6857725 Add device path to IBNEX_CTL_QUERY_HCA return data

4 files changed, 308 insertions, 91 deletions

diff --git a/usr/src/uts/common/io/ib/ibnex/ibnex_ioctl.c b/usr/src/uts/common/io/ib/ibnex/ibnex_ioctl.c
index a905d45b91..11c4fdbafb 100644
--- a/usr/src/uts/common/io/ib/ibnex/ibnex_ioctl.c
+++ b/usr/src/uts/common/io/ib/ibnex/ibnex_ioctl.c
@@ -2880,6 +2880,72 @@ out:
 	return (rv);
 }
 
+#define	IBNEX_CTL_CP_HCA_INFO(x, y, driver_name, instance, device_path, \
+    device_path_alloc_sz, device_path_len)				\
+{									\
+	(x)->hca_node_guid		= (y)->hca_node_guid;		\
+	(x)->hca_si_guid		= (y)->hca_si_guid;		\
+	(x)->hca_nports			= (y)->hca_nports;		\
+	(x)->hca_flags			= (y)->hca_flags;		\
+	(x)->hca_flags2			= (y)->hca_flags2;		\
+	(x)->hca_vendor_id		= (y)->hca_vendor_id;		\
+	(x)->hca_device_id		= (y)->hca_device_id;		\
+	(x)->hca_version_id		= (y)->hca_version_id;		\
+	(x)->hca_max_chans		= (y)->hca_max_chans;		\
+	(x)->hca_max_chan_sz		= (y)->hca_max_chan_sz;		\
+	(x)->hca_max_sgl		= (y)->hca_max_sgl;		\
+	(x)->hca_max_cq			= (y)->hca_max_cq;		\
+	(x)->hca_max_cq_sz		= (y)->hca_max_cq_sz;		\
+	(x)->hca_page_sz		= (y)->hca_page_sz;		\
+	(x)->hca_max_memr		= (y)->hca_max_memr;		\
+	(x)->hca_max_memr_len		= (y)->hca_max_memr_len;	\
+	(x)->hca_max_mem_win		= (y)->hca_max_mem_win;		\
+	(x)->hca_max_rsc		= (y)->hca_max_rsc;		\
+	(x)->hca_max_rdma_in_chan	= (y)->hca_max_rdma_in_chan;	\
+	(x)->hca_max_rdma_out_chan	= (y)->hca_max_rdma_out_chan;	\
+	(x)->hca_max_ipv6_chan		= (y)->hca_max_ipv6_chan;	\
+	(x)->hca_max_ether_chan 	= (y)->hca_max_ether_chan;	\
+	(x)->hca_max_mcg_chans		= (y)->hca_max_mcg_chans;	\
+	(x)->hca_max_mcg		= (y)->hca_max_mcg;		\
+	(x)->hca_max_chan_per_mcg	= (y)->hca_max_chan_per_mcg;	\
+	(x)->hca_max_partitions		= (y)->hca_max_partitions;	\
+	(x)->hca_local_ack_delay	= (y)->hca_local_ack_delay;	\
+	(x)->hca_max_port_sgid_tbl_sz	= (y)->hca_max_port_sgid_tbl_sz; \
+	(x)->hca_max_port_pkey_tbl_sz	= (y)->hca_max_port_pkey_tbl_sz; \
+	(x)->hca_max_pd			= (y)->hca_max_pd;		\
+	(x)->hca_max_ud_dest		= (y)->hca_max_ud_dest;		\
+	(x)->hca_max_srqs		= (y)->hca_max_srqs;		\
+	(x)->hca_max_srqs_sz		= (y)->hca_max_srqs_sz;		\
+	(x)->hca_max_srq_sgl		= (y)->hca_max_srq_sgl;		\
+	(x)->hca_max_cq_handlers	= (y)->hca_max_cq_handlers;	\
+	(x)->hca_reserved_lkey		= (y)->hca_reserved_lkey;	\
+	(x)->hca_max_fmrs		= (y)->hca_max_fmrs;		\
+	(x)->hca_max_lso_size		= (y)->hca_max_lso_size;	\
+	(x)->hca_max_lso_hdr_size	= (y)->hca_max_lso_hdr_size;	\
+	(x)->hca_max_inline_size	= (y)->hca_max_inline_size;	\
+	(x)->hca_max_cq_mod_count	= (y)->hca_max_cq_mod_count;	\
+	(x)->hca_max_cq_mod_usec	= (y)->hca_max_cq_mod_usec;	\
+	(x)->hca_fw_major_version	= (y)->hca_fw_major_version;	\
+	(x)->hca_fw_minor_version	= (y)->hca_fw_minor_version;	\
+	(x)->hca_fw_micro_version	= (y)->hca_fw_micro_version;	\
+	(x)->hca_ud_send_inline_sz	= (y)->hca_ud_send_inline_sz;	\
+	(x)->hca_conn_send_inline_sz	= (y)->hca_conn_send_inline_sz;	\
+	(x)->hca_conn_rdmaw_inline_overhead =				\
+	    (y)->hca_conn_rdmaw_inline_overhead;			\
+	(x)->hca_recv_sgl_sz		= (y)->hca_recv_sgl_sz;		\
+	(x)->hca_ud_send_sgl_sz		= (y)->hca_ud_send_sgl_sz;	\
+	(x)->hca_conn_send_sgl_sz	= (y)->hca_conn_send_sgl_sz;	\
+	(x)->hca_conn_rdma_sgl_overhead = (y)->hca_conn_rdma_sgl_overhead; \
+									\
+	(void) strlcpy((x)->hca_driver_name, (driver_name),		\
+	    MAX_HCA_DRVNAME_LEN);					\
+	(x)->hca_driver_instance	= (instance);			\
+									\
+	(x)->hca_device_path = ((device_path_alloc_sz) >= (device_path_len)) \
+	    ? (device_path) : NULL;					\
+	(x)->hca_device_path_len	= (device_path_len);		\
+}
+
 /*
  * IOCTL implementation to query HCA attributes
  */
@@ -2888,110 +2954,121 @@ ibnex_ctl_query_hca(dev_t dev, int cmd, intptr_t arg, int mode,
     cred_t *credp, int *rvalp)
 {
 	int			rv = 0;
-	ibnex_ctl_hca_info_t	*hca_info;
-	ibnex_ctl_query_hca_t	*query_hca;
-	ibt_hca_attr_t		*hca_attr;
+	ibnex_ctl_query_hca_t	*query_hca = NULL;
+	ibnex_ctl_query_hca_32_t *query_hca_32 = NULL;
+	ibt_hca_attr_t		*hca_attr = NULL;
 	char			driver_name[MAX_HCA_DRVNAME_LEN];
 	int			instance;
+	ib_guid_t		hca_guid;
+	char			*device_path;
+	uint_t			device_path_alloc_sz, hca_device_path_len;
+	char			*hca_device_path = NULL;
 
