From 6ca3ee2f7d3a4b6063c14f5ebd1c6076035310ef Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:05 +0530
Subject: [PATCH 01/16] octeontx2-af: Improve register polling loop

Instead of looping on a integer timeout, use time_before(jiffies),
so that maximum poll time is capped.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
index 2033f42c3226..7cf5865254bb 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
@@ -47,18 +47,18 @@ MODULE_DEVICE_TABLE(pci, rvu_id_table);
  */
 int rvu_poll_reg(struct rvu *rvu, u64 block, u64 offset, u64 mask, bool zero)
 {
+	unsigned long timeout = jiffies + usecs_to_jiffies(100);
 	void __iomem *reg;
-	int timeout = 100;
 	u64 reg_val;
 
 	reg = rvu->afreg_base + ((block << 28) | offset);
-	while (timeout) {
+	while (time_before(jiffies, timeout)) {
 		reg_val = readq(reg);
 		if (zero && !(reg_val & mask))
 			return 0;
 		if (!zero && (reg_val & mask))
 			return 0;
-		usleep_range(1, 2);
+		usleep_range(1, 5);
 		timeout--;
 	}
 	return -EBUSY;

From 1435f66a28b44ac6b82f8601ee217d2eb55df4f2 Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:06 +0530
Subject: [PATCH 02/16] octeontx2-af: CGX Rx/Tx enable/disable mbox handlers

Added new mailbox msgs for RVU PF/VFs to request AF
to enable/disable their mapped CGX::LMAC Rx & Tx.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Linu Cherian <lcherian@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/marvell/octeontx2/af/cgx.c   | 18 +++++++++++
 .../net/ethernet/marvell/octeontx2/af/cgx.h   |  5 +++
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  2 ++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   | 16 ++++++++++
 .../ethernet/marvell/octeontx2/af/rvu_cgx.c   | 32 +++++++++++++++++++
 5 files changed, 73 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
index 5328ecc8cea2..03a91c69e630 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
@@ -119,6 +119,24 @@ void *cgx_get_pdata(int cgx_id)
 }
 EXPORT_SYMBOL(cgx_get_pdata);
 
+int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable)
+{
+	struct cgx *cgx = cgxd;
+	u64 cfg;
+
+	if (!cgx || lmac_id >= cgx->lmac_count)
+		return -ENODEV;
+
+	cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_CFG);
+	if (enable)
+		cfg |= CMR_EN | DATA_PKT_RX_EN | DATA_PKT_TX_EN;
+	else
+		cfg &= ~(CMR_EN | DATA_PKT_RX_EN | DATA_PKT_TX_EN);
+	cgx_write(cgx, lmac_id, CGXX_CMRX_CFG, cfg);
+	return 0;
+}
+EXPORT_SYMBOL(cgx_lmac_rx_tx_enable);
+
 /* CGX Firmware interface low level support */
 static int cgx_fwi_cmd_send(u64 req, u64 *resp, struct lmac *lmac)
 {
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
index a2a7a6d72d32..90979353216c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
@@ -24,6 +24,10 @@
 #define CGX_OFFSET(x)			((x) * MAX_LMAC_PER_CGX)
 
 /* Registers */
+#define CGXX_CMRX_CFG			0x00
+#define  CMR_EN					BIT_ULL(55)
+#define  DATA_PKT_TX_EN				BIT_ULL(53)
+#define  DATA_PKT_RX_EN				BIT_ULL(54)
 #define CGXX_CMRX_INT			0x040
 #define  FW_CGX_INT				BIT_ULL(1)
 #define CGXX_CMRX_INT_ENA_W1S		0x058
@@ -62,4 +66,5 @@ int cgx_get_cgx_cnt(void);
 int cgx_get_lmac_cnt(void *cgxd);
 void *cgx_get_pdata(int cgx_id);
 int cgx_lmac_evh_register(struct cgx_event_cb *cb, void *cgxd, int lmac_id);
+int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable);
 #endif /* CGX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index bedf0ee62450..6b66cf0a5e71 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -124,6 +124,8 @@ M(ATTACH_RESOURCES,	0x002, rsrc_attach, msg_rsp)			\
 M(DETACH_RESOURCES,	0x003, rsrc_detach, msg_rsp)			\
 M(MSIX_OFFSET,		0x004, msg_req, msix_offset_rsp)		\
 /* CGX mbox IDs (range 0x200 - 0x3FF) */				\
+M(CGX_START_RXTX,	0x200, msg_req, msg_rsp)			\
+M(CGX_STOP_RXTX,	0x201, msg_req, msg_rsp)			\
 /* NPA mbox IDs (range 0x400 - 0x5FF) */				\
 /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
 /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index d169fa9eb45e..4cf2bcb95644 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -153,6 +153,22 @@ int rvu_get_blkaddr(struct rvu *rvu, int blktype, u16 pcifunc);
 int rvu_poll_reg(struct rvu *rvu, u64 block, u64 offset, u64 mask, bool zero);
 
 /* CGX APIs */
+static inline bool is_pf_cgxmapped(struct rvu *rvu, u8 pf)
+{
+	return (pf >= PF_CGXMAP_BASE && pf <= rvu->cgx_mapped_pfs);
+}
+
+static inline void rvu_get_cgx_lmac_id(u8 map, u8 *cgx_id, u8 *lmac_id)
+{
+	*cgx_id = (map >> 4) & 0xF;
+	*lmac_id = (map & 0xF);
+}
+
 int rvu_cgx_probe(struct rvu *rvu);
 void rvu_cgx_wq_destroy(struct rvu *rvu);
+int rvu_cgx_config_rxtx(struct rvu *rvu, u16 pcifunc, bool start);
+int rvu_mbox_handler_CGX_START_RXTX(struct rvu *rvu, struct msg_req *req,
+				    struct msg_rsp *rsp);
+int rvu_mbox_handler_CGX_STOP_RXTX(struct rvu *rvu, struct msg_req *req,
+				   struct msg_rsp *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index 5ecc22308b22..75a03a840e7a 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -192,3 +192,35 @@ int rvu_cgx_probe(struct rvu *rvu)
 	cgx_lmac_event_handler_init(rvu);
 	return 0;
 }
+
+int rvu_cgx_config_rxtx(struct rvu *rvu, u16 pcifunc, bool start)
+{
+	int pf = rvu_get_pf(pcifunc);
+	u8 cgx_id, lmac_id;
+
+	/* This msg is expected only from PFs that are mapped to CGX LMACs,
+	 * if received from other PF/VF simply ACK, nothing to do.
+	 */
+	if ((pcifunc & RVU_PFVF_FUNC_MASK) || !is_pf_cgxmapped(rvu, pf))
+		return -ENODEV;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
+
+	cgx_lmac_rx_tx_enable(rvu_cgx_pdata(cgx_id, rvu), lmac_id, start);
+
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_START_RXTX(struct rvu *rvu, struct msg_req *req,
+				    struct msg_rsp *rsp)
+{
+	rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, true);
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_STOP_RXTX(struct rvu *rvu, struct msg_req *req,
+				   struct msg_rsp *rsp)
+{
+	rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, false);
+	return 0;
+}

From 66208910e57afda24ef37be64d413d354f9b523f Mon Sep 17 00:00:00 2001
From: Christina Jacob <cjacob@marvell.com>
Date: Tue, 16 Oct 2018 16:57:07 +0530
Subject: [PATCH 03/16] octeontx2-af: Support to retrieve CGX LMAC stats

This patch adds support for a RVU PF/VF driver to retrieve
it's mapped CGX LMAC Rx and Tx stats from AF via mbox.
New mailbox msg is added is added.

Signed-off-by: Christina Jacob <cjacob@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/marvell/octeontx2/af/cgx.c   | 22 +++++++++++
 .../net/ethernet/marvell/octeontx2/af/cgx.h   |  4 ++
 .../net/ethernet/marvell/octeontx2/af/mbox.h  | 11 ++++++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |  2 +
 .../ethernet/marvell/octeontx2/af/rvu_cgx.c   | 37 +++++++++++++++++++
 5 files changed, 76 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
index 03a91c69e630..a7dc6f265df8 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
@@ -119,6 +119,28 @@ void *cgx_get_pdata(int cgx_id)
 }
 EXPORT_SYMBOL(cgx_get_pdata);
 
+int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat)
+{
+	struct cgx *cgx = cgxd;
+
+	if (!cgx || lmac_id >= cgx->lmac_count)
+		return -ENODEV;
+	*rx_stat =  cgx_read(cgx, lmac_id, CGXX_CMRX_RX_STAT0 + (idx * 8));
+	return 0;
+}
+EXPORT_SYMBOL(cgx_get_rx_stats);
+
+int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat)
+{
+	struct cgx *cgx = cgxd;
+
+	if (!cgx || lmac_id >= cgx->lmac_count)
+		return -ENODEV;
+	*tx_stat = cgx_read(cgx, lmac_id, CGXX_CMRX_TX_STAT0 + (idx * 8));
+	return 0;
+}
+EXPORT_SYMBOL(cgx_get_tx_stats);
+
 int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable)
 {
 	struct cgx *cgx = cgxd;
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
index 90979353216c..8f596dfb6b2a 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
@@ -32,7 +32,9 @@
 #define  FW_CGX_INT				BIT_ULL(1)
 #define CGXX_CMRX_INT_ENA_W1S		0x058
 #define CGXX_CMRX_RX_ID_MAP		0x060
+#define CGXX_CMRX_RX_STAT0		0x070
 #define CGXX_CMRX_RX_LMACS		0x128
+#define CGXX_CMRX_TX_STAT0		0x700
 #define CGXX_SCRATCH0_REG		0x1050
 #define CGXX_SCRATCH1_REG		0x1058
 #define CGX_CONST			0x2000
@@ -66,5 +68,7 @@ int cgx_get_cgx_cnt(void);
 int cgx_get_lmac_cnt(void *cgxd);
 void *cgx_get_pdata(int cgx_id);
 int cgx_lmac_evh_register(struct cgx_event_cb *cb, void *cgxd, int lmac_id);
+int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat);
+int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat);
 int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable);
 #endif /* CGX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 6b66cf0a5e71..03dd04d53f3b 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -126,6 +126,7 @@ M(MSIX_OFFSET,		0x004, msg_req, msix_offset_rsp)		\
 /* CGX mbox IDs (range 0x200 - 0x3FF) */				\
 M(CGX_START_RXTX,	0x200, msg_req, msg_rsp)			\
 M(CGX_STOP_RXTX,	0x201, msg_req, msg_rsp)			\
+M(CGX_STATS,		0x202, msg_req, cgx_stats_rsp)			\
 /* NPA mbox IDs (range 0x400 - 0x5FF) */				\
 /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
 /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
@@ -210,4 +211,14 @@ struct msix_offset_rsp {
 	u16  cptlf_msixoff[MAX_RVU_BLKLF_CNT];
 };
 
+/* CGX mbox message formats */
+
+struct cgx_stats_rsp {
+	struct mbox_msghdr hdr;
+#define CGX_RX_STATS_COUNT	13
+#define CGX_TX_STATS_COUNT	18
+	u64 rx_stats[CGX_RX_STATS_COUNT];
+	u64 tx_stats[CGX_TX_STATS_COUNT];
+};
+
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 4cf2bcb95644..8ee66632ed29 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -171,4 +171,6 @@ int rvu_mbox_handler_CGX_START_RXTX(struct rvu *rvu, struct msg_req *req,
 				    struct msg_rsp *rsp);
 int rvu_mbox_handler_CGX_STOP_RXTX(struct rvu *rvu, struct msg_req *req,
 				   struct msg_rsp *rsp);
+int rvu_mbox_handler_CGX_STATS(struct rvu *rvu, struct msg_req *req,
+			       struct cgx_stats_rsp *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index 75a03a840e7a..a4aa1e07e8f9 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -224,3 +224,40 @@ int rvu_mbox_handler_CGX_STOP_RXTX(struct rvu *rvu, struct msg_req *req,
 	rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, false);
 	return 0;
 }
+
+int rvu_mbox_handler_CGX_STATS(struct rvu *rvu, struct msg_req *req,
+			       struct cgx_stats_rsp *rsp)
+{
+	int pf = rvu_get_pf(req->hdr.pcifunc);
+	int stat = 0, err = 0;
+	u64 tx_stat, rx_stat;
+	u8 cgx_idx, lmac;
+	void *cgxd;
+
+	if ((req->hdr.pcifunc & RVU_PFVF_FUNC_MASK) ||
+	    !is_pf_cgxmapped(rvu, pf))
+		return -ENODEV;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
+	cgxd = rvu_cgx_pdata(cgx_idx, rvu);
+
+	/* Rx stats */
+	while (stat < CGX_RX_STATS_COUNT) {
+		err = cgx_get_rx_stats(cgxd, lmac, stat, &rx_stat);
+		if (err)
+			return err;
+		rsp->rx_stats[stat] = rx_stat;
+		stat++;
+	}
+
+	/* Tx stats */
+	stat = 0;
+	while (stat < CGX_TX_STATS_COUNT) {
+		err = cgx_get_tx_stats(cgxd, lmac, stat, &tx_stat);
+		if (err)
+			return err;
+		rsp->tx_stats[stat] = tx_stat;
+		stat++;
+	}
+	return 0;
+}

From 96be2e0da85eb1c26e8d1d38ed4855a9c4eba167 Mon Sep 17 00:00:00 2001
From: Vidhya Raman <vraman@marvell.com>
Date: Tue, 16 Oct 2018 16:57:08 +0530
Subject: [PATCH 04/16] octeontx2-af: Support for MAC address filters in CGX

This patch adds support for setting MAC address filters in CGX
for PF interfaces. Also PF interfaces can be put in promiscuous
mode. Dataplane PFs access this functionality using mailbox
messages to the AF driver.

Signed-off-by: Vidhya Raman <vraman@marvell.com>
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/marvell/octeontx2/af/cgx.c   | 75 +++++++++++++++++++
 .../net/ethernet/marvell/octeontx2/af/cgx.h   | 12 +++
 .../net/ethernet/marvell/octeontx2/af/mbox.h  | 13 ++++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   | 10 +++
 .../ethernet/marvell/octeontx2/af/rvu_cgx.c   | 73 ++++++++++++++++++
 5 files changed, 183 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
index a7dc6f265df8..e7ae9e0af9fe 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
@@ -119,6 +119,81 @@ void *cgx_get_pdata(int cgx_id)
 }
 EXPORT_SYMBOL(cgx_get_pdata);
 
+static u64 mac2u64 (u8 *mac_addr)
+{
+	u64 mac = 0;
+	int index;
+
+	for (index = ETH_ALEN - 1; index >= 0; index--)
+		mac |= ((u64)*mac_addr++) << (8 * index);
+	return mac;
+}
+
+int cgx_lmac_addr_set(u8 cgx_id, u8 lmac_id, u8 *mac_addr)
+{
+	struct cgx *cgx_dev = cgx_get_pdata(cgx_id);
+	u64 cfg;
+
+	/* copy 6bytes from macaddr */
+	/* memcpy(&cfg, mac_addr, 6); */
+
+	cfg = mac2u64 (mac_addr);
+
+	cgx_write(cgx_dev, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (lmac_id * 0x8)),
+		  cfg | CGX_DMAC_CAM_ADDR_ENABLE | ((u64)lmac_id << 49));
+
+	cfg = cgx_read(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0);
+	cfg |= CGX_DMAC_CTL0_CAM_ENABLE;
+	cgx_write(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg);
+
+	return 0;
+}
+EXPORT_SYMBOL(cgx_lmac_addr_set);
+
+u64 cgx_lmac_addr_get(u8 cgx_id, u8 lmac_id)
+{
+	struct cgx *cgx_dev = cgx_get_pdata(cgx_id);
+	u64 cfg;
+
+	cfg = cgx_read(cgx_dev, 0, CGXX_CMRX_RX_DMAC_CAM0 + lmac_id * 0x8);
+	return cfg & CGX_RX_DMAC_ADR_MASK;
+}
+EXPORT_SYMBOL(cgx_lmac_addr_get);
+
+void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable)
+{
+	struct cgx *cgx = cgx_get_pdata(cgx_id);
+	u64 cfg = 0;
+
+	if (!cgx)
+		return;
+
+	if (enable) {
+		/* Enable promiscuous mode on LMAC */
+		cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_RX_DMAC_CTL0);
+		cfg &= ~(CGX_DMAC_CAM_ACCEPT | CGX_DMAC_MCAST_MODE);
+		cfg |= CGX_DMAC_BCAST_MODE;
+		cgx_write(cgx, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg);
+
+		cfg = cgx_read(cgx, 0,
+			       (CGXX_CMRX_RX_DMAC_CAM0 + lmac_id * 0x8));
+		cfg &= ~CGX_DMAC_CAM_ADDR_ENABLE;
+		cgx_write(cgx, 0,
+			  (CGXX_CMRX_RX_DMAC_CAM0 + lmac_id * 0x8), cfg);
+	} else {
+		/* Disable promiscuous mode */
+		cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_RX_DMAC_CTL0);
+		cfg |= CGX_DMAC_CAM_ACCEPT | CGX_DMAC_MCAST_MODE;
+		cgx_write(cgx, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg);
+		cfg = cgx_read(cgx, 0,
+			       (CGXX_CMRX_RX_DMAC_CAM0 + lmac_id * 0x8));
+		cfg |= CGX_DMAC_CAM_ADDR_ENABLE;
+		cgx_write(cgx, 0,
+			  (CGXX_CMRX_RX_DMAC_CAM0 + lmac_id * 0x8), cfg);
+	}
+}
+EXPORT_SYMBOL(cgx_lmac_promisc_config);
+
 int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat)
 {
 	struct cgx *cgx = cgxd;
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
index 8f596dfb6b2a..3ae426bff721 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
@@ -34,6 +34,15 @@
 #define CGXX_CMRX_RX_ID_MAP		0x060
 #define CGXX_CMRX_RX_STAT0		0x070
 #define CGXX_CMRX_RX_LMACS		0x128
+#define CGXX_CMRX_RX_DMAC_CTL0		0x1F8
+#define  CGX_DMAC_CTL0_CAM_ENABLE		BIT_ULL(3)
+#define  CGX_DMAC_CAM_ACCEPT			BIT_ULL(3)
+#define  CGX_DMAC_MCAST_MODE			BIT_ULL(1)
+#define  CGX_DMAC_BCAST_MODE			BIT_ULL(0)
+#define CGXX_CMRX_RX_DMAC_CAM0		0x200
+#define  CGX_DMAC_CAM_ADDR_ENABLE		BIT_ULL(48)
+#define CGXX_CMRX_RX_DMAC_CAM1		0x400
+#define CGX_RX_DMAC_ADR_MASK			GENMASK_ULL(47, 0)
 #define CGXX_CMRX_TX_STAT0		0x700
 #define CGXX_SCRATCH0_REG		0x1050
 #define CGXX_SCRATCH1_REG		0x1058
@@ -71,4 +80,7 @@ int cgx_lmac_evh_register(struct cgx_event_cb *cb, void *cgxd, int lmac_id);
 int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat);
 int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat);
 int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable);
+int cgx_lmac_addr_set(u8 cgx_id, u8 lmac_id, u8 *mac_addr);
+u64 cgx_lmac_addr_get(u8 cgx_id, u8 lmac_id);
+void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable);
 #endif /* CGX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 03dd04d53f3b..53946e80adef 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -127,6 +127,12 @@ M(MSIX_OFFSET,		0x004, msg_req, msix_offset_rsp)		\
 M(CGX_START_RXTX,	0x200, msg_req, msg_rsp)			\
 M(CGX_STOP_RXTX,	0x201, msg_req, msg_rsp)			\
 M(CGX_STATS,		0x202, msg_req, cgx_stats_rsp)			\
+M(CGX_MAC_ADDR_SET,	0x203, cgx_mac_addr_set_or_get,			\
+				cgx_mac_addr_set_or_get)		\
+M(CGX_MAC_ADDR_GET,	0x204, cgx_mac_addr_set_or_get,			\
+				cgx_mac_addr_set_or_get)		\
+M(CGX_PROMISC_ENABLE,	0x205, msg_req, msg_rsp)			\
+M(CGX_PROMISC_DISABLE,	0x206, msg_req, msg_rsp)			\
 /* NPA mbox IDs (range 0x400 - 0x5FF) */				\
 /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
 /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
@@ -221,4 +227,11 @@ struct cgx_stats_rsp {
 	u64 tx_stats[CGX_TX_STATS_COUNT];
 };
 
