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Date:      Mon, 29 Sep 2025 14:37:59 GMT
From:      Navdeep Parhar <np@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org
Subject:   git: e5ce2d39368f - main - libcxgb4: Get userspace RDMA tools to recognize T7 based RNICs
Message-ID:  <202509291437.58TEbxAN018114@gitrepo.freebsd.org>

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The branch main has been updated by np:

URL: https://cgit.FreeBSD.org/src/commit/?id=e5ce2d39368f702cc910e3baf103df0a6e1f9266

commit e5ce2d39368f702cc910e3baf103df0a6e1f9266
Author:     Navdeep Parhar <np@FreeBSD.org>
AuthorDate: 2025-09-29 13:50:34 +0000
Commit:     Navdeep Parhar <np@FreeBSD.org>
CommitDate: 2025-09-29 14:26:01 +0000

    libcxgb4: Get userspace RDMA tools to recognize T7 based RNICs
    
    MFC after:      3 days
    Sponsored by:   Chelsio Communications
---
 contrib/ofed/libcxgb4/dev.c           |  9 ++++++++-
 contrib/ofed/libcxgb4/libcxgb4.h      |  5 +++++
 contrib/ofed/libcxgb4/t4_chip_type.h  | 10 ++++++++++
 contrib/ofed/libcxgb4/t4_pci_id_tbl.h | 27 +++++++++++++++++++++------
 4 files changed, 44 insertions(+), 7 deletions(-)

diff --git a/contrib/ofed/libcxgb4/dev.c b/contrib/ofed/libcxgb4/dev.c
index d3c289dad9f2..db728f5627da 100644
--- a/contrib/ofed/libcxgb4/dev.c
+++ b/contrib/ofed/libcxgb4/dev.c
@@ -144,6 +144,8 @@ static struct ibv_context *c4iw_alloc_context(struct ibv_device *ibdev,
 	context->ibv_ctx.ops = c4iw_ctx_ops;
 
 	switch (rhp->chip_version) {
+	case CHELSIO_T7:
+		PDBG("%s T7/T6/T5/T4 device\n", __FUNCTION__);
 	case CHELSIO_T6:
 		PDBG("%s T6/T5/T4 device\n", __FUNCTION__);
 	case CHELSIO_T5:
@@ -429,6 +431,8 @@ static struct verbs_device *cxgb4_driver_init(const char *uverbs_sys_path,
 	    strstr(&ibdev[2], "nex") && devnum >= 0) {
 		snprintf(dev_str, sizeof(dev_str), "/dev/t%cnex/%d", ibdev[1],
 		    devnum);
+	} else if (strstr(&ibdev[0], "chnex") && devnum >= 0) {
+		snprintf(dev_str, sizeof(dev_str), "/dev/chnex/%d", devnum);
 	} else
 		return NULL;
 
@@ -523,7 +527,10 @@ found:
 		goto err;
 
 	dev->ibv_dev.ops = &c4iw_dev_ops;
-	dev->chip_version = CHELSIO_CHIP_VERSION(hca_table[i].device >> 8);
+	if (hca_table[i].device == 0xd000)
+		dev->chip_version = CHELSIO_T7;
+	else
+		dev->chip_version = CHELSIO_CHIP_VERSION(hca_table[i].device >> 8);
 	dev->abi_version = abi_version;
 
 	PDBG("%s device claimed\n", __FUNCTION__);
diff --git a/contrib/ofed/libcxgb4/libcxgb4.h b/contrib/ofed/libcxgb4/libcxgb4.h
index b891e8b1df97..216eee05a9d8 100644
--- a/contrib/ofed/libcxgb4/libcxgb4.h
+++ b/contrib/ofed/libcxgb4/libcxgb4.h
@@ -64,6 +64,11 @@ struct c4iw_dev {
 	int abi_version;
 };
 
+static inline int dev_is_t7(struct c4iw_dev *dev)
+{
+	return dev->chip_version == CHELSIO_T7;
+}
+
 static inline int dev_is_t6(struct c4iw_dev *dev)
 {
 	return dev->chip_version == CHELSIO_T6;
diff --git a/contrib/ofed/libcxgb4/t4_chip_type.h b/contrib/ofed/libcxgb4/t4_chip_type.h
index 54b718111e3f..ae3b760c51a1 100644
--- a/contrib/ofed/libcxgb4/t4_chip_type.h
+++ b/contrib/ofed/libcxgb4/t4_chip_type.h
@@ -37,6 +37,7 @@
 #define CHELSIO_T4		0x4
 #define CHELSIO_T5		0x5
 #define CHELSIO_T6		0x6
+#define CHELSIO_T7		0x7
 