 	IBTF_DPRINTF_L4("ibnex", "\tctl_query_hca: cmd=%x, arg=%p, "
 	    "mode=%x, cred=%p, rval=%p, dev=0x%x", cmd, arg, mode, credp,
 	    rvalp, dev);
 
-	/*
-	 * NOTE: 32-bit versions of the structures for ibnex_ctl_query_hca_t
-	 * and ibnex_ctl_hca_info_t are not defined because the alignment
-	 * of fields for these structures happen to be the same for both
-	 * 64-bit and 32-bit cases.
-	 */
+#ifdef	_MULTI_DATAMODEL
+	if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) {
+		query_hca_32 = kmem_zalloc(
+		    sizeof (ibnex_ctl_query_hca_32_t), KM_SLEEP);
 
-	query_hca = kmem_zalloc(sizeof (ibnex_ctl_query_hca_t), KM_SLEEP);
-	hca_attr = kmem_zalloc(sizeof (ibt_hca_attr_t), KM_SLEEP);
+		if (ddi_copyin((void *)arg, query_hca_32,
+		    sizeof (ibnex_ctl_query_hca_32_t), mode) != 0) {
+			IBTF_DPRINTF_L2("ibnex",
+			    "\tctl_query_hca: ddi_copyin err 1");
+			rv = EFAULT;
+			goto out;
+		}
 
