1 files changed, 168 insertions, 69 deletions

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index e6869435e1f3..cf7875d51d87 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -15,6 +15,7 @@
 #include "otx2_reg.h"
 #include "otx2_common.h"
 #include "otx2_struct.h"
+#include "cn10k.h"
 
 static void otx2_nix_rq_op_stats(struct queue_stats *stats,
 				 struct otx2_nic *pfvf, int qidx)
@@ -60,6 +61,19 @@ void otx2_update_lmac_stats(struct otx2_nic *pfvf)
 	mutex_unlock(&pfvf->mbox.lock);
 }
 
+void otx2_update_lmac_fec_stats(struct otx2_nic *pfvf)
+{
+	struct msg_req *req;
+
+	if (!netif_running(pfvf->netdev))
+		return;
+	mutex_lock(&pfvf->mbox.lock);
+	req = otx2_mbox_alloc_msg_cgx_fec_stats(&pfvf->mbox);
+	if (req)
+		otx2_sync_mbox_msg(&pfvf->mbox);
+	mutex_unlock(&pfvf->mbox.lock);
+}
+
 int otx2_update_rq_stats(struct otx2_nic *pfvf, int qidx)
 {
 	struct otx2_rcv_queue *rq = &pfvf->qset.rq[qidx];
@@ -216,7 +230,6 @@ int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu)
 		return -ENOMEM;
 	}
 
-	pfvf->max_frs = mtu +  OTX2_ETH_HLEN;
 	req->maxlen = pfvf->max_frs;
 
 	err = otx2_sync_mbox_msg(&pfvf->mbox);
@@ -270,14 +283,17 @@ int otx2_set_flowkey_cfg(struct otx2_nic *pfvf)
 	return err;
 }
 
-int otx2_set_rss_table(struct otx2_nic *pfvf)
+int otx2_set_rss_table(struct otx2_nic *pfvf, int ctx_id)
 {
 	struct otx2_rss_info *rss = &pfvf->hw.rss_info;
+	const int index = rss->rss_size * ctx_id;
 	struct mbox *mbox = &pfvf->mbox;
+	struct otx2_rss_ctx *rss_ctx;
 	struct nix_aq_enq_req *aq;
 	int idx, err;
 
 	mutex_lock(&mbox->lock);
+	rss_ctx = rss->rss_ctx[ctx_id];
 	/* Get memory to put this msg */
 	for (idx = 0; idx < rss->rss_size; idx++) {
 		aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
@@ -297,10 +313,10 @@ int otx2_set_rss_table(struct otx2_nic *pfvf)
 			}
 		}
 
-		aq->rss.rq = rss->ind_tbl[idx];
+		aq->rss.rq = rss_ctx->ind_tbl[idx];
 
 		/* Fill AQ info */
-		aq->qidx = idx;
+		aq->qidx = index + idx;
 		aq->ctype = NIX_AQ_CTYPE_RSS;
 		aq->op = NIX_AQ_INSTOP_INIT;
 	}
@@ -335,9 +351,10 @@ void otx2_set_rss_key(struct otx2_nic *pfvf)
 int otx2_rss_init(struct otx2_nic *pfvf)
 {
 	struct otx2_rss_info *rss = &pfvf->hw.rss_info;
+	struct otx2_rss_ctx *rss_ctx;
 	int idx, ret = 0;
 
-	rss->rss_size = sizeof(rss->ind_tbl);
+	rss->rss_size = sizeof(*rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP]);
 
 	/* Init RSS key if it is not setup already */
 	if (!rss->enable)
@@ -345,13 +362,19 @@ int otx2_rss_init(struct otx2_nic *pfvf)
 	otx2_set_rss_key(pfvf);
 
 	if (!netif_is_rxfh_configured(pfvf->netdev)) {
-		/* Default indirection table */
+		/* Set RSS group 0 as default indirection table */
+		rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP] = kzalloc(rss->rss_size,
+								  GFP_KERNEL);
+		if (!rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP])
+			return -ENOMEM;
+
+		rss_ctx = rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP];
 		for (idx = 0; idx < rss->rss_size; idx++)
-			rss->ind_tbl[idx] =
+			rss_ctx->ind_tbl[idx] =
 				ethtool_rxfh_indir_default(idx,
 							   pfvf->hw.rx_queues);
 	}
-	ret = otx2_set_rss_table(pfvf);
+	ret = otx2_set_rss_table(pfvf, DEFAULT_RSS_CONTEXT_GROUP);
 	if (ret)
 		return ret;
 
