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Diffstat (limited to 'src/net/infiniband/ib_srp.c')
-rw-r--r--src/net/infiniband/ib_srp.c141
1 files changed, 100 insertions, 41 deletions
diff --git a/src/net/infiniband/ib_srp.c b/src/net/infiniband/ib_srp.c
index 3b4914ab..cf1ef3bf 100644
--- a/src/net/infiniband/ib_srp.c
+++ b/src/net/infiniband/ib_srp.c
@@ -60,6 +60,8 @@ FILE_LICENCE ( BSD2 );
#define EINFO_EINVAL_RP_TOO_SHORT __einfo_uniqify \
( EINFO_EINVAL, 0x04, "Root path too short" )
+struct acpi_model ib_sbft_model __acpi_model;
+
/******************************************************************************
*
* IB SRP devices
@@ -67,6 +69,20 @@ FILE_LICENCE ( BSD2 );
******************************************************************************
*/
+/**
+ * An IB SRP sBFT created by iPXE
+ */
+struct ipxe_ib_sbft {
+ /** The table header */
+ struct sbft_table table;
+ /** The SCSI subtable */
+ struct sbft_scsi_subtable scsi;
+ /** The SRP subtable */
+ struct sbft_srp_subtable srp;
+ /** The Infiniband subtable */
+ struct sbft_ib_subtable ib;
+};
+
/** An Infiniband SRP device */
struct ib_srp_device {
/** Reference count */
@@ -80,10 +96,10 @@ struct ib_srp_device {
/** Infiniband device */
struct ib_device *ibdev;
- /** Destination GID (for boot firmware table) */
- union ib_gid dgid;
- /** Service ID (for boot firmware table) */
- union ib_guid service_id;
+ /** ACPI descriptor */
+ struct acpi_descriptor desc;
+ /** Boot firmware table parameters */
+ struct ipxe_ib_sbft sbft;
};
/**
@@ -113,43 +129,15 @@ static void ib_srp_close ( struct ib_srp_device *ib_srp, int rc ) {
}
/**
- * Describe IB SRP device in an ACPI table
+ * Get IB SRP ACPI descriptor
*
- * @v srpdev SRP device
- * @v acpi ACPI table
- * @v len Length of ACPI table
- * @ret rc Return status code
+ * @v ib_srp IB SRP device
+ * @ret desc ACPI descriptor
*/
-static int ib_srp_describe ( struct ib_srp_device *ib_srp,
- struct acpi_description_header *acpi,
- size_t len ) {
- struct ib_device *ibdev = ib_srp->ibdev;
- struct sbft_table *sbft =
- container_of ( acpi, struct sbft_table, acpi );
- struct sbft_ib_subtable *ib_sbft;
- size_t used;
-
- /* Sanity check */
- if ( acpi->signature != SBFT_SIG )
- return -EINVAL;
-
- /* Append IB subtable to existing table */
- used = le32_to_cpu ( sbft->acpi.length );
- sbft->ib_offset = cpu_to_le16 ( used );
- ib_sbft = ( ( ( void * ) sbft ) + used );
- used += sizeof ( *ib_sbft );
- if ( used > len )
- return -ENOBUFS;
- sbft->acpi.length = cpu_to_le32 ( used );
-
- /* Populate subtable */
- memcpy ( &ib_sbft->sgid, &ibdev->gid, sizeof ( ib_sbft->sgid ) );
- memcpy ( &ib_sbft->dgid, &ib_srp->dgid, sizeof ( ib_sbft->dgid ) );
- memcpy ( &ib_sbft->service_id, &ib_srp->service_id,
- sizeof ( ib_sbft->service_id ) );
- ib_sbft->pkey = cpu_to_le16 ( ibdev->pkey );
+static struct acpi_descriptor *
+ib_srp_describe ( struct ib_srp_device *ib_srp ) {
- return 0;
+ return &ib_srp->desc;
}
/** IB SRP CMRC interface operations */
@@ -188,6 +176,7 @@ static int ib_srp_open ( struct interface *block, struct ib_device *ibdev,
union srp_port_id *initiator,
union srp_port_id *target, struct scsi_lun *lun ) {