+/* Structure for requesting the operation for
+ * setting/getting mac address in the CGX interface
+ */
+struct cgx_mac_addr_set_or_get {
+	struct mbox_msghdr hdr;
+	u8 mac_addr[ETH_ALEN];
+};
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 8ee66632ed29..331b8b39cbfb 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -173,4 +173,14 @@ int rvu_mbox_handler_CGX_STOP_RXTX(struct rvu *rvu, struct msg_req *req,
 				   struct msg_rsp *rsp);
 int rvu_mbox_handler_CGX_STATS(struct rvu *rvu, struct msg_req *req,
 			       struct cgx_stats_rsp *rsp);
+int rvu_mbox_handler_CGX_MAC_ADDR_SET(struct rvu *rvu,
+				      struct cgx_mac_addr_set_or_get *req,
+				      struct cgx_mac_addr_set_or_get *rsp);
+int rvu_mbox_handler_CGX_MAC_ADDR_GET(struct rvu *rvu,
+				      struct cgx_mac_addr_set_or_get *req,
+				      struct cgx_mac_addr_set_or_get *rsp);
+int rvu_mbox_handler_CGX_PROMISC_ENABLE(struct rvu *rvu, struct msg_req *req,
+					struct msg_rsp *rsp);
+int rvu_mbox_handler_CGX_PROMISC_DISABLE(struct rvu *rvu, struct msg_req *req,
+					 struct msg_rsp *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index a4aa1e07e8f9..71e795e13aa8 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -261,3 +261,76 @@ int rvu_mbox_handler_CGX_STATS(struct rvu *rvu, struct msg_req *req,
 	}
 	return 0;
 }
+
+int rvu_mbox_handler_CGX_MAC_ADDR_SET(struct rvu *rvu,
+				      struct cgx_mac_addr_set_or_get *req,
+				      struct cgx_mac_addr_set_or_get *rsp)
+{
+	int pf = rvu_get_pf(req->hdr.pcifunc);
+	u8 cgx_id, lmac_id;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
+
+	cgx_lmac_addr_set(cgx_id, lmac_id, req->mac_addr);
+
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_MAC_ADDR_GET(struct rvu *rvu,
+				      struct cgx_mac_addr_set_or_get *req,
+				      struct cgx_mac_addr_set_or_get *rsp)
+{
+	int pf = rvu_get_pf(req->hdr.pcifunc);
+	u8 cgx_id, lmac_id;
+	int rc = 0, i;
+	u64 cfg;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
+
+	rsp->hdr.rc = rc;
+	cfg = cgx_lmac_addr_get(cgx_id, lmac_id);
+	/* copy 48 bit mac address to req->mac_addr */
+	for (i = 0; i < ETH_ALEN; i++)
+		rsp->mac_addr[i] = cfg >> (ETH_ALEN - 1 - i) * 8;
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_PROMISC_ENABLE(struct rvu *rvu, struct msg_req *req,
+					struct msg_rsp *rsp)
+{
+	u16 pcifunc = req->hdr.pcifunc;
+	int pf = rvu_get_pf(pcifunc);
+	u8 cgx_id, lmac_id;
+
+	/* This msg is expected only from PFs that are mapped to CGX LMACs,
+	 * if received from other PF/VF simply ACK, nothing to do.
+	 */
+	if ((req->hdr.pcifunc & RVU_PFVF_FUNC_MASK) ||
+	    !is_pf_cgxmapped(rvu, pf))
+		return -ENODEV;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
+
+	cgx_lmac_promisc_config(cgx_id, lmac_id, true);
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_PROMISC_DISABLE(struct rvu *rvu, struct msg_req *req,
+					 struct msg_rsp *rsp)
+{
+	u16 pcifunc = req->hdr.pcifunc;
+	int pf = rvu_get_pf(pcifunc);
+	u8 cgx_id, lmac_id;
+
+	/* This msg is expected only from PFs that are mapped to CGX LMACs,
+	 * if received from other PF/VF simply ACK, nothing to do.
+	 */
+	if ((req->hdr.pcifunc & RVU_PFVF_FUNC_MASK) ||
+	    !is_pf_cgxmapped(rvu, pf))
+		return -ENODEV;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
+
+	cgx_lmac_promisc_config(cgx_id, lmac_id, false);
+	return 0;
+}

From 61071a871ea6eb2125ece91c1a0dbb124a318c8a Mon Sep 17 00:00:00 2001
From: Linu Cherian <lcherian@marvell.com>
Date: Tue, 16 Oct 2018 16:57:09 +0530
Subject: [PATCH 05/16] octeontx2-af: Forward CGX link notifications to PFs

Upon receiving notification from firmware the CGX event handler
in the AF driver gets the current link info such as status, speed,
duplex etc from CGX driver and sends it across to PFs who have
registered to receive such notifications.

To support above
 - Mbox messaging support for sending msgs from AF to PF has been added.
 - Added mbox msgs so that PFs can register/unregister for link events.
 - Link notifications are sent to PF under two scenarioss.
  1. When a asynchronous link change notification is received from
     firmware with notification flag turned on for that PF.
  2. Upon notification turn on request, the current link status is
     send to the PF.

Also added a new mailbox msg using which RVU PF/VF can retrieve
their mapped CGX LMAC's current link info. Link info includes
status, speed, duplex and lmac type.

Signed-off-by: Linu Cherian <lcherian@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/marvell/octeontx2/af/cgx.c   |  99 ++++++++++--
 .../net/ethernet/marvell/octeontx2/af/cgx.h   |  21 ++-
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  22 +++
 .../net/ethernet/marvell/octeontx2/af/rvu.c   |  82 ++++++++++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |   9 ++
 .../ethernet/marvell/octeontx2/af/rvu_cgx.c   | 147 +++++++++++++++++-
 6 files changed, 368 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
index e7ae9e0af9fe..077f83f4f2f0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
@@ -29,6 +29,7 @@
  * @wq_cmd_cmplt:	waitq to keep the process blocked until cmd completion
  * @cmd_lock:		Lock to serialize the command interface
  * @resp:		command response
+ * @link_info:		link related information
  * @event_cb:		callback for linkchange events
  * @cmd_pend:		flag set before new command is started
  *			flag cleared after command response is received
@@ -40,6 +41,7 @@ struct lmac {
 	wait_queue_head_t wq_cmd_cmplt;
 	struct mutex cmd_lock;
 	u64 resp;
+	struct cgx_link_user_info link_info;
 	struct cgx_event_cb event_cb;
 	bool cmd_pend;
 	struct cgx *cgx;
@@ -58,6 +60,12 @@ struct cgx {
 
 static LIST_HEAD(cgx_list);
 
+/* Convert firmware speed encoding to user format(Mbps) */
+static u32 cgx_speed_mbps[CGX_LINK_SPEED_MAX];
+
+/* Convert firmware lmac type encoding to string */
+static char *cgx_lmactype_string[LMAC_MODE_MAX];
+
 /* Supported devices */
 static const struct pci_device_id cgx_id_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_CGX) },
@@ -119,6 +127,24 @@ void *cgx_get_pdata(int cgx_id)
 }
 EXPORT_SYMBOL(cgx_get_pdata);
 
+/* Ensure the required lock for event queue(where asynchronous events are
+ * posted) is acquired before calling this API. Else an asynchronous event(with
+ * latest link status) can reach the destination before this function returns
+ * and could make the link status appear wrong.
+ */
+int cgx_get_link_info(void *cgxd, int lmac_id,
+		      struct cgx_link_user_info *linfo)
+{
+	struct lmac *lmac = lmac_pdata(lmac_id, cgxd);
+
+	if (!lmac)
+		return -ENODEV;
+
+	*linfo = lmac->link_info;
+	return 0;
+}
+EXPORT_SYMBOL(cgx_get_link_info);
+
 static u64 mac2u64 (u8 *mac_addr)
 {
 	u64 mac = 0;
@@ -160,6 +186,14 @@ u64 cgx_lmac_addr_get(u8 cgx_id, u8 lmac_id)
 }
 EXPORT_SYMBOL(cgx_lmac_addr_get);
 
+static inline u8 cgx_get_lmac_type(struct cgx *cgx, int lmac_id)
+{
+	u64 cfg;
+
+	cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_CFG);
+	return (cfg >> CGX_LMAC_TYPE_SHIFT) & CGX_LMAC_TYPE_MASK;
+}
+
 void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable)
 {
 	struct cgx *cgx = cgx_get_pdata(cgx_id);
@@ -306,36 +340,79 @@ static inline int cgx_fwi_cmd_generic(u64 req, u64 *resp,
 	return err;
 }
 
+static inline void cgx_link_usertable_init(void)
+{
+	cgx_speed_mbps[CGX_LINK_NONE] = 0;
+	cgx_speed_mbps[CGX_LINK_10M] = 10;
+	cgx_speed_mbps[CGX_LINK_100M] = 100;
+	cgx_speed_mbps[CGX_LINK_1G] = 1000;
+	cgx_speed_mbps[CGX_LINK_2HG] = 2500;
+	cgx_speed_mbps[CGX_LINK_5G] = 5000;
+	cgx_speed_mbps[CGX_LINK_10G] = 10000;
+	cgx_speed_mbps[CGX_LINK_20G] = 20000;
+	cgx_speed_mbps[CGX_LINK_25G] = 25000;
+	cgx_speed_mbps[CGX_LINK_40G] = 40000;
+	cgx_speed_mbps[CGX_LINK_50G] = 50000;
+	cgx_speed_mbps[CGX_LINK_100G] = 100000;
+
+	cgx_lmactype_string[LMAC_MODE_SGMII] = "SGMII";
+	cgx_lmactype_string[LMAC_MODE_XAUI] = "XAUI";
+	cgx_lmactype_string[LMAC_MODE_RXAUI] = "RXAUI";
+	cgx_lmactype_string[LMAC_MODE_10G_R] = "10G_R";
+	cgx_lmactype_string[LMAC_MODE_40G_R] = "40G_R";
+	cgx_lmactype_string[LMAC_MODE_QSGMII] = "QSGMII";
+	cgx_lmactype_string[LMAC_MODE_25G_R] = "25G_R";
+	cgx_lmactype_string[LMAC_MODE_50G_R] = "50G_R";
+	cgx_lmactype_string[LMAC_MODE_100G_R] = "100G_R";
+	cgx_lmactype_string[LMAC_MODE_USXGMII] = "USXGMII";
+}
+
+static inline void link_status_user_format(u64 lstat,
+					   struct cgx_link_user_info *linfo,
+					   struct cgx *cgx, u8 lmac_id)
+{
+	char *lmac_string;
+
+	linfo->link_up = FIELD_GET(RESP_LINKSTAT_UP, lstat);
+	linfo->full_duplex = FIELD_GET(RESP_LINKSTAT_FDUPLEX, lstat);
+	linfo->speed = cgx_speed_mbps[FIELD_GET(RESP_LINKSTAT_SPEED, lstat)];
+	linfo->lmac_type_id = cgx_get_lmac_type(cgx, lmac_id);
+	lmac_string = cgx_lmactype_string[linfo->lmac_type_id];
+	strncpy(linfo->lmac_type, lmac_string, LMACTYPE_STR_LEN - 1);
+}
+
 /* Hardware event handlers */
 static inline void cgx_link_change_handler(u64 lstat,
 					   struct lmac *lmac)
 {
+	struct cgx_link_user_info *linfo;
 	struct cgx *cgx = lmac->cgx;
 	struct cgx_link_event event;
 	struct device *dev;
+	int err_type;
 
 	dev = &cgx->pdev->dev;
 
-	event.lstat.link_up = FIELD_GET(RESP_LINKSTAT_UP, lstat);
-	event.lstat.full_duplex = FIELD_GET(RESP_LINKSTAT_FDUPLEX, lstat);
-	event.lstat.speed = FIELD_GET(RESP_LINKSTAT_SPEED, lstat);
-	event.lstat.err_type = FIELD_GET(RESP_LINKSTAT_ERRTYPE, lstat);
+	link_status_user_format(lstat, &event.link_uinfo, cgx, lmac->lmac_id);
+	err_type = FIELD_GET(RESP_LINKSTAT_ERRTYPE, lstat);
 
 	event.cgx_id = cgx->cgx_id;
 	event.lmac_id = lmac->lmac_id;
 
+	/* update the local copy of link status */
+	lmac->link_info = event.link_uinfo;
+	linfo = &lmac->link_info;
+
 	if (!lmac->event_cb.notify_link_chg) {
 		dev_dbg(dev, "cgx port %d:%d Link change handler null",
 			cgx->cgx_id, lmac->lmac_id);
-		if (event.lstat.err_type != CGX_ERR_NONE) {
+		if (err_type != CGX_ERR_NONE) {
 			dev_err(dev, "cgx port %d:%d Link error %d\n",
-				cgx->cgx_id, lmac->lmac_id,
-				event.lstat.err_type);
+				cgx->cgx_id, lmac->lmac_id, err_type);
 		}
-		dev_info(dev, "cgx port %d:%d Link status %s, speed %x\n",
+		dev_info(dev, "cgx port %d:%d Link is %s %d Mbps\n",
 			 cgx->cgx_id, lmac->lmac_id,
-			event.lstat.link_up ? "UP" : "DOWN",
-			event.lstat.speed);
+			 linfo->link_up ? "UP" : "DOWN", linfo->speed);
 		return;
 	}
 
@@ -563,6 +640,8 @@ static int cgx_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	list_add(&cgx->cgx_list, &cgx_list);
 	cgx->cgx_id = cgx_get_cgx_cnt() - 1;
 
+	cgx_link_usertable_init();
+
 	err = cgx_lmac_init(cgx);
 	if (err)
 		goto err_release_lmac;
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
index 3ae426bff721..c89edfaacbe6 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
@@ -11,6 +11,7 @@
 #ifndef CGX_H
 #define CGX_H
 
+#include "mbox.h"
 #include "cgx_fw_if.h"
 
  /* PCI device IDs */
@@ -28,6 +29,8 @@
 #define  CMR_EN					BIT_ULL(55)
 #define  DATA_PKT_TX_EN				BIT_ULL(53)
 #define  DATA_PKT_RX_EN				BIT_ULL(54)
+#define  CGX_LMAC_TYPE_SHIFT			40
+#define  CGX_LMAC_TYPE_MASK			0xF
 #define CGXX_CMRX_INT			0x040
 #define  FW_CGX_INT				BIT_ULL(1)
 #define CGXX_CMRX_INT_ENA_W1S		0x058
@@ -55,8 +58,22 @@
 #define CGX_NVEC			37
 #define CGX_LMAC_FWI			0
 
+enum LMAC_TYPE {
+	LMAC_MODE_SGMII		= 0,
+	LMAC_MODE_XAUI		= 1,
+	LMAC_MODE_RXAUI		= 2,
+	LMAC_MODE_10G_R		= 3,
+	LMAC_MODE_40G_R		= 4,
+	LMAC_MODE_QSGMII	= 6,
+	LMAC_MODE_25G_R		= 7,
+	LMAC_MODE_50G_R		= 8,
+	LMAC_MODE_100G_R	= 9,
+	LMAC_MODE_USXGMII	= 10,
+	LMAC_MODE_MAX,
+};
+
 struct cgx_link_event {
-	struct cgx_lnk_sts lstat;
+	struct cgx_link_user_info link_uinfo;
 	u8 cgx_id;
 	u8 lmac_id;
 };
@@ -83,4 +100,6 @@ int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable);
 int cgx_lmac_addr_set(u8 cgx_id, u8 lmac_id, u8 *mac_addr);
 u64 cgx_lmac_addr_get(u8 cgx_id, u8 lmac_id);
 void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable);
+int cgx_get_link_info(void *cgxd, int lmac_id,
+		      struct cgx_link_user_info *linfo);
 #endif /* CGX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 53946e80adef..9f3790b507a6 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -133,6 +133,9 @@ M(CGX_MAC_ADDR_GET,	0x204, cgx_mac_addr_set_or_get,			\
 				cgx_mac_addr_set_or_get)		\
 M(CGX_PROMISC_ENABLE,	0x205, msg_req, msg_rsp)			\
 M(CGX_PROMISC_DISABLE,	0x206, msg_req, msg_rsp)			\
+M(CGX_START_LINKEVENTS, 0x207, msg_req, msg_rsp)			\
+M(CGX_STOP_LINKEVENTS,	0x208, msg_req, msg_rsp)			\
+M(CGX_GET_LINKINFO,	0x209, msg_req, cgx_link_info_msg)		\
 /* NPA mbox IDs (range 0x400 - 0x5FF) */				\
 /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
 /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
@@ -140,9 +143,14 @@ M(CGX_PROMISC_DISABLE,	0x206, msg_req, msg_rsp)			\
 /* NPC mbox IDs (range 0x6000 - 0x7FFF) */				\
 /* NIX mbox IDs (range 0x8000 - 0xFFFF) */				\
 
+/* Messages initiated by AF (range 0xC00 - 0xDFF) */
+#define MBOX_UP_CGX_MESSAGES						\
+M(CGX_LINK_EVENT,		0xC00, cgx_link_info_msg, msg_rsp)
+
 enum {
 #define M(_name, _id, _1, _2) MBOX_MSG_ ## _name = _id,
 MBOX_MESSAGES
+MBOX_UP_CGX_MESSAGES
 #undef M
 };
 
@@ -234,4 +242,18 @@ struct cgx_mac_addr_set_or_get {
 	struct mbox_msghdr hdr;
 	u8 mac_addr[ETH_ALEN];
 };
+
+struct cgx_link_user_info {
+	uint64_t link_up:1;
+	uint64_t full_duplex:1;
+	uint64_t lmac_type_id:4;
+	uint64_t speed:20; /* speed in Mbps */
+#define LMACTYPE_STR_LEN 16
+	char lmac_type[LMACTYPE_STR_LEN];
+};
+
+struct cgx_link_info_msg {
+	struct mbox_msghdr hdr;
+	struct cgx_link_user_info link_info;
+};
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
index 7cf5865254bb..85994ab3ed17 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
@@ -1316,6 +1316,63 @@ static void rvu_mbox_handler(struct work_struct *work)
 	otx2_mbox_msg_send(mbox, pf);
 }
 
+static void rvu_mbox_up_handler(struct work_struct *work)
+{
+	struct rvu_work *mwork = container_of(work, struct rvu_work, work);
+	struct rvu *rvu = mwork->rvu;
+	struct otx2_mbox_dev *mdev;
+	struct mbox_hdr *rsp_hdr;
+	struct mbox_msghdr *msg;
+	struct otx2_mbox *mbox;
+	int offset, id;
+	u16 pf;
+
+	mbox = &rvu->mbox_up;
+	pf = mwork - rvu->mbox_wrk_up;
+	mdev = &mbox->dev[pf];
+
+	rsp_hdr = mdev->mbase + mbox->rx_start;
+	if (rsp_hdr->num_msgs == 0) {
+		dev_warn(rvu->dev, "mbox up handler: num_msgs = 0\n");
+		return;
+	}
+
+	offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN);
+
+	for (id = 0; id < rsp_hdr->num_msgs; id++) {
+		msg = mdev->mbase + offset;
+
+		if (msg->id >= MBOX_MSG_MAX) {
+			dev_err(rvu->dev,
+				"Mbox msg with unknown ID 0x%x\n", msg->id);
+			goto end;
+		}
+
+		if (msg->sig != OTX2_MBOX_RSP_SIG) {
+			dev_err(rvu->dev,
+				"Mbox msg with wrong signature %x, ID 0x%x\n",
+				msg->sig, msg->id);
+			goto end;
+		}
+
+		switch (msg->id) {
+		case MBOX_MSG_CGX_LINK_EVENT:
+			break;
+		default:
+			if (msg->rc)
+				dev_err(rvu->dev,
+					"Mbox msg response has err %d, ID 0x%x\n",
+					msg->rc, msg->id);
+			break;
+		}
+end:
+		offset = mbox->rx_start + msg->next_msgoff;
+		mdev->msgs_acked++;
+	}
+
+	otx2_mbox_reset(mbox, 0);
+}
+
 static int rvu_mbox_init(struct rvu *rvu)
 {
 	struct rvu_hwinfo *hw = rvu->hw;
@@ -1337,6 +1394,13 @@ static int rvu_mbox_init(struct rvu *rvu)
 		goto exit;
 	}
 