-	if (ddi_copyin((void *)arg, query_hca,
-	    sizeof (ibnex_ctl_query_hca_t), mode) != 0) {
-		IBTF_DPRINTF_L2("ibnex", "\tctl_query_hca: ddi_copyin err");
-		rv = EFAULT;
-		goto out;
+		hca_guid = query_hca_32->hca_guid;
+		device_path = (char *)(uintptr_t)query_hca_32->hca_device_path;
+		device_path_alloc_sz = query_hca_32->hca_device_path_alloc_sz;
+	} else
+#endif
+	{
+		query_hca = kmem_zalloc(sizeof (ibnex_ctl_query_hca_t),
+		    KM_SLEEP);
+
+		if (ddi_copyin((void *)arg, query_hca,
+		    sizeof (ibnex_ctl_query_hca_t), mode) != 0) {
+			IBTF_DPRINTF_L2("ibnex",
+			    "\tctl_query_hca: ddi_copyin err 2");
+			rv = EFAULT;
+			goto out;
+		}
+
+		hca_guid = query_hca->hca_guid;
+		device_path = query_hca->hca_device_path;
+		device_path_alloc_sz = query_hca->hca_device_path_alloc_sz;
 	}
 
-	if (ibtl_ibnex_query_hca_byguid(query_hca->hca_guid, hca_attr,
-	    driver_name, sizeof (driver_name), &instance) != IBT_SUCCESS) {
+	hca_attr = kmem_zalloc(sizeof (ibt_hca_attr_t), KM_SLEEP);
+	hca_device_path = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
+
+	if (ibtl_ibnex_query_hca_byguid(hca_guid, hca_attr,
+	    driver_name, sizeof (driver_name), &instance, hca_device_path)
+	    != IBT_SUCCESS) {
 		rv = ENXIO;
 		goto out;
 	}
 
