crypto: octeontx2 - hardware configuration for inline IPsec

On OcteonTX2/OctoenTX3 variants of silicon, Admin function (AF) handles resource allocation and configuration for PFs and their VFs. PFs request the AF directly, via mailboxes. Unlike PFs, VFs cannot send a mailbox request directly. A VF sends mailbox messages to its parent PF, with which it shares a mailbox region. The PF then forwards these messages to the AF. This patch adds code to configure inline-IPsec HW resources for CPT VFs as CPT VFs cannot send a mailbox request directly to AF. Signed-off-by: Srujana Challa <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
wafgo · May 12, 2023 · a4855a8 · a4855a8
1 parent 5c55311
commit a4855a8
Show file tree

Hide file tree

Showing 10 changed files with 261 additions and 38 deletions.
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h b/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h
@@ -40,10 +40,25 @@ enum otx2_cpt_eng_type {
 };
 
 /* Take mbox id from end of CPT mbox range in AF (range 0xA00 - 0xBFF) */
+#define MBOX_MSG_RX_INLINE_IPSEC_LF_CFG 0xBFE
 #define MBOX_MSG_GET_ENG_GRP_NUM        0xBFF
 #define MBOX_MSG_GET_CAPS               0xBFD
 #define MBOX_MSG_GET_KVF_LIMITS         0xBFC
 
+/*
+ * Message request to config cpt lf for inline inbound ipsec.
+ * This message is only used between CPT PF <-> CPT VF
+ */
+struct otx2_cpt_rx_inline_lf_cfg {
+	struct mbox_msghdr hdr;
+	u16 sso_pf_func;
+	u16 param1;
+	u16 param2;
+	u16 opcode;
+	u32 credit;
+	u32 reserved;
+};
+
 /*
  * Message request and response to get engine group number
  * which has attached a given type of engines (SE, AE, IE)

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cpt_mbox_common.c b/drivers/crypto/marvell/octeontx2/otx2_cpt_mbox_common.c
@@ -141,6 +141,8 @@ int otx2_cpt_attach_rscrs_msg(struct otx2_cptlfs_info *lfs)
 	req->hdr.sig = OTX2_MBOX_REQ_SIG;
 	req->hdr.pcifunc = 0;
 	req->cptlfs = lfs->lfs_num;
+	req->cpt_blkaddr = lfs->blkaddr;
+	req->modify = 1;
 	ret = otx2_cpt_send_mbox_msg(mbox, lfs->pdev);
 	if (ret)
 		return ret;
@@ -168,6 +170,7 @@ int otx2_cpt_detach_rsrcs_msg(struct otx2_cptlfs_info *lfs)
 	req->hdr.id = MBOX_MSG_DETACH_RESOURCES;
 	req->hdr.sig = OTX2_MBOX_REQ_SIG;
 	req->hdr.pcifunc = 0;
+	req->cptlfs = 1;
 	ret = otx2_cpt_send_mbox_msg(mbox, lfs->pdev);
 	if (ret)
 		return ret;

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptlf.c b/drivers/crypto/marvell/octeontx2/otx2_cptlf.c
@@ -13,21 +13,21 @@ static void cptlf_do_set_done_time_wait(struct otx2_cptlf_info *lf,
 {
 	union otx2_cptx_lf_done_wait done_wait;
 
-	done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
-				      OTX2_CPT_LF_DONE_WAIT);
+	done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, lf->lfs->blkaddr,
+				      lf->slot, OTX2_CPT_LF_DONE_WAIT);
 	done_wait.s.time_wait = time_wait;
-	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	otx2_cpt_write64(lf->lfs->reg_base, lf->lfs->blkaddr, lf->slot,
 			 OTX2_CPT_LF_DONE_WAIT, done_wait.u);
 }
 
 static void cptlf_do_set_done_num_wait(struct otx2_cptlf_info *lf, int num_wait)
 {
 	union otx2_cptx_lf_done_wait done_wait;
 
-	done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
-				      OTX2_CPT_LF_DONE_WAIT);
+	done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, lf->lfs->blkaddr,
+				      lf->slot, OTX2_CPT_LF_DONE_WAIT);
 	done_wait.s.num_wait = num_wait;
-	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	otx2_cpt_write64(lf->lfs->reg_base, lf->lfs->blkaddr, lf->slot,
 			 OTX2_CPT_LF_DONE_WAIT, done_wait.u);
 }
 
