Merge branch 'iwl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/linux

Nguyen, Anthony L says:

====================
iwl-next Intel Wired LAN Driver Updates 2022-02-07

Dave adds support for ice driver to provide DSCP QoS mappings to irdma
driver.

[1] https://lore.kernel.org/netdev/20220202191921.1638-1-shiraz.saleem@intel.com/

* 'iwl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/linux:
  ice: add support for DSCP QoS for IDC
====================

Link: https://lore.kernel.org/r/20220207235921.1303522-1-anthony.l.nguyen@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/intel/ice/ice_idc.c

@@ -227,6 +227,11 @@ void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos)
 
 	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
 		qos->tc_info[i].rel_bw = dcbx_cfg->etscfg.tcbwtable[i];
+
+	qos->pfc_mode = dcbx_cfg->pfc_mode;
+	if (qos->pfc_mode == IIDC_DSCP_PFC_MODE)
+		for (i = 0; i < IIDC_MAX_DSCP_MAPPING; i++)
+			qos->dscp_map[i] = dcbx_cfg->dscp_map[i];
 }
 EXPORT_SYMBOL_GPL(ice_get_qos_params);
 

include/linux/net/intel/iidc.h

@@ -32,6 +32,8 @@ enum iidc_rdma_protocol {
 };
 
 #define IIDC_MAX_USER_PRIORITY		8
+#define IIDC_MAX_DSCP_MAPPING		64
+#define IIDC_DSCP_PFC_MODE		0x1
 
 /* Struct to hold per RDMA Qset info */
 struct iidc_rdma_qset_params {
@@ -60,6 +62,8 @@ struct iidc_qos_params {
 	u8 vport_relative_bw;
 	u8 vport_priority_type;
 	u8 num_tc;
+	u8 pfc_mode;
+	u8 dscp_map[IIDC_MAX_DSCP_MAPPING];
 };
 
 struct iidc_event {