-	hca_info = &query_hca->hca_info;
-
-	hca_info->hca_node_guid = hca_attr->hca_node_guid;
-	hca_info->hca_si_guid = hca_attr->hca_si_guid;
-	hca_info->hca_nports = hca_attr->hca_nports;
-	hca_info->hca_flags = hca_attr->hca_flags;
-	hca_info->hca_flags2 = hca_attr->hca_flags2;
-	hca_info->hca_vendor_id = hca_attr->hca_vendor_id;
-	hca_info->hca_device_id = hca_attr->hca_device_id;
-	hca_info->hca_version_id = hca_attr->hca_version_id;
-	hca_info->hca_max_chans = hca_attr->hca_max_chans;
-	hca_info->hca_max_chan_sz = hca_attr->hca_max_chan_sz;
-	hca_info->hca_max_sgl = hca_attr->hca_max_sgl;
-	hca_info->hca_max_cq = hca_attr->hca_max_cq;
-	hca_info->hca_max_cq_sz = hca_attr->hca_max_cq_sz;
-	hca_info->hca_page_sz = hca_attr->hca_page_sz;
-	hca_info->hca_max_memr = hca_attr->hca_max_memr;
-	hca_info->hca_max_memr_len = hca_attr->hca_max_memr_len;
-	hca_info->hca_max_mem_win = hca_attr->hca_max_mem_win;
-	hca_info->hca_max_rsc = hca_attr->hca_max_rsc;
-	hca_info->hca_max_rdma_in_chan = hca_attr->hca_max_rdma_in_chan;
-	hca_info->hca_max_rdma_out_chan = hca_attr->hca_max_rdma_out_chan;
-	hca_info->hca_max_ipv6_chan = hca_attr->hca_max_ipv6_chan;
-	hca_info->hca_max_ether_chan = hca_attr->hca_max_ether_chan;
-	hca_info->hca_max_mcg_chans = hca_attr->hca_max_mcg_chans;
-	hca_info->hca_max_mcg = hca_attr->hca_max_mcg;
-	hca_info->hca_max_chan_per_mcg = hca_attr->hca_max_chan_per_mcg;
-	hca_info->hca_max_partitions = hca_attr->hca_max_partitions;
-	hca_info->hca_local_ack_delay = hca_attr->hca_local_ack_delay;
-	hca_info->hca_max_port_sgid_tbl_sz = hca_attr->hca_max_port_sgid_tbl_sz;
-	hca_info->hca_max_port_pkey_tbl_sz = hca_attr->hca_max_port_pkey_tbl_sz;
-	hca_info->hca_max_pd = hca_attr->hca_max_pd;
-	hca_info->hca_max_ud_dest = hca_attr->hca_max_ud_dest;
-	hca_info->hca_max_srqs = hca_attr->hca_max_srqs;
-	hca_info->hca_max_srqs_sz = hca_attr->hca_max_srqs_sz;
-	hca_info->hca_max_srq_sgl = hca_attr->hca_max_srq_sgl;
-	hca_info->hca_max_cq_handlers = hca_attr->hca_max_cq_handlers;
-	hca_info->hca_reserved_lkey = hca_attr->hca_reserved_lkey;
-	hca_info->hca_max_fmrs = hca_attr->hca_max_fmrs;
-	hca_info->hca_max_lso_size = hca_attr->hca_max_lso_size;
-	hca_info->hca_max_lso_hdr_size = hca_attr->hca_max_lso_hdr_size;
-	hca_info->hca_max_inline_size = hca_attr->hca_max_inline_size;
-	hca_info->hca_max_cq_mod_count = hca_attr->hca_max_cq_mod_count;
-	hca_info->hca_max_cq_mod_usec = hca_attr->hca_max_cq_mod_usec;
-	hca_info->hca_fw_major_version = hca_attr->hca_fw_major_version;
-	hca_info->hca_fw_minor_version = hca_attr->hca_fw_minor_version;
-	hca_info->hca_fw_micro_version = hca_attr->hca_fw_micro_version;
-	hca_info->hca_ud_send_inline_sz = hca_attr->hca_ud_send_inline_sz;
-	hca_info->hca_conn_send_inline_sz = hca_attr->hca_conn_send_inline_sz;
-	hca_info->hca_conn_rdmaw_inline_overhead =
-	    hca_attr->hca_conn_rdmaw_inline_overhead;
-	hca_info->hca_recv_sgl_sz = hca_attr->hca_recv_sgl_sz;
-	hca_info->hca_ud_send_sgl_sz = hca_attr->hca_ud_send_sgl_sz;
-	hca_info->hca_conn_send_sgl_sz = hca_attr->hca_conn_send_sgl_sz;
-	hca_info->hca_conn_rdma_sgl_overhead =
-	    hca_attr->hca_conn_rdma_sgl_overhead;
-
-	(void) strlcpy(hca_info->hca_driver_name, driver_name,
-	    MAX_HCA_DRVNAME_LEN);
-	hca_info->hca_driver_instance = instance;
-
-	/* copy hca information to the user space */
-	if (ddi_copyout(hca_info, &((ibnex_ctl_query_hca_t *)arg)->hca_info,
-	    sizeof (ibnex_ctl_hca_info_t), mode) != 0) {
-		IBTF_DPRINTF_L2("ibnex", "\tctl_query_hca: ddi_copyout err");
-		rv = EFAULT;
+	hca_device_path_len = strlen(hca_device_path) + 1;
+
+#ifdef	_MULTI_DATAMODEL
+	if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) {
+
+		IBNEX_CTL_CP_HCA_INFO(&query_hca_32->hca_info, hca_attr,
+		    driver_name, instance, query_hca_32->hca_device_path,
+		    device_path_alloc_sz, hca_device_path_len);
+
+		/* copy hca information to the user space */
+		if (ddi_copyout(&query_hca_32->hca_info,
+		    &((ibnex_ctl_query_hca_32_t *)arg)->hca_info,
+		    sizeof (ibnex_ctl_hca_info_32_t), mode) != 0) {
+			IBTF_DPRINTF_L2("ibnex",
+			    "\tctl_query_hca: ddi_copyout err 1");
+			rv = EFAULT;
+			goto out;
+		}
+	} else
+#endif
+	{
+		IBNEX_CTL_CP_HCA_INFO(&query_hca->hca_info, hca_attr,
+		    driver_name, instance, device_path,
+		    device_path_alloc_sz, hca_device_path_len);
+
+		/* copy hca information to the user space */
+		if (ddi_copyout(&query_hca->hca_info,
+		    &((ibnex_ctl_query_hca_t *)arg)->hca_info,
+		    sizeof (ibnex_ctl_hca_info_t), mode) != 0) {
+			IBTF_DPRINTF_L2("ibnex",
+			    "\tctl_query_hca: ddi_copyout err 2");
+			rv = EFAULT;
+			goto out;
+		}
+	}
+
+	if (device_path_alloc_sz >= hca_device_path_len) {
+		if (ddi_copyout(hca_device_path,
+		    device_path,
+		    hca_device_path_len, mode) != 0) {
+			IBTF_DPRINTF_L2("ibnex", "\tctl_query_hca: "
+			    "ddi_copyout err copying device path");
+			rv = EFAULT;
+		}
 	}
 