@@ -473,34 +496,54 @@ void otx2_config_irq_coalescing(struct otx2_nic *pfvf, int qidx)
 		     (pfvf->hw.cq_ecount_wait - 1));
 }
 
-dma_addr_t __otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool)
+int __otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool,
+		      dma_addr_t *dma)
 {
-	dma_addr_t iova;
 	u8 *buf;
 
-	buf = napi_alloc_frag(pool->rbsize + OTX2_ALIGN);
+	buf = napi_alloc_frag_align(pool->rbsize, OTX2_ALIGN);
 	if (unlikely(!buf))
 		return -ENOMEM;
 
-	buf = PTR_ALIGN(buf, OTX2_ALIGN);
-	iova = dma_map_single_attrs(pfvf->dev, buf, pool->rbsize,
+	*dma = dma_map_single_attrs(pfvf->dev, buf, pool->rbsize,
 				    DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC);
-	if (unlikely(dma_mapping_error(pfvf->dev, iova))) {
+	if (unlikely(dma_mapping_error(pfvf->dev, *dma))) {
 		page_frag_free(buf);
 		return -ENOMEM;
 	}
 
-	return iova;
+	return 0;
 }
 
-static dma_addr_t otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool)
+static int otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool,
+			   dma_addr_t *dma)
 {
-	dma_addr_t addr;
+	int ret;
 
 	local_bh_disable();
-	addr = __otx2_alloc_rbuf(pfvf, pool);
+	ret = __otx2_alloc_rbuf(pfvf, pool, dma);
 	local_bh_enable();
-	return addr;
+	return ret;
+}
+
+int otx2_alloc_buffer(struct otx2_nic *pfvf, struct otx2_cq_queue *cq,
+		      dma_addr_t *dma)
+{
+	if (unlikely(__otx2_alloc_rbuf(pfvf, cq->rbpool, dma))) {
+		struct refill_work *work;
+		struct delayed_work *dwork;
+
+		work = &pfvf->refill_wrk[cq->cq_idx];
+		dwork = &work->pool_refill_work;
+		/* Schedule a task if no other task is running */
+		if (!cq->refill_task_sched) {
+			cq->refill_task_sched = true;
+			schedule_delayed_work(dwork,
+					      msecs_to_jiffies(100));
+		}
+		return -ENOMEM;
+	}
+	return 0;
 }
 
 void otx2_tx_timeout(struct net_device *netdev, unsigned int txq)
@@ -562,8 +605,8 @@ int otx2_txschq_config(struct otx2_nic *pfvf, int lvl)
 	/* Set topology e.t.c configuration */
 	if (lvl == NIX_TXSCH_LVL_SMQ) {
 		req->reg[0] = NIX_AF_SMQX_CFG(schq);
-		req->regval[0] = ((OTX2_MAX_MTU + OTX2_ETH_HLEN) << 8) |
-				   OTX2_MIN_MTU;
+		req->regval[0] = ((pfvf->netdev->max_mtu + OTX2_ETH_HLEN) << 8)
+				  | OTX2_MIN_MTU;
 
 		req->regval[0] |= (0x20ULL << 51) | (0x80ULL << 39) |
 				  (0x2ULL << 36);
@@ -705,9 +748,6 @@ void otx2_sqb_flush(struct otx2_nic *pfvf)
 #define RQ_PASS_LVL_AURA (255 - ((95 * 256) / 100)) /* RED when 95% is full */
 #define RQ_DROP_LVL_AURA (255 - ((99 * 256) / 100)) /* Drop when 99% is full */
 
-/* Send skid of 2000 packets required for CQ size of 4K CQEs. */
-#define SEND_CQ_SKID	2000
-
 static int otx2_rq_init(struct otx2_nic *pfvf, u16 qidx, u16 lpb_aura)
 {
 	struct otx2_qset *qset = &pfvf->qset;
@@ -741,11 +781,48 @@ static int otx2_rq_init(struct otx2_nic *pfvf, u16 qidx, u16 lpb_aura)
 	return otx2_sync_mbox_msg(&pfvf->mbox);
 }
 
