octeontx2-af: NIX AQ instruction enqueue support

Add support for a RVU PF/VF to submit instructions to NIX AQ
via mbox. Instructions can be to init/write/read RQ/SQ/CQ/RSS
contexts. In case of read, context will be returned as part of
response to the mbox msg received.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/octeontx2/af/mbox.h

@@ -149,7 +149,8 @@ M(NPA_HWCTX_DISABLE,	0x403, hwctx_disable_req, msg_rsp)		\
 /* NPC mbox IDs (range 0x6000 - 0x7FFF) */				\
 /* NIX mbox IDs (range 0x8000 - 0xFFFF) */				\
 M(NIX_LF_ALLOC,		0x8000, nix_lf_alloc_req, nix_lf_alloc_rsp)	\
-M(NIX_LF_FREE,		0x8001, msg_req, msg_rsp)
+M(NIX_LF_FREE,		0x8001, msg_req, msg_rsp)			\
+M(NIX_AQ_ENQ,		0x8002, nix_aq_enq_req, nix_aq_enq_rsp)
 
 /* Messages initiated by AF (range 0xC00 - 0xDFF) */
 #define MBOX_UP_CGX_MESSAGES						\
@@ -379,4 +380,37 @@ struct nix_lf_alloc_rsp {
 	u8      mac_addr[ETH_ALEN];
 };
 
+/* NIX AQ enqueue msg */
+struct nix_aq_enq_req {
+	struct mbox_msghdr hdr;
+	u32  qidx;
+	u8 ctype;
+	u8 op;
+	union {
+		struct nix_rq_ctx_s rq;
+		struct nix_sq_ctx_s sq;
+		struct nix_cq_ctx_s cq;
+		struct nix_rsse_s   rss;
+		struct nix_rx_mce_s mce;
+	};
+	union {
+		struct nix_rq_ctx_s rq_mask;
+		struct nix_sq_ctx_s sq_mask;
+		struct nix_cq_ctx_s cq_mask;
+		struct nix_rsse_s   rss_mask;
+		struct nix_rx_mce_s mce_mask;
+	};
+};
+
+struct nix_aq_enq_rsp {
+	struct mbox_msghdr hdr;
+	union {
+		struct nix_rq_ctx_s rq;
+		struct nix_sq_ctx_s sq;
+		struct nix_cq_ctx_s cq;
+		struct nix_rsse_s   rss;
+		struct nix_rx_mce_s mce;
+	};
+};
+
 #endif /* MBOX_H */

drivers/net/ethernet/marvell/octeontx2/af/rvu.h

@@ -261,4 +261,7 @@ int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
 				  struct nix_lf_alloc_rsp *rsp);
 int rvu_mbox_handler_NIX_LF_FREE(struct rvu *rvu, struct msg_req *req,
 				 struct msg_rsp *rsp);
+int rvu_mbox_handler_NIX_AQ_ENQ(struct rvu *rvu,
+				struct nix_aq_enq_req *req,
+				struct nix_aq_enq_rsp *rsp);
 #endif /* RVU_H */

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

@@ -16,6 +16,38 @@
 #include "rvu.h"
 #include "cgx.h"
 
+static inline struct nix_hw *get_nix_hw(struct rvu_hwinfo *hw, int blkaddr)
+{
+	if (blkaddr == BLKADDR_NIX0 && hw->nix0)
+		return hw->nix0;
+
+	return NULL;
+}
+
+static bool is_valid_txschq(struct rvu *rvu, int blkaddr,
+			    int lvl, u16 pcifunc, u16 schq)
+{
+	struct nix_txsch *txsch;
+	struct nix_hw *nix_hw;
+
+	nix_hw = get_nix_hw(rvu->hw, blkaddr);
+	if (!nix_hw)
+		return false;
+
+	txsch = &nix_hw->txsch[lvl];
+	/* Check out of bounds */
+	if (schq >= txsch->schq.max)
+		return false;
+
+	spin_lock(&rvu->rsrc_lock);
+	if (txsch->pfvf_map[schq] != pcifunc) {
+		spin_unlock(&rvu->rsrc_lock);
+		return false;
+	}
+	spin_unlock(&rvu->rsrc_lock);
+	return true;
+}
+
 static void nix_setup_lso_tso_l3(struct rvu *rvu, int blkaddr,
 				 u64 format, bool v4, u64 *fidx)
 {
@@ -159,6 +191,198 @@ static int nixlf_rss_ctx_init(struct rvu *rvu, int blkaddr,
 	return 0;
 }
 
