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

Tony Nguyen says:

====================
Prepare for Intel IPU E2000 (GEN3)

This is the first part in introducing RDMA support for idpf.

----------------------------------------------------------------
Tatyana Nikolova says:

To align with review comments, the patch series introducing RDMA
RoCEv2 support for the Intel Infrastructure Processing Unit (IPU)
E2000 line of products is going to be submitted in three parts:

1. Modify ice to use specific and common IIDC definitions and
   pass a core device info to irdma.

2. Add RDMA support to idpf and modify idpf to use specific and
   common IIDC definitions and pass a core device info to irdma.

3. Add RDMA RoCEv2 support for the E2000 products, referred to as
   GEN3 to irdma.

This first part is a 5 patch series based on the original
"iidc/ice/irdma: Update IDC to support multiple consumers" patch
to allow for multiple CORE PCI drivers, using the auxbus.

Patches:
1) Move header file to new name for clarity and replace ice
   specific DSCP define with a kernel equivalent one in irdma
2) Unify naming convention
3) Separate header file into common and driver specific info
4) Replace ice specific DSCP define with a kernel equivalent
   one in ice
5) Implement core device info struct and update drivers to use it
----------------------------------------------------------------

v1: https://lore.kernel.org/20250505212037.2092288-1-anthony.l.nguyen@intel.com

IWL reviews:
[v5] https://lore.kernel.org/20250416021549.606-1-tatyana.e.nikolova@intel.com
[v4] https://lore.kernel.org/20250225050428.2166-1-tatyana.e.nikolova@intel.com
[v3] https://lore.kernel.org/20250207194931.1569-1-tatyana.e.nikolova@intel.com
[v2] https://lore.kernel.org/20240824031924.421-1-tatyana.e.nikolova@intel.com
[v1] https://lore.kernel.org/20240724233917.704-1-tatyana.e.nikolova@intel.com

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/linux:
  iidc/ice/irdma: Update IDC to support multiple consumers
  ice: Replace ice specific DSCP mapping num with a kernel define
  iidc/ice/irdma: Break iidc.h into two headers
  iidc/ice/irdma: Rename to iidc_* convention
  iidc/ice/irdma: Rename IDC header file

====================

Link: https://patch.msgid.link/20250509200712.2911060-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 42 insertions, 5 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
index 67988c7ab08e..533eb8930aa8 100644
--- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
@@ -352,8 +352,8 @@ int ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked)
 	struct ice_aqc_port_ets_elem buf = { 0 };
 	struct ice_dcbx_cfg *old_cfg, *curr_cfg;
 	struct device *dev = ice_pf_to_dev(pf);
+	struct iidc_rdma_event *event;
 	int ret = ICE_DCB_NO_HW_CHG;
-	struct iidc_event *event;
 	struct ice_vsi *pf_vsi;
 
 	curr_cfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg;
@@ -405,7 +405,7 @@ int ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked)
 		goto free_cfg;
 	}
 
-	set_bit(IIDC_EVENT_BEFORE_TC_CHANGE, event->type);
+	set_bit(IIDC_RDMA_EVENT_BEFORE_TC_CHANGE, event->type);
 	ice_send_event_to_aux(pf, event);
 	kfree(event);
 
@@ -740,7 +740,9 @@ static int ice_dcb_noncontig_cfg(struct ice_pf *pf)
 void ice_pf_dcb_recfg(struct ice_pf *pf, bool locked)
 {
 	struct ice_dcbx_cfg *dcbcfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg;
-	struct iidc_event *event;
+	struct iidc_rdma_priv_dev_info *privd;
+	struct iidc_rdma_core_dev_info *cdev;
+	struct iidc_rdma_event *event;
 	u8 tc_map = 0;
 	int v, ret;
 
@@ -783,13 +785,17 @@ void ice_pf_dcb_recfg(struct ice_pf *pf, bool locked)
 		if (vsi->type == ICE_VSI_PF)
 			ice_dcbnl_set_all(vsi);
 	}
-	if (!locked) {
+
+	cdev = pf->cdev_info;
+	if (cdev && !locked) {
+		privd = cdev->iidc_priv;
+		ice_setup_dcb_qos_info(pf, &privd->qos_info);
 		/* Notify the AUX drivers that TC change is finished */
 		event = kzalloc(sizeof(*event), GFP_KERNEL);
 		if (!event)
 			return;
 
-		set_bit(IIDC_EVENT_AFTER_TC_CHANGE, event->type);
+		set_bit(IIDC_RDMA_EVENT_AFTER_TC_CHANGE, event->type);
 		ice_send_event_to_aux(pf, event);
 		kfree(event);
 	}
@@ -945,6 +951,37 @@ ice_tx_prepare_vlan_flags_dcb(struct ice_tx_ring *tx_ring,
 }
 
 /**
+ * ice_setup_dcb_qos_info - Setup DCB QoS information
+ * @pf: ptr to ice_pf
+ * @qos_info: QoS param instance
+ */
+void ice_setup_dcb_qos_info(struct ice_pf *pf, struct iidc_rdma_qos_params *qos_info)
+{
+	struct ice_dcbx_cfg *dcbx_cfg;
+	unsigned int i;
+	u32 up2tc;
+
+	if (!pf || !qos_info)
+		return;
+
+	dcbx_cfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg;
+	up2tc = rd32(&pf->hw, PRTDCB_TUP2TC);
+
+	qos_info->num_tc = ice_dcb_get_num_tc(dcbx_cfg);
+
+	for (i = 0; i < IIDC_MAX_USER_PRIORITY; i++)
+		qos_info->up2tc[i] = (up2tc >> (i * 3)) & 0x7;
+
+	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
+		qos_info->tc_info[i].rel_bw = dcbx_cfg->etscfg.tcbwtable[i];
+
+	qos_info->pfc_mode = dcbx_cfg->pfc_mode;
+	if (qos_info->pfc_mode == IIDC_DSCP_PFC_MODE)
+		for (i = 0; i < DSCP_MAX; i++)
+			qos_info->dscp_map[i] = dcbx_cfg->dscp_map[i];
+}
+
+/**
  * ice_dcb_is_mib_change_pending - Check if MIB change is pending
  * @state: MIB change state
  */