@@ -147,7 +147,7 @@ static void cptlf_set_misc_intrs(struct otx2_cptlfs_info *lfs, u8 enable)
 	irq_misc.s.nwrp = 0x1;
 
 	for (slot = 0; slot < lfs->lfs_num; slot++)
-		otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot, reg,
+		otx2_cpt_write64(lfs->reg_base, lfs->blkaddr, slot, reg,
 				 irq_misc.u);
 }
 
@@ -157,7 +157,7 @@ static void cptlf_enable_intrs(struct otx2_cptlfs_info *lfs)
 
 	/* Enable done interrupts */
 	for (slot = 0; slot < lfs->lfs_num; slot++)
-		otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot,
+		otx2_cpt_write64(lfs->reg_base, lfs->blkaddr, slot,
 				 OTX2_CPT_LF_DONE_INT_ENA_W1S, 0x1);
 	/* Enable Misc interrupts */
 	cptlf_set_misc_intrs(lfs, true);
@@ -168,7 +168,7 @@ static void cptlf_disable_intrs(struct otx2_cptlfs_info *lfs)
 	int slot;
 
 	for (slot = 0; slot < lfs->lfs_num; slot++)
-		otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot,
+		otx2_cpt_write64(lfs->reg_base, lfs->blkaddr, slot,
 				 OTX2_CPT_LF_DONE_INT_ENA_W1C, 0x1);
 	cptlf_set_misc_intrs(lfs, false);
 }
@@ -177,7 +177,7 @@ static inline int cptlf_read_done_cnt(struct otx2_cptlf_info *lf)
 {
 	union otx2_cptx_lf_done irq_cnt;
 
-	irq_cnt.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	irq_cnt.u = otx2_cpt_read64(lf->lfs->reg_base, lf->lfs->blkaddr, lf->slot,
 				    OTX2_CPT_LF_DONE);
 	return irq_cnt.s.done;
 }
@@ -189,8 +189,8 @@ static irqreturn_t cptlf_misc_intr_handler(int __always_unused irq, void *arg)
 	struct device *dev;
 
 	dev = &lf->lfs->pdev->dev;
-	irq_misc.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
-				     OTX2_CPT_LF_MISC_INT);
+	irq_misc.u = otx2_cpt_read64(lf->lfs->reg_base, lf->lfs->blkaddr,
+				     lf->slot, OTX2_CPT_LF_MISC_INT);
 	irq_misc_ack.u = 0x0;
 
 	if (irq_misc.s.fault) {
@@ -222,7 +222,7 @@ static irqreturn_t cptlf_misc_intr_handler(int __always_unused irq, void *arg)
 	}
 
 	/* Acknowledge interrupts */
-	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	otx2_cpt_write64(lf->lfs->reg_base, lf->lfs->blkaddr, lf->slot,
 			 OTX2_CPT_LF_MISC_INT, irq_misc_ack.u);
 
 	return IRQ_HANDLED;
@@ -237,13 +237,13 @@ static irqreturn_t cptlf_done_intr_handler(int irq, void *arg)
 	/* Read the number of completed requests */
 	irq_cnt = cptlf_read_done_cnt(lf);
 	if (irq_cnt) {
-		done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0,
+		done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, lf->lfs->blkaddr,
 					      lf->slot, OTX2_CPT_LF_DONE_WAIT);
 		/* Acknowledge the number of completed requests */
-		otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+		otx2_cpt_write64(lf->lfs->reg_base, lf->lfs->blkaddr, lf->slot,
 				 OTX2_CPT_LF_DONE_ACK, irq_cnt);
 
-		otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+		otx2_cpt_write64(lf->lfs->reg_base, lf->lfs->blkaddr, lf->slot,
 				 OTX2_CPT_LF_DONE_WAIT, done_wait.u);
 		if (unlikely(!lf->wqe)) {
 			dev_err(&lf->lfs->pdev->dev, "No work for LF %d\n",
@@ -393,7 +393,7 @@ int otx2_cptlf_init(struct otx2_cptlfs_info *lfs, u8 eng_grp_mask, int pri,
 						 OTX2_CPT_LMT_LF_LMTLINEX(0));
 
 		lfs->lf[slot].ioreg = lfs->reg_base +
-			OTX2_CPT_RVU_FUNC_ADDR_S(BLKADDR_CPT0, slot,
+			OTX2_CPT_RVU_FUNC_ADDR_S(lfs->blkaddr, slot,
 						 OTX2_CPT_LF_NQX(0));
 	}
 	/* Send request to attach LFs */

