Merge branch 'octeontx2-af-cn10k'

Srujana Challa says:

====================
Add support for CN10K CPT block

OcteonTX3 (CN10K) silicon is a Marvell next-gen silicon. CN10K CPT
introduces new features like reassembly support and some feature
enhancements.
This patchset adds new mailbox messages and some minor changes to
existing mailbox messages to support CN10K CPT.

v1-v2
Fixed sparse warnings.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 266 insertions, 8 deletions

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 55629c66586e..cedb2616c509 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -177,6 +177,9 @@ M(CPT_LF_ALLOC,		0xA00, cpt_lf_alloc, cpt_lf_alloc_req_msg,	\
 M(CPT_LF_FREE,		0xA01, cpt_lf_free, msg_req, msg_rsp)		\
 M(CPT_RD_WR_REGISTER,	0xA02, cpt_rd_wr_register,  cpt_rd_wr_reg_msg,	\
 			       cpt_rd_wr_reg_msg)			\
+M(CPT_STATS,            0xA05, cpt_sts, cpt_sts_req, cpt_sts_rsp)	\
+M(CPT_RXC_TIME_CFG,     0xA06, cpt_rxc_time_cfg, cpt_rxc_time_cfg_req,  \
+			       msg_rsp)                                 \
 /* NPC mbox IDs (range 0x6000 - 0x7FFF) */				\
 M(NPC_MCAM_ALLOC_ENTRY,	0x6000, npc_mcam_alloc_entry, npc_mcam_alloc_entry_req,\
 				npc_mcam_alloc_entry_rsp)		\
@@ -1255,4 +1258,62 @@ struct cpt_lf_alloc_req_msg {
 	int blkaddr;
 };
 
+/* Mailbox message request and response format for CPT stats. */
+struct cpt_sts_req {
+	struct mbox_msghdr hdr;
+	u8 blkaddr;
+};
+
+struct cpt_sts_rsp {
+	struct mbox_msghdr hdr;
+	u64 inst_req_pc;
+	u64 inst_lat_pc;
+	u64 rd_req_pc;
+	u64 rd_lat_pc;
+	u64 rd_uc_pc;
+	u64 active_cycles_pc;
+	u64 ctx_mis_pc;
+	u64 ctx_hit_pc;
+	u64 ctx_aop_pc;
+	u64 ctx_aop_lat_pc;
+	u64 ctx_ifetch_pc;
+	u64 ctx_ifetch_lat_pc;
+	u64 ctx_ffetch_pc;
+	u64 ctx_ffetch_lat_pc;
+	u64 ctx_wback_pc;
+	u64 ctx_wback_lat_pc;
+	u64 ctx_psh_pc;
+	u64 ctx_psh_lat_pc;
+	u64 ctx_err;
+	u64 ctx_enc_id;
+	u64 ctx_flush_timer;
+	u64 rxc_time;
+	u64 rxc_time_cfg;
+	u64 rxc_active_sts;
+	u64 rxc_zombie_sts;
+	u64 busy_sts_ae;
+	u64 free_sts_ae;
+	u64 busy_sts_se;
+	u64 free_sts_se;
+	u64 busy_sts_ie;
+	u64 free_sts_ie;
+	u64 exe_err_info;
+	u64 cptclk_cnt;
+	u64 diag;
+	u64 rxc_dfrg;
+	u64 x2p_link_cfg0;
+	u64 x2p_link_cfg1;
+};
+
+/* Mailbox message request format to configure reassembly timeout. */
+struct cpt_rxc_time_cfg_req {
+	struct mbox_msghdr hdr;
+	int blkaddr;
+	u32 step;
+	u16 zombie_thres;
+	u16 zombie_limit;
+	u16 active_thres;
+	u16 active_limit;
+};
+
 #endif /* MBOX_H */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
index 0945c3a3b180..89253f7bdadb 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /* Copyright (C) 2020 Marvell. */
 
