diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 94 |
1 files changed, 39 insertions, 55 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index c32b9100eec3..04e28090fef3 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -52,7 +52,8 @@ enum ice_status ice_clear_pf_cfg(struct ice_hw *hw) * is returned in user specified buffer. Please interpret user specified * buffer as "manage_mac_read" response. * Response such as various MAC addresses are stored in HW struct (port.mac) - * ice_aq_discover_caps is expected to be called before this function is called. + * ice_discover_dev_caps is expected to be called before this function is + * called. */ static enum ice_status ice_aq_manage_mac_read(struct ice_hw *hw, void *buf, u16 buf_size, @@ -2002,30 +2003,6 @@ ice_parse_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p, } /** - * ice_parse_caps - parse function/device capabilities - * @hw: pointer to the HW struct - * @buf: pointer to a buffer containing function/device capability records - * @cap_count: number of capability records in the list - * @opc: type of capabilities list to parse - * - * Helper function to parse function(0x000a)/device(0x000b) capabilities list. - */ -static void -ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count, - enum ice_adminq_opc opc) -{ - if (!buf) - return; - - if (opc == ice_aqc_opc_list_dev_caps) - ice_parse_dev_caps(hw, &hw->dev_caps, buf, cap_count); - else if (opc == ice_aqc_opc_list_func_caps) - ice_parse_func_caps(hw, &hw->func_caps, buf, cap_count); - else - ice_debug(hw, ICE_DBG_INIT, "wrong opcode\n"); -} - -/** * ice_aq_list_caps - query function/device capabilities * @hw: pointer to the HW struct * @buf: a buffer to hold the capabilities @@ -2068,47 +2045,52 @@ ice_aq_list_caps(struct ice_hw *hw, void *buf, u16 buf_size, u32 *cap_count, } /** - * ice_aq_discover_caps - query function/device capabilities - * @hw: pointer to the HW struct - * @buf: a virtual buffer to hold the capabilities - * @buf_size: Size of the virtual buffer - * @cap_count: cap count needed if AQ err==ENOMEM - * @opc: capabilities type to discover - pass in the command opcode - * @cd: pointer to command details structure or NULL - * - * Get the function(0x000a)/device(0x000b) capabilities description from - * the firmware. + * ice_discover_dev_caps - Read and extract device capabilities + * @hw: pointer to the hardware structure + * @dev_caps: pointer to device capabilities structure * - * NOTE: this function has the side effect of updating the hw->dev_caps or - * hw->func_caps by way of calling ice_parse_caps. + * Read the device capabilities and extract them into the dev_caps structure + * for later use. */ static enum ice_status -ice_aq_discover_caps(struct ice_hw *hw, void *buf, u16 buf_size, u32 *cap_count, - enum ice_adminq_opc opc, struct ice_sq_cd *cd) +ice_discover_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_caps) { - u32 local_cap_count = 0; enum ice_status status; + u32 cap_count = 0; + void *cbuf; - status = ice_aq_list_caps(hw, buf, buf_size, &local_cap_count, - opc, cd); + cbuf = kzalloc(ICE_AQ_MAX_BUF_LEN, GFP_KERNEL); + if (!cbuf) + return ICE_ERR_NO_MEMORY; + + /* Although the driver doesn't know the number of capabilities the + * device will return, we can simply send a 4KB buffer, the maximum + * possible size that firmware can return. + */ + cap_count = ICE_AQ_MAX_BUF_LEN / sizeof(struct ice_aqc_list_caps_elem); + + status = ice_aq_list_caps(hw, cbuf, ICE_AQ_MAX_BUF_LEN, &cap_count, + ice_aqc_opc_list_dev_caps, NULL); if (!status) - ice_parse_caps(hw, buf, local_cap_count, opc); - else if (hw->adminq.sq_last_status == ICE_AQ_RC_ENOMEM) - *cap_count = local_cap_count; + ice_parse_dev_caps(hw, dev_caps, cbuf, cap_count); + kfree(cbuf); return status; } /** - * ice_discover_caps - get info about the HW + * ice_discover_func_caps - Read and extract function capabilities * @hw: pointer to the hardware structure - * @opc: capabilities type to discover - pass in the command opcode + * @func_caps: pointer to function capabilities structure + * + * Read the function capabilities and extract them into the func_caps structure + * for later use. */ static enum ice_status -ice_discover_caps(struct ice_hw *hw, enum ice_adminq_opc opc) +ice_discover_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_caps) { enum ice_status status; - u32 cap_count; + u32 cap_count = 0; void *cbuf; cbuf = kzalloc(ICE_AQ_MAX_BUF_LEN, GFP_KERNEL); @@ -2121,8 +2103,10 @@ ice_discover_caps(struct ice_hw *hw, enum ice_adminq_opc opc) */ cap_count = ICE_AQ_MAX_BUF_LEN / sizeof(struct ice_aqc_list_caps_elem); - status = ice_aq_discover_caps(hw, cbuf, ICE_AQ_MAX_BUF_LEN, &cap_count, - opc, NULL); + status = ice_aq_list_caps(hw, cbuf, ICE_AQ_MAX_BUF_LEN, &cap_count, + ice_aqc_opc_list_func_caps, NULL); + if (!status) + ice_parse_func_caps(hw, func_caps, cbuf, cap_count); kfree(cbuf); return status; @@ -2200,11 +2184,11 @@ enum ice_status ice_get_caps(struct ice_hw *hw) { enum ice_status status; - status = ice_discover_caps(hw, ice_aqc_opc_list_dev_caps); - if (!status) - status = ice_discover_caps(hw, ice_aqc_opc_list_func_caps); + status = ice_discover_dev_caps(hw, &hw->dev_caps); + if (status) + return status; - return status; + return ice_discover_func_caps(hw, &hw->func_caps); } /** |