 /* We code the Chelsio T4 Family "Chip Code" as a tuple:
  *
@@ -65,6 +66,10 @@ enum chip_type {
 	T6_A0 = CHELSIO_CHIP_CODE(CHELSIO_T6, 0),
 	T6_FIRST_REV	= T6_A0,
 	T6_LAST_REV	= T6_A0,
+
+	T7_A1 = CHELSIO_CHIP_CODE(CHELSIO_T7, 1),
+	T7_FIRST_REV	= T7_A1,
+	T7_LAST_REV	= T7_A1,
 };
 
 static inline int is_t4(enum chip_type chip)
@@ -82,4 +87,9 @@ static inline int is_t6(enum chip_type chip)
 	return (CHELSIO_CHIP_VERSION(chip) == CHELSIO_T6);
 }
 
+static inline int is_t7(enum chip_type chip)
+{
+	return (CHELSIO_CHIP_VERSION(chip) == CHELSIO_T7);
+}
+
 #endif /* __T4_CHIP_TYPE_H__ */
diff --git a/contrib/ofed/libcxgb4/t4_pci_id_tbl.h b/contrib/ofed/libcxgb4/t4_pci_id_tbl.h
index 50812a1d67bd..0ff7e689dc84 100644
--- a/contrib/ofed/libcxgb4/t4_pci_id_tbl.h
+++ b/contrib/ofed/libcxgb4/t4_pci_id_tbl.h
@@ -92,8 +92,7 @@
 #endif
 
 CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN
-	/* T4 adapters:
-	 */
+	/* T4 adapters */
 	CH_PCI_ID_TABLE_FENTRY(0x4000),	/* T440-dbg */
 	CH_PCI_ID_TABLE_FENTRY(0x4001),	/* T420-cr */
 	CH_PCI_ID_TABLE_FENTRY(0x4002),	/* T422-cr */
@@ -119,8 +118,7 @@ CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN
 	CH_PCI_ID_TABLE_FENTRY(0x4087),	/* Custom T440-cr */
 	CH_PCI_ID_TABLE_FENTRY(0x4088),	/* Custom T440 2-xaui, 2-xfi */
 
-	/* T5 adapters:
-	 */
+	/* T5 adapters */
 	CH_PCI_ID_TABLE_FENTRY(0x5000),	/* T580-dbg */
 	CH_PCI_ID_TABLE_FENTRY(0x5001),	/* T520-cr */
 	CH_PCI_ID_TABLE_FENTRY(0x5002),	/* T522-cr */
@@ -169,8 +167,7 @@ CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN
 	CH_PCI_ID_TABLE_FENTRY(0x509b),	/* Custom T540-CR LOM */
 	CH_PCI_ID_TABLE_FENTRY(0x509c),	/* Custom T520-CR*/
 
-	/* T6 adapters:
-	 */
+	/* T6 adapters */
 	CH_PCI_ID_TABLE_FENTRY(0x6001),
 	CH_PCI_ID_TABLE_FENTRY(0x6002),
 	CH_PCI_ID_TABLE_FENTRY(0x6003),
@@ -184,6 +181,24 @@ CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN
 	CH_PCI_ID_TABLE_FENTRY(0x6011),
 	CH_PCI_ID_TABLE_FENTRY(0x6014),
 	CH_PCI_ID_TABLE_FENTRY(0x6015),
+	CH_PCI_ID_TABLE_FENTRY(0x6081),
+
+	/* T7 adapters */
+	{ .vendor = 0x1425, .device = 0xd000 }, /* T7 FPGA */
+	CH_PCI_ID_TABLE_FENTRY(0x7000),	/* T7-DBG */
+	CH_PCI_ID_TABLE_FENTRY(0x7001),	/* T7250 */
+	CH_PCI_ID_TABLE_FENTRY(0x7002),	/* S7250 */
+	CH_PCI_ID_TABLE_FENTRY(0x7003),	/* T7450 */
+	CH_PCI_ID_TABLE_FENTRY(0x7004),	/* S7450 */
+	CH_PCI_ID_TABLE_FENTRY(0x7005),	/* T72200 */
+	CH_PCI_ID_TABLE_FENTRY(0x7006),	/* S72200 */
+	CH_PCI_ID_TABLE_FENTRY(0x7007),	/* T72200-FH */
+	CH_PCI_ID_TABLE_FENTRY(0x7008),	/* T71400 */
+	CH_PCI_ID_TABLE_FENTRY(0x7009),	/* S7210-BT */
+	CH_PCI_ID_TABLE_FENTRY(0x700a),	/* T7450-RC */
+	CH_PCI_ID_TABLE_FENTRY(0x700b),	/* T72200-RC */
+	CH_PCI_ID_TABLE_FENTRY(0x700c),	/* T72200-FH-RC */
+	CH_PCI_ID_TABLE_FENTRY(0x7080), /* Custom */
 CH_PCI_DEVICE_ID_TABLE_DEFINE_END;
 
 #endif /* __T4_PCI_ID_TBL_H__ */



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