+static int nix_aq_enqueue_wait(struct rvu *rvu, struct rvu_block *block,
+			       struct nix_aq_inst_s *inst)
+{
+	struct admin_queue *aq = block->aq;
+	struct nix_aq_res_s *result;
+	int timeout = 1000;
+	u64 reg, head;
+
+	result = (struct nix_aq_res_s *)aq->res->base;
+
+	/* Get current head pointer where to append this instruction */
+	reg = rvu_read64(rvu, block->addr, NIX_AF_AQ_STATUS);
+	head = (reg >> 4) & AQ_PTR_MASK;
+
+	memcpy((void *)(aq->inst->base + (head * aq->inst->entry_sz)),
+	       (void *)inst, aq->inst->entry_sz);
+	memset(result, 0, sizeof(*result));
+	/* sync into memory */
+	wmb();
+
+	/* Ring the doorbell and wait for result */
+	rvu_write64(rvu, block->addr, NIX_AF_AQ_DOOR, 1);
+	while (result->compcode == NIX_AQ_COMP_NOTDONE) {
+		cpu_relax();
+		udelay(1);
+		timeout--;
+		if (!timeout)
+			return -EBUSY;
+	}
+
+	if (result->compcode != NIX_AQ_COMP_GOOD)
+		/* TODO: Replace this with some error code */
+		return -EBUSY;
+
+	return 0;
+}
+
+static int rvu_nix_aq_enq_inst(struct rvu *rvu, struct nix_aq_enq_req *req,
+			       struct nix_aq_enq_rsp *rsp)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	u16 pcifunc = req->hdr.pcifunc;
+	int nixlf, blkaddr, rc = 0;
+	struct nix_aq_inst_s inst;
+	struct rvu_block *block;
+	struct admin_queue *aq;
+	struct rvu_pfvf *pfvf;
+	void *ctx, *mask;
+	u64 cfg;
+
+	pfvf = rvu_get_pfvf(rvu, pcifunc);
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc);
+	if (!pfvf->nixlf || blkaddr < 0)
+		return NIX_AF_ERR_AF_LF_INVALID;
+
+	block = &hw->block[blkaddr];
+	aq = block->aq;
+	if (!aq) {
+		dev_warn(rvu->dev, "%s: NIX AQ not initialized\n", __func__);
+		return NIX_AF_ERR_AQ_ENQUEUE;
+	}
+
+	nixlf = rvu_get_lf(rvu, block, pcifunc, 0);
+	if (nixlf < 0)
+		return NIX_AF_ERR_AF_LF_INVALID;
+
+	switch (req->ctype) {
+	case NIX_AQ_CTYPE_RQ:
+		/* Check if index exceeds max no of queues */
+		if (!pfvf->rq_ctx || req->qidx >= pfvf->rq_ctx->qsize)
+			rc = NIX_AF_ERR_AQ_ENQUEUE;
+		break;
+	case NIX_AQ_CTYPE_SQ:
+		if (!pfvf->sq_ctx || req->qidx >= pfvf->sq_ctx->qsize)
+			rc = NIX_AF_ERR_AQ_ENQUEUE;
+		break;
+	case NIX_AQ_CTYPE_CQ:
+		if (!pfvf->cq_ctx || req->qidx >= pfvf->cq_ctx->qsize)
+			rc = NIX_AF_ERR_AQ_ENQUEUE;
+		break;
+	case NIX_AQ_CTYPE_RSS:
+		/* Check if RSS is enabled and qidx is within range */
+		cfg = rvu_read64(rvu, blkaddr, NIX_AF_LFX_RSS_CFG(nixlf));
+		if (!(cfg & BIT_ULL(4)) || !pfvf->rss_ctx ||
+		    (req->qidx >= (256UL << (cfg & 0xF))))
+			rc = NIX_AF_ERR_AQ_ENQUEUE;
+		break;
+	default:
+		rc = NIX_AF_ERR_AQ_ENQUEUE;
+	}
+
+	if (rc)
+		return rc;
+
+	/* Check if SQ pointed SMQ belongs to this PF/VF or not */
+	if (req->ctype == NIX_AQ_CTYPE_SQ &&
+	    req->op != NIX_AQ_INSTOP_WRITE) {
+		if (!is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_SMQ,
+				     pcifunc, req->sq.smq))
+			return NIX_AF_ERR_AQ_ENQUEUE;
+	}
+
