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cxgb4: Add support in cxgb4 to get expansion rom version via ethtool

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Add support to get option/expansion rom version flashed in the adapter via
ethtool getdrvinfo function.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hariprasad Shenai 2015-02-09 12:07:30 +05:30 committed by David S. Miller
parent a450515204
commit ba3f8cd55f
4 changed files with 55 additions and 0 deletions
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1
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
View File

@ -1121,6 +1121,7 @@ int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
unsigned int t4_flash_cfg_addr(struct adapter *adapter);
int t4_get_fw_version(struct adapter *adapter, u32 *vers);
int t4_get_tp_version(struct adapter *adapter, u32 *vers);
int t4_get_exprom_version(struct adapter *adapter, u32 *vers);
int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info,
const u8 *fw_data, unsigned int fw_size,
struct fw_hdr *card_fw, enum dev_state state, int *reset);

9
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View File

@ -1419,6 +1419,7 @@ static int get_eeprom_len(struct net_device *dev)
static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
struct adapter *adapter = netdev2adap(dev);
u32 exprom_vers;
strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
strlcpy(info->version, DRV_VERSION, sizeof(info->version));
@ -1436,6 +1437,14 @@ static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
FW_HDR_FW_VER_MINOR_G(adapter->params.tp_vers),
FW_HDR_FW_VER_MICRO_G(adapter->params.tp_vers),
FW_HDR_FW_VER_BUILD_G(adapter->params.tp_vers));
if (!t4_get_exprom_version(adapter, &exprom_vers))
snprintf(info->erom_version, sizeof(info->erom_version),
"%u.%u.%u.%u",
FW_HDR_FW_VER_MAJOR_G(exprom_vers),
FW_HDR_FW_VER_MINOR_G(exprom_vers),
FW_HDR_FW_VER_MICRO_G(exprom_vers),
FW_HDR_FW_VER_BUILD_G(exprom_vers));
}
static void get_strings(struct net_device *dev, u32 stringset, u8 *data)

37
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
View File

@ -948,6 +948,43 @@ int t4_get_tp_version(struct adapter *adapter, u32 *vers)
1, vers, 0);
}
/**
* t4_get_exprom_version - return the Expansion ROM version (if any)
* @adapter: the adapter
* @vers: where to place the version
*
* Reads the Expansion ROM header from FLASH and returns the version
* number (if present) through the @vers return value pointer. We return
* this in the Firmware Version Format since it's convenient. Return
* 0 on success, -ENOENT if no Expansion ROM is present.
*/
int t4_get_exprom_version(struct adapter *adap, u32 *vers)
{
struct exprom_header {
unsigned char hdr_arr[16]; /* must start with 0x55aa */
unsigned char hdr_ver[4]; /* Expansion ROM version */
} *hdr;
u32 exprom_header_buf[DIV_ROUND_UP(sizeof(struct exprom_header),
sizeof(u32))];
int ret;
ret = t4_read_flash(adap, FLASH_EXP_ROM_START,
ARRAY_SIZE(exprom_header_buf), exprom_header_buf,
0);
if (ret)
return ret;
hdr = (struct exprom_header *)exprom_header_buf;
if (hdr->hdr_arr[0] != 0x55 || hdr->hdr_arr[1] != 0xaa)
return -ENOENT;
*vers = (FW_HDR_FW_VER_MAJOR_V(hdr->hdr_ver[0]) |
FW_HDR_FW_VER_MINOR_V(hdr->hdr_ver[1]) |
FW_HDR_FW_VER_MICRO_V(hdr->hdr_ver[2]) |
FW_HDR_FW_VER_BUILD_V(hdr->hdr_ver[3]));
return 0;
}
/* Is the given firmware API compatible with the one the driver was compiled
* with?
*/

8
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
View File

@ -3018,21 +3018,29 @@ enum fw_hdr_chip {
#define FW_HDR_FW_VER_MAJOR_S 24
#define FW_HDR_FW_VER_MAJOR_M 0xff
#define FW_HDR_FW_VER_MAJOR_V(x) \
((x) << FW_HDR_FW_VER_MAJOR_S)
#define FW_HDR_FW_VER_MAJOR_G(x) \
(((x) >> FW_HDR_FW_VER_MAJOR_S) & FW_HDR_FW_VER_MAJOR_M)
#define FW_HDR_FW_VER_MINOR_S 16
#define FW_HDR_FW_VER_MINOR_M 0xff
#define FW_HDR_FW_VER_MINOR_V(x) \
((x) << FW_HDR_FW_VER_MINOR_S)
#define FW_HDR_FW_VER_MINOR_G(x) \
(((x) >> FW_HDR_FW_VER_MINOR_S) & FW_HDR_FW_VER_MINOR_M)
#define FW_HDR_FW_VER_MICRO_S 8
#define FW_HDR_FW_VER_MICRO_M 0xff
#define FW_HDR_FW_VER_MICRO_V(x) \
((x) << FW_HDR_FW_VER_MICRO_S)
#define FW_HDR_FW_VER_MICRO_G(x) \
(((x) >> FW_HDR_FW_VER_MICRO_S) & FW_HDR_FW_VER_MICRO_M)
#define FW_HDR_FW_VER_BUILD_S 0
#define FW_HDR_FW_VER_BUILD_M 0xff
#define FW_HDR_FW_VER_BUILD_V(x) \
((x) << FW_HDR_FW_VER_BUILD_S)
#define FW_HDR_FW_VER_BUILD_G(x) \
(((x) >> FW_HDR_FW_VER_BUILD_S) & FW_HDR_FW_VER_BUILD_M)