diff options
Diffstat (limited to 'drivers/net/sfc/base/efx_mcdi.h')
| -rw-r--r-- | drivers/net/sfc/base/efx_mcdi.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/sfc/base/efx_mcdi.h b/drivers/net/sfc/base/efx_mcdi.h index 21727713..1f355c02 100644 --- a/drivers/net/sfc/base/efx_mcdi.h +++ b/drivers/net/sfc/base/efx_mcdi.h @@ -400,6 +400,17 @@ efx_mcdi_phy_module_get_info( (((mask) & (MC_CMD_PRIVILEGE_MASK_IN_GRP_ ## priv)) == \ (MC_CMD_PRIVILEGE_MASK_IN_GRP_ ## priv)) +/* + * The buffer size must be a multiple of dword to ensure that MCDI works + * properly with Siena based boards (which use on-chip buffer). Also, it + * should be at minimum the size of two dwords to allow space for extended + * error responses if the request/response buffer sizes are smaller. + */ +#define EFX_MCDI_DECLARE_BUF(_name, _in_len, _out_len) \ + uint8_t _name[P2ROUNDUP(MAX(MAX(_in_len, _out_len), \ + (2 * sizeof (efx_dword_t))), \ + sizeof (efx_dword_t))] = {0} + typedef enum efx_mcdi_feature_id_e { EFX_MCDI_FEATURE_FW_UPDATE = 0, EFX_MCDI_FEATURE_LINK_CONTROL, |