 out:
-	kmem_free(query_hca, sizeof (ibnex_ctl_query_hca_t));
-	kmem_free(hca_attr, sizeof (ibt_hca_attr_t));
+	if (query_hca)
+		kmem_free(query_hca, sizeof (ibnex_ctl_query_hca_t));
+	if (query_hca_32)
+		kmem_free(query_hca_32, sizeof (ibnex_ctl_query_hca_32_t));
+	if (hca_attr)
+		kmem_free(hca_attr, sizeof (ibt_hca_attr_t));
+	if (hca_device_path)
+		kmem_free(hca_device_path, MAXPATHLEN);
+
 	return (rv);
 }
 
@@ -3056,7 +3133,7 @@ ibnex_ctl_query_hca_port(dev_t dev, int cmd, intptr_t arg, int mode,
 		if (ddi_copyin((void *)arg, query_hca_port_32,
 		    sizeof (ibnex_ctl_query_hca_port_32_t), mode) != 0) {
 			IBTF_DPRINTF_L2("ibnex",
-			    "\tctl_query_hca_port: ddi_copyin err 2");
+			    "\tctl_query_hca_port: ddi_copyin err 1");
 			rv = EFAULT;
 			goto out;
 		}
diff --git a/usr/src/uts/common/io/ib/ibtl/ibtl_ibnex.c b/usr/src/uts/common/io/ib/ibtl/ibtl_ibnex.c
index d9bc16df76..486518ebdd 100644
--- a/usr/src/uts/common/io/ib/ibtl/ibtl_ibnex.c
+++ b/usr/src/uts/common/io/ib/ibtl/ibtl_ibnex.c
@@ -635,6 +635,8 @@ ibtl_ibnex_phci_unregister(dev_info_t *hca_dip)
  *	driver_name	- caller allocated buffer which will contain
  *			  HCA driver name upon success
  *	driver_instance - HCA driver instance
+ *	hca_device_path	- caller allocated buffer of size MAXPATHLEN which
+ *			  will contain hca device path upon success.
  * Returns:
  *	IBT_SUCCESS/IBT_FAILURE
  * Description:
@@ -643,7 +645,8 @@ ibtl_ibnex_phci_unregister(dev_info_t *hca_dip)
  */
 ibt_status_t
 ibtl_ibnex_query_hca_byguid(ib_guid_t hca_guid, ibt_hca_attr_t *hca_attrs,
-    char *driver_name, size_t driver_name_size, int *driver_instance)
+    char *driver_name, size_t driver_name_size, int *driver_instance,
+    char *hca_device_path)
 {
 	ibtl_hca_devinfo_t	*hca_devp;
 
@@ -667,6 +670,7 @@ ibtl_ibnex_query_hca_byguid(ib_guid_t hca_guid, ibt_hca_attr_t *hca_attrs,
 		return (IBT_INSUFF_KERNEL_RESOURCE);
 	}
 
+	(void) ddi_pathname(hca_devp->hd_hca_dip, hca_device_path);
 	*driver_instance = ddi_get_instance(hca_devp->hd_hca_dip);
 	bcopy(hca_devp->hd_hca_attr, hca_attrs, sizeof (ibt_hca_attr_t));
 
diff --git a/usr/src/uts/common/sys/ib/ibnex/ibnex_devctl.h b/usr/src/uts/common/sys/ib/ibnex/ibnex_devctl.h
index d30f8e5b7c..2dc49eeb3d 100644
--- a/usr/src/uts/common/sys/ib/ibnex/ibnex_devctl.h
+++ b/usr/src/uts/common/sys/ib/ibnex/ibnex_devctl.h
@@ -184,8 +184,17 @@ typedef struct ibnex_ioctl_data_32 {
  *
  * Caller sets hca_guid field of this structure.
  *
+ * Caller allocates memory for hca device path. Sets hca_device_path to point
+ * to the allocated memory and hca_device_path_alloc_sz to the number of bytes
+ * allocated.
+ *
  * Upon successful return from the IOCTL, hca_info will contain HCA attributes
- * for the specified GUID.
+ * for the specified GUID. hca_info.hca_device_path_len will contain the actual
+ * string length of the hca device path plus the terminating null character.
+ * hca_info.hca_device_path will point to null terminated hca device path
+ * string if the caller allocated memory for the hca device path is large
+ * enough to hold the hca device path and the terminating null character.
+ * Otherwise hca_info.hca_device_path will be set to NULL.
  *
  *
  * IBNEX_CTL_QUERY_HCA_PORT
@@ -281,6 +290,14 @@ typedef struct ibnex_ctl_hca_info_s {
 	char		hca_driver_name[MAX_HCA_DRVNAME_LEN];
 	int		hca_driver_instance;
 
