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| author | Tony Nguyen <anthony.l.nguyen@intel.com> | 2020-01-17 07:39:13 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2020-01-24 16:06:32 -0800 |
| commit | 31ad4e4ee1e4e2e12985e46aa6263c8bd5ad4271 (patch) | |
| tree | cbf13814243992bfaf27f9dddb360df2aa31c399 /drivers/net/ethernet/intel/ice/ice_common.c | |
| parent | c90ed40cefe187a20fc565650b119aa696abc2ed (diff) | |
| download | lwn-31ad4e4ee1e4e2e12985e46aa6263c8bd5ad4271.tar.gz lwn-31ad4e4ee1e4e2e12985e46aa6263c8bd5ad4271.zip | |
ice: Allocate flow profile
Create an extraction sequence based on the packet header protocols to be
programmed and allocate a flow profile for the extraction sequence.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_common.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index dd9af9c63755..8f86962fd052 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -1498,6 +1498,81 @@ void ice_release_res(struct ice_hw *hw, enum ice_aq_res_ids res) } /** + * ice_aq_alloc_free_res - command to allocate/free resources + * @hw: pointer to the HW struct + * @num_entries: number of resource entries in buffer + * @buf: Indirect buffer to hold data parameters and response + * @buf_size: size of buffer for indirect commands + * @opc: pass in the command opcode + * @cd: pointer to command details structure or NULL + * + * Helper function to allocate/free resources using the admin queue commands + */ +enum ice_status +ice_aq_alloc_free_res(struct ice_hw *hw, u16 num_entries, + struct ice_aqc_alloc_free_res_elem *buf, u16 buf_size, + enum ice_adminq_opc opc, struct ice_sq_cd *cd) +{ + struct ice_aqc_alloc_free_res_cmd *cmd; + struct ice_aq_desc desc; + + cmd = &desc.params.sw_res_ctrl; + + if (!buf) + return ICE_ERR_PARAM; + + if (buf_size < (num_entries * sizeof(buf->elem[0]))) + return ICE_ERR_PARAM; + + ice_fill_dflt_direct_cmd_desc(&desc, opc); + + desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); + + cmd->num_entries = cpu_to_le16(num_entries); + + return ice_aq_send_cmd(hw, &desc, buf, buf_size, cd); +} + +/** + * ice_alloc_hw_res - allocate resource + * @hw: pointer to the HW struct + * @type: type of resource + * @num: number of resources to allocate + * @btm: allocate from bottom + * @res: pointer to array that will receive the resources + */ +enum ice_status +ice_alloc_hw_res(struct ice_hw *hw, u16 type, u16 num, bool btm, u16 *res) +{ + struct ice_aqc_alloc_free_res_elem *buf; + enum ice_status status; + u16 buf_len; + + buf_len = struct_size(buf, elem, num - 1); + buf = kzalloc(buf_len, GFP_KERNEL); + if (!buf) + return ICE_ERR_NO_MEMORY; + + /* Prepare buffer to allocate resource. */ + buf->num_elems = cpu_to_le16(num); + buf->res_type = cpu_to_le16(type | ICE_AQC_RES_TYPE_FLAG_DEDICATED | + ICE_AQC_RES_TYPE_FLAG_IGNORE_INDEX); + if (btm) + buf->res_type |= cpu_to_le16(ICE_AQC_RES_TYPE_FLAG_SCAN_BOTTOM); + + status = ice_aq_alloc_free_res(hw, 1, buf, buf_len, + ice_aqc_opc_alloc_res, NULL); + if (status) + goto ice_alloc_res_exit; + + memcpy(res, buf->elem, sizeof(buf->elem) * num); + +ice_alloc_res_exit: + kfree(buf); + return status; +} + +/** * ice_get_num_per_func - determine number of resources per PF * @hw: pointer to the HW structure * @max: value to be evenly split between each PF |