[dpdk-dev] [PATCH v2 12/27] event/dlb2: add v2.5 start domain

[Timothy McDaniel <timothy.mcdaniel@intel.com>]

Update low level functions to account for new register map
and hardware access macros.

Signed-off-by: Timothy McDaniel <timothy.mcdaniel@intel.com>
---
 drivers/event/dlb2/pf/base/dlb2_resource.c    | 123 -----------------
 .../event/dlb2/pf/base/dlb2_resource_new.c    | 130 ++++++++++++++++++
 2 files changed, 130 insertions(+), 123 deletions(-)

diff --git a/drivers/event/dlb2/pf/base/dlb2_resource.c b/drivers/event/dlb2/pf/base/dlb2_resource.c
index ab5b080c1..1e66ebf50 100644
--- a/drivers/event/dlb2/pf/base/dlb2_resource.c
+++ b/drivers/event/dlb2/pf/base/dlb2_resource.c
@@ -1245,129 +1245,6 @@ dlb2_get_domain_ldb_queue(u32 id,
 	return NULL;
 }
 
-static int dlb2_verify_start_domain_args(struct dlb2_hw *hw,
-					 u32 domain_id,
-					 struct dlb2_cmd_response *resp,
-					 bool vdev_req,
-					 unsigned int vdev_id)
-{
-	struct dlb2_hw_domain *domain;
-
-	domain = dlb2_get_domain_from_id(hw, domain_id, vdev_req, vdev_id);
-
-	if (domain == NULL) {
-		resp->status = DLB2_ST_INVALID_DOMAIN_ID;
-		return -EINVAL;
-	}
-
-	if (!domain->configured) {
-		resp->status = DLB2_ST_DOMAIN_NOT_CONFIGURED;
-		return -EINVAL;
-	}
-
-	if (domain->started) {
-		resp->status = DLB2_ST_DOMAIN_STARTED;
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static void dlb2_log_start_domain(struct dlb2_hw *hw,
-				  u32 domain_id,
-				  bool vdev_req,
-				  unsigned int vdev_id)
-{
-	DLB2_HW_DBG(hw, "DLB2 start domain arguments:\n");
-	if (vdev_req)
-		DLB2_HW_DBG(hw, "(Request from vdev %d)\n", vdev_id);
-	DLB2_HW_DBG(hw, "\tDomain ID: %d\n", domain_id);
-}
-
-/**
- * dlb2_hw_start_domain() - Lock the domain configuration
- * @hw:	Contains the current state of the DLB2 hardware.
- * @domain_id: Domain ID
- * @arg: User-provided arguments (unused, here for ioctl callback template).
- * @resp: Response to user.
- * @vdev_req: Request came from a virtual device.
- * @vdev_id: If vdev_req is true, this contains the virtual device's ID.
- *
- * Return: returns < 0 on error, 0 otherwise. If the driver is unable to
- * satisfy a request, resp->status will be set accordingly.
- */
-int
-dlb2_hw_start_domain(struct dlb2_hw *hw,
-		     u32 domain_id,
-		     struct dlb2_start_domain_args *arg,
-		     struct dlb2_cmd_response *resp,
-		     bool vdev_req,
-		     unsigned int vdev_id)
-{
-	struct dlb2_list_entry *iter;
-	struct dlb2_dir_pq_pair *dir_queue;
-	struct dlb2_ldb_queue *ldb_queue;
-	struct dlb2_hw_domain *domain;
-	int ret;
-	RTE_SET_USED(arg);
-	RTE_SET_USED(iter);
-
-	dlb2_log_start_domain(hw, domain_id, vdev_req, vdev_id);
-
-	ret = dlb2_verify_start_domain_args(hw,
-					    domain_id,
-					    resp,
-					    vdev_req,
-					    vdev_id);
-	if (ret)
-		return ret;
-
-	domain = dlb2_get_domain_from_id(hw, domain_id, vdev_req, vdev_id);
-	if (domain == NULL) {
-		DLB2_HW_ERR(hw,
-			    "[%s():%d] Internal error: domain not found\n",
-			    __func__, __LINE__);
-		return -EFAULT;
-	}
-
-	/*
-	 * Enable load-balanced and directed queue write permissions for the
-	 * queues this domain owns. Without this, the DLB2 will drop all
-	 * incoming traffic to those queues.
-	 */
-	DLB2_DOM_LIST_FOR(domain->used_ldb_queues, ldb_queue, iter) {
-		union dlb2_sys_ldb_vasqid_v r0 = { {0} };
-		unsigned int offs;
-
-		r0.field.vasqid_v = 1;
-
-		offs = domain->id.phys_id * DLB2_MAX_NUM_LDB_QUEUES +
-			ldb_queue->id.phys_id;
-
-		DLB2_CSR_WR(hw, DLB2_SYS_LDB_VASQID_V(offs), r0.val);
-	}
-
-	DLB2_DOM_LIST_FOR(domain->used_dir_pq_pairs, dir_queue, iter) {
-		union dlb2_sys_dir_vasqid_v r0 = { {0} };
-		unsigned int offs;
-
-		r0.field.vasqid_v = 1;
-
-		offs = domain->id.phys_id * DLB2_MAX_NUM_DIR_PORTS(hw->ver) +
-			dir_queue->id.phys_id;
-
-		DLB2_CSR_WR(hw, DLB2_SYS_DIR_VASQID_V(offs), r0.val);
-	}
-
-	dlb2_flush_csr(hw);
-
-	domain->started = true;
-
-	resp->status = 0;
-
-	return 0;
-}
-
 static void dlb2_log_get_dir_queue_depth(struct dlb2_hw *hw,
 					 u32 domain_id,
 					 u32 queue_id,
diff --git a/drivers/event/dlb2/pf/base/dlb2_resource_new.c b/drivers/event/dlb2/pf/base/dlb2_resource_new.c
index 181922fe3..e806a60ac 100644
--- a/drivers/event/dlb2/pf/base/dlb2_resource_new.c
+++ b/drivers/event/dlb2/pf/base/dlb2_resource_new.c
@@ -5774,3 +5774,133 @@ int dlb2_hw_pending_port_unmaps(struct dlb2_hw *hw,
 