+int otx2_sq_aq_init(void *dev, u16 qidx, u16 sqb_aura)
+{
+	struct otx2_nic *pfvf = dev;
+	struct otx2_snd_queue *sq;
+	struct nix_aq_enq_req *aq;
+
+	sq = &pfvf->qset.sq[qidx];
+	sq->lmt_addr = (__force u64 *)(pfvf->reg_base + LMT_LF_LMTLINEX(qidx));
+	/* Get memory to put this msg */
+	aq = otx2_mbox_alloc_msg_nix_aq_enq(&pfvf->mbox);
+	if (!aq)
+		return -ENOMEM;
+
+	aq->sq.cq = pfvf->hw.rx_queues + qidx;
+	aq->sq.max_sqe_size = NIX_MAXSQESZ_W16; /* 128 byte */
+	aq->sq.cq_ena = 1;
+	aq->sq.ena = 1;
+	/* Only one SMQ is allocated, map all SQ's to that SMQ  */
+	aq->sq.smq = pfvf->hw.txschq_list[NIX_TXSCH_LVL_SMQ][0];
+	aq->sq.smq_rr_quantum = DFLT_RR_QTM;
+	aq->sq.default_chan = pfvf->hw.tx_chan_base;
+	aq->sq.sqe_stype = NIX_STYPE_STF; /* Cache SQB */
+	aq->sq.sqb_aura = sqb_aura;
+	aq->sq.sq_int_ena = NIX_SQINT_BITS;
+	aq->sq.qint_idx = 0;
+	/* Due pipelining impact minimum 2000 unused SQ CQE's
+	 * need to maintain to avoid CQ overflow.
+	 */
+	aq->sq.cq_limit = ((SEND_CQ_SKID * 256) / (pfvf->qset.sqe_cnt));
+
+	/* Fill AQ info */
+	aq->qidx = qidx;
+	aq->ctype = NIX_AQ_CTYPE_SQ;
+	aq->op = NIX_AQ_INSTOP_INIT;
+
+	return otx2_sync_mbox_msg(&pfvf->mbox);
+}
+
 static int otx2_sq_init(struct otx2_nic *pfvf, u16 qidx, u16 sqb_aura)
 {
 	struct otx2_qset *qset = &pfvf->qset;
 	struct otx2_snd_queue *sq;
-	struct nix_aq_enq_req *aq;
 	struct otx2_pool *pool;
 	int err;
 
@@ -782,40 +859,13 @@ static int otx2_sq_init(struct otx2_nic *pfvf, u16 qidx, u16 sqb_aura)
 	sq->sqe_thresh = ((sq->num_sqbs * sq->sqe_per_sqb) * 10) / 100;
 	sq->aura_id = sqb_aura;
 	sq->aura_fc_addr = pool->fc_addr->base;
-	sq->lmt_addr = (__force u64 *)(pfvf->reg_base + LMT_LF_LMTLINEX(qidx));
 	sq->io_addr = (__force u64)otx2_get_regaddr(pfvf, NIX_LF_OP_SENDX(0));
 
 	sq->stats.bytes = 0;
 	sq->stats.pkts = 0;
 
-	/* Get memory to put this msg */
-	aq = otx2_mbox_alloc_msg_nix_aq_enq(&pfvf->mbox);
-	if (!aq)
-		return -ENOMEM;
-
-	aq->sq.cq = pfvf->hw.rx_queues + qidx;
-	aq->sq.max_sqe_size = NIX_MAXSQESZ_W16; /* 128 byte */
-	aq->sq.cq_ena = 1;
-	aq->sq.ena = 1;
-	/* Only one SMQ is allocated, map all SQ's to that SMQ  */
-	aq->sq.smq = pfvf->hw.txschq_list[NIX_TXSCH_LVL_SMQ][0];
-	aq->sq.smq_rr_quantum = DFLT_RR_QTM;
-	aq->sq.default_chan = pfvf->hw.tx_chan_base;
-	aq->sq.sqe_stype = NIX_STYPE_STF; /* Cache SQB */
-	aq->sq.sqb_aura = sqb_aura;
-	aq->sq.sq_int_ena = NIX_SQINT_BITS;
-	aq->sq.qint_idx = 0;
-	/* Due pipelining impact minimum 2000 unused SQ CQE's
-	 * need to maintain to avoid CQ overflow.
-	 */
-	aq->sq.cq_limit = ((SEND_CQ_SKID * 256) / (sq->sqe_cnt));
-
-	/* Fill AQ info */
-	aq->qidx = qidx;
-	aq->ctype = NIX_AQ_CTYPE_SQ;
-	aq->op = NIX_AQ_INSTOP_INIT;
+	return pfvf->hw_ops->sq_aq_init(pfvf, qidx, sqb_aura);
 