+	rvu->mbox_wrk_up = devm_kcalloc(rvu->dev, hw->total_pfs,
+					sizeof(struct rvu_work), GFP_KERNEL);
+	if (!rvu->mbox_wrk_up) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
 	/* Map mbox region shared with PFs */
 	bar4_addr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PF_BAR4_ADDR);
 	/* Mailbox is a reserved memory (in RAM) region shared between
@@ -1355,12 +1419,23 @@ static int rvu_mbox_init(struct rvu *rvu)
 	if (err)
 		goto exit;
 
+	err = otx2_mbox_init(&rvu->mbox_up, hwbase, rvu->pdev, rvu->afreg_base,
+			     MBOX_DIR_AFPF_UP, hw->total_pfs);
+	if (err)
+		goto exit;
+
 	for (pf = 0; pf < hw->total_pfs; pf++) {
 		mwork = &rvu->mbox_wrk[pf];
 		mwork->rvu = rvu;
 		INIT_WORK(&mwork->work, rvu_mbox_handler);
 	}
 
+	for (pf = 0; pf < hw->total_pfs; pf++) {
+		mwork = &rvu->mbox_wrk_up[pf];
+		mwork->rvu = rvu;
+		INIT_WORK(&mwork->work, rvu_mbox_up_handler);
+	}
+
 	return 0;
 exit:
 	if (hwbase)
@@ -1381,6 +1456,7 @@ static void rvu_mbox_destroy(struct rvu *rvu)
 		iounmap((void __iomem *)rvu->mbox.hwbase);
 
 	otx2_mbox_destroy(&rvu->mbox);
+	otx2_mbox_destroy(&rvu->mbox_up);
 }
 
 static irqreturn_t rvu_mbox_intr_handler(int irq, void *rvu_irq)
@@ -1407,6 +1483,12 @@ static irqreturn_t rvu_mbox_intr_handler(int irq, void *rvu_irq)
 			if (hdr->num_msgs)
 				queue_work(rvu->mbox_wq,
 					   &rvu->mbox_wrk[pf].work);
+			mbox = &rvu->mbox_up;
+			mdev = &mbox->dev[pf];
+			hdr = mdev->mbase + mbox->rx_start;
+			if (hdr->num_msgs)
+				queue_work(rvu->mbox_wq,
+					   &rvu->mbox_wrk_up[pf].work);
 		}
 	}
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 331b8b39cbfb..83478086ddb8 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -93,6 +93,8 @@ struct rvu {
 	/* Mbox */
 	struct otx2_mbox	mbox;
 	struct rvu_work		*mbox_wrk;
+	struct otx2_mbox        mbox_up;
+	struct rvu_work		*mbox_wrk_up;
 	struct workqueue_struct *mbox_wq;
 
 	/* MSI-X */
@@ -109,6 +111,7 @@ struct rvu {
 	u16			*cgxlmac2pf_map; /* bitmap of mapped pfs for
 						  * every cgx lmac port
 						  */
+	unsigned long		pf_notify_bmap; /* Flags for PF notification */
 	void			**cgx_idmap; /* cgx id to cgx data map table */
 	struct			work_struct cgx_evh_work;
 	struct			workqueue_struct *cgx_evh_wq;
@@ -183,4 +186,10 @@ int rvu_mbox_handler_CGX_PROMISC_ENABLE(struct rvu *rvu, struct msg_req *req,
 					struct msg_rsp *rsp);
 int rvu_mbox_handler_CGX_PROMISC_DISABLE(struct rvu *rvu, struct msg_req *req,
 					 struct msg_rsp *rsp);
+int rvu_mbox_handler_CGX_START_LINKEVENTS(struct rvu *rvu, struct msg_req *req,
+					  struct msg_rsp *rsp);
+int rvu_mbox_handler_CGX_STOP_LINKEVENTS(struct rvu *rvu, struct msg_req *req,
+					 struct msg_rsp *rsp);
+int rvu_mbox_handler_CGX_GET_LINKINFO(struct rvu *rvu, struct msg_req *req,
+				      struct cgx_link_info_msg *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index 71e795e13aa8..e917f28b220c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -20,6 +20,31 @@ struct cgx_evq_entry {
 	struct cgx_link_event link_event;
 };
 
+#define M(_name, _id, _req_type, _rsp_type)				\
+static struct _req_type __maybe_unused					\
+*otx2_mbox_alloc_msg_ ## _name(struct rvu *rvu, int devid)		\
+{									\
+	struct _req_type *req;						\
+									\
+	req = (struct _req_type *)otx2_mbox_alloc_msg_rsp(		\
+		&rvu->mbox_up, devid, sizeof(struct _req_type),		\
+		sizeof(struct _rsp_type));				\
+	if (!req)							\
+		return NULL;						\
+	req->hdr.sig = OTX2_MBOX_REQ_SIG;				\
+	req->hdr.id = _id;						\
+	return req;							\
+}
+
+MBOX_UP_CGX_MESSAGES
+#undef M
+
+/* Returns bitmap of mapped PFs */
+static inline u16 cgxlmac_to_pfmap(struct rvu *rvu, u8 cgx_id, u8 lmac_id)
+{
+	return rvu->cgxlmac2pf_map[CGX_OFFSET(cgx_id) + lmac_id];
+}
+
 static inline u8 cgxlmac_id_to_bmap(u8 cgx_id, u8 lmac_id)
 {
 	return ((cgx_id & 0xF) << 4) | (lmac_id & 0xF);
@@ -77,6 +102,34 @@ static int rvu_map_cgx_lmac_pf(struct rvu *rvu)
 	return 0;
 }
 
+static int rvu_cgx_send_link_info(int cgx_id, int lmac_id, struct rvu *rvu)
+{
+	struct cgx_evq_entry *qentry;
+	unsigned long flags;
+	int err;
+
+	qentry = kmalloc(sizeof(*qentry), GFP_KERNEL);
+	if (!qentry)
+		return -ENOMEM;
+
+	/* Lock the event queue before we read the local link status */
+	spin_lock_irqsave(&rvu->cgx_evq_lock, flags);
+	err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
+				&qentry->link_event.link_uinfo);
+	qentry->link_event.cgx_id = cgx_id;
+	qentry->link_event.lmac_id = lmac_id;
+	if (err)
+		goto skip_add;
+	list_add_tail(&qentry->evq_node, &rvu->cgx_evq_head);
+skip_add:
+	spin_unlock_irqrestore(&rvu->cgx_evq_lock, flags);
+
+	/* start worker to process the events */
+	queue_work(rvu->cgx_evh_wq, &rvu->cgx_evh_work);
+
+	return 0;
+}
+
 /* This is called from interrupt context and is expected to be atomic */
 static int cgx_lmac_postevent(struct cgx_link_event *event, void *data)
 {
@@ -98,6 +151,41 @@ static int cgx_lmac_postevent(struct cgx_link_event *event, void *data)
 	return 0;
 }
 
+static void cgx_notify_pfs(struct cgx_link_event *event, struct rvu *rvu)
+{
+	struct cgx_link_user_info *linfo;
+	struct cgx_link_info_msg *msg;
+	unsigned long pfmap;
+	int err, pfid;
+
+	linfo = &event->link_uinfo;
+	pfmap = cgxlmac_to_pfmap(rvu, event->cgx_id, event->lmac_id);
+
+	do {
+		pfid = find_first_bit(&pfmap, 16);
+		clear_bit(pfid, &pfmap);
+
+		/* check if notification is enabled */
+		if (!test_bit(pfid, &rvu->pf_notify_bmap)) {
+			dev_info(rvu->dev, "cgx %d: lmac %d Link status %s\n",
+				 event->cgx_id, event->lmac_id,
+				 linfo->link_up ? "UP" : "DOWN");
+			continue;
+		}
+
+		/* Send mbox message to PF */
+		msg = otx2_mbox_alloc_msg_CGX_LINK_EVENT(rvu, pfid);
+		if (!msg)
+			continue;
+		msg->link_info = *linfo;
+		otx2_mbox_msg_send(&rvu->mbox_up, pfid);
+		err = otx2_mbox_wait_for_rsp(&rvu->mbox_up, pfid);
+		if (err)
+			dev_warn(rvu->dev, "notification to pf %d failed\n",
+				 pfid);
+	} while (pfmap);
+}
+
 static void cgx_evhandler_task(struct work_struct *work)
 {
 	struct rvu *rvu = container_of(work, struct rvu, cgx_evh_work);
@@ -119,7 +207,8 @@ static void cgx_evhandler_task(struct work_struct *work)
 
 		event = &qentry->link_event;
 
-		/* Do nothing for now */
+		/* process event */
+		cgx_notify_pfs(event, rvu);
 		kfree(qentry);
 	} while (1);
 }
@@ -334,3 +423,59 @@ int rvu_mbox_handler_CGX_PROMISC_DISABLE(struct rvu *rvu, struct msg_req *req,
 	cgx_lmac_promisc_config(cgx_id, lmac_id, false);
 	return 0;
 }
+
+static int rvu_cgx_config_linkevents(struct rvu *rvu, u16 pcifunc, bool en)
+{
+	int pf = rvu_get_pf(pcifunc);
+	u8 cgx_id, lmac_id;
+
+	/* This msg is expected only from PFs that are mapped to CGX LMACs,
+	 * if received from other PF/VF simply ACK, nothing to do.
+	 */
+	if ((pcifunc & RVU_PFVF_FUNC_MASK) || !is_pf_cgxmapped(rvu, pf))
+		return -ENODEV;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
+
+	if (en) {
+		set_bit(pf, &rvu->pf_notify_bmap);
+		/* Send the current link status to PF */
+		rvu_cgx_send_link_info(cgx_id, lmac_id, rvu);
+	} else {
+		clear_bit(pf, &rvu->pf_notify_bmap);
+	}
+
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_START_LINKEVENTS(struct rvu *rvu, struct msg_req *req,
+					  struct msg_rsp *rsp)
+{
+	rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, true);
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_STOP_LINKEVENTS(struct rvu *rvu, struct msg_req *req,
+					 struct msg_rsp *rsp)
+{
+	rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, false);
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_GET_LINKINFO(struct rvu *rvu, struct msg_req *req,
+				      struct cgx_link_info_msg *rsp)
+{
+	u8 cgx_id, lmac_id;
+	int pf, err;
+
+	pf = rvu_get_pf(req->hdr.pcifunc);
+
+	if (!is_pf_cgxmapped(rvu, pf))
+		return -ENODEV;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
+
+	err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
+				&rsp->link_info);
+	return err;
+}

From 23999b30ae67a1baef78ed5b2c3edb6928fcb225 Mon Sep 17 00:00:00 2001
From: Geetha sowjanya <gakula@marvell.com>
Date: Tue, 16 Oct 2018 16:57:10 +0530
Subject: [PATCH 06/16] octeontx2-af: Enable or disable CGX internal loopback

Add support to enable or disable internal loopback mode in CGX.
New mbox IDs CGX_INTLBK_ENABLE/DISABLE added for this.

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Linu Cherian <lcherian@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/marvell/octeontx2/af/cgx.c   | 30 ++++++++++++++++++
 .../net/ethernet/marvell/octeontx2/af/cgx.h   |  5 +++
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  2 ++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |  4 +++
 .../ethernet/marvell/octeontx2/af/rvu_cgx.c   | 31 +++++++++++++++++++
 5 files changed, 72 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
index 077f83f4f2f0..352501b54aee 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c
@@ -194,6 +194,36 @@ static inline u8 cgx_get_lmac_type(struct cgx *cgx, int lmac_id)
 	return (cfg >> CGX_LMAC_TYPE_SHIFT) & CGX_LMAC_TYPE_MASK;
 }
 
+/* Configure CGX LMAC in internal loopback mode */
+int cgx_lmac_internal_loopback(void *cgxd, int lmac_id, bool enable)
+{
+	struct cgx *cgx = cgxd;
+	u8 lmac_type;
+	u64 cfg;
+
+	if (!cgx || lmac_id >= cgx->lmac_count)
+		return -ENODEV;
+
+	lmac_type = cgx_get_lmac_type(cgx, lmac_id);
+	if (lmac_type == LMAC_MODE_SGMII || lmac_type == LMAC_MODE_QSGMII) {
+		cfg = cgx_read(cgx, lmac_id, CGXX_GMP_PCS_MRX_CTL);
+		if (enable)
+			cfg |= CGXX_GMP_PCS_MRX_CTL_LBK;
+		else
+			cfg &= ~CGXX_GMP_PCS_MRX_CTL_LBK;
+		cgx_write(cgx, lmac_id, CGXX_GMP_PCS_MRX_CTL, cfg);
+	} else {
+		cfg = cgx_read(cgx, lmac_id, CGXX_SPUX_CONTROL1);
+		if (enable)
+			cfg |= CGXX_SPUX_CONTROL1_LBK;
+		else
+			cfg &= ~CGXX_SPUX_CONTROL1_LBK;
+		cgx_write(cgx, lmac_id, CGXX_SPUX_CONTROL1, cfg);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(cgx_lmac_internal_loopback);
+
 void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable)
 {
 	struct cgx *cgx = cgx_get_pdata(cgx_id);
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
index c89edfaacbe6..ada25ed0765b 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
@@ -50,6 +50,10 @@
 #define CGXX_SCRATCH0_REG		0x1050
 #define CGXX_SCRATCH1_REG		0x1058
 #define CGX_CONST			0x2000
+#define CGXX_SPUX_CONTROL1		0x10000
+#define  CGXX_SPUX_CONTROL1_LBK			BIT_ULL(14)
+#define CGXX_GMP_PCS_MRX_CTL		0x30000
+#define  CGXX_GMP_PCS_MRX_CTL_LBK		BIT_ULL(14)
 
 #define CGX_COMMAND_REG			CGXX_SCRATCH1_REG
 #define CGX_EVENT_REG			CGXX_SCRATCH0_REG
@@ -100,6 +104,7 @@ int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable);
 int cgx_lmac_addr_set(u8 cgx_id, u8 lmac_id, u8 *mac_addr);
 u64 cgx_lmac_addr_get(u8 cgx_id, u8 lmac_id);
 void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable);
+int cgx_lmac_internal_loopback(void *cgxd, int lmac_id, bool enable);
 int cgx_get_link_info(void *cgxd, int lmac_id,
 		      struct cgx_link_user_info *linfo);
 #endif /* CGX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 9f3790b507a6..be1cb16c18e0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -136,6 +136,8 @@ M(CGX_PROMISC_DISABLE,	0x206, msg_req, msg_rsp)			\
 M(CGX_START_LINKEVENTS, 0x207, msg_req, msg_rsp)			\
 M(CGX_STOP_LINKEVENTS,	0x208, msg_req, msg_rsp)			\
 M(CGX_GET_LINKINFO,	0x209, msg_req, cgx_link_info_msg)		\
+M(CGX_INTLBK_ENABLE,	0x20A, msg_req, msg_rsp)			\
+M(CGX_INTLBK_DISABLE,	0x20B, msg_req, msg_rsp)			\
 /* NPA mbox IDs (range 0x400 - 0x5FF) */				\
 /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
 /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 83478086ddb8..88454cb90bb4 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -192,4 +192,8 @@ int rvu_mbox_handler_CGX_STOP_LINKEVENTS(struct rvu *rvu, struct msg_req *req,
 					 struct msg_rsp *rsp);
 int rvu_mbox_handler_CGX_GET_LINKINFO(struct rvu *rvu, struct msg_req *req,
 				      struct cgx_link_info_msg *rsp);
+int rvu_mbox_handler_CGX_INTLBK_ENABLE(struct rvu *rvu, struct msg_req *req,
+				       struct msg_rsp *rsp);
+int rvu_mbox_handler_CGX_INTLBK_DISABLE(struct rvu *rvu, struct msg_req *req,
+					struct msg_rsp *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index e917f28b220c..e0aee2176637 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -479,3 +479,34 @@ int rvu_mbox_handler_CGX_GET_LINKINFO(struct rvu *rvu, struct msg_req *req,
 				&rsp->link_info);
 	return err;
 }
+
+static int rvu_cgx_config_intlbk(struct rvu *rvu, u16 pcifunc, bool en)
+{
+	int pf = rvu_get_pf(pcifunc);
+	u8 cgx_id, lmac_id;
+
+	/* This msg is expected only from PFs that are mapped to CGX LMACs,
+	 * if received from other PF/VF simply ACK, nothing to do.
+	 */
+	if ((pcifunc & RVU_PFVF_FUNC_MASK) || !is_pf_cgxmapped(rvu, pf))
+		return -ENODEV;
+
+	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
+
+	return cgx_lmac_internal_loopback(rvu_cgx_pdata(cgx_id, rvu),
+					  lmac_id, en);
+}
+
+int rvu_mbox_handler_CGX_INTLBK_ENABLE(struct rvu *rvu, struct msg_req *req,
+				       struct msg_rsp *rsp)
+{
+	rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, true);
+	return 0;
+}
+
+int rvu_mbox_handler_CGX_INTLBK_DISABLE(struct rvu *rvu, struct msg_req *req,
+					struct msg_rsp *rsp)
+{
+	rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, false);
+	return 0;
+}

From 7a37245ef23f75223263930e086aa0a8678e161f Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:11 +0530
Subject: [PATCH 07/16] octeontx2-af: NPA block admin queue init

Initialize NPA admin queue (AQ) i.e alloc memory for
AQ instructions and for the results. All NPA LFs will submit
instructions to AQ to init/write/read Aura/Pool contexts
and in case of read, get context from result memory.

Added some common APIs for allocating memory for a queue
and get IOVA in return, these APIs will be used by
NIX AQ and for other purposes.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../ethernet/marvell/octeontx2/af/Makefile    |  2 +-
 .../ethernet/marvell/octeontx2/af/common.h    | 99 +++++++++++++++++++
 .../net/ethernet/marvell/octeontx2/af/rvu.c   | 46 +++++++++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   | 13 ++-
 .../ethernet/marvell/octeontx2/af/rvu_npa.c   | 86 ++++++++++++++++
 .../marvell/octeontx2/af/rvu_struct.h         | 65 ++++++++++++
 6 files changed, 309 insertions(+), 2 deletions(-)
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/common.h
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/Makefile b/drivers/net/ethernet/marvell/octeontx2/af/Makefile
index eaac26424486..bdb4f98572a0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/Makefile
+++ b/drivers/net/ethernet/marvell/octeontx2/af/Makefile
@@ -7,4 +7,4 @@ obj-$(CONFIG_OCTEONTX2_MBOX) += octeontx2_mbox.o
 obj-$(CONFIG_OCTEONTX2_AF) += octeontx2_af.o
 
 octeontx2_mbox-y := mbox.o
-octeontx2_af-y := cgx.o rvu.o rvu_cgx.o
+octeontx2_af-y := cgx.o rvu.o rvu_cgx.o rvu_npa.o
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h
new file mode 100644
index 000000000000..ec493bad33fc
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Marvell OcteonTx2 RVU Admin Function driver
+ *
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef COMMON_H
+#define COMMON_H
+
+#include "rvu_struct.h"
+
+#define OTX2_ALIGN			128  /* Align to cacheline */
+
+#define Q_SIZE_16		0ULL /* 16 entries */
+#define Q_SIZE_64		1ULL /* 64 entries */
+#define Q_SIZE_256		2ULL
+#define Q_SIZE_1K		3ULL
+#define Q_SIZE_4K		4ULL
+#define Q_SIZE_16K		5ULL
+#define Q_SIZE_64K		6ULL
+#define Q_SIZE_256K		7ULL
+#define Q_SIZE_1M		8ULL /* Million entries */
+#define Q_SIZE_MIN		Q_SIZE_16
+#define Q_SIZE_MAX		Q_SIZE_1M
+
+#define Q_COUNT(x)		(16ULL << (2 * x))
+#define Q_SIZE(x, n)		((ilog2(x) - (n)) / 2)
+
+/* Admin queue info */
+
+/* Since we intend to add only one instruction at a time,
+ * keep queue size to it's minimum.
+ */
+#define AQ_SIZE			Q_SIZE_16
+/* HW head & tail pointer mask */
+#define AQ_PTR_MASK		0xFFFFF
+
+struct qmem {
+	void            *base;
+	dma_addr_t	iova;
+	int		alloc_sz;
+	u8		entry_sz;
+	u8		align;
+	u32		qsize;
+};
+
+static inline int qmem_alloc(struct device *dev, struct qmem **q,
+			     int qsize, int entry_sz)
+{
+	struct qmem *qmem;
+	int aligned_addr;
+
+	if (!qsize)
+		return -EINVAL;
+
+	*q = devm_kzalloc(dev, sizeof(*qmem), GFP_KERNEL);
+	if (!*q)
+		return -ENOMEM;
+	qmem = *q;
+
+	qmem->entry_sz = entry_sz;
+	qmem->alloc_sz = (qsize * entry_sz) + OTX2_ALIGN;
+	qmem->base = dma_zalloc_coherent(dev, qmem->alloc_sz,
+					 &qmem->iova, GFP_KERNEL);
+	if (!qmem->base)
+		return -ENOMEM;
+
+	qmem->qsize = qsize;
+
+	aligned_addr = ALIGN((u64)qmem->iova, OTX2_ALIGN);
+	qmem->align = (aligned_addr - qmem->iova);
+	qmem->base += qmem->align;
+	qmem->iova += qmem->align;
+	return 0;
+}
+
+static inline void qmem_free(struct device *dev, struct qmem *qmem)
+{
+	if (!qmem)
+		return;
+
+	if (qmem->base)
+		dma_free_coherent(dev, qmem->alloc_sz,
+				  qmem->base - qmem->align,
+				  qmem->iova - qmem->align);
+	devm_kfree(dev, qmem);
+}
+
+struct admin_queue {
+	struct qmem	*inst;
+	struct qmem	*res;
+	spinlock_t	lock; /* Serialize inst enqueue from PFs */
+};
+
+#endif /* COMMON_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
index 85994ab3ed17..14255f2a78db 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
@@ -552,6 +552,8 @@ static void rvu_free_hw_resources(struct rvu *rvu)
 	int id, max_msix;
 	u64 cfg;
 