+#include <linux/bitfield.h>
 #include <linux/pci.h>
 #include "rvu_struct.h"
 #include "rvu_reg.h"
@@ -9,6 +10,28 @@
 
 /* CPT PF device id */
 #define	PCI_DEVID_OTX2_CPT_PF	0xA0FD
+#define	PCI_DEVID_OTX2_CPT10K_PF 0xA0F2
+
+/* Length of initial context fetch in 128 byte words */
+#define CPT_CTX_ILEN    2
+
+#define cpt_get_eng_sts(e_min, e_max, rsp, etype)                   \
+({                                                                  \
+	u64 free_sts = 0, busy_sts = 0;                             \
+	typeof(rsp) _rsp = rsp;                                     \
+	u32 e, i;                                                   \
+								    \
+	for (e = (e_min), i = 0; e < (e_max); e++, i++) {           \
+		reg = rvu_read64(rvu, blkaddr, CPT_AF_EXEX_STS(e)); \
+		if (reg & 0x1)                                      \
+			busy_sts |= 1ULL << i;                      \
+								    \
+		if (reg & 0x2)                                      \
+			free_sts |= 1ULL << i;                      \
+	}                                                           \
+	(_rsp)->busy_sts_##etype = busy_sts;                        \
+	(_rsp)->free_sts_##etype = free_sts;                        \
+})
 
 static int get_cpt_pf_num(struct rvu *rvu)
 {
@@ -21,7 +44,8 @@ static int get_cpt_pf_num(struct rvu *rvu)
 		if (!pdev)
 			continue;
 
-		if (pdev->device == PCI_DEVID_OTX2_CPT_PF) {
+		if (pdev->device == PCI_DEVID_OTX2_CPT_PF ||
+		    pdev->device == PCI_DEVID_OTX2_CPT10K_PF) {
 			cpt_pf_num = i;
 			put_device(&pdev->dev);
 			break;
@@ -55,6 +79,17 @@ static bool is_cpt_vf(struct rvu *rvu, u16 pcifunc)
 	return true;
 }
 
+static int validate_and_get_cpt_blkaddr(int req_blkaddr)
+{
+	int blkaddr;
+
+	blkaddr = req_blkaddr ? req_blkaddr : BLKADDR_CPT0;
+	if (blkaddr != BLKADDR_CPT0 && blkaddr != BLKADDR_CPT1)
+		return -EINVAL;
+
+	return blkaddr;
+}
+
 int rvu_mbox_handler_cpt_lf_alloc(struct rvu *rvu,
 				  struct cpt_lf_alloc_req_msg *req,
 				  struct msg_rsp *rsp)
@@ -65,9 +100,9 @@ int rvu_mbox_handler_cpt_lf_alloc(struct rvu *rvu,
 	int num_lfs, slot;
 	u64 val;
 
-	blkaddr = req->blkaddr ? req->blkaddr : BLKADDR_CPT0;
-	if (blkaddr != BLKADDR_CPT0 && blkaddr != BLKADDR_CPT1)
-		return -ENODEV;
+	blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr);
+	if (blkaddr < 0)
+		return blkaddr;
 
 	if (req->eng_grpmsk == 0x0)
 		return CPT_AF_ERR_GRP_INVALID;
@@ -103,6 +138,9 @@ int rvu_mbox_handler_cpt_lf_alloc(struct rvu *rvu,
 
 		/* Set CPT LF group and priority */
 		val = (u64)req->eng_grpmsk << 48 | 1;
+		if (!is_rvu_otx2(rvu))
+			val |= (CPT_CTX_ILEN << 17);
+
 		rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf), val);
 
 		/* Set CPT LF NIX_PF_FUNC and SSO_PF_FUNC */
@@ -162,7 +200,9 @@ static bool is_valid_offset(struct rvu *rvu, struct cpt_rd_wr_reg_msg *req)
 	struct rvu_block *block;
 	struct rvu_pfvf *pfvf;
 
-	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_CPT, 0);
+	blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr);
+	if (blkaddr < 0)
+		return blkaddr;
 