-	return otx2_sync_mbox_msg(&pfvf->mbox);
 }
 
 static int otx2_cq_init(struct otx2_nic *pfvf, u16 qidx)
@@ -894,7 +944,7 @@ static void otx2_pool_refill_task(struct work_struct *work)
 	struct refill_work *wrk;
 	int qidx, free_ptrs = 0;
 	struct otx2_nic *pfvf;
-	s64 bufptr;
+	dma_addr_t bufptr;
 
 	wrk = container_of(work, struct refill_work, pool_refill_work.work);
 	pfvf = wrk->pf;
@@ -904,8 +954,7 @@ static void otx2_pool_refill_task(struct work_struct *work)
 	free_ptrs = cq->pool_ptrs;
 
 	while (cq->pool_ptrs) {
-		bufptr = otx2_alloc_rbuf(pfvf, rbpool);
-		if (bufptr <= 0) {
+		if (otx2_alloc_rbuf(pfvf, rbpool, &bufptr)) {
 			/* Schedule a WQ if we fails to free atleast half of the
 			 * pointers else enable napi for this RQ.
 			 */
@@ -920,7 +969,7 @@ static void otx2_pool_refill_task(struct work_struct *work)
 			}
 			return;
 		}
-		otx2_aura_freeptr(pfvf, qidx, bufptr + OTX2_HEAD_ROOM);
+		pfvf->hw_ops->aura_freeptr(pfvf, qidx, bufptr + OTX2_HEAD_ROOM);
 		cq->pool_ptrs--;
 	}
 	cq->refill_task_sched = false;
@@ -987,7 +1036,7 @@ int otx2_config_nix(struct otx2_nic *pfvf)
 	nixlf->sq_cnt = pfvf->hw.tx_queues;
 	nixlf->cq_cnt = pfvf->qset.cq_cnt;
 	nixlf->rss_sz = MAX_RSS_INDIR_TBL_SIZE;
-	nixlf->rss_grps = 1; /* Single RSS indir table supported, for now */
+	nixlf->rss_grps = MAX_RSS_GROUPS;
 	nixlf->xqe_sz = NIX_XQESZ_W16;
 	/* We don't know absolute NPA LF idx attached.
 	 * AF will replace 'RVU_DEFAULT_PF_FUNC' with
@@ -1164,6 +1213,11 @@ static int otx2_pool_init(struct otx2_nic *pfvf, u16 pool_id,
 
 	pool->rbsize = buf_size;
 
+	/* Set LMTST addr for NPA batch free */
+	if (test_bit(CN10K_LMTST, &pfvf->hw.cap_flag))
+		pool->lmt_addr = (__force u64 *)((u64)pfvf->hw.npa_lmt_base +
+						 (pool_id * LMT_LINE_SIZE));
+
 	/* Initialize this pool's context via AF */
 	aq = otx2_mbox_alloc_msg_npa_aq_enq(&pfvf->mbox);
 	if (!aq) {
@@ -1204,8 +1258,8 @@ int otx2_sq_aura_pool_init(struct otx2_nic *pfvf)
 	struct otx2_hw *hw = &pfvf->hw;
 	struct otx2_snd_queue *sq;
 	struct otx2_pool *pool;
+	dma_addr_t bufptr;
 	int err, ptr;
-	s64 bufptr;
 
