Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/nex

t-queue

Tony Nguyen says:

====================
ice: Implement support for SRIOV + LAG

Dave Ertman says:

Implement support for SRIOV VF's on interfaces that are in an
aggregate interface.

The first interface added into the aggregate will be flagged as
the primary interface, and this primary interface will be
responsible for managing the VF's resources.  VF's created on the
primary are the only VFs that will be supported on the aggregate.
Only Active-Backup mode will be supported and only aggregates whose
primary interface is in switchdev mode will be supported.

The ice-lag DDP must be loaded to support this feature.

Additional restrictions on what interfaces can be added to the aggregate
and still support SRIOV VFs are:
- interfaces have to all be on the same physical NIC
- all interfaces have to have the same QoS settings
- interfaces have to have the FW LLDP agent disabled
- only the primary interface is to be put into switchdev mode
- no more than two interfaces in the aggregate
---
v2:
- Move NULL check for q_ctx in ice_lag_qbuf_recfg() earlier (patch 6)

v1: https://lore.kernel.org/netdev/20230726182141.3797928-1-anthony.l.nguyen@intel.com/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 56 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index e16d4c83ed5f..dade0a50299c 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -2241,6 +2241,14 @@ ice_parse_common_caps(struct ice_hw *hw, struct ice_hw_common_caps *caps,
 			  "%s: reset_restrict_support = %d\n", prefix,
 			  caps->reset_restrict_support);
 		break;
+	case ICE_AQC_CAPS_FW_LAG_SUPPORT:
+		caps->roce_lag = !!(number & ICE_AQC_BIT_ROCEV2_LAG);
+		ice_debug(hw, ICE_DBG_INIT, "%s: roce_lag = %u\n",
+			  prefix, caps->roce_lag);
+		caps->sriov_lag = !!(number & ICE_AQC_BIT_SRIOV_LAG);
+		ice_debug(hw, ICE_DBG_INIT, "%s: sriov_lag = %u\n",
+			  prefix, caps->sriov_lag);
+		break;
 	default:
 		/* Not one of the recognized common capabilities */
 		found = false;
@@ -4222,6 +4230,53 @@ do_aq:
 }
 
 /**
+ * ice_aq_cfg_lan_txq
+ * @hw: pointer to the hardware structure
+ * @buf: buffer for command
+ * @buf_size: size of buffer in bytes
+ * @num_qs: number of queues being configured
+ * @oldport: origination lport
+ * @newport: destination lport
+ * @cd: pointer to command details structure or NULL
+ *
+ * Move/Configure LAN Tx queue (0x0C32)
+ *
+ * There is a better AQ command to use for moving nodes, so only coding
+ * this one for configuring the node.
+ */
+int
+ice_aq_cfg_lan_txq(struct ice_hw *hw, struct ice_aqc_cfg_txqs_buf *buf,
+		   u16 buf_size, u16 num_qs, u8 oldport, u8 newport,
+		   struct ice_sq_cd *cd)
+{
+	struct ice_aqc_cfg_txqs *cmd;
+	struct ice_aq_desc desc;
+	int status;
+
+	cmd = &desc.params.cfg_txqs;
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_cfg_txqs);
+	desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+
+	if (!buf)
+		return -EINVAL;
+
+	cmd->cmd_type = ICE_AQC_Q_CFG_TC_CHNG;
+	cmd->num_qs = num_qs;
+	cmd->port_num_chng = (oldport & ICE_AQC_Q_CFG_SRC_PRT_M);
+	cmd->port_num_chng |= (newport << ICE_AQC_Q_CFG_DST_PRT_S) &
+			      ICE_AQC_Q_CFG_DST_PRT_M;
+	cmd->time_out = (5 << ICE_AQC_Q_CFG_TIMEOUT_S) &
+			ICE_AQC_Q_CFG_TIMEOUT_M;
+	cmd->blocked_cgds = 0;
+
+	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
+	if (status)
+		ice_debug(hw, ICE_DBG_SCHED, "Failed to reconfigure nodes %d\n",
+			  hw->adminq.sq_last_status);
+	return status;
+}
+
+/**
  * ice_aq_add_rdma_qsets
  * @hw: pointer to the hardware structure
  * @num_qset_grps: Number of RDMA Qset groups
@@ -4700,6 +4755,7 @@ ice_dis_vsi_txq(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u8 num_queues,
 			break;
 		ice_free_sched_node(pi, node);
 		q_ctx->q_handle = ICE_INVAL_Q_HANDLE;
+		q_ctx->q_teid = ICE_INVAL_TEID;
 	}
 	mutex_unlock(&pi->sched_lock);
 	kfree(qg_list);