struct ib_srp_device *ib_srp;
+ struct ipxe_ib_sbft *sbft;
int rc;
/* Allocate and initialise structure */
@@ -200,13 +189,19 @@ static int ib_srp_open ( struct interface *block, struct ib_device *ibdev,
intf_init ( &ib_srp->srp, &ib_srp_srp_desc, &ib_srp->refcnt );
intf_init ( &ib_srp->cmrc, &ib_srp_cmrc_desc, &ib_srp->refcnt );
ib_srp->ibdev = ibdev_get ( ibdev );
+ acpi_init ( &ib_srp->desc, &ib_sbft_model, &ib_srp->refcnt );
DBGC ( ib_srp, "IBSRP %p for " IB_GID_FMT " " IB_GUID_FMT "\n",
ib_srp, IB_GID_ARGS ( dgid ), IB_GUID_ARGS ( service_id ) );
/* Preserve parameters required for boot firmware table */
- memcpy ( &ib_srp->dgid, dgid, sizeof ( ib_srp->dgid ) );
- memcpy ( &ib_srp->service_id, service_id,
- sizeof ( ib_srp->service_id ) );
+ sbft = &ib_srp->sbft;
+ memcpy ( &sbft->scsi.lun, lun, sizeof ( sbft->scsi.lun ) );
+ memcpy ( &sbft->srp.initiator, initiator,
+ sizeof ( sbft->srp.initiator ) );
+ memcpy ( &sbft->srp.target, target, sizeof ( sbft->srp.target ) );
+ memcpy ( &sbft->ib.dgid, dgid, sizeof ( sbft->ib.dgid ) );
+ memcpy ( &sbft->ib.service_id, service_id,
+ sizeof ( sbft->ib.service_id ) );
/* Open CMRC socket */
if ( ( rc = ib_cmrc_open ( &ib_srp->cmrc, ibdev, dgid,
@@ -579,3 +574,67 @@ struct uri_opener ib_srp_uri_opener __uri_opener = {
.scheme = "ib_srp",
.open = ib_srp_open_uri,
};
+
+/******************************************************************************
+ *
+ * IB SRP boot firmware table (sBFT)
+ *
+ ******************************************************************************
+ */
+
+/**
+ * Check if IB SRP boot firmware table descriptor is complete
+ *
+ * @v desc ACPI descriptor
+ * @ret rc Return status code
+ */
+static int ib_sbft_complete ( struct acpi_descriptor *desc __unused ) {
+ return 0;
+}
+
+/**
+ * Install IB SRP boot firmware table(s)
+ *
+ * @v install Installation method
+ * @ret rc Return status code
+ */
+static int ib_sbft_install ( int ( * install ) ( struct acpi_header *acpi ) ) {
+ struct ib_srp_device *ib_srp;
+ struct ipxe_ib_sbft *sbft;
+ struct ib_device *ibdev;
+ int rc;
+
+ list_for_each_entry ( ib_srp, &ib_sbft_model.descs, desc.list ) {
+
+ /* Complete table */
+ sbft = &ib_srp->sbft;
+ ibdev = ib_srp->ibdev;
+ sbft->table.acpi.signature = cpu_to_le32 ( SBFT_SIG );
+ sbft->table.acpi.length = cpu_to_le32 ( sizeof ( *sbft ) );
+ sbft->table.acpi.revision = 1;
+ sbft->table.scsi_offset =
+ cpu_to_le16 ( offsetof ( typeof ( *sbft ), scsi ) );
+ sbft->table.srp_offset =
+ cpu_to_le16 ( offsetof ( typeof ( *sbft ), srp ) );
+ sbft->table.ib_offset =
+ cpu_to_le16 ( offsetof ( typeof ( *sbft ), ib ) );
+ memcpy ( &sbft->ib.sgid, &ibdev->gid, sizeof ( sbft->ib.sgid ));
+ sbft->ib.pkey = cpu_to_le16 ( ibdev->pkey );
+
+ /* Install table */
+ if ( ( rc = install ( &sbft->table.acpi ) ) != 0 ) {
+ DBGC ( ib_srp, "IBSRP %p could not install sBFT: %s\n",
+ ib_srp, strerror ( rc ) );
+ return rc;
+ }
+ }
+
+ return 0;
+}
+
+/** IB sBFT model */
+struct acpi_model ib_sbft_model __acpi_model = {
+ .descs = LIST_HEAD_INIT ( ib_sbft_model.descs ),
+ .complete = ib_sbft_complete,
+ .install = ib_sbft_install,
+};
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-05-29 01:52:53 +0200