 	return 0;
 }
+
+static int dlb2_verify_start_domain_args(struct dlb2_hw *hw,
+					 u32 domain_id,
+					 struct dlb2_cmd_response *resp,
+					 bool vdev_req,
+					 unsigned int vdev_id,
+					 struct dlb2_hw_domain **out_domain)
+{
+	struct dlb2_hw_domain *domain;
+
+	domain = dlb2_get_domain_from_id(hw, domain_id, vdev_req, vdev_id);
+
+	if (!domain) {
+		resp->status = DLB2_ST_INVALID_DOMAIN_ID;
+		return -EINVAL;
+	}
+
+	if (!domain->configured) {
+		resp->status = DLB2_ST_DOMAIN_NOT_CONFIGURED;
+		return -EINVAL;
+	}
+
+	if (domain->started) {
+		resp->status = DLB2_ST_DOMAIN_STARTED;
+		return -EINVAL;
+	}
+
+	*out_domain = domain;
+
+	return 0;
+}
+
+static void dlb2_log_start_domain(struct dlb2_hw *hw,
+				  u32 domain_id,
+				  bool vdev_req,
+				  unsigned int vdev_id)
+{
+	DLB2_HW_DBG(hw, "DLB2 start domain arguments:\n");
+	if (vdev_req)
+		DLB2_HW_DBG(hw, "(Request from vdev %d)\n", vdev_id);
+	DLB2_HW_DBG(hw, "\tDomain ID: %d\n", domain_id);
+}
+
+/**
+ * dlb2_hw_start_domain() - start a scheduling domain
+ * @hw: dlb2_hw handle for a particular device.
+ * @domain_id: domain ID.
+ * @arg: start domain arguments.
+ * @resp: response structure.
+ * @vdev_req: indicates whether this request came from a vdev.
+ * @vdev_id: If vdev_req is true, this contains the vdev's ID.
+ *
+ * This function starts a scheduling domain, which allows applications to send
+ * traffic through it. Once a domain is started, its resources can no longer be
+ * configured (besides QID remapping and port enable/disable).
+ *
+ * A vdev can be either an SR-IOV virtual function or a Scalable IOV virtual
+ * device.
+ *
+ * Return:
+ * Returns 0 upon success, < 0 otherwise. If an error occurs, resp->status is
+ * assigned a detailed error code from enum dlb2_error.
+ *
+ * Errors:
+ * EINVAL - the domain is not configured, or the domain is already started.
+ */
+int
+dlb2_hw_start_domain(struct dlb2_hw *hw,
+		     u32 domain_id,
+		     struct dlb2_start_domain_args *args,
+		     struct dlb2_cmd_response *resp,
+		     bool vdev_req,
+		     unsigned int vdev_id)
+{
+	struct dlb2_list_entry *iter;
+	struct dlb2_dir_pq_pair *dir_queue;
+	struct dlb2_ldb_queue *ldb_queue;
+	struct dlb2_hw_domain *domain;
+	int ret;
+	RTE_SET_USED(args);
+	RTE_SET_USED(iter);
+
+	dlb2_log_start_domain(hw, domain_id, vdev_req, vdev_id);
+
+	ret = dlb2_verify_start_domain_args(hw,
+					    domain_id,
+					    resp,
+					    vdev_req,
+					    vdev_id,
+					    &domain);
+	if (ret)
+		return ret;
+
+	/*
+	 * Enable load-balanced and directed queue write permissions for the
+	 * queues this domain owns. Without this, the DLB2 will drop all
+	 * incoming traffic to those queues.
+	 */
+	DLB2_DOM_LIST_FOR(domain->used_ldb_queues, ldb_queue, iter) {
+		u32 vasqid_v = 0;
+		unsigned int offs;
+
+		DLB2_BIT_SET(vasqid_v, DLB2_SYS_LDB_VASQID_V_VASQID_V);
+
+		offs = domain->id.phys_id * DLB2_MAX_NUM_LDB_QUEUES +
+			ldb_queue->id.phys_id;
+
+		DLB2_CSR_WR(hw, DLB2_SYS_LDB_VASQID_V(offs), vasqid_v);
+	}
+
+	DLB2_DOM_LIST_FOR(domain->used_dir_pq_pairs, dir_queue, iter) {
+		u32 vasqid_v = 0;
+		unsigned int offs;
+
+		DLB2_BIT_SET(vasqid_v, DLB2_SYS_DIR_VASQID_V_VASQID_V);
+
+		offs = domain->id.phys_id * DLB2_MAX_NUM_DIR_PORTS(hw->ver) +
+			dir_queue->id.phys_id;
+
+		DLB2_CSR_WR(hw, DLB2_SYS_DIR_VASQID_V(offs), vasqid_v);
+	}
+
+	dlb2_flush_csr(hw);
+
+	domain->started = true;
+
+	resp->status = 0;
+
+	return 0;
+}
-- 
2.23.0