net/qede/base: multi-Txq support on same queue-zone for VFs

[dpdk.git] / drivers / net / qede / base / ecore_l2.h

diff --git a/drivers/net/qede/base/ecore_l2.h b/drivers/net/qede/base/ecore_l2.h
index 4b0ccb4..3f86eac 100644 (file)
--- a/drivers/net/qede/base/ecore_l2.h
+++ b/drivers/net/qede/base/ecore_l2.h
@@ -15,6 +15,34 @@
 #include "ecore_spq.h"
 #include "ecore_l2_api.h"
 
+#define MAX_QUEUES_PER_QZONE   (sizeof(unsigned long) * 8)
+#define ECORE_QUEUE_CID_PF     (0xff)
+
+/* Additional parameters required for initialization of the queue_cid
+ * and are relevant only for a PF initializing one for its VFs.
+ */
+struct ecore_queue_cid_vf_params {
+       /* Should match the VF's relative index */
+       u8 vfid;
+
+       /* 0-based queue index. Should reflect the relative qzone the
+        * VF thinks is associated with it [in its range].
+        */
+       u8 vf_qid;
+
+       /* Indicates a VF is legacy, making it differ in several things:
+        *  - Producers would be placed in a different place.
+        *  - Makes assumptions regarding the CIDs.
+        */
+       bool b_legacy;
+
+       /* For VFs, this index arrives via TLV to diffrentiate between
+        * different queues opened on the same qzone, and is passed
+        * [where the PF would have allocated it internally for its own].
+        */
+       u8 qid_usage_idx;
+};
+
 struct ecore_queue_cid {
        /* 'Relative' is a relative term ;-). Usually the indices [not counting
         * SBs] would be PF-relative, but there are some cases where that isn't
@@ -31,22 +59,32 @@ struct ecore_queue_cid {
         * Notice this is relevant on the *PF* queue-cid of its VF's queues,
         * and not on the VF itself.
         */
-       bool is_vf;
+       u8 vfid;
        u8 vf_qid;
 
+       /* We need an additional index to diffrentiate between queues opened
+        * for same queue-zone, as VFs would have to communicate the info
+        * to the PF [otherwise PF has no way to diffrentiate].
+        */
+       u8 qid_usage_idx;
+
        /* Legacy VFs might have Rx producer located elsewhere */
        bool b_legacy_vf;
 
        struct ecore_hwfn *p_owner;
 };
 
+enum _ecore_status_t ecore_l2_alloc(struct ecore_hwfn *p_hwfn);
+void ecore_l2_setup(struct ecore_hwfn *p_hwfn);
+void ecore_l2_free(struct ecore_hwfn *p_hwfn);
+
 void ecore_eth_queue_cid_release(struct ecore_hwfn *p_hwfn,
                                 struct ecore_queue_cid *p_cid);
 
 struct ecore_queue_cid *
-_ecore_eth_queue_to_cid(struct ecore_hwfn *p_hwfn,
-                       u16 opaque_fid, u32 cid, u8 vf_qid,
-                       struct ecore_queue_start_common_params *p_params);
+ecore_eth_queue_to_cid(struct ecore_hwfn *p_hwfn, u16 opaque_fid,
+                      struct ecore_queue_start_common_params *p_params,
+                      struct ecore_queue_cid_vf_params *p_vf_params);
 
 enum _ecore_status_t
 ecore_sp_eth_vport_start(struct ecore_hwfn *p_hwfn,