+	/*
+	 * hca device path and the length.
+	 * hca_device_path_len is string length of the actual hca device path
+	 * plus the terminating null character.
+	 */
+	char		*hca_device_path;
+	uint_t		hca_device_path_len;
+
 	ibt_hca_flags_t		hca_flags;	/* HCA capabilities etc */
 	ibt_hca_flags2_t	hca_flags2;	/* HCA capabilities etc */
 
@@ -359,14 +376,130 @@ typedef struct ibnex_ctl_hca_info_s {
 	int32_t		hca_pad;
 } ibnex_ctl_hca_info_t;
 
+typedef struct ibnex_ctl_hca_info_32_s {
+	ib_guid_t	hca_node_guid;		/* Node GUID */
+	ib_guid_t	hca_si_guid;		/* Optional System Image GUID */
+	uint_t		hca_nports;		/* Number of physical ports */
+
+	/* HCA driver name and instance number */
+	char		hca_driver_name[MAX_HCA_DRVNAME_LEN];
+	int		hca_driver_instance;
+
+	/*
+	 * hca device path and the length.
+	 * hca_device_path_len is string length of the actual hca device path
+	 * plus the terminating null character.
+	 */
+	caddr32_t	hca_device_path;
+	uint_t		hca_device_path_len;
+
+	ibt_hca_flags_t		hca_flags;	/* HCA capabilities etc */
+	ibt_hca_flags2_t	hca_flags2;	/* HCA capabilities etc */
+
+	uint32_t	hca_vendor_id;		/* Vendor ID */
+	uint16_t	hca_device_id;		/* Device ID */
+	uint32_t	hca_version_id;		/* Version ID */
+
+	uint_t		hca_max_chans;		/* Max channels supported */
+	uint_t		hca_max_chan_sz;	/* Max outstanding WRs on any */
+						/* channel */
+
+	uint_t		hca_max_sgl;		/* Max SGL entries per WR */
+
+	uint_t		hca_max_cq;		/* Max num of CQs supported  */
+	uint_t		hca_max_cq_sz;		/* Max capacity of each CQ */
+
+	ibt_page_sizes_t	hca_page_sz;	/* Bit mask of page sizes */
+
+	uint_t		hca_max_memr;		/* Max num of HCA mem regions */
+	ib_memlen_t	hca_max_memr_len;	/* Largest block, in bytes of */
+						/* mem that can be registered */
+	uint_t		hca_max_mem_win;	/* Max Memory windows in HCA */
+
+	uint_t		hca_max_rsc; 		/* Max Responder Resources of */
+						/* this HCA for RDMAR/Atomics */
+						/* with this HCA as target. */
+	uint8_t		hca_max_rdma_in_chan;	/* Max RDMAR/Atomics in per */
+						/* chan this HCA as target. */
+	uint8_t		hca_max_rdma_out_chan;	/* Max RDMA Reads/Atomics out */
+						/* per channel by this HCA */
+	uint_t		hca_max_ipv6_chan;	/* Max IPV6 channels in HCA */
+	uint_t		hca_max_ether_chan;	/* Max Ether channels in HCA */
+
+	uint_t		hca_max_mcg_chans;	/* Max number of channels */
+						/* that can join multicast */
+						/* groups */
+	uint_t		hca_max_mcg;		/* Max multicast groups */
+	uint_t		hca_max_chan_per_mcg;	/* Max number of channels per */
+						/* Multicast group in HCA */
+	uint16_t	hca_max_partitions;	/* Max partitions in HCA */
+
+	ib_time_t	hca_local_ack_delay;
+
+	uint_t		hca_max_port_sgid_tbl_sz;
+	uint16_t	hca_max_port_pkey_tbl_sz;
+	uint_t		hca_max_pd;		/* Max# of Protection Domains */
+
+	uint_t		hca_max_ud_dest;
+	uint_t		hca_max_srqs;		/* Max SRQs supported */
+	uint_t		hca_max_srqs_sz;	/* Max outstanding WRs on any */
+						/* SRQ */
+	uint_t		hca_max_srq_sgl;	/* Max SGL entries per SRQ WR */
+	uint_t		hca_max_cq_handlers;
+	ibt_lkey_t	hca_reserved_lkey;	/* Reserved L_Key value */
+	uint_t		hca_max_fmrs;		/* Max FMR Supported */
+
+	uint_t		hca_max_lso_size;
+	uint_t		hca_max_lso_hdr_size;
+	uint_t		hca_max_inline_size;
+
+	uint_t		hca_max_cq_mod_count;	/* CQ notify moderation */
+	uint_t		hca_max_cq_mod_usec;
+
+	uint32_t	hca_fw_major_version;	/* firmware version */
+	uint16_t	hca_fw_minor_version;
+	uint16_t	hca_fw_micro_version;
+
+	/* detailed WQE size info */
+	uint_t		hca_ud_send_inline_sz;	/* inline size in bytes */
+	uint_t		hca_conn_send_inline_sz;
+	uint_t		hca_conn_rdmaw_inline_overhead;
+	uint_t		hca_recv_sgl_sz;	/* detailed SGL sizes */
+	uint_t		hca_ud_send_sgl_sz;
+	uint_t		hca_conn_send_sgl_sz;
+	uint_t		hca_conn_rdma_sgl_overhead;
+	int32_t		hca_pad;
+} ibnex_ctl_hca_info_32_t;
+
 /*
  * Data structure for IBNEX_CTL_QUERY_HCA
  */
 typedef struct ibnex_ctl_query_hca_s {
-	ib_guid_t		hca_guid;	/* in: HCA GUID */
+	ib_guid_t	hca_guid;	/* in: HCA GUID */
+
+	/*
+	 * in: user allocated memory pointer for hca device path and number of
+	 * bytes allocated for the hca device path.
+	 */
+	char		*hca_device_path;
+	uint_t		hca_device_path_alloc_sz;
+
 	ibnex_ctl_hca_info_t	hca_info;	/* out: HCA information */
 } ibnex_ctl_query_hca_t;
 