+	rvu_npa_freemem(rvu);
+
 	/* Free block LF bitmaps */
 	for (id = 0; id < BLK_COUNT; id++) {
 		block = &hw->block[id];
@@ -755,6 +757,50 @@ static int rvu_setup_hw_resources(struct rvu *rvu)
 		rvu_scan_block(rvu, block);
 	}
 
+	err = rvu_npa_init(rvu);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+/* NPA and NIX admin queue APIs */
+void rvu_aq_free(struct rvu *rvu, struct admin_queue *aq)
+{
+	if (!aq)
+		return;
+
+	qmem_free(rvu->dev, aq->inst);
+	qmem_free(rvu->dev, aq->res);
+	devm_kfree(rvu->dev, aq);
+}
+
+int rvu_aq_alloc(struct rvu *rvu, struct admin_queue **ad_queue,
+		 int qsize, int inst_size, int res_size)
+{
+	struct admin_queue *aq;
+	int err;
+
+	*ad_queue = devm_kzalloc(rvu->dev, sizeof(*aq), GFP_KERNEL);
+	if (!*ad_queue)
+		return -ENOMEM;
+	aq = *ad_queue;
+
+	/* Alloc memory for instructions i.e AQ */
+	err = qmem_alloc(rvu->dev, &aq->inst, qsize, inst_size);
+	if (err) {
+		devm_kfree(rvu->dev, aq);
+		return err;
+	}
+
+	/* Alloc memory for results */
+	err = qmem_alloc(rvu->dev, &aq->res, qsize, res_size);
+	if (err) {
+		rvu_aq_free(rvu, aq);
+		return err;
+	}
+
+	spin_lock_init(&aq->lock);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 88454cb90bb4..999dc2c3a03c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -12,6 +12,7 @@
 #define RVU_H
 
 #include "rvu_struct.h"
+#include "common.h"
 #include "mbox.h"
 
 /* PCI device IDs */
@@ -41,7 +42,8 @@ struct rsrc_bmap {
 };
 
 struct rvu_block {
-	struct rsrc_bmap lf;
+	struct rsrc_bmap	lf;
+	struct admin_queue	*aq; /* NIX/NPA AQ */
 	u16  *fn_map; /* LF to pcifunc mapping */
 	bool multislot;
 	bool implemented;
@@ -155,6 +157,11 @@ int rvu_get_lf(struct rvu *rvu, struct rvu_block *block, u16 pcifunc, u16 slot);
 int rvu_get_blkaddr(struct rvu *rvu, int blktype, u16 pcifunc);
 int rvu_poll_reg(struct rvu *rvu, u64 block, u64 offset, u64 mask, bool zero);
 
+/* NPA/NIX AQ APIs */
+int rvu_aq_alloc(struct rvu *rvu, struct admin_queue **ad_queue,
+		 int qsize, int inst_size, int res_size);
+void rvu_aq_free(struct rvu *rvu, struct admin_queue *aq);
+
 /* CGX APIs */
 static inline bool is_pf_cgxmapped(struct rvu *rvu, u8 pf)
 {
@@ -196,4 +203,8 @@ int rvu_mbox_handler_CGX_INTLBK_ENABLE(struct rvu *rvu, struct msg_req *req,
 				       struct msg_rsp *rsp);
 int rvu_mbox_handler_CGX_INTLBK_DISABLE(struct rvu *rvu, struct msg_req *req,
 					struct msg_rsp *rsp);
+
+/* NPA APIs */
+int rvu_npa_init(struct rvu *rvu);
+int rvu_npa_freemem(struct rvu *rvu);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
new file mode 100644
index 000000000000..506e6ae50c9c
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell OcteonTx2 RVU Admin Function driver
+ *
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "rvu_struct.h"
+#include "rvu_reg.h"
+#include "rvu.h"
+
+static int npa_aq_init(struct rvu *rvu, struct rvu_block *block)
+{
+	u64 cfg;
+	int err;
+
+	/* Set admin queue endianness */
+	cfg = rvu_read64(rvu, block->addr, NPA_AF_GEN_CFG);
+#ifdef __BIG_ENDIAN
+	cfg |= BIT_ULL(1);
+	rvu_write64(rvu, block->addr, NPA_AF_GEN_CFG, cfg);
+#else
+	cfg &= ~BIT_ULL(1);
+	rvu_write64(rvu, block->addr, NPA_AF_GEN_CFG, cfg);
+#endif
+
+	/* Do not bypass NDC cache */
+	cfg = rvu_read64(rvu, block->addr, NPA_AF_NDC_CFG);
+	cfg &= ~0x03DULL;
+	rvu_write64(rvu, block->addr, NPA_AF_NDC_CFG, cfg);
+
+	/* Result structure can be followed by Aura/Pool context at
+	 * RES + 128bytes and a write mask at RES + 256 bytes, depending on
+	 * operation type. Alloc sufficient result memory for all operations.
+	 */
+	err = rvu_aq_alloc(rvu, &block->aq,
+			   Q_COUNT(AQ_SIZE), sizeof(struct npa_aq_inst_s),
+			   ALIGN(sizeof(struct npa_aq_res_s), 128) + 256);
+	if (err)
+		return err;
+
+	rvu_write64(rvu, block->addr, NPA_AF_AQ_CFG, AQ_SIZE);
+	rvu_write64(rvu, block->addr,
+		    NPA_AF_AQ_BASE, (u64)block->aq->inst->iova);
+	return 0;
+}
+
+int rvu_npa_init(struct rvu *rvu)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	struct rvu_block *block;
+	int blkaddr, err;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0);
+	if (blkaddr < 0)
+		return 0;
+
+	block = &hw->block[blkaddr];
+
+	/* Initialize admin queue */
+	err = npa_aq_init(rvu, &hw->block[blkaddr]);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+void rvu_npa_freemem(struct rvu *rvu)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	struct rvu_block *block;
+	int blkaddr, err;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0);
+	if (blkaddr < 0)
+		return;
+
+	block = &hw->block[blkaddr];
+	rvu_aq_free(rvu, &block->aq);
+}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
index 92e05817ffe7..ae1c18d75cb6 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
@@ -71,4 +71,69 @@ enum rvu_pf_int_vec_e {
 	RVU_PF_INT_VEC_CNT	  = 0x7,
 };
 
+/* NPA admin queue completion enumeration */
+enum npa_aq_comp {
+	NPA_AQ_COMP_NOTDONE    = 0x0,
+	NPA_AQ_COMP_GOOD       = 0x1,
+	NPA_AQ_COMP_SWERR      = 0x2,
+	NPA_AQ_COMP_CTX_POISON = 0x3,
+	NPA_AQ_COMP_CTX_FAULT  = 0x4,
+	NPA_AQ_COMP_LOCKERR    = 0x5,
+};
+
+/* NPA admin queue context types */
+enum npa_aq_ctype {
+	NPA_AQ_CTYPE_AURA = 0x0,
+	NPA_AQ_CTYPE_POOL = 0x1,
+};
+
+/* NPA admin queue instruction opcodes */
+enum npa_aq_instop {
+	NPA_AQ_INSTOP_NOP    = 0x0,
+	NPA_AQ_INSTOP_INIT   = 0x1,
+	NPA_AQ_INSTOP_WRITE  = 0x2,
+	NPA_AQ_INSTOP_READ   = 0x3,
+	NPA_AQ_INSTOP_LOCK   = 0x4,
+	NPA_AQ_INSTOP_UNLOCK = 0x5,
+};
+
+/* NPA admin queue instruction structure */
+struct npa_aq_inst_s {
+#if defined(__BIG_ENDIAN_BITFIELD)
+	u64 doneint               : 1;	/* W0 */
+	u64 reserved_44_62        : 19;
+	u64 cindex                : 20;
+	u64 reserved_17_23        : 7;
+	u64 lf                    : 9;
+	u64 ctype                 : 4;
+	u64 op                    : 4;
+#else
+	u64 op                    : 4;
+	u64 ctype                 : 4;
+	u64 lf                    : 9;
+	u64 reserved_17_23        : 7;
+	u64 cindex                : 20;
+	u64 reserved_44_62        : 19;
+	u64 doneint               : 1;
+#endif
+	u64 res_addr;			/* W1 */
+};
+
+/* NPA admin queue result structure */
+struct npa_aq_res_s {
+#if defined(__BIG_ENDIAN_BITFIELD)
+	u64 reserved_17_63        : 47; /* W0 */
+	u64 doneint               : 1;
+	u64 compcode              : 8;
+	u64 ctype                 : 4;
+	u64 op                    : 4;
+#else
+	u64 op                    : 4;
+	u64 ctype                 : 4;
+	u64 compcode              : 8;
+	u64 doneint               : 1;
+	u64 reserved_17_63        : 47;
+#endif
+	u64 reserved_64_127;		/* W1 */
+};
 #endif /* RVU_STRUCT_H */

From 3fa4c3232ac9da57f1ad10ddc971f521e62edc69 Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:12 +0530
Subject: [PATCH 08/16] octeontx2-af: NPA block LF initialization

Upon receiving NPA_LF_ALLOC mbox message allocate memory for
NPALF's aura, pool and qint contexts and configure the same
to HW. Enable caching of contexts into NPA NDC.

Return pool related info like stack size, num pointers per
stack page e.t.c to the mbox msg sender.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../ethernet/marvell/octeontx2/af/common.h    |  22 +++
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  32 ++++
 .../net/ethernet/marvell/octeontx2/af/rvu.c   |  13 ++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |  13 +-
 .../ethernet/marvell/octeontx2/af/rvu_npa.c   | 137 +++++++++++++++++-
 5 files changed, 214 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h
index ec493bad33fc..c64d241f4df5 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h
@@ -96,4 +96,26 @@ struct admin_queue {
 	spinlock_t	lock; /* Serialize inst enqueue from PFs */
 };
 
+/* NPA aura count */
+enum npa_aura_sz {
+	NPA_AURA_SZ_0,
+	NPA_AURA_SZ_128,
+	NPA_AURA_SZ_256,
+	NPA_AURA_SZ_512,
+	NPA_AURA_SZ_1K,
+	NPA_AURA_SZ_2K,
+	NPA_AURA_SZ_4K,
+	NPA_AURA_SZ_8K,
+	NPA_AURA_SZ_16K,
+	NPA_AURA_SZ_32K,
+	NPA_AURA_SZ_64K,
+	NPA_AURA_SZ_128K,
+	NPA_AURA_SZ_256K,
+	NPA_AURA_SZ_512K,
+	NPA_AURA_SZ_1M,
+	NPA_AURA_SZ_MAX,
+};
+
+#define NPA_AURA_COUNT(x)	(1ULL << ((x) + 6))
+
 #endif /* COMMON_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index be1cb16c18e0..8135339457f2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -139,6 +139,8 @@ M(CGX_GET_LINKINFO,	0x209, msg_req, cgx_link_info_msg)		\
 M(CGX_INTLBK_ENABLE,	0x20A, msg_req, msg_rsp)			\
 M(CGX_INTLBK_DISABLE,	0x20B, msg_req, msg_rsp)			\
 /* NPA mbox IDs (range 0x400 - 0x5FF) */				\
+M(NPA_LF_ALLOC,		0x400, npa_lf_alloc_req, npa_lf_alloc_rsp)	\
+M(NPA_LF_FREE,		0x401, msg_req, msg_rsp)			\
 /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
 /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
 /* CPT mbox IDs (range 0xA00 - 0xBFF) */				\
@@ -258,4 +260,34 @@ struct cgx_link_info_msg {
 	struct mbox_msghdr hdr;
 	struct cgx_link_user_info link_info;
 };
+
+/* NPA mbox message formats */
+
+/* NPA mailbox error codes
+ * Range 301 - 400.
+ */
+enum npa_af_status {
+	NPA_AF_ERR_PARAM            = -301,
+	NPA_AF_ERR_AQ_FULL          = -302,
+	NPA_AF_ERR_AQ_ENQUEUE       = -303,
+	NPA_AF_ERR_AF_LF_INVALID    = -304,
+	NPA_AF_ERR_AF_LF_ALLOC      = -305,
+	NPA_AF_ERR_LF_RESET         = -306,
+};
+
+/* For NPA LF context alloc and init */
+struct npa_lf_alloc_req {
+	struct mbox_msghdr hdr;
+	int node;
+	int aura_sz;  /* No of auras */
+	u32 nr_pools; /* No of pools */
+};
+
+struct npa_lf_alloc_rsp {
+	struct mbox_msghdr hdr;
+	u32 stack_pg_ptrs;  /* No of ptrs per stack page */
+	u32 stack_pg_bytes; /* Size of stack page */
+	u16 qints; /* NPA_AF_CONST::QINTS */
+};
+
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
index 14255f2a78db..5d4917c41d51 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
@@ -361,6 +361,19 @@ static void rvu_check_block_implemented(struct rvu *rvu)
 	}
 }
 
+int rvu_lf_reset(struct rvu *rvu, struct rvu_block *block, int lf)
+{
+	int err;
+
+	if (!block->implemented)
+		return 0;
+
+	rvu_write64(rvu, block->addr, block->lfreset_reg, lf | BIT_ULL(12));
+	err = rvu_poll_reg(rvu, block->addr, block->lfreset_reg, BIT_ULL(12),
+			   true);
+	return err;
+}
+
 static void rvu_block_reset(struct rvu *rvu, int blkaddr, u64 rst_reg)
 {
 	struct rvu_block *block = &rvu->hw->block[blkaddr];
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 999dc2c3a03c..b32d1f1d7266 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -72,6 +72,11 @@ struct rvu_pfvf {
 	struct rsrc_bmap msix;      /* Bitmap for MSIX vector alloc */
 #define MSIX_BLKLF(blkaddr, lf) (((blkaddr) << 8) | ((lf) & 0xFF))
 	u16		 *msix_lfmap; /* Vector to block LF mapping */
+
+	/* NPA contexts */
+	struct qmem	*aura_ctx;
+	struct qmem	*pool_ctx;
+	struct qmem	*npa_qints_ctx;
 };
 
 struct rvu_hwinfo {
@@ -154,6 +159,7 @@ struct rvu_pfvf *rvu_get_pfvf(struct rvu *rvu, int pcifunc);
 void rvu_get_pf_numvfs(struct rvu *rvu, int pf, int *numvfs, int *hwvf);
 bool is_block_implemented(struct rvu_hwinfo *hw, int blkaddr);
 int rvu_get_lf(struct rvu *rvu, struct rvu_block *block, u16 pcifunc, u16 slot);
+int rvu_lf_reset(struct rvu *rvu, struct rvu_block *block, int lf);
 int rvu_get_blkaddr(struct rvu *rvu, int blktype, u16 pcifunc);
 int rvu_poll_reg(struct rvu *rvu, u64 block, u64 offset, u64 mask, bool zero);
 
@@ -206,5 +212,10 @@ int rvu_mbox_handler_CGX_INTLBK_DISABLE(struct rvu *rvu, struct msg_req *req,
 
 /* NPA APIs */
 int rvu_npa_init(struct rvu *rvu);
-int rvu_npa_freemem(struct rvu *rvu);
+void rvu_npa_freemem(struct rvu *rvu);
+int rvu_mbox_handler_NPA_LF_ALLOC(struct rvu *rvu,
+				  struct npa_lf_alloc_req *req,
+				  struct npa_lf_alloc_rsp *rsp);
+int rvu_mbox_handler_NPA_LF_FREE(struct rvu *rvu, struct msg_req *req,
+				 struct msg_rsp *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
index 506e6ae50c9c..ea0c5e0878e4 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
@@ -15,6 +15,139 @@
 #include "rvu_reg.h"
 #include "rvu.h"
 
+static void npa_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
+{
+	qmem_free(rvu->dev, pfvf->aura_ctx);
+	pfvf->aura_ctx = NULL;
+
+	qmem_free(rvu->dev, pfvf->pool_ctx);
+	pfvf->pool_ctx = NULL;
+
+	qmem_free(rvu->dev, pfvf->npa_qints_ctx);
+	pfvf->npa_qints_ctx = NULL;
+}
+
+int rvu_mbox_handler_NPA_LF_ALLOC(struct rvu *rvu,
+				  struct npa_lf_alloc_req *req,
+				  struct npa_lf_alloc_rsp *rsp)
+{
+	int npalf, qints, hwctx_size, err, rc = 0;
+	struct rvu_hwinfo *hw = rvu->hw;
+	u16 pcifunc = req->hdr.pcifunc;
+	struct rvu_block *block;
+	struct rvu_pfvf *pfvf;
+	u64 cfg, ctx_cfg;
+	int blkaddr;
+
+	if (req->aura_sz > NPA_AURA_SZ_MAX ||
+	    req->aura_sz == NPA_AURA_SZ_0 || !req->nr_pools)
+		return NPA_AF_ERR_PARAM;
+
+	pfvf = rvu_get_pfvf(rvu, pcifunc);
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, pcifunc);
+	if (!pfvf->npalf || blkaddr < 0)
+		return NPA_AF_ERR_AF_LF_INVALID;
+
+	block = &hw->block[blkaddr];
+	npalf = rvu_get_lf(rvu, block, pcifunc, 0);
+	if (npalf < 0)
+		return NPA_AF_ERR_AF_LF_INVALID;
+
+	/* Reset this NPA LF */
+	err = rvu_lf_reset(rvu, block, npalf);
+	if (err) {
+		dev_err(rvu->dev, "Failed to reset NPALF%d\n", npalf);
+		return NPA_AF_ERR_LF_RESET;
+	}
+
+	ctx_cfg = rvu_read64(rvu, blkaddr, NPA_AF_CONST1);
+
+	/* Alloc memory for aura HW contexts */
+	hwctx_size = 1UL << (ctx_cfg & 0xF);
+	err = qmem_alloc(rvu->dev, &pfvf->aura_ctx,
+			 NPA_AURA_COUNT(req->aura_sz), hwctx_size);
+	if (err)
+		goto free_mem;
+
+	/* Alloc memory for pool HW contexts */
+	hwctx_size = 1UL << ((ctx_cfg >> 4) & 0xF);
+	err = qmem_alloc(rvu->dev, &pfvf->pool_ctx, req->nr_pools, hwctx_size);
+	if (err)
+		goto free_mem;
+
+	/* Get no of queue interrupts supported */
+	cfg = rvu_read64(rvu, blkaddr, NPA_AF_CONST);
+	qints = (cfg >> 28) & 0xFFF;
+
+	/* Alloc memory for Qints HW contexts */
+	hwctx_size = 1UL << ((ctx_cfg >> 8) & 0xF);
+	err = qmem_alloc(rvu->dev, &pfvf->npa_qints_ctx, qints, hwctx_size);
+	if (err)
+		goto free_mem;
+
+	cfg = rvu_read64(rvu, blkaddr, NPA_AF_LFX_AURAS_CFG(npalf));
+	/* Clear way partition mask and set aura offset to '0' */
+	cfg &= ~(BIT_ULL(34) - 1);
+	/* Set aura size & enable caching of contexts */
+	cfg |= (req->aura_sz << 16) | BIT_ULL(34);
+	rvu_write64(rvu, blkaddr, NPA_AF_LFX_AURAS_CFG(npalf), cfg);
+
+	/* Configure aura HW context's base */
+	rvu_write64(rvu, blkaddr, NPA_AF_LFX_LOC_AURAS_BASE(npalf),
+		    (u64)pfvf->aura_ctx->iova);
+
+	/* Enable caching of qints hw context */
+	rvu_write64(rvu, blkaddr, NPA_AF_LFX_QINTS_CFG(npalf), BIT_ULL(36));
+	rvu_write64(rvu, blkaddr, NPA_AF_LFX_QINTS_BASE(npalf),
+		    (u64)pfvf->npa_qints_ctx->iova);
+
+	goto exit;
+
+free_mem:
+	npa_ctx_free(rvu, pfvf);
+	rc = -ENOMEM;
+
+exit:
+	/* set stack page info */
+	cfg = rvu_read64(rvu, blkaddr, NPA_AF_CONST);
+	rsp->stack_pg_ptrs = (cfg >> 8) & 0xFF;
+	rsp->stack_pg_bytes = cfg & 0xFF;
+	rsp->qints = (cfg >> 28) & 0xFFF;
+	return rc;
+}
+
+int rvu_mbox_handler_NPA_LF_FREE(struct rvu *rvu, struct msg_req *req,
+				 struct msg_rsp *rsp)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	u16 pcifunc = req->hdr.pcifunc;
+	struct rvu_block *block;
+	struct rvu_pfvf *pfvf;
+	int npalf, err;
+	int blkaddr;
+
+	pfvf = rvu_get_pfvf(rvu, pcifunc);
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, pcifunc);
+	if (!pfvf->npalf || blkaddr < 0)
+		return NPA_AF_ERR_AF_LF_INVALID;
+
+	block = &hw->block[blkaddr];
+	npalf = rvu_get_lf(rvu, block, pcifunc, 0);
+	if (npalf < 0)
+		return NPA_AF_ERR_AF_LF_INVALID;
+
+	/* Reset this NPA LF */
+	err = rvu_lf_reset(rvu, block, npalf);
+	if (err) {
+		dev_err(rvu->dev, "Failed to reset NPALF%d\n", npalf);
+		return NPA_AF_ERR_LF_RESET;
+	}
+
+	npa_ctx_free(rvu, pfvf);
+
+	return 0;
+}
+
 static int npa_aq_init(struct rvu *rvu, struct rvu_block *block)
 {
 	u64 cfg;
@@ -75,12 +208,12 @@ void rvu_npa_freemem(struct rvu *rvu)
 {
 	struct rvu_hwinfo *hw = rvu->hw;
 	struct rvu_block *block;
-	int blkaddr, err;
+	int blkaddr;
 
