net/ice/base: recognize 860 as iSCSI port in CEE mode

iSCSI can use both TCP ports 860 and 3260. However, in our current
implementation, the ice_aqc_opc_get_cee_dcb_cfg (0x0A07) AQ command
doesn't provide a way to communicate the protocol port number to the
AQ's caller. Thus, we assume that 3260 is the iSCSI port number at the
AQ's caller layer.

In this patch, we will rely on the dcbx-willing mode, desired QOS and
remote QOS configuration to determine which port number that iSCSI will
use.

Signed-off-by: Chinh T Cao <chinh.t.cao@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>

diff --git a/drivers/net/ice/base/ice_dcb.c b/drivers/net/ice/base/ice_dcb.c
index f5f375a..3510385 100644 (file)
--- a/drivers/net/ice/base/ice_dcb.c
+++ b/drivers/net/ice/base/ice_dcb.c
@@ -738,22 +738,27 @@ ice_aq_get_cee_dcb_cfg(struct ice_hw *hw,
 /**
  * ice_cee_to_dcb_cfg
  * @cee_cfg: pointer to CEE configuration struct
- * @dcbcfg: DCB configuration struct
+ * @pi: port information structure
  *
  * Convert CEE configuration from firmware to DCB configuration
  */
 static void
 ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
-                  struct ice_dcbx_cfg *dcbcfg)
+                  struct ice_port_info *pi)
 {
        u32 status, tlv_status = LE32_TO_CPU(cee_cfg->tlv_status);
        u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift;
+       u8 i, j, err, sync, oper, app_index, ice_app_sel_type;
        u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio);
-       u8 i, err, sync, oper, app_index, ice_app_sel_type;
        u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift;
+       struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg;
        u16 ice_app_prot_id_type;
 
-       /* CEE PG data to ETS config */
+       dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
+       dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE;
+       dcbcfg->tlv_status = tlv_status;
+
+       /* CEE PG data */
        dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
 
        /* Note that the FW creates the oper_prio_tc nibbles reversed
@@ -780,10 +785,16 @@ ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
                }
        }
 
-       /* CEE PFC data to ETS config */
+       /* CEE PFC data */
        dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en;
        dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS;
 
+       /* CEE APP TLV data */
+       if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
+               cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg;
+       else
+               cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg;
+
        app_index = 0;
        for (i = 0; i < 3; i++) {
                if (i == 0) {
@@ -802,6 +813,18 @@ ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
                        ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S;
                        ice_app_sel_type = ICE_APP_SEL_TCPIP;
                        ice_app_prot_id_type = ICE_APP_PROT_ID_ISCSI;
+
+                       for (j = 0; j < cmp_dcbcfg->numapps; j++) {
+                               u16 prot_id = cmp_dcbcfg->app[j].prot_id;
+                               u8 sel = cmp_dcbcfg->app[j].selector;
+
+                               if  (sel == ICE_APP_SEL_TCPIP &&
+                                    (prot_id == ICE_APP_PROT_ID_ISCSI ||
+                                     prot_id == ICE_APP_PROT_ID_ISCSI_860)) {
+                                       ice_app_prot_id_type = prot_id;
+                                       break;
+                               }
+                       }
                } else {
                        /* FIP APP */
                        ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M;
@@ -892,11 +915,8 @@ enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi)
        ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL);
        if (ret == ICE_SUCCESS) {
                /* CEE mode */
-               dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
-               dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_CEE;
-               dcbx_cfg->tlv_status = LE32_TO_CPU(cee_cfg.tlv_status);
-               ice_cee_to_dcb_cfg(&cee_cfg, dcbx_cfg);
                ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE);
+               ice_cee_to_dcb_cfg(&cee_cfg, pi);
        } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) {
                /* CEE mode not enabled try querying IEEE data */
                dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;

diff --git a/drivers/net/ice/base/ice_type.h b/drivers/net/ice/base/ice_type.h
index 3d231db..7545235 100644 (file)
--- a/drivers/net/ice/base/ice_type.h
+++ b/drivers/net/ice/base/ice_type.h
@@ -755,19 +755,28 @@ struct ice_dcb_app_priority_table {
        u8 selector;
 };
 
-#define ICE_MAX_USER_PRIORITY  8
-#define ICE_DCBX_MAX_APPS      32
-#define ICE_LLDPDU_SIZE                1500
-#define ICE_TLV_STATUS_OPER    0x1
-#define ICE_TLV_STATUS_SYNC    0x2
-#define ICE_TLV_STATUS_ERR     0x4
-#define ICE_APP_PROT_ID_FCOE   0x8906
-#define ICE_APP_PROT_ID_ISCSI  0x0cbc
-#define ICE_APP_PROT_ID_FIP    0x8914
-#define ICE_APP_SEL_ETHTYPE    0x1
-#define ICE_APP_SEL_TCPIP      0x2
-#define ICE_CEE_APP_SEL_ETHTYPE        0x0
-#define ICE_CEE_APP_SEL_TCPIP  0x1
+#define ICE_MAX_USER_PRIORITY          8
+#define ICE_DCBX_MAX_APPS              32
+#define ICE_LLDPDU_SIZE                        1500
+#define ICE_TLV_STATUS_OPER            0x1
+#define ICE_TLV_STATUS_SYNC            0x2
+#define ICE_TLV_STATUS_ERR             0x4
+#ifndef ICE_APP_PROT_ID_FCOE
+#define ICE_APP_PROT_ID_FCOE           0x8906
+#endif /* ICE_APP_PROT_ID_FCOE */
+#ifndef ICE_APP_PROT_ID_ISCSI
+#define ICE_APP_PROT_ID_ISCSI          0x0cbc
+#endif /* ICE_APP_PROT_ID_ISCSI */
+#ifndef ICE_APP_PROT_ID_ISCSI_860
+#define ICE_APP_PROT_ID_ISCSI_860      0x035c
+#endif /* ICE_APP_PROT_ID_ISCSI_860 */
+#ifndef ICE_APP_PROT_ID_FIP
+#define ICE_APP_PROT_ID_FIP            0x8914
+#endif /* ICE_APP_PROT_ID_FIP */
+#define ICE_APP_SEL_ETHTYPE            0x1
+#define ICE_APP_SEL_TCPIP              0x2
+#define ICE_CEE_APP_SEL_ETHTYPE                0x0
+#define ICE_CEE_APP_SEL_TCPIP          0x1
 
 struct ice_dcbx_cfg {
        u32 numapps;