+typedef struct ibnex_ctl_query_hca_32_s {
+	ib_guid_t	hca_guid;	/* in: HCA GUID */
+
+	/*
+	 * in: user allocated memory pointer for hca device path and number of
+	 * bytes allocated for the hca device path.
+	 */
+	caddr32_t	hca_device_path;
+	uint_t		hca_device_path_alloc_sz;
+
+	ibnex_ctl_hca_info_32_t	hca_info;	/* out: HCA information */
+} ibnex_ctl_query_hca_32_t;
+
 /*
  * HCA port information structure
  */
diff --git a/usr/src/uts/common/sys/ib/ibtl/impl/ibtl_ibnex.h b/usr/src/uts/common/sys/ib/ibtl/impl/ibtl_ibnex.h
index 4f1ac51908..824d692306 100644
--- a/usr/src/uts/common/sys/ib/ibtl/impl/ibtl_ibnex.h
+++ b/usr/src/uts/common/sys/ib/ibtl/impl/ibtl_ibnex.h
@@ -238,6 +238,8 @@ ibt_status_t	ibtl_ibnex_phci_unregister(dev_info_t *hca_dip);
  *	driver_name	- caller allocated buffer which will contain
  *			  HCA driver name upon success
  *	driver_instance - HCA driver instance
+ *	hca_device_path	- caller allocated buffer of size MAXPATHLEN which
+ *			  will contain hca device path upon success.
  * Returns:
  *	IBT_SUCCESS/IBT_FAILURE
  * Description:
@@ -245,7 +247,8 @@ ibt_status_t	ibtl_ibnex_phci_unregister(dev_info_t *hca_dip);
  *	specified HCA.
  */
 ibt_status_t
-ibtl_ibnex_query_hca_byguid(ib_guid_t, ibt_hca_attr_t *, char *, size_t, int *);
+ibtl_ibnex_query_hca_byguid(ib_guid_t, ibt_hca_attr_t *, char *, size_t, int *,
+    char *);
 
 #ifdef __cplusplus
 }