 	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0);
 	if (blkaddr < 0)
 		return;
 
 	block = &hw->block[blkaddr];
-	rvu_aq_free(rvu, &block->aq);
+	rvu_aq_free(rvu, block->aq);
 }

From 4a3581cd5995d86721b3a38e1e2799b2137b4d77 Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:13 +0530
Subject: [PATCH 09/16] octeontx2-af: NPA AQ instruction enqueue support

Add support for a RVU PF/VF to submit instructions to NPA AQ
via mbox. Instructions can be to init/write/read Aura/Pool/Qint
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>
---
 .../ethernet/marvell/octeontx2/af/common.h    |  13 ++
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  35 +++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |   3 +
 .../ethernet/marvell/octeontx2/af/rvu_npa.c   | 158 +++++++++++++
 .../marvell/octeontx2/af/rvu_struct.h         | 218 ++++++++++++++++++
 5 files changed, 427 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h
index c64d241f4df5..24021cb110e8 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h
@@ -118,4 +118,17 @@ enum npa_aura_sz {
 
 #define NPA_AURA_COUNT(x)	(1ULL << ((x) + 6))
 
+/* NPA AQ result structure for init/read/write of aura HW contexts */
+struct npa_aq_aura_res {
+	struct	npa_aq_res_s	res;
+	struct	npa_aura_s	aura_ctx;
+	struct	npa_aura_s	ctx_mask;
+};
+
+/* NPA AQ result structure for init/read/write of pool HW contexts */
+struct npa_aq_pool_res {
+	struct	npa_aq_res_s	res;
+	struct	npa_pool_s	pool_ctx;
+	struct	npa_pool_s	ctx_mask;
+};
 #endif /* COMMON_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 8135339457f2..bf11058ac30c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -141,6 +141,7 @@ M(CGX_INTLBK_DISABLE,	0x20B, msg_req, msg_rsp)			\
 /* NPA mbox IDs (range 0x400 - 0x5FF) */				\
 M(NPA_LF_ALLOC,		0x400, npa_lf_alloc_req, npa_lf_alloc_rsp)	\
 M(NPA_LF_FREE,		0x401, msg_req, msg_rsp)			\
+M(NPA_AQ_ENQ,		0x402, npa_aq_enq_req, npa_aq_enq_rsp)		\
 /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
 /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
 /* CPT mbox IDs (range 0xA00 - 0xBFF) */				\
@@ -290,4 +291,38 @@ struct npa_lf_alloc_rsp {
 	u16 qints; /* NPA_AF_CONST::QINTS */
 };
 
+/* NPA AQ enqueue msg */
+struct npa_aq_enq_req {
+	struct mbox_msghdr hdr;
+	u32 aura_id;
+	u8 ctype;
+	u8 op;
+	union {
+		/* Valid when op == WRITE/INIT and ctype == AURA.
+		 * LF fills the pool_id in aura.pool_addr. AF will translate
+		 * the pool_id to pool context pointer.
+		 */
+		struct npa_aura_s aura;
+		/* Valid when op == WRITE/INIT and ctype == POOL */
+		struct npa_pool_s pool;
+	};
+	/* Mask data when op == WRITE (1=write, 0=don't write) */
+	union {
+		/* Valid when op == WRITE and ctype == AURA */
+		struct npa_aura_s aura_mask;
+		/* Valid when op == WRITE and ctype == POOL */
+		struct npa_pool_s pool_mask;
+	};
+};
+
+struct npa_aq_enq_rsp {
+	struct mbox_msghdr hdr;
+	union {
+		/* Valid when op == READ and ctype == AURA */
+		struct npa_aura_s aura;
+		/* Valid when op == READ and ctype == POOL */
+		struct npa_pool_s pool;
+	};
+};
+
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index b32d1f1d7266..a70c26bfe746 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -213,6 +213,9 @@ int rvu_mbox_handler_CGX_INTLBK_DISABLE(struct rvu *rvu, struct msg_req *req,
 /* NPA APIs */
 int rvu_npa_init(struct rvu *rvu);
 void rvu_npa_freemem(struct rvu *rvu);
+int rvu_mbox_handler_NPA_AQ_ENQ(struct rvu *rvu,
+				struct npa_aq_enq_req *req,
+				struct npa_aq_enq_rsp *rsp);
 int rvu_mbox_handler_NPA_LF_ALLOC(struct rvu *rvu,
 				  struct npa_lf_alloc_req *req,
 				  struct npa_lf_alloc_rsp *rsp);
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
index ea0c5e0878e4..4ff0e760eeb2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
@@ -15,6 +15,164 @@
 #include "rvu_reg.h"
 #include "rvu.h"
 
+static int npa_aq_enqueue_wait(struct rvu *rvu, struct rvu_block *block,
+			       struct npa_aq_inst_s *inst)
+{
+	struct admin_queue *aq = block->aq;
+	struct npa_aq_res_s *result;
+	int timeout = 1000;
+	u64 reg, head;
+
+	result = (struct npa_aq_res_s *)aq->res->base;
+
+	/* Get current head pointer where to append this instruction */
+	reg = rvu_read64(rvu, block->addr, NPA_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, NPA_AF_AQ_DOOR, 1);
+	while (result->compcode == NPA_AQ_COMP_NOTDONE) {
+		cpu_relax();
+		udelay(1);
+		timeout--;
+		if (!timeout)
+			return -EBUSY;
+	}
+
+	if (result->compcode != NPA_AQ_COMP_GOOD)
+		/* TODO: Replace this with some error code */
+		return -EBUSY;
+
+	return 0;
+}
+
+static int rvu_npa_aq_enq_inst(struct rvu *rvu, struct npa_aq_enq_req *req,
+			       struct npa_aq_enq_rsp *rsp)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	u16 pcifunc = req->hdr.pcifunc;
+	int blkaddr, npalf, rc = 0;
+	struct npa_aq_inst_s inst;
+	struct rvu_block *block;
+	struct admin_queue *aq;
+	struct rvu_pfvf *pfvf;
+	void *ctx, *mask;
+
+	pfvf = rvu_get_pfvf(rvu, pcifunc);
+	if (!pfvf->aura_ctx || req->aura_id >= pfvf->aura_ctx->qsize)
+		return NPA_AF_ERR_AQ_ENQUEUE;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, pcifunc);
+	if (!pfvf->npalf || blkaddr < 0)
+		return NPA_AF_ERR_AF_LF_INVALID;
+
+	block = &hw->block[blkaddr];
+	aq = block->aq;
+	if (!aq) {
+		dev_warn(rvu->dev, "%s: NPA AQ not initialized\n", __func__);
+		return NPA_AF_ERR_AQ_ENQUEUE;
+	}
+
+	npalf = rvu_get_lf(rvu, block, pcifunc, 0);
+	if (npalf < 0)
+		return NPA_AF_ERR_AF_LF_INVALID;
+
+	memset(&inst, 0, sizeof(struct npa_aq_inst_s));
+	inst.cindex = req->aura_id;
+	inst.lf = npalf;
+	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 NPA_AQ_INSTOP_WRITE:
+		/* Copy context and write mask */
+		if (req->ctype == NPA_AQ_CTYPE_AURA) {
+			memcpy(mask, &req->aura_mask,
+			       sizeof(struct npa_aura_s));
+			memcpy(ctx, &req->aura, sizeof(struct npa_aura_s));
+		} else {
+			memcpy(mask, &req->pool_mask,
+			       sizeof(struct npa_pool_s));
+			memcpy(ctx, &req->pool, sizeof(struct npa_pool_s));
+		}
+		break;
+	case NPA_AQ_INSTOP_INIT:
+		if (req->ctype == NPA_AQ_CTYPE_AURA) {
+			if (req->aura.pool_addr >= pfvf->pool_ctx->qsize) {
+				rc = NPA_AF_ERR_AQ_FULL;
+				break;
+			}
+			/* Set pool's context address */
+			req->aura.pool_addr = pfvf->pool_ctx->iova +
+			(req->aura.pool_addr * pfvf->pool_ctx->entry_sz);
+			memcpy(ctx, &req->aura, sizeof(struct npa_aura_s));
+		} else { /* POOL's context */
+			memcpy(ctx, &req->pool, sizeof(struct npa_pool_s));
+		}
+		break;
+	case NPA_AQ_INSTOP_NOP:
+	case NPA_AQ_INSTOP_READ:
+	case NPA_AQ_INSTOP_LOCK:
+	case NPA_AQ_INSTOP_UNLOCK:
+		break;
+	default:
+		rc = NPA_AF_ERR_AQ_FULL;
+		break;
+	}
+
+	if (rc)
+		return rc;
+
+	spin_lock(&aq->lock);
+
+	/* Submit the instruction to AQ */
+	rc = npa_aq_enqueue_wait(rvu, block, &inst);
+	if (rc) {
+		spin_unlock(&aq->lock);
+		return rc;
+	}
+
+	spin_unlock(&aq->lock);
+
+	if (rsp) {
+		/* Copy read context into mailbox */
+		if (req->op == NPA_AQ_INSTOP_READ) {
+			if (req->ctype == NPA_AQ_CTYPE_AURA)
+				memcpy(&rsp->aura, ctx,
+				       sizeof(struct npa_aura_s));
+			else
+				memcpy(&rsp->pool, ctx,
+				       sizeof(struct npa_pool_s));
+		}
+	}
+
+	return 0;
+}
+
+int rvu_mbox_handler_NPA_AQ_ENQ(struct rvu *rvu,
+				struct npa_aq_enq_req *req,
+				struct npa_aq_enq_rsp *rsp)
+{
+	return rvu_npa_aq_enq_inst(rvu, req, rsp);
+}
+
 static void npa_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
 {
 	qmem_free(rvu->dev, pfvf->aura_ctx);
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
index ae1c18d75cb6..6ebe1c95ea0f 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
@@ -136,4 +136,222 @@ struct npa_aq_res_s {
 #endif
 	u64 reserved_64_127;		/* W1 */
 };
+
+struct npa_aura_s {
+	u64 pool_addr;			/* W0 */
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W1 */
+	u64 avg_level             : 8;
+	u64 reserved_118_119      : 2;
+	u64 shift                 : 6;
+	u64 aura_drop             : 8;
+	u64 reserved_98_103       : 6;
+	u64 bp_ena                : 2;
+	u64 aura_drop_ena         : 1;
+	u64 pool_drop_ena         : 1;
+	u64 reserved_93           : 1;
+	u64 avg_con               : 9;
+	u64 pool_way_mask         : 16;
+	u64 pool_caching          : 1;
+	u64 reserved_65           : 2;
+	u64 ena                   : 1;
+#else
+	u64 ena                   : 1;
+	u64 reserved_65           : 2;
+	u64 pool_caching          : 1;
+	u64 pool_way_mask         : 16;
+	u64 avg_con               : 9;
+	u64 reserved_93           : 1;
+	u64 pool_drop_ena         : 1;
+	u64 aura_drop_ena         : 1;
+	u64 bp_ena                : 2;
+	u64 reserved_98_103       : 6;
+	u64 aura_drop             : 8;
+	u64 shift                 : 6;
+	u64 reserved_118_119      : 2;
+	u64 avg_level             : 8;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W2 */
+	u64 reserved_189_191      : 3;
+	u64 nix1_bpid             : 9;
+	u64 reserved_177_179      : 3;
+	u64 nix0_bpid             : 9;
+	u64 reserved_164_167      : 4;
+	u64 count                 : 36;
+#else
+	u64 count                 : 36;
+	u64 reserved_164_167      : 4;
+	u64 nix0_bpid             : 9;
+	u64 reserved_177_179      : 3;
+	u64 nix1_bpid             : 9;
+	u64 reserved_189_191      : 3;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W3 */
+	u64 reserved_252_255      : 4;
+	u64 fc_hyst_bits          : 4;
+	u64 fc_stype              : 2;
+	u64 fc_up_crossing        : 1;
+	u64 fc_ena                : 1;
+	u64 reserved_240_243      : 4;
+	u64 bp                    : 8;
+	u64 reserved_228_231      : 4;
+	u64 limit                 : 36;
+#else
+	u64 limit                 : 36;
+	u64 reserved_228_231      : 4;
+	u64 bp                    : 8;
+	u64 reserved_240_243      : 4;
+	u64 fc_ena                : 1;
+	u64 fc_up_crossing        : 1;
+	u64 fc_stype              : 2;
+	u64 fc_hyst_bits          : 4;
+	u64 reserved_252_255      : 4;
+#endif
+	u64 fc_addr;			/* W4 */
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W5 */
+	u64 reserved_379_383      : 5;
+	u64 err_qint_idx          : 7;
+	u64 reserved_371          : 1;
+	u64 thresh_qint_idx       : 7;
+	u64 reserved_363          : 1;
+	u64 thresh_up             : 1;
+	u64 thresh_int_ena        : 1;
+	u64 thresh_int            : 1;
+	u64 err_int_ena           : 8;
+	u64 err_int               : 8;
+	u64 update_time           : 16;
+	u64 pool_drop             : 8;
+#else
+	u64 pool_drop             : 8;
+	u64 update_time           : 16;
+	u64 err_int               : 8;
+	u64 err_int_ena           : 8;
+	u64 thresh_int            : 1;
+	u64 thresh_int_ena        : 1;
+	u64 thresh_up             : 1;
+	u64 reserved_363          : 1;
+	u64 thresh_qint_idx       : 7;
+	u64 reserved_371          : 1;
+	u64 err_qint_idx          : 7;
+	u64 reserved_379_383      : 5;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W6 */
+	u64 reserved_420_447      : 28;
+	u64 thresh                : 36;
+#else
+	u64 thresh                : 36;
+	u64 reserved_420_447      : 28;
+#endif
+	u64 reserved_448_511;		/* W7 */
+};
+
+struct npa_pool_s {
+	u64 stack_base;			/* W0 */
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W1 */
+	u64 reserved_115_127      : 13;
+	u64 buf_size              : 11;
+	u64 reserved_100_103      : 4;
+	u64 buf_offset            : 12;
+	u64 stack_way_mask        : 16;
+	u64 reserved_70_71        : 3;
+	u64 stack_caching         : 1;
+	u64 reserved_66_67        : 2;
+	u64 nat_align             : 1;
+	u64 ena                   : 1;
+#else
+	u64 ena                   : 1;
+	u64 nat_align             : 1;
+	u64 reserved_66_67        : 2;
+	u64 stack_caching         : 1;
+	u64 reserved_70_71        : 3;
+	u64 stack_way_mask        : 16;
+	u64 buf_offset            : 12;
+	u64 reserved_100_103      : 4;
+	u64 buf_size              : 11;
+	u64 reserved_115_127      : 13;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W2 */
+	u64 stack_pages           : 32;
+	u64 stack_max_pages       : 32;
+#else
+	u64 stack_max_pages       : 32;
+	u64 stack_pages           : 32;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W3 */
+	u64 reserved_240_255      : 16;
+	u64 op_pc                 : 48;
+#else
+	u64 op_pc                 : 48;
+	u64 reserved_240_255      : 16;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W4 */
+	u64 reserved_316_319      : 4;
+	u64 update_time           : 16;
+	u64 reserved_297_299      : 3;
+	u64 fc_up_crossing        : 1;
+	u64 fc_hyst_bits          : 4;
+	u64 fc_stype              : 2;
+	u64 fc_ena                : 1;
+	u64 avg_con               : 9;
+	u64 avg_level             : 8;
+	u64 reserved_270_271      : 2;
+	u64 shift                 : 6;
+	u64 reserved_260_263      : 4;
+	u64 stack_offset          : 4;
+#else
+	u64 stack_offset          : 4;
+	u64 reserved_260_263      : 4;
+	u64 shift                 : 6;
+	u64 reserved_270_271      : 2;
+	u64 avg_level             : 8;
+	u64 avg_con               : 9;
+	u64 fc_ena                : 1;
+	u64 fc_stype              : 2;
+	u64 fc_hyst_bits          : 4;
+	u64 fc_up_crossing        : 1;
+	u64 reserved_297_299      : 3;
+	u64 update_time           : 16;
+	u64 reserved_316_319      : 4;
+#endif
+	u64 fc_addr;			/* W5 */
+	u64 ptr_start;			/* W6 */
+	u64 ptr_end;			/* W7 */
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W8 */
+	u64 reserved_571_575      : 5;
+	u64 err_qint_idx          : 7;
+	u64 reserved_563          : 1;
+	u64 thresh_qint_idx       : 7;
+	u64 reserved_555          : 1;
+	u64 thresh_up             : 1;
+	u64 thresh_int_ena        : 1;
+	u64 thresh_int            : 1;
+	u64 err_int_ena           : 8;
+	u64 err_int               : 8;
+	u64 reserved_512_535      : 24;
+#else
+	u64 reserved_512_535      : 24;
+	u64 err_int               : 8;
+	u64 err_int_ena           : 8;
+	u64 thresh_int            : 1;
+	u64 thresh_int_ena        : 1;
+	u64 thresh_up             : 1;
+	u64 reserved_555          : 1;
+	u64 thresh_qint_idx       : 7;
+	u64 reserved_563          : 1;
+	u64 err_qint_idx          : 7;
+	u64 reserved_571_575      : 5;
+#endif
+#if defined(__BIG_ENDIAN_BITFIELD)	/* W9 */
+	u64 reserved_612_639      : 28;
+	u64 thresh                : 36;
+#else
+	u64 thresh                : 36;
+	u64 reserved_612_639      : 28;
+#endif
+	u64 reserved_640_703;		/* W10 */
+	u64 reserved_704_767;		/* W11 */
+	u64 reserved_768_831;		/* W12 */
+	u64 reserved_832_895;		/* W13 */
+	u64 reserved_896_959;		/* W14 */
+	u64 reserved_960_1023;		/* W15 */
+};
 #endif /* RVU_STRUCT_H */

From 57856dde119590462315ddb5b4bf5fd2d981cb36 Mon Sep 17 00:00:00 2001
From: Geetha sowjanya <gakula@marvell.com>
Date: Tue, 16 Oct 2018 16:57:14 +0530
Subject: [PATCH 10/16] octeontx2-af: Support for disabling NPA Aura/Pool
 contexts

This patch adds support for a RVU PF/VF to disable all Aura/Pool
contexts of a NPA LF via mbox. This will be used by PF/VF drivers
upon teardown or while freeing up HW resources.