+	memset(&inst, 0, sizeof(struct nix_aq_inst_s));
+	inst.lf = nixlf;
+	inst.cindex = req->qidx;
+	inst.ctype = req->ctype;
+	inst.op = req->op;
+	/* Currently we are not supporting enqueuing multiple instructions,
+	 * so always choose first entry in result memory.
+	 */
+	inst.res_addr = (u64)aq->res->iova;
+
+	/* Clean result + context memory */
+	memset(aq->res->base, 0, aq->res->entry_sz);
+	/* Context needs to be written at RES_ADDR + 128 */
+	ctx = aq->res->base + 128;
+	/* Mask needs to be written at RES_ADDR + 256 */
+	mask = aq->res->base + 256;
+
+	switch (req->op) {
+	case NIX_AQ_INSTOP_WRITE:
+		if (req->ctype == NIX_AQ_CTYPE_RQ)
+			memcpy(mask, &req->rq_mask,
+			       sizeof(struct nix_rq_ctx_s));
+		else if (req->ctype == NIX_AQ_CTYPE_SQ)
+			memcpy(mask, &req->sq_mask,
+			       sizeof(struct nix_sq_ctx_s));
+		else if (req->ctype == NIX_AQ_CTYPE_CQ)
+			memcpy(mask, &req->cq_mask,
+			       sizeof(struct nix_cq_ctx_s));
+		else if (req->ctype == NIX_AQ_CTYPE_RSS)
+			memcpy(mask, &req->rss_mask,
+			       sizeof(struct nix_rsse_s));
+		/* Fall through */
+	case NIX_AQ_INSTOP_INIT:
+		if (req->ctype == NIX_AQ_CTYPE_RQ)
+			memcpy(ctx, &req->rq, sizeof(struct nix_rq_ctx_s));
+		else if (req->ctype == NIX_AQ_CTYPE_SQ)
+			memcpy(ctx, &req->sq, sizeof(struct nix_sq_ctx_s));
+		else if (req->ctype == NIX_AQ_CTYPE_CQ)
+			memcpy(ctx, &req->cq, sizeof(struct nix_cq_ctx_s));
+		else if (req->ctype == NIX_AQ_CTYPE_RSS)
+			memcpy(ctx, &req->rss, sizeof(struct nix_rsse_s));
+		break;
+	case NIX_AQ_INSTOP_NOP:
+	case NIX_AQ_INSTOP_READ:
+	case NIX_AQ_INSTOP_LOCK:
+	case NIX_AQ_INSTOP_UNLOCK:
+		break;
+	default:
+		rc = NIX_AF_ERR_AQ_ENQUEUE;
+		return rc;
+	}
+
+	spin_lock(&aq->lock);
+
+	/* Submit the instruction to AQ */
+	rc = nix_aq_enqueue_wait(rvu, block, &inst);
+	if (rc) {
+		spin_unlock(&aq->lock);
+		return rc;
+	}
+
+	if (rsp) {
+		/* Copy read context into mailbox */
+		if (req->op == NIX_AQ_INSTOP_READ && !rc) {
+			if (req->ctype == NIX_AQ_CTYPE_RQ)
+				memcpy(&rsp->rq, ctx,
+				       sizeof(struct nix_rq_ctx_s));
+			else if (req->ctype == NIX_AQ_CTYPE_SQ)
+				memcpy(&rsp->sq, ctx,
+				       sizeof(struct nix_sq_ctx_s));
+			else if (req->ctype == NIX_AQ_CTYPE_CQ)
+				memcpy(&rsp->cq, ctx,
+				       sizeof(struct nix_cq_ctx_s));
+			else if (req->ctype == NIX_AQ_CTYPE_RSS)
+				memcpy(&rsp->rss, ctx,
+				       sizeof(struct nix_cq_ctx_s));
+		}
+	}
+
+	spin_unlock(&aq->lock);
+	return rc;
+}
+
+int rvu_mbox_handler_NIX_AQ_ENQ(struct rvu *rvu,
+				struct nix_aq_enq_req *req,
+				struct nix_aq_enq_rsp *rsp)
+{
+	return rvu_nix_aq_enq_inst(rvu, req, rsp);
+}
+
 int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
 				  struct nix_lf_alloc_req *req,
 				  struct nix_lf_alloc_rsp *rsp)
@@ -346,14 +570,6 @@ int rvu_mbox_handler_NIX_LF_FREE(struct rvu *rvu, struct msg_req *req,
 	return 0;
 }
 