 	/* Registers that can be accessed from PF/VF */
 	if ((offset & 0xFF000) ==  CPT_AF_LFX_CTL(0) ||
@@ -192,6 +232,7 @@ static bool is_valid_offset(struct rvu *rvu, struct cpt_rd_wr_reg_msg *req)
 		case CPT_AF_PF_FUNC:
 		case CPT_AF_BLK_RST:
 		case CPT_AF_CONSTANTS1:
+		case CPT_AF_CTX_FLUSH_TIMER:
 			return true;
 		}
 
@@ -217,9 +258,9 @@ int rvu_mbox_handler_cpt_rd_wr_register(struct rvu *rvu,
 {
 	int blkaddr;
 
-	blkaddr = req->blkaddr ? req->blkaddr : BLKADDR_CPT0;
-	if (blkaddr != BLKADDR_CPT0 && blkaddr != BLKADDR_CPT1)
-		return -ENODEV;
+	blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr);
+	if (blkaddr < 0)
+		return blkaddr;
 
 	/* This message is accepted only if sent from CPT PF/VF */
 	if (!is_cpt_pf(rvu, req->hdr.pcifunc) &&
@@ -241,6 +282,141 @@ int rvu_mbox_handler_cpt_rd_wr_register(struct rvu *rvu,
 	return 0;
 }
 