A HW context which is not INIT'ed cannot be modified and a
RVU PF/VF driver may or may not INIT all the Aura/Pool contexts.
So a bitmap is introduced to keep track of enabled NPA Aura/Pool
contexts, so that only enabled hw contexts are disabled upon LF
teardown.

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  7 ++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |  5 +
 .../ethernet/marvell/octeontx2/af/rvu_npa.c   | 98 +++++++++++++++++++
 3 files changed, 110 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index bf11058ac30c..4e873147538d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -142,6 +142,7 @@ M(CGX_INTLBK_DISABLE,	0x20B, msg_req, msg_rsp)			\
 M(NPA_LF_ALLOC,		0x400, npa_lf_alloc_req, npa_lf_alloc_rsp)	\
 M(NPA_LF_FREE,		0x401, msg_req, msg_rsp)			\
 M(NPA_AQ_ENQ,		0x402, npa_aq_enq_req, npa_aq_enq_rsp)		\
+M(NPA_HWCTX_DISABLE,	0x403, hwctx_disable_req, msg_rsp)		\
 /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
 /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
 /* CPT mbox IDs (range 0xA00 - 0xBFF) */				\
@@ -325,4 +326,10 @@ struct npa_aq_enq_rsp {
 	};
 };
 
+/* Disable all contexts of type 'ctype' */
+struct hwctx_disable_req {
+	struct mbox_msghdr hdr;
+	u8 ctype;
+};
+
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index a70c26bfe746..bfc95c3ebe97 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -77,6 +77,8 @@ struct rvu_pfvf {
 	struct qmem	*aura_ctx;
 	struct qmem	*pool_ctx;
 	struct qmem	*npa_qints_ctx;
+	unsigned long	*aura_bmap;
+	unsigned long	*pool_bmap;
 };
 
 struct rvu_hwinfo {
@@ -216,6 +218,9 @@ void rvu_npa_freemem(struct rvu *rvu);
 int rvu_mbox_handler_NPA_AQ_ENQ(struct rvu *rvu,
 				struct npa_aq_enq_req *req,
 				struct npa_aq_enq_rsp *rsp);
+int rvu_mbox_handler_NPA_HWCTX_DISABLE(struct rvu *rvu,
+				       struct hwctx_disable_req *req,
+				       struct msg_rsp *rsp);
 int rvu_mbox_handler_NPA_LF_ALLOC(struct rvu *rvu,
 				  struct npa_lf_alloc_req *req,
 				  struct npa_lf_alloc_rsp *rsp);
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
index 4ff0e760eeb2..0e43a693d119 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c
@@ -63,6 +63,7 @@ static int rvu_npa_aq_enq_inst(struct rvu *rvu, struct npa_aq_enq_req *req,
 	struct admin_queue *aq;
 	struct rvu_pfvf *pfvf;
 	void *ctx, *mask;
+	bool ena;
 
 	pfvf = rvu_get_pfvf(rvu, pcifunc);
 	if (!pfvf->aura_ctx || req->aura_id >= pfvf->aura_ctx->qsize)
@@ -149,6 +150,35 @@ static int rvu_npa_aq_enq_inst(struct rvu *rvu, struct npa_aq_enq_req *req,
 		return rc;
 	}
 
+	/* Set aura bitmap if aura hw context is enabled */
+	if (req->ctype == NPA_AQ_CTYPE_AURA) {
+		if (req->op == NPA_AQ_INSTOP_INIT && req->aura.ena)
+			__set_bit(req->aura_id, pfvf->aura_bmap);
+		if (req->op == NPA_AQ_INSTOP_WRITE) {
+			ena = (req->aura.ena & req->aura_mask.ena) |
+				(test_bit(req->aura_id, pfvf->aura_bmap) &
+				~req->aura_mask.ena);
+			if (ena)
+				__set_bit(req->aura_id, pfvf->aura_bmap);
+			else
+				__clear_bit(req->aura_id, pfvf->aura_bmap);
+		}
+	}
+
+	/* Set pool bitmap if pool hw context is enabled */
+	if (req->ctype == NPA_AQ_CTYPE_POOL) {
+		if (req->op == NPA_AQ_INSTOP_INIT && req->pool.ena)
+			__set_bit(req->aura_id, pfvf->pool_bmap);
+		if (req->op == NPA_AQ_INSTOP_WRITE) {
+			ena = (req->pool.ena & req->pool_mask.ena) |
+				(test_bit(req->aura_id, pfvf->pool_bmap) &
+				~req->pool_mask.ena);
+			if (ena)
+				__set_bit(req->aura_id, pfvf->pool_bmap);
+			else
+				__clear_bit(req->aura_id, pfvf->pool_bmap);
+		}
+	}
 	spin_unlock(&aq->lock);
 
 	if (rsp) {
@@ -166,6 +196,51 @@ static int rvu_npa_aq_enq_inst(struct rvu *rvu, struct npa_aq_enq_req *req,
 	return 0;
 }
 
+static int npa_lf_hwctx_disable(struct rvu *rvu, struct hwctx_disable_req *req)
+{
+	struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);
+	struct npa_aq_enq_req aq_req;
+	unsigned long *bmap;
+	int id, cnt = 0;
+	int err = 0, rc;
+
+	if (!pfvf->pool_ctx || !pfvf->aura_ctx)
+		return NPA_AF_ERR_AQ_ENQUEUE;
+
+	memset(&aq_req, 0, sizeof(struct npa_aq_enq_req));
+	aq_req.hdr.pcifunc = req->hdr.pcifunc;
+
+	if (req->ctype == NPA_AQ_CTYPE_POOL) {
+		aq_req.pool.ena = 0;
+		aq_req.pool_mask.ena = 1;
+		cnt = pfvf->pool_ctx->qsize;
+		bmap = pfvf->pool_bmap;
+	} else if (req->ctype == NPA_AQ_CTYPE_AURA) {
+		aq_req.aura.ena = 0;
+		aq_req.aura_mask.ena = 1;
+		cnt = pfvf->aura_ctx->qsize;
+		bmap = pfvf->aura_bmap;
+	}
+
+	aq_req.ctype = req->ctype;
+	aq_req.op = NPA_AQ_INSTOP_WRITE;
+
+	for (id = 0; id < cnt; id++) {
+		if (!test_bit(id, bmap))
+			continue;
+		aq_req.aura_id = id;
+		rc = rvu_npa_aq_enq_inst(rvu, &aq_req, NULL);
+		if (rc) {
+			err = rc;
+			dev_err(rvu->dev, "Failed to disable %s:%d context\n",
+				(req->ctype == NPA_AQ_CTYPE_AURA) ?
+				"Aura" : "Pool", id);
+		}
+	}
+
+	return err;
+}
+
 int rvu_mbox_handler_NPA_AQ_ENQ(struct rvu *rvu,
 				struct npa_aq_enq_req *req,
 				struct npa_aq_enq_rsp *rsp)
@@ -173,11 +248,24 @@ int rvu_mbox_handler_NPA_AQ_ENQ(struct rvu *rvu,
 	return rvu_npa_aq_enq_inst(rvu, req, rsp);
 }
 
+int rvu_mbox_handler_NPA_HWCTX_DISABLE(struct rvu *rvu,
+				       struct hwctx_disable_req *req,
+				       struct msg_rsp *rsp)
+{
+	return npa_lf_hwctx_disable(rvu, req);
+}
+
 static void npa_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
 {
+	kfree(pfvf->aura_bmap);
+	pfvf->aura_bmap = NULL;
+
 	qmem_free(rvu->dev, pfvf->aura_ctx);
 	pfvf->aura_ctx = NULL;
 
+	kfree(pfvf->pool_bmap);
+	pfvf->pool_bmap = NULL;
+
 	qmem_free(rvu->dev, pfvf->pool_ctx);
 	pfvf->pool_ctx = NULL;
 
@@ -227,12 +315,22 @@ int rvu_mbox_handler_NPA_LF_ALLOC(struct rvu *rvu,
 	if (err)
 		goto free_mem;
 
+	pfvf->aura_bmap = kcalloc(NPA_AURA_COUNT(req->aura_sz), sizeof(long),
+				  GFP_KERNEL);
+	if (!pfvf->aura_bmap)
+		goto free_mem;
+
 	/* Alloc memory for pool HW contexts */
 	hwctx_size = 1UL << ((ctx_cfg >> 4) & 0xF);
 	err = qmem_alloc(rvu->dev, &pfvf->pool_ctx, req->nr_pools, hwctx_size);
 	if (err)
 		goto free_mem;
 
+	pfvf->pool_bmap = kcalloc(NPA_AURA_COUNT(req->aura_sz), sizeof(long),
+				  GFP_KERNEL);
+	if (!pfvf->pool_bmap)
+		goto free_mem;
+
 	/* Get no of queue interrupts supported */
 	cfg = rvu_read64(rvu, blkaddr, NPA_AF_CONST);
 	qints = (cfg >> 28) & 0xFFF;

From aba53d5dbceabd36786a2a2f63ebbfe40cc343ad Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:15 +0530
Subject: [PATCH 11/16] octeontx2-af: NIX block admin queue init

Initialize NIX admin queue (AQ) i.e alloc memory for
AQ instructions and for the results. All NIX LFs will submit
instructions to AQ to init/write/read RQ/SQ/CQ/RSS contexts
and in case of read, get context from result memory.

Also before configuring/using NIX block calibrate X2P bus
and check if NIX interfaces like CGX and LBK are in active
and working state.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../ethernet/marvell/octeontx2/af/Makefile    |   2 +-
 .../net/ethernet/marvell/octeontx2/af/rvu.c   |   5 +
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |   4 +
 .../ethernet/marvell/octeontx2/af/rvu_nix.c   | 138 ++++++++++++++++++
 .../marvell/octeontx2/af/rvu_struct.h         |  72 +++++++++
 5 files changed, 220 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/Makefile b/drivers/net/ethernet/marvell/octeontx2/af/Makefile
index bdb4f98572a0..45b108f8f955 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/Makefile
+++ b/drivers/net/ethernet/marvell/octeontx2/af/Makefile
@@ -7,4 +7,4 @@ obj-$(CONFIG_OCTEONTX2_MBOX) += octeontx2_mbox.o
 obj-$(CONFIG_OCTEONTX2_AF) += octeontx2_af.o
 
 octeontx2_mbox-y := mbox.o
-octeontx2_af-y := cgx.o rvu.o rvu_cgx.o rvu_npa.o
+octeontx2_af-y := cgx.o rvu.o rvu_cgx.o rvu_npa.o rvu_nix.o
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
index 5d4917c41d51..c06cca9c9e1a 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
@@ -566,6 +566,7 @@ static void rvu_free_hw_resources(struct rvu *rvu)
 	u64 cfg;
 
 	rvu_npa_freemem(rvu);
+	rvu_nix_freemem(rvu);
 
 	/* Free block LF bitmaps */
 	for (id = 0; id < BLK_COUNT; id++) {
@@ -774,6 +775,10 @@ static int rvu_setup_hw_resources(struct rvu *rvu)
 	if (err)
 		return err;
 
+	err = rvu_nix_init(rvu);
+	if (err)
+		return err;
+
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index bfc95c3ebe97..0d0fb1d1dcd9 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -226,4 +226,8 @@ int rvu_mbox_handler_NPA_LF_ALLOC(struct rvu *rvu,
 				  struct npa_lf_alloc_rsp *rsp);
 int rvu_mbox_handler_NPA_LF_FREE(struct rvu *rvu, struct msg_req *req,
 				 struct msg_rsp *rsp);
+
+/* NIX APIs */
+int rvu_nix_init(struct rvu *rvu);
+void rvu_nix_freemem(struct rvu *rvu);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
new file mode 100644
index 000000000000..5ff9e6b53856
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Marvell OcteonTx2 RVU Admin Function driver
+ *
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "rvu_struct.h"
+#include "rvu_reg.h"
+#include "rvu.h"
+#include "cgx.h"
+
+static int nix_calibrate_x2p(struct rvu *rvu, int blkaddr)
+{
+	int idx, err;
+	u64 status;
+
+	/* Start X2P bus calibration */
+	rvu_write64(rvu, blkaddr, NIX_AF_CFG,
+		    rvu_read64(rvu, blkaddr, NIX_AF_CFG) | BIT_ULL(9));
+	/* Wait for calibration to complete */
+	err = rvu_poll_reg(rvu, blkaddr,
+			   NIX_AF_STATUS, BIT_ULL(10), false);
+	if (err) {
+		dev_err(rvu->dev, "NIX X2P bus calibration failed\n");
+		return err;
+	}
+
+	status = rvu_read64(rvu, blkaddr, NIX_AF_STATUS);
+	/* Check if CGX devices are ready */
+	for (idx = 0; idx < cgx_get_cgx_cnt(); idx++) {
+		if (status & (BIT_ULL(16 + idx)))
+			continue;
+		dev_err(rvu->dev,
+			"CGX%d didn't respond to NIX X2P calibration\n", idx);
+		err = -EBUSY;
+	}
+
+	/* Check if LBK is ready */
+	if (!(status & BIT_ULL(19))) {
+		dev_err(rvu->dev,
+			"LBK didn't respond to NIX X2P calibration\n");
+		err = -EBUSY;
+	}
+
+	/* Clear 'calibrate_x2p' bit */
+	rvu_write64(rvu, blkaddr, NIX_AF_CFG,
+		    rvu_read64(rvu, blkaddr, NIX_AF_CFG) & ~BIT_ULL(9));
+	if (err || (status & 0x3FFULL))
+		dev_err(rvu->dev,
+			"NIX X2P calibration failed, status 0x%llx\n", status);
+	if (err)
+		return err;
+	return 0;
+}
+
+static int nix_aq_init(struct rvu *rvu, struct rvu_block *block)
+{
+	u64 cfg;
+	int err;
+
+	/* Set admin queue endianness */
+	cfg = rvu_read64(rvu, block->addr, NIX_AF_CFG);
+#ifdef __BIG_ENDIAN
+	cfg |= BIT_ULL(1);
+	rvu_write64(rvu, block->addr, NIX_AF_CFG, cfg);
+#else
+	cfg &= ~BIT_ULL(1);
+	rvu_write64(rvu, block->addr, NIX_AF_CFG, cfg);
+#endif
+
+	/* Do not bypass NDC cache */
+	cfg = rvu_read64(rvu, block->addr, NIX_AF_NDC_CFG);
+	cfg &= ~0x3FFEULL;
+	rvu_write64(rvu, block->addr, NIX_AF_NDC_CFG, cfg);
+
+	/* Result structure can be followed by RQ/SQ/CQ context at
+	 * RES + 128bytes and a write mask at RES + 256 bytes, depending on
+	 * operation type. Alloc sufficient result memory for all operations.
+	 */
+	err = rvu_aq_alloc(rvu, &block->aq,
+			   Q_COUNT(AQ_SIZE), sizeof(struct nix_aq_inst_s),
+			   ALIGN(sizeof(struct nix_aq_res_s), 128) + 256);
+	if (err)
+		return err;
+
+	rvu_write64(rvu, block->addr, NIX_AF_AQ_CFG, AQ_SIZE);
+	rvu_write64(rvu, block->addr,
+		    NIX_AF_AQ_BASE, (u64)block->aq->inst->iova);
+	return 0;
+}
+
+int rvu_nix_init(struct rvu *rvu)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	struct rvu_block *block;
+	int blkaddr, err;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
+	if (blkaddr < 0)
+		return 0;
+	block = &hw->block[blkaddr];
+
+	/* Calibrate X2P bus to check if CGX/LBK links are fine */
+	err = nix_calibrate_x2p(rvu, blkaddr);
+	if (err)
+		return err;
+
+	/* Initialize admin queue */
+	err = nix_aq_init(rvu, block);
+	if (err)
+		return err;
+
+	/* Restore CINT timer delay to HW reset values */
+	rvu_write64(rvu, blkaddr, NIX_AF_CINT_DELAY, 0x0ULL);
+
+	return 0;
+}
+
+void rvu_nix_freemem(struct rvu *rvu)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	struct rvu_block *block;
+	int blkaddr;
+
+	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
+	if (blkaddr < 0)
+		return;
+
+	block = &hw->block[blkaddr];
+	rvu_aq_free(rvu, block->aq);
+}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
index 6ebe1c95ea0f..0981f67d6175 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
@@ -354,4 +354,76 @@ struct npa_pool_s {
 	u64 reserved_896_959;		/* W14 */
 	u64 reserved_960_1023;		/* W15 */
 };
+
+/* NIX admin queue completion status */
+enum nix_aq_comp {
+	NIX_AQ_COMP_NOTDONE        = 0x0,
+	NIX_AQ_COMP_GOOD           = 0x1,
+	NIX_AQ_COMP_SWERR          = 0x2,
+	NIX_AQ_COMP_CTX_POISON     = 0x3,
+	NIX_AQ_COMP_CTX_FAULT      = 0x4,
+	NIX_AQ_COMP_LOCKERR        = 0x5,
+	NIX_AQ_COMP_SQB_ALLOC_FAIL = 0x6,
+};
+
+/* NIX admin queue context types */
+enum nix_aq_ctype {
+	NIX_AQ_CTYPE_RQ   = 0x0,
+	NIX_AQ_CTYPE_SQ   = 0x1,
+	NIX_AQ_CTYPE_CQ   = 0x2,
+	NIX_AQ_CTYPE_MCE  = 0x3,
+	NIX_AQ_CTYPE_RSS  = 0x4,
+	NIX_AQ_CTYPE_DYNO = 0x5,
+};
+
+/* NIX admin queue instruction opcodes */
+enum nix_aq_instop {
+	NIX_AQ_INSTOP_NOP    = 0x0,
+	NIX_AQ_INSTOP_INIT   = 0x1,
+	NIX_AQ_INSTOP_WRITE  = 0x2,
+	NIX_AQ_INSTOP_READ   = 0x3,
+	NIX_AQ_INSTOP_LOCK   = 0x4,
+	NIX_AQ_INSTOP_UNLOCK = 0x5,
+};
+
+/* NIX admin queue instruction structure */
+struct nix_aq_inst_s {
+#if defined(__BIG_ENDIAN_BITFIELD)
+	u64 doneint		: 1;	/* W0 */
+	u64 reserved_44_62	: 19;
+	u64 cindex		: 20;
+	u64 reserved_15_23	: 9;
+	u64 lf			: 7;
+	u64 ctype		: 4;
+	u64 op			: 4;
+#else
+	u64 op			: 4;
+	u64 ctype		: 4;
+	u64 lf			: 7;
+	u64 reserved_15_23	: 9;
+	u64 cindex		: 20;
+	u64 reserved_44_62	: 19;
+	u64 doneint		: 1;
+#endif
+	u64 res_addr;			/* W1 */
+};
+
+/* NIX admin queue result structure */
+struct nix_aq_res_s {
+#if defined(__BIG_ENDIAN_BITFIELD)
+	u64 reserved_17_63	: 47;	/* W0 */
+	u64 doneint		: 1;
+	u64 compcode		: 8;
+	u64 ctype		: 4;
+	u64 op			: 4;
+#else
+	u64 op			: 4;
+	u64 ctype		: 4;
+	u64 compcode		: 8;
+	u64 doneint		: 1;
+	u64 reserved_17_63	: 47;
+#endif
+	u64 reserved_64_127;		/* W1 */
+};
+
 #endif /* RVU_STRUCT_H */

From cb30711a6c7aa4956f3fea8bfe2d6adeac4f55c0 Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:16 +0530
Subject: [PATCH 12/16] octeontx2-af: NIX block LF initialization

Upon receiving NIX_LF_ALLOC mbox message allocate memory for
NIXLF's CQ, SQ, RQ, CINT, QINT and RSS HW contexts and configure
respective base iova HW. Enable caching of contexts into NIX NDC.