-static inline struct nix_hw *get_nix_hw(struct rvu_hwinfo *hw, int blkaddr)
-{
-	if (blkaddr == BLKADDR_NIX0 && hw->nix0)
-		return hw->nix0;
-
-	return NULL;
-}
-
 static int nix_setup_txschq(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr)
 {
 	struct nix_txsch *txsch;

drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h

@@ -426,6 +426,424 @@ struct nix_aq_res_s {
 	u64 reserved_64_127;		/* W1 */
 };
 
+/* NIX Completion queue context structure */
+struct nix_cq_ctx_s {
+	u64 base;
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W1 */
+	u64 wrptr		: 20;
+	u64 avg_con		: 9;
+	u64 cint_idx		: 7;
+	u64 cq_err		: 1;
+	u64 qint_idx		: 7;
+	u64 rsvd_81_83		: 3;
+	u64 bpid		: 9;
+	u64 rsvd_69_71		: 3;
+	u64 bp_ena		: 1;
+	u64 rsvd_64_67		: 4;
+#else
+	u64 rsvd_64_67		: 4;
+	u64 bp_ena		: 1;
+	u64 rsvd_69_71		: 3;
+	u64 bpid		: 9;
+	u64 rsvd_81_83		: 3;
+	u64 qint_idx		: 7;
+	u64 cq_err		: 1;
+	u64 cint_idx		: 7;
+	u64 avg_con		: 9;
+	u64 wrptr		: 20;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W2 */
+	u64 update_time		: 16;
+	u64 avg_level		: 8;
+	u64 head		: 20;
+	u64 tail		: 20;
+#else
+	u64 tail		: 20;
+	u64 head		: 20;
+	u64 avg_level		: 8;
+	u64 update_time		: 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W3 */
+	u64 cq_err_int_ena	: 8;
+	u64 cq_err_int		: 8;
+	u64 qsize		: 4;
+	u64 rsvd_233_235	: 3;
+	u64 caching		: 1;
+	u64 substream		: 20;
+	u64 rsvd_210_211	: 2;
+	u64 ena			: 1;
+	u64 drop_ena		: 1;
+	u64 drop		: 8;
+	u64 dp			: 8;
+#else
+	u64 dp			: 8;
+	u64 drop		: 8;
+	u64 drop_ena		: 1;
+	u64 ena			: 1;
+	u64 rsvd_210_211	: 2;
+	u64 substream		: 20;
+	u64 caching		: 1;
+	u64 rsvd_233_235	: 3;
+	u64 qsize		: 4;
+	u64 cq_err_int		: 8;
+	u64 cq_err_int_ena	: 8;
+#endif
+};
+
+/* NIX Receive queue context structure */
+struct nix_rq_ctx_s {
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W0 */
+	u64 wqe_aura      : 20;
+	u64 substream     : 20;
+	u64 cq            : 20;
+	u64 ena_wqwd      : 1;
+	u64 ipsech_ena    : 1;
+	u64 sso_ena       : 1;
+	u64 ena           : 1;
+#else
+	u64 ena           : 1;
+	u64 sso_ena       : 1;
+	u64 ipsech_ena    : 1;
+	u64 ena_wqwd      : 1;
+	u64 cq            : 20;
+	u64 substream     : 20;
+	u64 wqe_aura      : 20;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W1 */
+	u64 rsvd_127_122  : 6;
+	u64 lpb_drop_ena  : 1;
+	u64 spb_drop_ena  : 1;
+	u64 xqe_drop_ena  : 1;
+	u64 wqe_caching   : 1;
+	u64 pb_caching    : 2;
+	u64 sso_tt        : 2;
+	u64 sso_grp       : 10;
+	u64 lpb_aura      : 20;
+	u64 spb_aura      : 20;
+#else
+	u64 spb_aura      : 20;
+	u64 lpb_aura      : 20;
+	u64 sso_grp       : 10;
+	u64 sso_tt        : 2;
+	u64 pb_caching    : 2;
+	u64 wqe_caching   : 1;
+	u64 xqe_drop_ena  : 1;
+	u64 spb_drop_ena  : 1;
+	u64 lpb_drop_ena  : 1;