+static void get_ctx_pc(struct rvu *rvu, struct cpt_sts_rsp *rsp, int blkaddr)
+{
+	if (is_rvu_otx2(rvu))
+		return;
+
+	rsp->ctx_mis_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_MIS_PC);
+	rsp->ctx_hit_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_HIT_PC);
+	rsp->ctx_aop_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_AOP_PC);
+	rsp->ctx_aop_lat_pc = rvu_read64(rvu, blkaddr,
+					 CPT_AF_CTX_AOP_LATENCY_PC);
+	rsp->ctx_ifetch_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_IFETCH_PC);
+	rsp->ctx_ifetch_lat_pc = rvu_read64(rvu, blkaddr,
+					    CPT_AF_CTX_IFETCH_LATENCY_PC);
+	rsp->ctx_ffetch_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_FFETCH_PC);
+	rsp->ctx_ffetch_lat_pc = rvu_read64(rvu, blkaddr,
+					    CPT_AF_CTX_FFETCH_LATENCY_PC);
+	rsp->ctx_wback_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_FFETCH_PC);
+	rsp->ctx_wback_lat_pc = rvu_read64(rvu, blkaddr,
+					   CPT_AF_CTX_FFETCH_LATENCY_PC);
+	rsp->ctx_psh_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_FFETCH_PC);
+	rsp->ctx_psh_lat_pc = rvu_read64(rvu, blkaddr,
+					 CPT_AF_CTX_FFETCH_LATENCY_PC);
+	rsp->ctx_err = rvu_read64(rvu, blkaddr, CPT_AF_CTX_ERR);
+	rsp->ctx_enc_id = rvu_read64(rvu, blkaddr, CPT_AF_CTX_ENC_ID);
+	rsp->ctx_flush_timer = rvu_read64(rvu, blkaddr, CPT_AF_CTX_FLUSH_TIMER);
+
+	rsp->rxc_time = rvu_read64(rvu, blkaddr, CPT_AF_RXC_TIME);
+	rsp->rxc_time_cfg = rvu_read64(rvu, blkaddr, CPT_AF_RXC_TIME_CFG);
+	rsp->rxc_active_sts = rvu_read64(rvu, blkaddr, CPT_AF_RXC_ACTIVE_STS);
+	rsp->rxc_zombie_sts = rvu_read64(rvu, blkaddr, CPT_AF_RXC_ZOMBIE_STS);
+	rsp->rxc_dfrg = rvu_read64(rvu, blkaddr, CPT_AF_RXC_DFRG);
+	rsp->x2p_link_cfg0 = rvu_read64(rvu, blkaddr, CPT_AF_X2PX_LINK_CFG(0));
+	rsp->x2p_link_cfg1 = rvu_read64(rvu, blkaddr, CPT_AF_X2PX_LINK_CFG(1));
+}
+
+static void get_eng_sts(struct rvu *rvu, struct cpt_sts_rsp *rsp, int blkaddr)
+{
+	u16 max_ses, max_ies, max_aes;
+	u32 e_min = 0, e_max = 0;
+	u64 reg;
+
+	reg = rvu_read64(rvu, blkaddr, CPT_AF_CONSTANTS1);
+	max_ses = reg & 0xffff;
+	max_ies = (reg >> 16) & 0xffff;
+	max_aes = (reg >> 32) & 0xffff;
+
+	/* Get AE status */
+	e_min = max_ses + max_ies;
+	e_max = max_ses + max_ies + max_aes;
+	cpt_get_eng_sts(e_min, e_max, rsp, ae);
+	/* Get SE status */
+	e_min = 0;
+	e_max = max_ses;
+	cpt_get_eng_sts(e_min, e_max, rsp, se);
+	/* Get IE status */
+	e_min = max_ses;
+	e_max = max_ses + max_ies;
+	cpt_get_eng_sts(e_min, e_max, rsp, ie);
+}
+
+int rvu_mbox_handler_cpt_sts(struct rvu *rvu, struct cpt_sts_req *req,
+			     struct cpt_sts_rsp *rsp)
+{
+	int blkaddr;
+
+	blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr);
+	if (blkaddr < 0)
+		return blkaddr;
+
+	/* This message is accepted only if sent from CPT PF/VF */
+	if (!is_cpt_pf(rvu, req->hdr.pcifunc) &&
+	    !is_cpt_vf(rvu, req->hdr.pcifunc))
+		return CPT_AF_ERR_ACCESS_DENIED;
+
+	get_ctx_pc(rvu, rsp, blkaddr);
+
+	/* Get CPT engines status */
+	get_eng_sts(rvu, rsp, blkaddr);
+
+	/* Read CPT instruction PC registers */
+	rsp->inst_req_pc = rvu_read64(rvu, blkaddr, CPT_AF_INST_REQ_PC);
+	rsp->inst_lat_pc = rvu_read64(rvu, blkaddr, CPT_AF_INST_LATENCY_PC);
+	rsp->rd_req_pc = rvu_read64(rvu, blkaddr, CPT_AF_RD_REQ_PC);
+	rsp->rd_lat_pc = rvu_read64(rvu, blkaddr, CPT_AF_RD_LATENCY_PC);