Return SQ buffer (SQB) size, this PF/VF MAC address etc info
e.t.c to the mbox msg sender.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../ethernet/marvell/octeontx2/af/common.h    |  10 +
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  45 ++++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |  15 ++
 .../ethernet/marvell/octeontx2/af/rvu_nix.c   | 238 ++++++++++++++++++
 4 files changed, 308 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h
index 24021cb110e8..d183ad89a3f7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h
@@ -131,4 +131,14 @@ struct npa_aq_pool_res {
 	struct	npa_pool_s	pool_ctx;
 	struct	npa_pool_s	ctx_mask;
 };
+
+/* RSS info */
+#define MAX_RSS_GROUPS			8
+/* Group 0 has to be used in default pkt forwarding MCAM entries
+ * reserved for NIXLFs. Groups 1-7 can be used for RSS for ntuple
+ * filters.
+ */
+#define DEFAULT_RSS_CONTEXT_GROUP	0
+#define MAX_RSS_INDIR_TBL_SIZE		256 /* 1 << Max adder bits */
+
 #endif /* COMMON_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 4e873147538d..5718b55b2608 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -148,6 +148,8 @@ M(NPA_HWCTX_DISABLE,	0x403, hwctx_disable_req, msg_rsp)		\
 /* CPT mbox IDs (range 0xA00 - 0xBFF) */				\
 /* 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)
 
 /* Messages initiated by AF (range 0xC00 - 0xDFF) */
 #define MBOX_UP_CGX_MESSAGES						\
@@ -162,6 +164,8 @@ MBOX_UP_CGX_MESSAGES
 
 /* Mailbox message formats */
 
+#define RVU_DEFAULT_PF_FUNC     0xFFFF
+
 /* Generic request msg used for those mbox messages which
  * don't send any data in the request.
  */
@@ -332,4 +336,45 @@ struct hwctx_disable_req {
 	u8 ctype;
 };
 
+/* NIX mailbox error codes
+ * Range 401 - 500.
+ */
+enum nix_af_status {
+	NIX_AF_ERR_PARAM            = -401,
+	NIX_AF_ERR_AQ_FULL          = -402,
+	NIX_AF_ERR_AQ_ENQUEUE       = -403,
+	NIX_AF_ERR_AF_LF_INVALID    = -404,
+	NIX_AF_ERR_AF_LF_ALLOC      = -405,
+	NIX_AF_ERR_TLX_ALLOC_FAIL   = -406,
+	NIX_AF_ERR_TLX_INVALID      = -407,
+	NIX_AF_ERR_RSS_SIZE_INVALID = -408,
+	NIX_AF_ERR_RSS_GRPS_INVALID = -409,
+	NIX_AF_ERR_FRS_INVALID      = -410,
+	NIX_AF_ERR_RX_LINK_INVALID  = -411,
+	NIX_AF_INVAL_TXSCHQ_CFG     = -412,
+	NIX_AF_SMQ_FLUSH_FAILED     = -413,
+	NIX_AF_ERR_LF_RESET         = -414,
+};
+
+/* For NIX LF context alloc and init */
+struct nix_lf_alloc_req {
+	struct mbox_msghdr hdr;
+	int node;
+	u32 rq_cnt;   /* No of receive queues */
+	u32 sq_cnt;   /* No of send queues */
+	u32 cq_cnt;   /* No of completion queues */
+	u8  xqe_sz;
+	u16 rss_sz;
+	u8  rss_grps;
+	u16 npa_func;
+	u16 sso_func;
+	u64 rx_cfg;   /* See NIX_AF_LF(0..127)_RX_CFG */
+};
+
+struct nix_lf_alloc_rsp {
+	struct mbox_msghdr hdr;
+	u16	sqb_size;
+	u8      mac_addr[ETH_ALEN];
+};
+
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 0d0fb1d1dcd9..d6aca2e23d79 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -79,6 +79,16 @@ struct rvu_pfvf {
 	struct qmem	*npa_qints_ctx;
 	unsigned long	*aura_bmap;
 	unsigned long	*pool_bmap;
+
+	/* NIX contexts */
+	struct qmem	*rq_ctx;
+	struct qmem	*sq_ctx;
+	struct qmem	*cq_ctx;
+	struct qmem	*rss_ctx;
+	struct qmem	*cq_ints_ctx;
+	struct qmem	*nix_qints_ctx;
+
+	u8		mac_addr[ETH_ALEN]; /* MAC address of this PF/VF */
 };
 
 struct rvu_hwinfo {
@@ -230,4 +240,9 @@ int rvu_mbox_handler_NPA_LF_FREE(struct rvu *rvu, struct msg_req *req,
 /* NIX APIs */
 int rvu_nix_init(struct rvu *rvu);
 void rvu_nix_freemem(struct rvu *rvu);
+int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
+				  struct nix_lf_alloc_req *req,
+				  struct nix_lf_alloc_rsp *rsp);
+int rvu_mbox_handler_NIX_LF_FREE(struct rvu *rvu, struct msg_req *req,
+				 struct msg_rsp *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 5ff9e6b53856..1f41c7c76417 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -16,6 +16,244 @@
 #include "rvu.h"
 #include "cgx.h"
 
+static void nix_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
+{
+	if (pfvf->rq_ctx)
+		qmem_free(rvu->dev, pfvf->rq_ctx);
+	if (pfvf->sq_ctx)
+		qmem_free(rvu->dev, pfvf->sq_ctx);
+	if (pfvf->cq_ctx)
+		qmem_free(rvu->dev, pfvf->cq_ctx);
+	if (pfvf->rss_ctx)
+		qmem_free(rvu->dev, pfvf->rss_ctx);
+	if (pfvf->nix_qints_ctx)
+		qmem_free(rvu->dev, pfvf->nix_qints_ctx);
+	if (pfvf->cq_ints_ctx)
+		qmem_free(rvu->dev, pfvf->cq_ints_ctx);
+
+	pfvf->rq_ctx = NULL;
+	pfvf->sq_ctx = NULL;
+	pfvf->cq_ctx = NULL;
+	pfvf->rss_ctx = NULL;
+	pfvf->nix_qints_ctx = NULL;
+	pfvf->cq_ints_ctx = NULL;
+}
+
+static int nixlf_rss_ctx_init(struct rvu *rvu, int blkaddr,
+			      struct rvu_pfvf *pfvf, int nixlf,
+			      int rss_sz, int rss_grps, int hwctx_size)
+{
+	int err, grp, num_indices;
+
+	/* RSS is not requested for this NIXLF */
+	if (!rss_sz)
+		return 0;
+	num_indices = rss_sz * rss_grps;
+
+	/* Alloc NIX RSS HW context memory and config the base */
+	err = qmem_alloc(rvu->dev, &pfvf->rss_ctx, num_indices, hwctx_size);
+	if (err)
+		return err;
+
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_BASE(nixlf),
+		    (u64)pfvf->rss_ctx->iova);
+
+	/* Config full RSS table size, enable RSS and caching */
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_CFG(nixlf),
+		    BIT_ULL(36) | BIT_ULL(4) |
+		    ilog2(num_indices / MAX_RSS_INDIR_TBL_SIZE));
+	/* Config RSS group offset and sizes */
+	for (grp = 0; grp < rss_grps; grp++)
+		rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_GRPX(nixlf, grp),
+			    ((ilog2(rss_sz) - 1) << 16) | (rss_sz * grp));
+	return 0;
+}
+
+int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
+				  struct nix_lf_alloc_req *req,
+				  struct nix_lf_alloc_rsp *rsp)
+{
+	int nixlf, qints, hwctx_size, err, rc = 0;
+	struct rvu_hwinfo *hw = rvu->hw;
+	u16 pcifunc = req->hdr.pcifunc;
+	struct rvu_block *block;
+	struct rvu_pfvf *pfvf;
+	u64 cfg, ctx_cfg;
+	int blkaddr;
+
+	if (!req->rq_cnt || !req->sq_cnt || !req->cq_cnt)
+		return NIX_AF_ERR_PARAM;
+
+	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];
+	nixlf = rvu_get_lf(rvu, block, pcifunc, 0);
+	if (nixlf < 0)
+		return NIX_AF_ERR_AF_LF_INVALID;
+
+	/* If RSS is being enabled, check if requested config is valid.
+	 * RSS table size should be power of two, otherwise
+	 * RSS_GRP::OFFSET + adder might go beyond that group or
+	 * won't be able to use entire table.
+	 */
+	if (req->rss_sz && (req->rss_sz > MAX_RSS_INDIR_TBL_SIZE ||
+			    !is_power_of_2(req->rss_sz)))
+		return NIX_AF_ERR_RSS_SIZE_INVALID;
+
+	if (req->rss_sz &&
+	    (!req->rss_grps || req->rss_grps > MAX_RSS_GROUPS))
+		return NIX_AF_ERR_RSS_GRPS_INVALID;
+
+	/* Reset this NIX LF */
+	err = rvu_lf_reset(rvu, block, nixlf);
+	if (err) {
+		dev_err(rvu->dev, "Failed to reset NIX%d LF%d\n",
+			block->addr - BLKADDR_NIX0, nixlf);
+		return NIX_AF_ERR_LF_RESET;
+	}
+
+	ctx_cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST3);
+
+	/* Alloc NIX RQ HW context memory and config the base */
+	hwctx_size = 1UL << ((ctx_cfg >> 4) & 0xF);
+	err = qmem_alloc(rvu->dev, &pfvf->rq_ctx, req->rq_cnt, hwctx_size);
+	if (err)
+		goto free_mem;
+
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_RQS_BASE(nixlf),
+		    (u64)pfvf->rq_ctx->iova);
+
+	/* Set caching and queue count in HW */
+	cfg = BIT_ULL(36) | (req->rq_cnt - 1);
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_RQS_CFG(nixlf), cfg);
+
+	/* Alloc NIX SQ HW context memory and config the base */
+	hwctx_size = 1UL << (ctx_cfg & 0xF);
+	err = qmem_alloc(rvu->dev, &pfvf->sq_ctx, req->sq_cnt, hwctx_size);
+	if (err)
+		goto free_mem;
+
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_SQS_BASE(nixlf),
+		    (u64)pfvf->sq_ctx->iova);
+	cfg = BIT_ULL(36) | (req->sq_cnt - 1);
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_SQS_CFG(nixlf), cfg);
+
+	/* Alloc NIX CQ HW context memory and config the base */
+	hwctx_size = 1UL << ((ctx_cfg >> 8) & 0xF);
+	err = qmem_alloc(rvu->dev, &pfvf->cq_ctx, req->cq_cnt, hwctx_size);
+	if (err)
+		goto free_mem;
+
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_CQS_BASE(nixlf),
+		    (u64)pfvf->cq_ctx->iova);
+	cfg = BIT_ULL(36) | (req->cq_cnt - 1);
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_CQS_CFG(nixlf), cfg);
+
+	/* Initialize receive side scaling (RSS) */
+	hwctx_size = 1UL << ((ctx_cfg >> 12) & 0xF);
+	err = nixlf_rss_ctx_init(rvu, blkaddr, pfvf, nixlf,
+				 req->rss_sz, req->rss_grps, hwctx_size);
+	if (err)
+		goto free_mem;
+
+	/* Alloc memory for CQINT's HW contexts */
+	cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2);
+	qints = (cfg >> 24) & 0xFFF;
+	hwctx_size = 1UL << ((ctx_cfg >> 24) & 0xF);
+	err = qmem_alloc(rvu->dev, &pfvf->cq_ints_ctx, qints, hwctx_size);
+	if (err)
+		goto free_mem;
+
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_CINTS_BASE(nixlf),
+		    (u64)pfvf->cq_ints_ctx->iova);
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_CINTS_CFG(nixlf), BIT_ULL(36));
+
+	/* Alloc memory for QINT's HW contexts */
+	cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2);
+	qints = (cfg >> 12) & 0xFFF;
+	hwctx_size = 1UL << ((ctx_cfg >> 20) & 0xF);
+	err = qmem_alloc(rvu->dev, &pfvf->nix_qints_ctx, qints, hwctx_size);
+	if (err)
+		goto free_mem;
+
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_QINTS_BASE(nixlf),
+		    (u64)pfvf->nix_qints_ctx->iova);
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_QINTS_CFG(nixlf), BIT_ULL(36));
+
+	/* Enable LMTST for this NIX LF */
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_CFG2(nixlf), BIT_ULL(0));
+
+	/* Set CQE/WQE size, NPA_PF_FUNC for SQBs and also SSO_PF_FUNC
+	 * If requester has sent a 'RVU_DEFAULT_PF_FUNC' use this NIX LF's
+	 * PCIFUNC itself.
+	 */
+	if (req->npa_func == RVU_DEFAULT_PF_FUNC)
+		cfg = pcifunc;
+	else
+		cfg = req->npa_func;
+
+	if (req->sso_func == RVU_DEFAULT_PF_FUNC)
+		cfg |= (u64)pcifunc << 16;
+	else
+		cfg |= (u64)req->sso_func << 16;
+
+	cfg |= (u64)req->xqe_sz << 33;
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_CFG(nixlf), cfg);
+
+	/* Config Rx pkt length, csum checks and apad  enable / disable */
+	rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf), req->rx_cfg);
+
+	goto exit;
+
+free_mem:
+	nix_ctx_free(rvu, pfvf);
+	rc = -ENOMEM;
+
+exit:
+	/* Set macaddr of this PF/VF */
+	ether_addr_copy(rsp->mac_addr, pfvf->mac_addr);
+
+	/* set SQB size info */
+	cfg = rvu_read64(rvu, blkaddr, NIX_AF_SQ_CONST);
+	rsp->sqb_size = (cfg >> 34) & 0xFFFF;
+	return rc;
+}
+
+int rvu_mbox_handler_NIX_LF_FREE(struct rvu *rvu, struct msg_req *req,
+				 struct msg_rsp *rsp)
+{
+	struct rvu_hwinfo *hw = rvu->hw;
+	u16 pcifunc = req->hdr.pcifunc;
+	struct rvu_block *block;
+	int blkaddr, nixlf, err;
+	struct rvu_pfvf *pfvf;
+
+	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];
+	nixlf = rvu_get_lf(rvu, block, pcifunc, 0);
+	if (nixlf < 0)
+		return NIX_AF_ERR_AF_LF_INVALID;
+
+	/* Reset this NIX LF */
+	err = rvu_lf_reset(rvu, block, nixlf);
+	if (err) {
+		dev_err(rvu->dev, "Failed to reset NIX%d LF%d\n",
+			block->addr - BLKADDR_NIX0, nixlf);
+		return NIX_AF_ERR_LF_RESET;
+	}
+
+	nix_ctx_free(rvu, pfvf);
+
+	return 0;
+}
+
 static int nix_calibrate_x2p(struct rvu *rvu, int blkaddr)
 {
 	int idx, err;

From 59360e9809daecb59c3c42ee10918155bfded615 Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:17 +0530
Subject: [PATCH 13/16] octeontx2-af: NIX LSO config for TSOv4/v6 offload

Config LSO formats for TSOv4 and TSOv6 offloads.
These formats tell HW which fields in the TCP packet's
headers have to be updated while performing segmentation
offload.

Also report PF/VF drivers the LSO format indices as part
of response to NIX_LF_ALLOC mbox msg. These indices are
used in SQE extension headers while framing SQE for pkt
transmission with TSO offload.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../ethernet/marvell/octeontx2/af/common.h    |  6 ++
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  2 +
 .../ethernet/marvell/octeontx2/af/rvu_nix.c   | 95 +++++++++++++++++++
 .../marvell/octeontx2/af/rvu_struct.h         | 35 +++++++
 4 files changed, 138 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h
index d183ad89a3f7..dc55e3416daa 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h
@@ -132,6 +132,12 @@ struct npa_aq_pool_res {
 	struct	npa_pool_s	ctx_mask;
 };
 
+/* NIX LSO format indices.
+ * As of now TSO is the only one using, so statically assigning indices.
+ */
+#define NIX_LSO_FORMAT_IDX_TSOV4	0
+#define NIX_LSO_FORMAT_IDX_TSOV6	1
+
 /* RSS info */
 #define MAX_RSS_GROUPS			8
 /* Group 0 has to be used in default pkt forwarding MCAM entries
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 5718b55b2608..2f24e5d29cdc 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -374,6 +374,8 @@ struct nix_lf_alloc_req {
 struct nix_lf_alloc_rsp {
 	struct mbox_msghdr hdr;
 	u16	sqb_size;
+	u8	lso_tsov4_idx;
+	u8	lso_tsov6_idx;
 	u8      mac_addr[ETH_ALEN];
 };
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 1f41c7c76417..401f87fc5415 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -16,6 +16,96 @@
 #include "rvu.h"
 #include "cgx.h"
 
+static void nix_setup_lso_tso_l3(struct rvu *rvu, int blkaddr,
+				 u64 format, bool v4, u64 *fidx)
+{
+	struct nix_lso_format field = {0};
+
+	/* IP's Length field */
+	field.layer = NIX_TXLAYER_OL3;
+	/* In ipv4, length field is at offset 2 bytes, for ipv6 it's 4 */
+	field.offset = v4 ? 2 : 4;
+	field.sizem1 = 1; /* i.e 2 bytes */
+	field.alg = NIX_LSOALG_ADD_PAYLEN;
+	rvu_write64(rvu, blkaddr,
+		    NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++),
+		    *(u64 *)&field);
+
+	/* No ID field in IPv6 header */
+	if (!v4)
+		return;
+
+	/* IP's ID field */
+	field.layer = NIX_TXLAYER_OL3;
+	field.offset = 4;
+	field.sizem1 = 1; /* i.e 2 bytes */
+	field.alg = NIX_LSOALG_ADD_SEGNUM;
+	rvu_write64(rvu, blkaddr,
+		    NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++),
+		    *(u64 *)&field);
+}
+
+static void nix_setup_lso_tso_l4(struct rvu *rvu, int blkaddr,
+				 u64 format, u64 *fidx)
+{
+	struct nix_lso_format field = {0};
+
+	/* TCP's sequence number field */
+	field.layer = NIX_TXLAYER_OL4;
+	field.offset = 4;
+	field.sizem1 = 3; /* i.e 4 bytes */
+	field.alg = NIX_LSOALG_ADD_OFFSET;
+	rvu_write64(rvu, blkaddr,
+		    NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++),
+		    *(u64 *)&field);
+
+	/* TCP's flags field */
+	field.layer = NIX_TXLAYER_OL4;
+	field.offset = 12;
+	field.sizem1 = 0; /* not needed */
+	field.alg = NIX_LSOALG_TCP_FLAGS;
+	rvu_write64(rvu, blkaddr,
+		    NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++),
+		    *(u64 *)&field);
+}
+
+static void nix_setup_lso(struct rvu *rvu, int blkaddr)
+{
+	u64 cfg, idx, fidx = 0;
+
+	/* Enable LSO */
+	cfg = rvu_read64(rvu, blkaddr, NIX_AF_LSO_CFG);
+	/* For TSO, set first and middle segment flags to
+	 * mask out PSH, RST & FIN flags in TCP packet
+	 */
+	cfg &= ~((0xFFFFULL << 32) | (0xFFFFULL << 16));
+	cfg |= (0xFFF2ULL << 32) | (0xFFF2ULL << 16);
+	rvu_write64(rvu, blkaddr, NIX_AF_LSO_CFG, cfg | BIT_ULL(63));
+
+	/* Configure format fields for TCPv4 segmentation offload */
+	idx = NIX_LSO_FORMAT_IDX_TSOV4;
+	nix_setup_lso_tso_l3(rvu, blkaddr, idx, true, &fidx);
+	nix_setup_lso_tso_l4(rvu, blkaddr, idx, &fidx);
+
+	/* Set rest of the fields to NOP */
+	for (; fidx < 8; fidx++) {
+		rvu_write64(rvu, blkaddr,
+			    NIX_AF_LSO_FORMATX_FIELDX(idx, fidx), 0x0ULL);
+	}
+
+	/* Configure format fields for TCPv6 segmentation offload */
+	idx = NIX_LSO_FORMAT_IDX_TSOV6;
+	fidx = 0;
+	nix_setup_lso_tso_l3(rvu, blkaddr, idx, false, &fidx);
+	nix_setup_lso_tso_l4(rvu, blkaddr, idx, &fidx);
+
+	/* Set rest of the fields to NOP */
+	for (; fidx < 8; fidx++) {
+		rvu_write64(rvu, blkaddr,
+			    NIX_AF_LSO_FORMATX_FIELDX(idx, fidx), 0x0ULL);
+	}
+}
+
 static void nix_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
 {
 	if (pfvf->rq_ctx)
@@ -219,6 +309,8 @@ int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
 	/* set SQB size info */
 	cfg = rvu_read64(rvu, blkaddr, NIX_AF_SQ_CONST);
 	rsp->sqb_size = (cfg >> 34) & 0xFFFF;
+	rsp->lso_tsov4_idx = NIX_LSO_FORMAT_IDX_TSOV4;
+	rsp->lso_tsov6_idx = NIX_LSO_FORMAT_IDX_TSOV6;
 	return rc;
 }
 
