crypto: octeontx2 - add SGv2 support for CN10KB or CN10KA B0

JIRA: https://issues.redhat.com/browse/RHEL-31478

Upstream Status: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

commit 92508e7
Author: Srujana Challa <schalla@marvell.com>
Date:   Wed Dec 13 13:00:48 2023 +0530

    crypto: octeontx2 - add SGv2 support for CN10KB or CN10KA B0

    Scatter Gather input format for CPT has changed on CN10KB/CN10KA B0 HW
    to make it compatible with NIX Scatter Gather format to support SG mode
    for inline IPsec. This patch modifies the code to make the driver works
    for the same. This patch also enables CPT firmware load for these chips.

    Signed-off-by: Srujana Challa <schalla@marvell.com>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Štěpán Horáček <shoracek@redhat.com>

Author: shoracek

drivers/crypto/marvell/octeontx2/cn10k_cpt.c

@@ -14,12 +14,14 @@ static struct cpt_hw_ops otx2_hw_ops = {
 	.send_cmd = otx2_cpt_send_cmd,
 	.cpt_get_compcode = otx2_cpt_get_compcode,
 	.cpt_get_uc_compcode = otx2_cpt_get_uc_compcode,
+	.cpt_sg_info_create = otx2_sg_info_create,
 };
 
 static struct cpt_hw_ops cn10k_hw_ops = {
 	.send_cmd = cn10k_cpt_send_cmd,
 	.cpt_get_compcode = cn10k_cpt_get_compcode,
 	.cpt_get_uc_compcode = cn10k_cpt_get_uc_compcode,
+	.cpt_sg_info_create = otx2_sg_info_create,
 };
 
 static void cn10k_cpt_send_cmd(union otx2_cpt_inst_s *cptinst, u32 insts_num,
@@ -78,12 +80,9 @@ int cn10k_cptvf_lmtst_init(struct otx2_cptvf_dev *cptvf)
 	struct pci_dev *pdev = cptvf->pdev;
 	resource_size_t offset, size;
 
-	if (!test_bit(CN10K_LMTST, &cptvf->cap_flag)) {
-		cptvf->lfs.ops = &otx2_hw_ops;
+	if (!test_bit(CN10K_LMTST, &cptvf->cap_flag))
 		return 0;
-	}
 
-	cptvf->lfs.ops = &cn10k_hw_ops;
 	offset = pci_resource_start(pdev, PCI_MBOX_BAR_NUM);
 	size = pci_resource_len(pdev, PCI_MBOX_BAR_NUM);
 	/* Map VF LMILINE region */
@@ -96,3 +95,12 @@ int cn10k_cptvf_lmtst_init(struct otx2_cptvf_dev *cptvf)
 	return 0;
 }
 EXPORT_SYMBOL_NS_GPL(cn10k_cptvf_lmtst_init, CRYPTO_DEV_OCTEONTX2_CPT);
+
+void cptvf_hw_ops_get(struct otx2_cptvf_dev *cptvf)
+{
+	if (test_bit(CN10K_LMTST, &cptvf->cap_flag))
+		cptvf->lfs.ops = &cn10k_hw_ops;
+	else
+		cptvf->lfs.ops = &otx2_hw_ops;
+}
+EXPORT_SYMBOL_NS_GPL(cptvf_hw_ops_get, CRYPTO_DEV_OCTEONTX2_CPT);

drivers/crypto/marvell/octeontx2/cn10k_cpt.h

@@ -30,5 +30,6 @@ static inline u8 otx2_cpt_get_uc_compcode(union otx2_cpt_res_s *result)
 
 int cn10k_cptpf_lmtst_init(struct otx2_cptpf_dev *cptpf);
 int cn10k_cptvf_lmtst_init(struct otx2_cptvf_dev *cptvf);
+void cptvf_hw_ops_get(struct otx2_cptvf_dev *cptvf);
 
 #endif /* __CN10K_CPTLF_H */

drivers/crypto/marvell/octeontx2/otx2_cpt_common.h

@@ -102,7 +102,10 @@ union otx2_cpt_eng_caps {
 		u64 kasumi:1;
 		u64 des:1;
 		u64 crc:1;
-		u64 reserved_14_63:50;
+		u64 mmul:1;
+		u64 reserved_15_33:19;
+		u64 pdcp_chain:1;
+		u64 reserved_35_63:29;
 	};
 };
 
@@ -145,6 +148,35 @@ static inline bool is_dev_otx2(struct pci_dev *pdev)
 	return false;
 }
 
+static inline bool is_dev_cn10ka(struct pci_dev *pdev)
+{
+	return pdev->subsystem_device == CPT_PCI_SUBSYS_DEVID_CN10K_A;
+}
+
+static inline bool is_dev_cn10ka_ax(struct pci_dev *pdev)
+{
+	if (pdev->subsystem_device == CPT_PCI_SUBSYS_DEVID_CN10K_A &&
+	    ((pdev->revision & 0xFF) == 4 || (pdev->revision & 0xFF) == 0x50 ||
+	     (pdev->revision & 0xff) == 0x51))
+		return true;
+
+	return false;
+}
+
+static inline bool is_dev_cn10kb(struct pci_dev *pdev)
+{
+	return pdev->subsystem_device == CPT_PCI_SUBSYS_DEVID_CN10K_B;
+}
+
+static inline bool is_dev_cn10ka_b0(struct pci_dev *pdev)
+{
+	if (pdev->subsystem_device == CPT_PCI_SUBSYS_DEVID_CN10K_A &&
+	    (pdev->revision & 0xFF) == 0x54)
+		return true;
+
+	return false;
+}
+
 static inline void otx2_cpt_set_hw_caps(struct pci_dev *pdev,
 					unsigned long *cap_flag)
 {

drivers/crypto/marvell/octeontx2/otx2_cpt_hw_types.h

@@ -13,6 +13,9 @@
 #define CN10K_CPT_PCI_PF_DEVICE_ID 0xA0F2
 #define CN10K_CPT_PCI_VF_DEVICE_ID 0xA0F3
 
+#define CPT_PCI_SUBSYS_DEVID_CN10K_A 0xB900
+#define CPT_PCI_SUBSYS_DEVID_CN10K_B 0xBD00
+
 /* Mailbox interrupts offset */
 #define OTX2_CPT_PF_MBOX_INT	6
 #define OTX2_CPT_PF_INT_VEC_E_MBOXX(x, a) ((x) + (a))