include "ice.h"
#include "ice_lib.h"
#include "ice_devlink.h"
static int ice_info_get_dsn(struct ice_pf *pf, char *buf, size_t len)
{
u8 dsn[8];
/* Copy the DSN into an array in Big Endian format */
put_unaligned_be64(pci_get_dsn(pf->pdev), dsn);
snprintf(buf, len, "%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x",
dsn[0], dsn[1], dsn[2], dsn[3],
dsn[4], dsn[5], dsn[6], dsn[7]);
return 0;
}
static int ice_info_pba(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_hw *hw = &pf->hw;
enum ice_status status;
status = ice_read_pba_string(hw, (u8 *)buf, len);
if (status)
return -EIO;
return 0;
}
static int ice_info_fw_mgmt(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_hw *hw = &pf->hw;
snprintf(buf, len, "%u.%u.%u", hw->fw_maj_ver, hw->fw_min_ver,
hw->fw_patch);
return 0;
}
static int ice_info_fw_api(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_hw *hw = &pf->hw;
snprintf(buf, len, "%u.%u", hw->api_maj_ver, hw->api_min_ver);
return 0;
}
static int ice_info_fw_build(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_hw *hw = &pf->hw;
snprintf(buf, len, "0x%08x", hw->fw_build);
return 0;
}
static int ice_info_orom_ver(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_orom_info *orom = &pf->hw.nvm.orom;
snprintf(buf, len, "%u.%u.%u", orom->major, orom->build, orom->patch);
return 0;
}
static int ice_info_nvm_ver(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_nvm_info *nvm = &pf->hw.nvm;
snprintf(buf, len, "%x.%02x", nvm->major_ver, nvm->minor_ver);
return 0;
}
static int ice_info_eetrack(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_nvm_info *nvm = &pf->hw.nvm;
snprintf(buf, len, "0x%08x", nvm->eetrack);
return 0;
}
static int ice_info_ddp_pkg_name(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_hw *hw = &pf->hw;
snprintf(buf, len, "%s", hw->active_pkg_name);
return 0;
}
static int ice_info_ddp_pkg_version(struct ice_pf *pf, char *buf, size_t len)
{
struct ice_pkg_ver *pkg = &pf->hw.active_pkg_ver;
snprintf(buf, len, "%u.%u.%u.%u", pkg->major, pkg->minor, pkg->update,
pkg->draft);
return 0;
}
#define fixed(key, getter) { ICE_VERSION_FIXED, key, getter }
#define running(key, getter) { ICE_VERSION_RUNNING, key, getter }
enum ice_version_type {
ICE_VERSION_FIXED,
ICE_VERSION_RUNNING,
ICE_VERSION_STORED,
};
static const struct ice_devlink_version {
enum ice_version_type type;
const char *key;
int (*getter)(struct ice_pf *pf, char *buf, size_t len);
} ice_devlink_versions[] = {
fixed(DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, ice_info_pba),
running(DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, ice_info_fw_mgmt),
running("fw.mgmt.api", ice_info_fw_api),
running("fw.mgmt.build", ice_info_fw_build),
running(DEVLINK_INFO_VERSION_GENERIC_FW_UNDI, ice_info_orom_ver),
running("fw.psid.api", ice_info_nvm_ver),
running(DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID, ice_info_eetrack),
running("fw.app.name", ice_info_ddp_pkg_name),
running(DEVLINK_INFO_VERSION_GENERIC_FW_APP, ice_info_ddp_pkg_version),
};
/**
* ice_devlink_info_get - .info_get devlink handler
* @devlink: devlink instance structure
* @req: the devlink info request
* @extack: extended netdev ack structure
*
* Callback for the devlink .info_get operation. Reports information about the
* device.
*
* Return: zero on success or an error code on failure.
*/
static int ice_devlink_info_get(struct devlink *devlink,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct ice_pf *pf = devlink_priv(devlink);
char buf[100];
size_t i;
int err;
err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set driver name");
return err;
}
err = ice_info_get_dsn(pf, buf, sizeof(buf));
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to obtain serial number");
return err;
}
err = devlink_info_serial_number_put(req, buf);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set serial number");
return err;
}
for (i = 0; i < ARRAY_SIZE(ice_devlink_versions); i++) {
enum ice_version_type type = ice_devlink_versions[i].type;
const char *key = ice_devlink_versions[i].key;
err = ice_devlink_versions[i].getter(pf, buf, sizeof(buf));
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to obtain version info");
return err;
}
switch (type) {
case ICE_VERSION_FIXED:
err = devlink_info_version_fixed_put(req, key, buf);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set fixed version");
return err;
}
break;
case ICE_VERSION_RUNNING:
err = devlink_info_version_running_put(req, key, buf);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set running version");
return err;
}
break;
case ICE_VERSION_STORED:
err = devlink_info_version_stored_put(req, key, buf);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set stored version");
return err;
}
break;
}
}
return 0;
}
static const struct devlink_ops ice_devlink_ops = {
.info_get = ice_devlink_info_get,
};
static void ice_devlink_free(void *devlink_ptr)
{
devlink_free((struct devlink *)devlink_ptr);
}
/**
* ice_allocate_pf - Allocate devlink and return PF structure pointer
* @dev: the device to allocate for
*
* Allocate a devlink instance for this device and return the private area as
* the PF structure. The devlink memory is kept track of through devres by
* adding an action to remove it when unwinding.