@@ -358,6 +450,9 @@ int rvu_nix_init(struct rvu *rvu)
 	/* Restore CINT timer delay to HW reset values */
 	rvu_write64(rvu, blkaddr, NIX_AF_CINT_DELAY, 0x0ULL);
 
+	/* Configure segmentation offload formats */
+	nix_setup_lso(rvu, blkaddr);
+
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
index 0981f67d6175..fe55f09e9ef3 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
@@ -426,4 +426,39 @@ struct nix_aq_res_s {
 	u64 reserved_64_127;		/* W1 */
 };
 
+enum nix_lsoalg {
+	NIX_LSOALG_NOP,
+	NIX_LSOALG_ADD_SEGNUM,
+	NIX_LSOALG_ADD_PAYLEN,
+	NIX_LSOALG_ADD_OFFSET,
+	NIX_LSOALG_TCP_FLAGS,
+};
+
+enum nix_txlayer {
+	NIX_TXLAYER_OL3,
+	NIX_TXLAYER_OL4,
+	NIX_TXLAYER_IL3,
+	NIX_TXLAYER_IL4,
+};
+
+struct nix_lso_format {
+#if defined(__BIG_ENDIAN_BITFIELD)
+	u64 rsvd_19_63		: 45;
+	u64 alg			: 3;
+	u64 rsvd_14_15		: 2;
+	u64 sizem1		: 2;
+	u64 rsvd_10_11		: 2;
+	u64 layer		: 2;
+	u64 offset		: 8;
+#else
+	u64 offset		: 8;
+	u64 layer		: 2;
+	u64 rsvd_10_11		: 2;
+	u64 sizem1		: 2;
+	u64 rsvd_14_15		: 2;
+	u64 alg			: 3;
+	u64 rsvd_19_63		: 45;
+#endif
+};
+
 #endif /* RVU_STRUCT_H */

From 709a4f0c254c06289283593b92b233451656bac3 Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:18 +0530
Subject: [PATCH 14/16] octeontx2-af: Alloc bitmaps for NIX Tx scheduler queues

Allocate bitmaps and memory for PFVF mapping info for
maintaining NIX transmit scheduler queues maintenance.
PF/VF drivers will request for alloc, free e.t.c of
Tx schedulers via mailbox.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../ethernet/marvell/octeontx2/af/common.h    | 11 +++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   | 16 ++++
 .../ethernet/marvell/octeontx2/af/rvu_nix.c   | 88 ++++++++++++++++++-
 3 files changed, 114 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h
index dc55e3416daa..28eb691185f4 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h
@@ -132,6 +132,17 @@ struct npa_aq_pool_res {
 	struct	npa_pool_s	ctx_mask;
 };
 
+/* NIX Transmit schedulers */
+enum nix_scheduler {
+	NIX_TXSCH_LVL_SMQ = 0x0,
+	NIX_TXSCH_LVL_MDQ = 0x0,
+	NIX_TXSCH_LVL_TL4 = 0x1,
+	NIX_TXSCH_LVL_TL3 = 0x2,
+	NIX_TXSCH_LVL_TL2 = 0x3,
+	NIX_TXSCH_LVL_TL1 = 0x4,
+	NIX_TXSCH_LVL_CNT = 0x5,
+};
+
 /* NIX LSO format indices.
  * As of now TSO is the only one using, so statically assigning indices.
  */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index d6aca2e23d79..135f2638dd96 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -91,12 +91,28 @@ struct rvu_pfvf {
 	u8		mac_addr[ETH_ALEN]; /* MAC address of this PF/VF */
 };
 
+struct nix_txsch {
+	struct rsrc_bmap schq;
+	u8   lvl;
+	u16  *pfvf_map;
+};
+
+struct nix_hw {
+	struct nix_txsch txsch[NIX_TXSCH_LVL_CNT]; /* Tx schedulers */
+};
+
 struct rvu_hwinfo {
 	u8	total_pfs;   /* MAX RVU PFs HW supports */
 	u16	total_vfs;   /* Max RVU VFs HW supports */
 	u16	max_vfs_per_pf; /* Max VFs that can be attached to a PF */
+	u8	cgx;
+	u8	lmac_per_cgx;
+	u8	cgx_links;
+	u8	lbk_links;
+	u8	sdp_links;
 
 	struct rvu_block block[BLK_COUNT]; /* Block info */
+	struct nix_hw    *nix0;
 };
 
 struct rvu {
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 401f87fc5415..4d4cf5a1ac41 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -346,6 +346,60 @@ 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;
+	u64 cfg, reg;
+	int err, lvl;
+
+	/* Get scheduler queue count of each type and alloc
+	 * bitmap for each for alloc/free/attach operations.
+	 */
+	for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) {
+		txsch = &nix_hw->txsch[lvl];
+		txsch->lvl = lvl;
+		switch (lvl) {
+		case NIX_TXSCH_LVL_SMQ:
+			reg = NIX_AF_MDQ_CONST;
+			break;
+		case NIX_TXSCH_LVL_TL4:
+			reg = NIX_AF_TL4_CONST;
+			break;
+		case NIX_TXSCH_LVL_TL3:
+			reg = NIX_AF_TL3_CONST;
+			break;
+		case NIX_TXSCH_LVL_TL2:
+			reg = NIX_AF_TL2_CONST;
+			break;
+		case NIX_TXSCH_LVL_TL1:
+			reg = NIX_AF_TL1_CONST;
+			break;
+		}
+		cfg = rvu_read64(rvu, blkaddr, reg);
+		txsch->schq.max = cfg & 0xFFFF;
+		err = rvu_alloc_bitmap(&txsch->schq);
+		if (err)
+			return err;
+
+		/* Allocate memory for scheduler queues to
+		 * PF/VF pcifunc mapping info.
+		 */
+		txsch->pfvf_map = devm_kcalloc(rvu->dev, txsch->schq.max,
+					       sizeof(u16), GFP_KERNEL);
+		if (!txsch->pfvf_map)
+			return -ENOMEM;
+	}
+	return 0;
+}
+
 static int nix_calibrate_x2p(struct rvu *rvu, int blkaddr)
 {
 	int idx, err;
@@ -431,6 +485,7 @@ int rvu_nix_init(struct rvu *rvu)
 	struct rvu_hwinfo *hw = rvu->hw;
 	struct rvu_block *block;
 	int blkaddr, err;
+	u64 cfg;
 
 	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
 	if (blkaddr < 0)
@@ -442,6 +497,14 @@ int rvu_nix_init(struct rvu *rvu)
 	if (err)
 		return err;
 
+	/* Set num of links of each type */
+	cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST);
+	hw->cgx = (cfg >> 12) & 0xF;
+	hw->lmac_per_cgx = (cfg >> 8) & 0xF;
+	hw->cgx_links = hw->cgx * hw->lmac_per_cgx;
+	hw->lbk_links = 1;
+	hw->sdp_links = 1;
+
 	/* Initialize admin queue */
 	err = nix_aq_init(rvu, block);
 	if (err)
@@ -453,6 +516,16 @@ int rvu_nix_init(struct rvu *rvu)
 	/* Configure segmentation offload formats */
 	nix_setup_lso(rvu, blkaddr);
 
+	if (blkaddr == BLKADDR_NIX0) {
+		hw->nix0 = devm_kzalloc(rvu->dev,
+					sizeof(struct nix_hw), GFP_KERNEL);
+		if (!hw->nix0)
+			return -ENOMEM;
+
+		err = nix_setup_txschq(rvu, hw->nix0, blkaddr);
+		if (err)
+			return err;
+	}
 	return 0;
 }
 
@@ -460,7 +533,9 @@ void rvu_nix_freemem(struct rvu *rvu)
 {
 	struct rvu_hwinfo *hw = rvu->hw;
 	struct rvu_block *block;
-	int blkaddr;
+	struct nix_txsch *txsch;
+	struct nix_hw *nix_hw;
+	int blkaddr, lvl;
 
 	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
 	if (blkaddr < 0)
@@ -468,4 +543,15 @@ void rvu_nix_freemem(struct rvu *rvu)
 
 	block = &hw->block[blkaddr];
 	rvu_aq_free(rvu, block->aq);
+
+	if (blkaddr == BLKADDR_NIX0) {
+		nix_hw = get_nix_hw(rvu->hw, blkaddr);
+		if (!nix_hw)
+			return;
+
+		for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) {
+			txsch = &nix_hw->txsch[lvl];
+			kfree(txsch->schq.bmap);
+		}
+	}
 }

From ffb0abd7e9cb22714d86ad8a60babd7b05ebdc06 Mon Sep 17 00:00:00 2001
From: Sunil Goutham <sgoutham@marvell.com>
Date: Tue, 16 Oct 2018 16:57:19 +0530
Subject: [PATCH 15/16] 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>
---
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  36 +-
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |   3 +
 .../ethernet/marvell/octeontx2/af/rvu_nix.c   | 232 +++++++++-
 .../marvell/octeontx2/af/rvu_struct.h         | 418 ++++++++++++++++++
 4 files changed, 680 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 2f24e5d29cdc..3b44693e63ad 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/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 */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 135f2638dd96..caf652d4619c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/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 */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 4d4cf5a1ac41..fdc4d7bbcf6a 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/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;
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
index fe55f09e9ef3..c331b237a26f 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
+++ b/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,

From 557dd485eaebdc8a447ce1d5c8916ada739f66b4 Mon Sep 17 00:00:00 2001
From: Geetha sowjanya <gakula@marvell.com>
Date: Tue, 16 Oct 2018 16:57:20 +0530
Subject: [PATCH 16/16] octeontx2-af: Support for disabling NIX RQ/SQ/CQ
 contexts

This patch adds support for a RVU PF/VF to disable all RQ/SQ/CQ
contexts of a NIX LF via mbox. This will be used by PF/VF drivers
upon teardown or while freeing up HW resources.

A HW context which is not INIT'ed cannot be modified and a
RVU PF/VF driver may or may not INIT all the RQ/SQ/CQ contexts.
So a bitmap is introduced to keep track of enabled NIX RQ/SQ/CQ
contexts, so that only enabled hw contexts are disabled upon LF
teardown.

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |   3 +-
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |   6 +
 .../ethernet/marvell/octeontx2/af/rvu_nix.c   | 123 +++++++++++++++++-
 3 files changed, 129 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 3b44693e63ad..c339024d04e0 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -150,7 +150,8 @@ M(NPA_HWCTX_DISABLE,	0x403, hwctx_disable_req, msg_rsp)		\
 /* 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_AQ_ENQ,		0x8002, nix_aq_enq_req, nix_aq_enq_rsp)
+M(NIX_AQ_ENQ,		0x8002, nix_aq_enq_req, nix_aq_enq_rsp)		\
+M(NIX_HWCTX_DISABLE,	0x8003, hwctx_disable_req, msg_rsp)
 
 /* Messages initiated by AF (range 0xC00 - 0xDFF) */
 #define MBOX_UP_CGX_MESSAGES						\
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index caf652d4619c..b48b5af83f1d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -87,6 +87,9 @@ struct rvu_pfvf {
 	struct qmem	*rss_ctx;
 	struct qmem	*cq_ints_ctx;
 	struct qmem	*nix_qints_ctx;
+	unsigned long	*sq_bmap;
+	unsigned long	*rq_bmap;
+	unsigned long	*cq_bmap;
 
 	u8		mac_addr[ETH_ALEN]; /* MAC address of this PF/VF */
 };
@@ -264,4 +267,7 @@ int rvu_mbox_handler_NIX_LF_FREE(struct rvu *rvu, struct msg_req *req,
 int rvu_mbox_handler_NIX_AQ_ENQ(struct rvu *rvu,
 				struct nix_aq_enq_req *req,
 				struct nix_aq_enq_rsp *rsp);
+int rvu_mbox_handler_NIX_HWCTX_DISABLE(struct rvu *rvu,
+				       struct hwctx_disable_req *req,
+				       struct msg_rsp *rsp);
 #endif /* RVU_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index fdc4d7bbcf6a..214ca2c26ab4 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -140,6 +140,9 @@ static void nix_setup_lso(struct rvu *rvu, int blkaddr)
 
 static void nix_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
 {
+	kfree(pfvf->rq_bmap);
+	kfree(pfvf->sq_bmap);
+	kfree(pfvf->cq_bmap);
 	if (pfvf->rq_ctx)
 		qmem_free(rvu->dev, pfvf->rq_ctx);
 	if (pfvf->sq_ctx)
@@ -153,6 +156,9 @@ static void nix_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
 	if (pfvf->cq_ints_ctx)
 		qmem_free(rvu->dev, pfvf->cq_ints_ctx);
 
+	pfvf->rq_bmap = NULL;
+	pfvf->cq_bmap = NULL;
+	pfvf->sq_bmap = NULL;
 	pfvf->rq_ctx = NULL;
 	pfvf->sq_ctx = NULL;
 	pfvf->cq_ctx = NULL;
@@ -239,6 +245,7 @@ static int rvu_nix_aq_enq_inst(struct rvu *rvu, struct nix_aq_enq_req *req,
 	struct admin_queue *aq;
 	struct rvu_pfvf *pfvf;
 	void *ctx, *mask;
+	bool ena;
 	u64 cfg;
 
 	pfvf = rvu_get_pfvf(rvu, pcifunc);
@@ -354,9 +361,49 @@ static int rvu_nix_aq_enq_inst(struct rvu *rvu, struct nix_aq_enq_req *req,
 		return rc;
 	}
 
+	/* Set RQ/SQ/CQ bitmap if respective queue hw context is enabled */
+	if (req->op == NIX_AQ_INSTOP_INIT) {
+		if (req->ctype == NIX_AQ_CTYPE_RQ && req->rq.ena)
+			__set_bit(req->qidx, pfvf->rq_bmap);
+		if (req->ctype == NIX_AQ_CTYPE_SQ && req->sq.ena)
+			__set_bit(req->qidx, pfvf->sq_bmap);
+		if (req->ctype == NIX_AQ_CTYPE_CQ && req->cq.ena)
+			__set_bit(req->qidx, pfvf->cq_bmap);
+	}
+
+	if (req->op == NIX_AQ_INSTOP_WRITE) {
+		if (req->ctype == NIX_AQ_CTYPE_RQ) {
+			ena = (req->rq.ena & req->rq_mask.ena) |
+				(test_bit(req->qidx, pfvf->rq_bmap) &
+				~req->rq_mask.ena);
+			if (ena)
+				__set_bit(req->qidx, pfvf->rq_bmap);
+			else
+				__clear_bit(req->qidx, pfvf->rq_bmap);
+		}
+		if (req->ctype == NIX_AQ_CTYPE_SQ) {
+			ena = (req->rq.ena & req->sq_mask.ena) |
+				(test_bit(req->qidx, pfvf->sq_bmap) &
+				~req->sq_mask.ena);
+			if (ena)
+				__set_bit(req->qidx, pfvf->sq_bmap);
+			else
+				__clear_bit(req->qidx, pfvf->sq_bmap);
+		}
+		if (req->ctype == NIX_AQ_CTYPE_CQ) {
+			ena = (req->rq.ena & req->cq_mask.ena) |
+				(test_bit(req->qidx, pfvf->cq_bmap) &
+				~req->cq_mask.ena);
+			if (ena)
+				__set_bit(req->qidx, pfvf->cq_bmap);
+			else
+				__clear_bit(req->qidx, pfvf->cq_bmap);
+		}
+	}
+
 	if (rsp) {
 		/* Copy read context into mailbox */
-		if (req->op == NIX_AQ_INSTOP_READ && !rc) {
+		if (req->op == NIX_AQ_INSTOP_READ) {
 			if (req->ctype == NIX_AQ_CTYPE_RQ)
 				memcpy(&rsp->rq, ctx,
 				       sizeof(struct nix_rq_ctx_s));
@@ -373,7 +420,60 @@ static int rvu_nix_aq_enq_inst(struct rvu *rvu, struct nix_aq_enq_req *req,
 	}
 
 	spin_unlock(&aq->lock);
-	return rc;
+	return 0;
+}
+
+static int nix_lf_hwctx_disable(struct rvu *rvu, struct hwctx_disable_req *req)
+{
+	struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);
+	struct nix_aq_enq_req aq_req;
+	unsigned long *bmap;
+	int qidx, q_cnt = 0;
+	int err = 0, rc;
+
+	if (!pfvf->cq_ctx || !pfvf->sq_ctx || !pfvf->rq_ctx)
+		return NIX_AF_ERR_AQ_ENQUEUE;
+
+	memset(&aq_req, 0, sizeof(struct nix_aq_enq_req));
+	aq_req.hdr.pcifunc = req->hdr.pcifunc;
+
+	if (req->ctype == NIX_AQ_CTYPE_CQ) {
+		aq_req.cq.ena = 0;
+		aq_req.cq_mask.ena = 1;
+		q_cnt = pfvf->cq_ctx->qsize;
+		bmap = pfvf->cq_bmap;
+	}
+	if (req->ctype == NIX_AQ_CTYPE_SQ) {
+		aq_req.sq.ena = 0;
+		aq_req.sq_mask.ena = 1;
+		q_cnt = pfvf->sq_ctx->qsize;
+		bmap = pfvf->sq_bmap;
+	}
+	if (req->ctype == NIX_AQ_CTYPE_RQ) {
+		aq_req.rq.ena = 0;
+		aq_req.rq_mask.ena = 1;
+		q_cnt = pfvf->rq_ctx->qsize;
+		bmap = pfvf->rq_bmap;
+	}
+
+	aq_req.ctype = req->ctype;
+	aq_req.op = NIX_AQ_INSTOP_WRITE;
+
+	for (qidx = 0; qidx < q_cnt; qidx++) {
+		if (!test_bit(qidx, bmap))
+			continue;
+		aq_req.qidx = qidx;
+		rc = rvu_nix_aq_enq_inst(rvu, &aq_req, NULL);
+		if (rc) {
+			err = rc;
+			dev_err(rvu->dev, "Failed to disable %s:%d context\n",
+				(req->ctype == NIX_AQ_CTYPE_CQ) ?
+				"CQ" : ((req->ctype == NIX_AQ_CTYPE_RQ) ?
+				"RQ" : "SQ"), qidx);
+		}
+	}
+
+	return err;
 }
 
 int rvu_mbox_handler_NIX_AQ_ENQ(struct rvu *rvu,
@@ -383,6 +483,13 @@ int rvu_mbox_handler_NIX_AQ_ENQ(struct rvu *rvu,
 	return rvu_nix_aq_enq_inst(rvu, req, rsp);
 }
 
+int rvu_mbox_handler_NIX_HWCTX_DISABLE(struct rvu *rvu,
+				       struct hwctx_disable_req *req,
+				       struct msg_rsp *rsp)
+{
+	return nix_lf_hwctx_disable(rvu, req);
+}
+
 int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
 				  struct nix_lf_alloc_req *req,
 				  struct nix_lf_alloc_rsp *rsp)
@@ -437,6 +544,10 @@ int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
 	if (err)
 		goto free_mem;
 
+	pfvf->rq_bmap = kcalloc(req->rq_cnt, sizeof(long), GFP_KERNEL);
+	if (!pfvf->rq_bmap)
+		goto free_mem;
+
 	rvu_write64(rvu, blkaddr, NIX_AF_LFX_RQS_BASE(nixlf),
 		    (u64)pfvf->rq_ctx->iova);
 
@@ -450,6 +561,10 @@ int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
 	if (err)
 		goto free_mem;
 
+	pfvf->sq_bmap = kcalloc(req->sq_cnt, sizeof(long), GFP_KERNEL);
+	if (!pfvf->sq_bmap)
+		goto free_mem;
+
 	rvu_write64(rvu, blkaddr, NIX_AF_LFX_SQS_BASE(nixlf),
 		    (u64)pfvf->sq_ctx->iova);
 	cfg = BIT_ULL(36) | (req->sq_cnt - 1);
@@ -461,6 +576,10 @@ int rvu_mbox_handler_NIX_LF_ALLOC(struct rvu *rvu,
 	if (err)
 		goto free_mem;
 
+	pfvf->cq_bmap = kcalloc(req->cq_cnt, sizeof(long), GFP_KERNEL);
+	if (!pfvf->cq_bmap)
+		goto free_mem;
+
 	rvu_write64(rvu, blkaddr, NIX_AF_LFX_CQS_BASE(nixlf),
 		    (u64)pfvf->cq_ctx->iova);
 	cfg = BIT_ULL(36) | (req->cq_cnt - 1);