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptlf.h b/drivers/crypto/marvell/octeontx2/otx2_cptlf.h
@@ -180,7 +180,7 @@ static inline void otx2_cptlf_set_iqueues_base_addr(
 
 	for (slot = 0; slot < lfs->lfs_num; slot++) {
 		lf_q_base.u = lfs->lf[slot].iqueue.dma_addr;
-		otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot,
+		otx2_cpt_write64(lfs->reg_base, lfs->blkaddr, slot,
 				 OTX2_CPT_LF_Q_BASE, lf_q_base.u);
 	}
 }
@@ -191,7 +191,7 @@ static inline void otx2_cptlf_do_set_iqueue_size(struct otx2_cptlf_info *lf)
 
 	lf_q_size.s.size_div40 = OTX2_CPT_SIZE_DIV40 +
 				 OTX2_CPT_EXTRA_SIZE_DIV40;
-	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	otx2_cpt_write64(lf->lfs->reg_base, lf->lfs->blkaddr, lf->slot,
 			 OTX2_CPT_LF_Q_SIZE, lf_q_size.u);
 }
 
@@ -207,15 +207,16 @@ static inline void otx2_cptlf_do_disable_iqueue(struct otx2_cptlf_info *lf)
 {
 	union otx2_cptx_lf_ctl lf_ctl = { .u = 0x0 };
 	union otx2_cptx_lf_inprog lf_inprog;
+	u8 blkaddr = lf->lfs->blkaddr;
 	int timeout = 20;
 
 	/* Disable instructions enqueuing */
-	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	otx2_cpt_write64(lf->lfs->reg_base, blkaddr, lf->slot,
 			 OTX2_CPT_LF_CTL, lf_ctl.u);
 
 	/* Wait for instruction queue to become empty */
 	do {
-		lf_inprog.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0,
+		lf_inprog.u = otx2_cpt_read64(lf->lfs->reg_base, blkaddr,
 					      lf->slot, OTX2_CPT_LF_INPROG);
 		if (!lf_inprog.s.inflight)
 			break;
@@ -234,7 +235,7 @@ static inline void otx2_cptlf_do_disable_iqueue(struct otx2_cptlf_info *lf)
 	 * the queue should be empty at this point
 	 */
 	lf_inprog.s.eena = 0x0;
-	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	otx2_cpt_write64(lf->lfs->reg_base, blkaddr, lf->slot,
 			 OTX2_CPT_LF_INPROG, lf_inprog.u);
 }
 
@@ -249,14 +250,15 @@ static inline void otx2_cptlf_disable_iqueues(struct otx2_cptlfs_info *lfs)
 static inline void otx2_cptlf_set_iqueue_enq(struct otx2_cptlf_info *lf,
 					     bool enable)
 {
+	u8 blkaddr = lf->lfs->blkaddr;
 	union otx2_cptx_lf_ctl lf_ctl;
 
-	lf_ctl.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	lf_ctl.u = otx2_cpt_read64(lf->lfs->reg_base, blkaddr, lf->slot,
 				   OTX2_CPT_LF_CTL);
 
 	/* Set iqueue's enqueuing */
 	lf_ctl.s.ena = enable ? 0x1 : 0x0;
-	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	otx2_cpt_write64(lf->lfs->reg_base, blkaddr, lf->slot,
 			 OTX2_CPT_LF_CTL, lf_ctl.u);
 }
 
@@ -269,13 +271,14 @@ static inline void otx2_cptlf_set_iqueue_exec(struct otx2_cptlf_info *lf,
 					      bool enable)
 {
 	union otx2_cptx_lf_inprog lf_inprog;
+	u8 blkaddr = lf->lfs->blkaddr;
 
-	lf_inprog.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	lf_inprog.u = otx2_cpt_read64(lf->lfs->reg_base, blkaddr, lf->slot,
 				      OTX2_CPT_LF_INPROG);
 
 	/* Set iqueue's execution */
 	lf_inprog.s.eena = enable ? 0x1 : 0x0;
-	otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
+	otx2_cpt_write64(lf->lfs->reg_base, blkaddr, lf->slot,
 			 OTX2_CPT_LF_INPROG, lf_inprog.u);
 }
 