+	u64 rsvd_127_122  : 6;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W2 */
+	u64 xqe_hdr_split : 1;
+	u64 xqe_imm_copy  : 1;
+	u64 rsvd_189_184  : 6;
+	u64 xqe_imm_size  : 6;
+	u64 later_skip    : 6;
+	u64 rsvd_171      : 1;
+	u64 first_skip    : 7;
+	u64 lpb_sizem1    : 12;
+	u64 spb_ena       : 1;
+	u64 rsvd_150_148  : 3;
+	u64 wqe_skip      : 2;
+	u64 spb_sizem1    : 6;
+	u64 rsvd_139_128  : 12;
+#else
+	u64 rsvd_139_128  : 12;
+	u64 spb_sizem1    : 6;
+	u64 wqe_skip      : 2;
+	u64 rsvd_150_148  : 3;
+	u64 spb_ena       : 1;
+	u64 lpb_sizem1    : 12;
+	u64 first_skip    : 7;
+	u64 rsvd_171      : 1;
+	u64 later_skip    : 6;
+	u64 xqe_imm_size  : 6;
+	u64 rsvd_189_184  : 6;
+	u64 xqe_imm_copy  : 1;
+	u64 xqe_hdr_split : 1;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W3 */
+	u64 spb_pool_pass : 8;
+	u64 spb_pool_drop : 8;
+	u64 spb_aura_pass : 8;
+	u64 spb_aura_drop : 8;
+	u64 wqe_pool_pass : 8;
+	u64 wqe_pool_drop : 8;
+	u64 xqe_pass      : 8;
+	u64 xqe_drop      : 8;
+#else
+	u64 xqe_drop      : 8;
+	u64 xqe_pass      : 8;
+	u64 wqe_pool_drop : 8;
+	u64 wqe_pool_pass : 8;
+	u64 spb_aura_drop : 8;
+	u64 spb_aura_pass : 8;
+	u64 spb_pool_drop : 8;
+	u64 spb_pool_pass : 8;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W4 */
+	u64 rsvd_319_315  : 5;
+	u64 qint_idx      : 7;
+	u64 rq_int_ena    : 8;
+	u64 rq_int        : 8;
+	u64 rsvd_291_288  : 4;
+	u64 lpb_pool_pass : 8;
+	u64 lpb_pool_drop : 8;
+	u64 lpb_aura_pass : 8;
+	u64 lpb_aura_drop : 8;
+#else
+	u64 lpb_aura_drop : 8;
+	u64 lpb_aura_pass : 8;
+	u64 lpb_pool_drop : 8;
+	u64 lpb_pool_pass : 8;
+	u64 rsvd_291_288  : 4;
+	u64 rq_int        : 8;
+	u64 rq_int_ena    : 8;
+	u64 qint_idx      : 7;
+	u64 rsvd_319_315  : 5;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W5 */
+	u64 rsvd_383_366  : 18;
+	u64 flow_tagw     : 6;
+	u64 bad_utag      : 8;
+	u64 good_utag     : 8;
+	u64 ltag          : 24;
+#else
+	u64 ltag          : 24;
+	u64 good_utag     : 8;
+	u64 bad_utag      : 8;
+	u64 flow_tagw     : 6;
+	u64 rsvd_383_366  : 18;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W6 */
+	u64 rsvd_447_432  : 16;
+	u64 octs          : 48;
+#else
+	u64 octs          : 48;
+	u64 rsvd_447_432  : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W7 */
+	u64 rsvd_511_496  : 16;
+	u64 pkts          : 48;
+#else
+	u64 pkts          : 48;
+	u64 rsvd_511_496  : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W8 */
+	u64 rsvd_575_560  : 16;
+	u64 drop_octs     : 48;
+#else
+	u64 drop_octs     : 48;
+	u64 rsvd_575_560  : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W9 */
+	u64 rsvd_639_624  : 16;
+	u64 drop_pkts     : 48;
+#else
+	u64 drop_pkts     : 48;
+	u64 rsvd_639_624  : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W10 */
+	u64 rsvd_703_688  : 16;
+	u64 re_pkts       : 48;
+#else
+	u64 re_pkts       : 48;