*/
struct ice_pf *ice_allocate_pf(struct device *dev)
{
struct devlink *devlink;
devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf));
if (!devlink)
return NULL;
/* Add an action to teardown the devlink when unwinding the driver */
if (devm_add_action(dev, ice_devlink_free, devlink)) {
devlink_free(devlink);
return NULL;
}
return devlink_priv(devlink);
}
/**
* ice_devlink_register - Register devlink interface for this PF
* @pf: the PF to register the devlink for.
*
* Register the devlink instance associated with this physical function.
*
* Return: zero on success or an error code on failure.
*/
int ice_devlink_register(struct ice_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
struct device *dev = ice_pf_to_dev(pf);
int err;
err = devlink_register(devlink, dev);
if (err) {
dev_err(dev, "devlink registration failed: %d\n", err);
return err;
}
return 0;
}
/**
* ice_devlink_unregister - Unregister devlink resources for this PF.
* @pf: the PF structure to cleanup
*
* Releases resources used by devlink and cleans up associated memory.
*/
void ice_devlink_unregister(struct ice_pf *pf)
{
devlink_unregister(priv_to_devlink(pf));
}
/**
* ice_devlink_create_port - Create a devlink port for this PF
* @pf: the PF to create a port for
*
* Create and register a devlink_port for this PF. Note that although each
* physical function is connected to a separate devlink instance, the port
* will still be numbered according to the physical function id.
*
* Return: zero on success or an error code on failure.
*/
int ice_devlink_create_port(struct ice_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
struct ice_vsi *vsi = ice_get_main_vsi(pf);
struct device *dev = ice_pf_to_dev(pf);
int err;
if (!vsi) {
dev_err(dev, "%s: unable to find main VSI\n", __func__);
return -EIO;
}
devlink_port_attrs_set(&pf->devlink_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
pf->hw.pf_id, false, 0, NULL, 0);
err = devlink_port_register(devlink, &pf->devlink_port, pf->hw.pf_id);
if (err) {
dev_err(dev, "devlink_port_register failed: %d\n", err);
return err;
}
return 0;
}
/**
* ice_devlink_destroy_port - Destroy the devlink_port for this PF
* @pf: the PF to cleanup
*
* Unregisters the devlink_port structure associated with this PF.
*/
void ice_devlink_destroy_port(struct ice_pf *pf)
{
devlink_port_type_clear(&pf->devlink_port);
devlink_port_unregister(&pf->devlink_port);
}
/**
* ice_devlink_nvm_snapshot - Capture a snapshot of the Shadow RAM contents
* @devlink: the devlink instance
* @extack: extended ACK response structure
* @data: on exit points to snapshot data buffer
*
* This function is called in response to the DEVLINK_CMD_REGION_TRIGGER for
* the shadow-ram devlink region. It captures a snapshot of the shadow ram
* contents. This snapshot can later be viewed via the devlink-region
* interface.
*
* @returns zero on success, and updates the data pointer. Returns a non-zero
* error code on failure.
*/
static int ice_devlink_nvm_snapshot(struct devlink *devlink,
struct netlink_ext_ack *extack, u8 **data)
{
struct ice_pf *pf = devlink_priv(devlink);
struct device *dev = ice_pf_to_dev(pf);
struct ice_hw *hw = &pf->hw;
enum ice_status status;
void *nvm_data;
u32 nvm_size;
nvm_size = hw->nvm.flash_size;
nvm_data = vzalloc(nvm_size);
if (!nvm_data)
return -ENOMEM;
status = ice_acquire_nvm(hw, ICE_RES_READ);
if (status) {
dev_dbg(dev, "ice_acquire_nvm failed, err %d aq_err %d\n",
status, hw->adminq.sq_last_status);
NL_SET_ERR_MSG_MOD(extack, "Failed to acquire NVM semaphore");
vfree(nvm_data);
return -EIO;
}
status = ice_read_flat_nvm(hw, 0, &nvm_size, nvm_data, false);
if (status) {
dev_dbg(dev, "ice_read_flat_nvm failed after reading %u bytes, err %d aq_err %d\n",
nvm_size, status, hw->adminq.sq_last_status);
NL_SET_ERR_MSG_MOD(extack, "Failed to read NVM contents");
ice_release_nvm(hw);
vfree(nvm_data);
return -EIO;
}
ice_release_nvm(hw);
*data = nvm_data;
return 0;
}
static const struct devlink_region_ops ice_nvm_region_ops = {
.name = "nvm-flash",
.destructor = vfree,
.snapshot = ice_devlink_nvm_snapshot,
};
/**
* ice_devlink_init_regions - Initialize devlink regions
* @pf: the PF device structure
*
* Create devlink regions used to enable access to dump the contents of the
* flash memory on the device.
*/
void ice_devlink_init_regions(struct ice_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
struct device *dev = ice_pf_to_dev(pf);
u64 nvm_size;
nvm_size = pf->hw.nvm.flash_size;
pf->nvm_region = devlink_region_create(devlink, &ice_nvm_region_ops, 1,
nvm_size);
if (IS_ERR(pf->nvm_region)) {
dev_err(dev, "failed to create NVM devlink region, err %ld\n",
PTR_ERR(pf->nvm_region));
pf->nvm_region = NULL;
}
}
/**
* ice_devlink_destroy_regions - Destroy devlink regions
* @pf: the PF device structure
*
* Remove previously created regions for this PF.
*/
void ice_devlink_destroy_regions(struct ice_pf *pf)
{
if (pf->nvm_region)
devlink_region_destroy(pf->nvm_region);
}
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