@@ -364,6 +367,18 @@ static inline bool otx2_cptlf_started(struct otx2_cptlfs_info *lfs)
 	return atomic_read(&lfs->state) == OTX2_CPTLF_STARTED;
 }
 
+static inline void otx2_cptlf_set_dev_info(struct otx2_cptlfs_info *lfs,
+					   struct pci_dev *pdev,
+					   void __iomem *reg_base,
+					   struct otx2_mbox *mbox,
+					   int blkaddr)
+{
+	lfs->pdev = pdev;
+	lfs->reg_base = reg_base;
+	lfs->mbox = mbox;
+	lfs->blkaddr = blkaddr;
+}
+
 int otx2_cptlf_init(struct otx2_cptlfs_info *lfs, u8 eng_grp_msk, int pri,
 		    int lfs_num);
 void otx2_cptlf_shutdown(struct otx2_cptlfs_info *lfs);

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf.h b/drivers/crypto/marvell/octeontx2/otx2_cptpf.h
@@ -31,6 +31,7 @@ struct otx2_cptpf_dev {
 	struct otx2_cptvf_info vf[OTX2_CPT_MAX_VFS_NUM];
 	struct otx2_cpt_eng_grps eng_grps;/* Engine groups information */
 	struct otx2_cptlfs_info lfs;      /* CPT LFs attached to this PF */
+	struct otx2_cptlfs_info cpt1_lfs; /* CPT1 LFs attached to this PF */
 	/* HW capabilities for each engine type */
 	union otx2_cpt_eng_caps eng_caps[OTX2_CPT_MAX_ENG_TYPES];
 	bool is_eng_caps_discovered;
@@ -55,8 +56,10 @@ struct otx2_cptpf_dev {
 	u8 pf_id;               /* RVU PF number */
 	u8 max_vfs;		/* Maximum number of VFs supported by CPT */
 	u8 enabled_vfs;		/* Number of enabled VFs */
+	u8 sso_pf_func_ovrd;	/* SSO PF_FUNC override bit */
 	u8 kvf_limits;		/* Kernel crypto limits */
 	bool has_cpt1;
+	u8 rsrc_req_blkaddr;
 
 	/* Devlink */
 	struct devlink *dl;

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
@@ -13,6 +13,8 @@
 #define OTX2_CPT_DRV_NAME    "rvu_cptpf"
 #define OTX2_CPT_DRV_STRING  "Marvell RVU CPT Physical Function Driver"
 
+#define CPT_UC_RID_CN9K_B0   1
+
 static void cptpf_enable_vfpf_mbox_intr(struct otx2_cptpf_dev *cptpf,
 					int num_vfs)
 {
@@ -498,6 +500,32 @@ static void cptpf_afpf_mbox_destroy(struct otx2_cptpf_dev *cptpf)
 	otx2_mbox_destroy(&cptpf->afpf_mbox_up);
 }
 
+static ssize_t sso_pf_func_ovrd_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct otx2_cptpf_dev *cptpf = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%d\n", cptpf->sso_pf_func_ovrd);
+}
+
+static ssize_t sso_pf_func_ovrd_store(struct device *dev,
+				      struct device_attribute *attr,
+				      const char *buf, size_t count)
+{
+	struct otx2_cptpf_dev *cptpf = dev_get_drvdata(dev);
+	u8 sso_pf_func_ovrd;
+
+	if (!(cptpf->pdev->revision == CPT_UC_RID_CN9K_B0))
+		return count;
+
+	if (kstrtou8(buf, 0, &sso_pf_func_ovrd))
+		return -EINVAL;
+
+	cptpf->sso_pf_func_ovrd = sso_pf_func_ovrd;
+
+	return count;
+}
+
 static ssize_t kvf_limits_show(struct device *dev,
 			       struct device_attribute *attr, char *buf)
 {
@@ -528,8 +556,11 @@ static ssize_t kvf_limits_store(struct device *dev,
 }
 
 static DEVICE_ATTR_RW(kvf_limits);
+static DEVICE_ATTR_RW(sso_pf_func_ovrd);
+
 static struct attribute *cptpf_attrs[] = {
 	&dev_attr_kvf_limits.attr,
+	&dev_attr_sso_pf_func_ovrd.attr,
 	NULL
 };