+	u64 rsvd_703_688  : 16;
+#endif
+	u64 rsvd_767_704;		/* W11 */
+	u64 rsvd_831_768;		/* W12 */
+	u64 rsvd_895_832;		/* W13 */
+	u64 rsvd_959_896;		/* W14 */
+	u64 rsvd_1023_960;		/* W15 */
+};
+
+/* NIX sqe sizes */
+enum nix_maxsqesz {
+	NIX_MAXSQESZ_W16 = 0x0,
+	NIX_MAXSQESZ_W8  = 0x1,
+};
+
+/* NIX SQB caching type */
+enum nix_stype {
+	NIX_STYPE_STF = 0x0,
+	NIX_STYPE_STT = 0x1,
+	NIX_STYPE_STP = 0x2,
+};
+
+/* NIX Send queue context structure */
+struct nix_sq_ctx_s {
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W0 */
+	u64 sqe_way_mask          : 16;
+	u64 cq                    : 20;
+	u64 sdp_mcast             : 1;
+	u64 substream             : 20;
+	u64 qint_idx              : 6;
+	u64 ena                   : 1;
+#else
+	u64 ena                   : 1;
+	u64 qint_idx              : 6;
+	u64 substream             : 20;
+	u64 sdp_mcast             : 1;
+	u64 cq                    : 20;
+	u64 sqe_way_mask          : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W1 */
+	u64 sqb_count             : 16;
+	u64 default_chan          : 12;
+	u64 smq_rr_quantum        : 24;
+	u64 sso_ena               : 1;
+	u64 xoff                  : 1;
+	u64 cq_ena                : 1;
+	u64 smq                   : 9;
+#else
+	u64 smq                   : 9;
+	u64 cq_ena                : 1;
+	u64 xoff                  : 1;
+	u64 sso_ena               : 1;
+	u64 smq_rr_quantum        : 24;
+	u64 default_chan          : 12;
+	u64 sqb_count             : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W2 */
+	u64 rsvd_191              : 1;
+	u64 sqe_stype             : 2;
+	u64 sq_int_ena            : 8;
+	u64 sq_int                : 8;
+	u64 sqb_aura              : 20;
+	u64 smq_rr_count          : 25;
+#else
+	u64 smq_rr_count          : 25;
+	u64 sqb_aura              : 20;
+	u64 sq_int                : 8;
+	u64 sq_int_ena            : 8;
+	u64 sqe_stype             : 2;
+	u64 rsvd_191              : 1;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W3 */
+	u64 rsvd_255_253          : 3;
+	u64 smq_next_sq_vld       : 1;
+	u64 smq_pend              : 1;
+	u64 smenq_next_sqb_vld    : 1;
+	u64 head_offset           : 6;
+	u64 smenq_offset          : 6;
+	u64 tail_offset           : 6;
+	u64 smq_lso_segnum        : 8;
+	u64 smq_next_sq           : 20;
+	u64 mnq_dis               : 1;
+	u64 lmt_dis               : 1;
+	u64 cq_limit              : 8;
+	u64 max_sqe_size          : 2;
+#else
+	u64 max_sqe_size          : 2;
+	u64 cq_limit              : 8;
+	u64 lmt_dis               : 1;
+	u64 mnq_dis               : 1;
+	u64 smq_next_sq           : 20;
+	u64 smq_lso_segnum        : 8;
+	u64 tail_offset           : 6;
+	u64 smenq_offset          : 6;
+	u64 head_offset           : 6;
+	u64 smenq_next_sqb_vld    : 1;
+	u64 smq_pend              : 1;
+	u64 smq_next_sq_vld       : 1;
