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net/sfc: add HW switch ID helpers

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The driver will need a means to figure out relationship between
RTE ethdev instances and underlying HW switch entities. For now,
use board serial number string as a unique HW switch identifier.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
This commit is contained in:
Ivan Malov 2020-10-20 10:13:22 +01:00 committed by Ferruh Yigit
parent 833cfcd590
commit e86b48aa46
2 changed files with 52 additions and 0 deletions
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44
drivers/net/sfc/sfc.c
View File

@ -1259,3 +1259,47 @@ sfc_register_logtype(const struct rte_pci_addr *pci_addr,
return ret;
}
struct sfc_hw_switch_id {
char board_sn[RTE_SIZEOF_FIELD(efx_nic_board_info_t, enbi_serial)];
};
int
sfc_hw_switch_id_init(struct sfc_adapter *sa,
struct sfc_hw_switch_id **idp)
{
efx_nic_board_info_t board_info;
struct sfc_hw_switch_id *id;
int rc;
if (idp == NULL)
return EINVAL;
id = rte_zmalloc("sfc_hw_switch_id", sizeof(*id), 0);
if (id == NULL)
return ENOMEM;
rc = efx_nic_get_board_info(sa->nic, &board_info);
if (rc != 0)
return rc;
memcpy(id->board_sn, board_info.enbi_serial, sizeof(id->board_sn));
*idp = id;
return 0;
}
void
sfc_hw_switch_id_fini(__rte_unused struct sfc_adapter *sa,
struct sfc_hw_switch_id *id)
{
rte_free(id);
}
bool
sfc_hw_switch_ids_equal(const struct sfc_hw_switch_id *left,
const struct sfc_hw_switch_id *right)
{
return strcmp(left->board_sn, right->board_sn) == 0;
}

8
drivers/net/sfc/sfc.h
View File

@ -403,6 +403,14 @@ int sfc_port_reset_mac_stats(struct sfc_adapter *sa);
int sfc_set_rx_mode(struct sfc_adapter *sa);
int sfc_set_rx_mode_unchecked(struct sfc_adapter *sa);
struct sfc_hw_switch_id;
int sfc_hw_switch_id_init(struct sfc_adapter *sa,
struct sfc_hw_switch_id **idp);
void sfc_hw_switch_id_fini(struct sfc_adapter *sa,
struct sfc_hw_switch_id *idp);
bool sfc_hw_switch_ids_equal(const struct sfc_hw_switch_id *left,
const struct sfc_hw_switch_id *right);
#ifdef __cplusplus
}