+	rsp->rd_uc_pc = rvu_read64(rvu, blkaddr, CPT_AF_RD_UC_PC);
+	rsp->active_cycles_pc = rvu_read64(rvu, blkaddr,
+					   CPT_AF_ACTIVE_CYCLES_PC);
+	rsp->exe_err_info = rvu_read64(rvu, blkaddr, CPT_AF_EXE_ERR_INFO);
+	rsp->cptclk_cnt = rvu_read64(rvu, blkaddr, CPT_AF_CPTCLK_CNT);
+	rsp->diag = rvu_read64(rvu, blkaddr, CPT_AF_DIAG);
+
+	return 0;
+}
+
+#define RXC_ZOMBIE_THRES  GENMASK_ULL(59, 48)
+#define RXC_ZOMBIE_LIMIT  GENMASK_ULL(43, 32)
+#define RXC_ACTIVE_THRES  GENMASK_ULL(27, 16)
+#define RXC_ACTIVE_LIMIT  GENMASK_ULL(11, 0)
+#define RXC_ACTIVE_COUNT  GENMASK_ULL(60, 48)
+#define RXC_ZOMBIE_COUNT  GENMASK_ULL(60, 48)
+
+static void cpt_rxc_time_cfg(struct rvu *rvu, struct cpt_rxc_time_cfg_req *req,
+			     int blkaddr)
+{
+	u64 dfrg_reg;
+
+	dfrg_reg = FIELD_PREP(RXC_ZOMBIE_THRES, req->zombie_thres);
+	dfrg_reg |= FIELD_PREP(RXC_ZOMBIE_LIMIT, req->zombie_limit);
+	dfrg_reg |= FIELD_PREP(RXC_ACTIVE_THRES, req->active_thres);
+	dfrg_reg |= FIELD_PREP(RXC_ACTIVE_LIMIT, req->active_limit);
+
+	rvu_write64(rvu, blkaddr, CPT_AF_RXC_TIME_CFG, req->step);
+	rvu_write64(rvu, blkaddr, CPT_AF_RXC_DFRG, dfrg_reg);
+}
+
+int rvu_mbox_handler_cpt_rxc_time_cfg(struct rvu *rvu,
+				      struct cpt_rxc_time_cfg_req *req,
+				      struct msg_rsp *rsp)
+{
+	int blkaddr;
+
+	blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr);
+	if (blkaddr < 0)
+		return blkaddr;
+
+	/* This message is accepted only if sent from CPT PF/VF */
+	if (!is_cpt_pf(rvu, req->hdr.pcifunc) &&
+	    !is_cpt_vf(rvu, req->hdr.pcifunc))
+		return CPT_AF_ERR_ACCESS_DENIED;
+
+	cpt_rxc_time_cfg(rvu, req, blkaddr);
+
+	return 0;
+}
+
 #define INPROG_INFLIGHT(reg)    ((reg) & 0x1FF)
 #define INPROG_GRB_PARTIAL(reg) ((reg) & BIT_ULL(31))
 #define INPROG_GRB(reg)         (((reg) >> 32) & 0xFF)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
index 3e401fd8ac63..ac71c0f2f960 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
@@ -494,6 +494,27 @@
 #define CPT_AF_RAS_INT_W1S              (0x47028)
 #define CPT_AF_RAS_INT_ENA_W1S          (0x47030)
 #define CPT_AF_RAS_INT_ENA_W1C          (0x47038)
+#define CPT_AF_CTX_FLUSH_TIMER          (0x48000ull)
+#define CPT_AF_CTX_ERR                  (0x48008ull)
+#define CPT_AF_CTX_ENC_ID               (0x48010ull)
+#define CPT_AF_CTX_MIS_PC		(0x49400ull)
+#define CPT_AF_CTX_HIT_PC		(0x49408ull)
+#define CPT_AF_CTX_AOP_PC		(0x49410ull)
+#define CPT_AF_CTX_AOP_LATENCY_PC       (0x49418ull)
+#define CPT_AF_CTX_IFETCH_PC            (0x49420ull)
+#define CPT_AF_CTX_IFETCH_LATENCY_PC    (0x49428ull)
+#define CPT_AF_CTX_FFETCH_PC            (0x49430ull)
+#define CPT_AF_CTX_FFETCH_LATENCY_PC    (0x49438ull)
+#define CPT_AF_CTX_WBACK_PC             (0x49440ull)
+#define CPT_AF_CTX_WBACK_LATENCY_PC     (0x49448ull)
+#define CPT_AF_CTX_PSH_PC               (0x49450ull)
+#define CPT_AF_CTX_PSH_LATENCY_PC       (0x49458ull)
+#define CPT_AF_RXC_TIME                 (0x50010ull)
+#define CPT_AF_RXC_TIME_CFG             (0x50018ull)
+#define CPT_AF_RXC_DFRG                 (0x50020ull)
+#define CPT_AF_RXC_ACTIVE_STS           (0x50028ull)
+#define CPT_AF_RXC_ZOMBIE_STS           (0x50030ull)
+#define CPT_AF_X2PX_LINK_CFG(a)         (0x51000ull | (u64)(a) << 3)
 
 #define AF_BAR2_ALIASX(a, b)            (0x9100000ull | (a) << 12 | (b))
 #define CPT_AF_BAR2_SEL                 0x9000000