+	u64 rsvd_255_253          : 3;
+#endif
+	u64 next_sqb              : 64;/* W4 */
+	u64 tail_sqb              : 64;/* W5 */
+	u64 smenq_sqb             : 64;/* W6 */
+	u64 smenq_next_sqb        : 64;/* W7 */
+	u64 head_sqb              : 64;/* W8 */
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W9 */
+	u64 rsvd_639_630          : 10;
+	u64 vfi_lso_vld           : 1;
+	u64 vfi_lso_vlan1_ins_ena : 1;
+	u64 vfi_lso_vlan0_ins_ena : 1;
+	u64 vfi_lso_mps           : 14;
+	u64 vfi_lso_sb            : 8;
+	u64 vfi_lso_sizem1        : 3;
+	u64 vfi_lso_total         : 18;
+	u64 rsvd_583_576          : 8;
+#else
+	u64 rsvd_583_576          : 8;
+	u64 vfi_lso_total         : 18;
+	u64 vfi_lso_sizem1        : 3;
+	u64 vfi_lso_sb            : 8;
+	u64 vfi_lso_mps           : 14;
+	u64 vfi_lso_vlan0_ins_ena : 1;
+	u64 vfi_lso_vlan1_ins_ena : 1;
+	u64 vfi_lso_vld           : 1;
+	u64 rsvd_639_630          : 10;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD) /* W10 */
+	u64 rsvd_703_658          : 46;
+	u64 scm_lso_rem           : 18;
+#else
+	u64 scm_lso_rem           : 18;
+	u64 rsvd_703_658          : 46;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD) /* W11 */
+	u64 rsvd_767_752          : 16;
+	u64 octs                  : 48;
+#else
+	u64 octs                  : 48;
+	u64 rsvd_767_752          : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD) /* W12 */
+	u64 rsvd_831_816          : 16;
+	u64 pkts                  : 48;
+#else
+	u64 pkts                  : 48;
+	u64 rsvd_831_816          : 16;
+#endif
+	u64 rsvd_895_832          : 64;/* W13 */
+#if defined(__BIG_ENDIAN_BITFIELD) /* W14 */
+	u64 rsvd_959_944          : 16;
+	u64 dropped_octs          : 48;
+#else
+	u64 dropped_octs          : 48;
+	u64 rsvd_959_944          : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD) /* W15 */
+	u64 rsvd_1023_1008        : 16;
+	u64 dropped_pkts          : 48;
+#else
+	u64 dropped_pkts          : 48;
+	u64 rsvd_1023_1008        : 16;
+#endif
+};
+
+/* NIX Receive side scaling entry structure*/
+struct nix_rsse_s {
+#if defined(__BIG_ENDIAN_BITFIELD)
+	uint32_t reserved_20_31		: 12;
+	uint32_t rq			: 20;
+#else
+	uint32_t rq			: 20;
+	uint32_t reserved_20_31		: 12;
+
+#endif
+};
+
+/* NIX receive multicast/mirror entry structure */
+struct nix_rx_mce_s {
+#if defined(__BIG_ENDIAN_BITFIELD)  /* W0 */
+	uint64_t next       : 16;
+	uint64_t pf_func    : 16;
+	uint64_t rsvd_31_24 : 8;
+	uint64_t index      : 20;
+	uint64_t eol        : 1;
+	uint64_t rsvd_2     : 1;
+	uint64_t op         : 2;
+#else
+	uint64_t op         : 2;
+	uint64_t rsvd_2     : 1;
+	uint64_t eol        : 1;
+	uint64_t index      : 20;
+	uint64_t rsvd_31_24 : 8;
+	uint64_t pf_func    : 16;
+	uint64_t next       : 16;
+#endif
+};
+
 enum nix_lsoalg {
 	NIX_LSOALG_NOP,
 	NIX_LSOALG_ADD_SEGNUM,