 	/* Calculate number of SQBs needed.
 	 *
@@ -1250,10 +1304,9 @@ int otx2_sq_aura_pool_init(struct otx2_nic *pfvf)
 			return -ENOMEM;
 
 		for (ptr = 0; ptr < num_sqbs; ptr++) {
-			bufptr = otx2_alloc_rbuf(pfvf, pool);
-			if (bufptr <= 0)
-				return bufptr;
-			otx2_aura_freeptr(pfvf, pool_id, bufptr);
+			if (otx2_alloc_rbuf(pfvf, pool, &bufptr))
+				return -ENOMEM;
+			pfvf->hw_ops->aura_freeptr(pfvf, pool_id, bufptr);
 			sq->sqb_ptrs[sq->sqb_count++] = (u64)bufptr;
 		}
 	}
@@ -1271,7 +1324,7 @@ int otx2_rq_aura_pool_init(struct otx2_nic *pfvf)
 	int stack_pages, pool_id, rq;
 	struct otx2_pool *pool;
 	int err, ptr, num_ptrs;
-	s64 bufptr;
+	dma_addr_t bufptr;
 
 	num_ptrs = pfvf->qset.rqe_cnt;
 
@@ -1301,11 +1354,10 @@ int otx2_rq_aura_pool_init(struct otx2_nic *pfvf)
 	for (pool_id = 0; pool_id < hw->rqpool_cnt; pool_id++) {
 		pool = &pfvf->qset.pool[pool_id];
 		for (ptr = 0; ptr < num_ptrs; ptr++) {
-			bufptr = otx2_alloc_rbuf(pfvf, pool);
-			if (bufptr <= 0)
-				return bufptr;
-			otx2_aura_freeptr(pfvf, pool_id,
-					  bufptr + OTX2_HEAD_ROOM);
+			if (otx2_alloc_rbuf(pfvf, pool, &bufptr))
+				return -ENOMEM;
+			pfvf->hw_ops->aura_freeptr(pfvf, pool_id,
+						   bufptr + OTX2_HEAD_ROOM);
 		}
 	}
 
@@ -1482,6 +1534,13 @@ void mbox_handler_cgx_stats(struct otx2_nic *pfvf,
 		pfvf->hw.cgx_tx_stats[id] = rsp->tx_stats[id];
 }
 
+void mbox_handler_cgx_fec_stats(struct otx2_nic *pfvf,
+				struct cgx_fec_stats_rsp *rsp)
+{
+	pfvf->hw.cgx_fec_corr_blks += rsp->fec_corr_blks;
+	pfvf->hw.cgx_fec_uncorr_blks += rsp->fec_uncorr_blks;
+}
+
 void mbox_handler_nix_txsch_alloc(struct otx2_nic *pf,
 				  struct nix_txsch_alloc_rsp *rsp)
 {
@@ -1577,6 +1636,46 @@ void otx2_set_cints_affinity(struct otx2_nic *pfvf)
 	}
 }
 
+u16 otx2_get_max_mtu(struct otx2_nic *pfvf)
+{
+	struct nix_hw_info *rsp;
+	struct msg_req *req;
+	u16 max_mtu;
+	int rc;
+
+	mutex_lock(&pfvf->mbox.lock);
+
+	req = otx2_mbox_alloc_msg_nix_get_hw_info(&pfvf->mbox);
+	if (!req) {
+		rc =  -ENOMEM;
+		goto out;
+	}
+
+	rc = otx2_sync_mbox_msg(&pfvf->mbox);
+	if (!rc) {
+		rsp = (struct nix_hw_info *)
+		       otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr);
+
+		/* HW counts VLAN insertion bytes (8 for double tag)
+		 * irrespective of whether SQE is requesting to insert VLAN
+		 * in the packet or not. Hence these 8 bytes have to be
+		 * discounted from max packet size otherwise HW will throw
+		 * SMQ errors
+		 */
+		max_mtu = rsp->max_mtu - 8 - OTX2_ETH_HLEN;
+	}
+
+out:
+	mutex_unlock(&pfvf->mbox.lock);
+	if (rc) {
+		dev_warn(pfvf->dev,
+			 "Failed to get MTU from hardware setting default value(1500)\n");
+		max_mtu = 1500;
+	}
+	return max_mtu;
+}
+EXPORT_SYMBOL(otx2_get_max_mtu);
+
 #define M(_name, _id, _fn_name, _req_type, _rsp_type)			\
 int __weak								\
 otx2_mbox_up_handler_ ## _fn_name(struct otx2_nic *pfvf,		\