}
}
-/***************************************************************************
- *
- * Infiniband link-layer operations
- *
- ***************************************************************************
- */
-
-/**
- * Initialise Infiniband link
- *
- * @v ibdev Infiniband device
- * @ret rc Return status code
- */
-static int arbel_open ( struct ib_device *ibdev ) {
- struct arbel *arbel = ib_get_drvdata ( ibdev );
- struct arbelprm_init_ib init_ib;
- int rc;
-
- memset ( &init_ib, 0, sizeof ( init_ib ) );
- MLX_FILL_3 ( &init_ib, 0,
- mtu_cap, ARBEL_MTU_2048,
- port_width_cap, 3,
- vl_cap, 1 );
- MLX_FILL_1 ( &init_ib, 1, max_gid, 1 );
- MLX_FILL_1 ( &init_ib, 2, max_pkey, 64 );
- if ( ( rc = arbel_cmd_init_ib ( arbel, ibdev->port,
- &init_ib ) ) != 0 ) {
- DBGC ( arbel, "Arbel %p port %d could not intialise IB: %s\n",
- arbel, ibdev->port, strerror ( rc ) );
- return rc;
- }
-
- /* Update MAD parameters */
- ib_smc_update ( ibdev, arbel_mad );
-
- return 0;
-}
-
-/**
- * Close Infiniband link
- *
- * @v ibdev Infiniband device
- */
-static void arbel_close ( struct ib_device *ibdev ) {
- struct arbel *arbel = ib_get_drvdata ( ibdev );
- int rc;
-
- if ( ( rc = arbel_cmd_close_ib ( arbel, ibdev->port ) ) != 0 ) {
- DBGC ( arbel, "Arbel %p port %d could not close IB: %s\n",
- arbel, ibdev->port, strerror ( rc ) );
- /* Nothing we can do about this */
- }
-}
-
-/**
- * Inform embedded subnet management agent of a received MAD
- *
- * @v ibdev Infiniband device
- * @v mad MAD
- * @ret rc Return status code
- */
-static int arbel_inform_sma ( struct ib_device *ibdev, union ib_mad *mad ) {
- int rc;
-
- /* Send the MAD to the embedded SMA */
- if ( ( rc = arbel_mad ( ibdev, mad ) ) != 0 )
- return rc;
-
- /* Update parameters held in software */
- ib_smc_update ( ibdev, arbel_mad );
-
- return 0;
-}
-
-/***************************************************************************
- *
- * Multicast group operations
- *
- ***************************************************************************
- */
-
-/**
- * Attach to multicast group
- *
- * @v ibdev Infiniband device
- * @v qp Queue pair
- * @v gid Multicast GID
- * @ret rc Return status code
- */
-static int arbel_mcast_attach ( struct ib_device *ibdev,
- struct ib_queue_pair *qp,
- union ib_gid *gid ) {
- struct arbel *arbel = ib_get_drvdata ( ibdev );
- struct arbelprm_mgm_hash hash;
- struct arbelprm_mgm_entry mgm;
- unsigned int index;
- int rc;
-
- /* Generate hash table index */
- if ( ( rc = arbel_cmd_mgid_hash ( arbel, gid, &hash ) ) != 0 ) {
- DBGC ( arbel, "Arbel %p could not hash GID: %s\n",
- arbel, strerror ( rc ) );
- return rc;
- }
- index = MLX_GET ( &hash, hash );
-
- /* Check for existing hash table entry */
- if ( ( rc = arbel_cmd_read_mgm ( arbel, index, &mgm ) ) != 0 ) {
- DBGC ( arbel, "Arbel %p could not read MGM %#x: %s\n",
- arbel, index, strerror ( rc ) );
- return rc;
- }
- if ( MLX_GET ( &mgm, mgmqp_0.qi ) != 0 ) {
- /* FIXME: this implementation allows only a single QP
- * per multicast group, and doesn't handle hash
- * collisions. Sufficient for IPoIB but may need to
- * be extended in future.
- */
- DBGC ( arbel, "Arbel %p MGID index %#x already in use\n",
- arbel, index );
- return -EBUSY;
- }
-
- /* Update hash table entry */
- MLX_FILL_2 ( &mgm, 8,
- mgmqp_0.qpn_i, qp->qpn,
- mgmqp_0.qi, 1 );
- memcpy ( &mgm.u.dwords[4], gid, sizeof ( *gid ) );
- if ( ( rc = arbel_cmd_write_mgm ( arbel, index, &mgm ) ) != 0 ) {
- DBGC ( arbel, "Arbel %p could not write MGM %#x: %s\n",
- arbel, index, strerror ( rc ) );
- return rc;
- }
-
- return 0;
-}
-
-/**
- * Detach from multicast group
- *
- * @v ibdev Infiniband device
- * @v qp Queue pair
- * @v gid Multicast GID
- */
-static void arbel_mcast_detach ( struct ib_device *ibdev,
- struct ib_queue_pair *qp __unused,
- union ib_gid *gid ) {
- struct arbel *arbel = ib_get_drvdata ( ibdev );
- struct arbelprm_mgm_hash hash;
- struct arbelprm_mgm_entry mgm;
- unsigned int index;
- int rc;
-
- /* Generate hash table index */
- if ( ( rc = arbel_cmd_mgid_hash ( arbel, gid, &hash ) ) != 0 ) {
- DBGC ( arbel, "Arbel %p could not hash GID: %s\n",
- arbel, strerror ( rc ) );
- return;
- }
- index = MLX_GET ( &hash, hash );
-
- /* Clear hash table entry */
- memset ( &mgm, 0, sizeof ( mgm ) );
- if ( ( rc = arbel_cmd_write_mgm ( arbel, index, &mgm ) ) != 0 ) {
- DBGC ( arbel, "Arbel %p could not write MGM %#x: %s\n",
- arbel, index, strerror ( rc ) );
- return;
- }
-}
-
-/** Arbel Infiniband operations */
-static struct ib_device_operations arbel_ib_operations = {
- .create_cq = arbel_create_cq,
- .destroy_cq = arbel_destroy_cq,
- .create_qp = arbel_create_qp,
- .modify_qp = arbel_modify_qp,
- .destroy_qp = arbel_destroy_qp,
- .post_send = arbel_post_send,
- .post_recv = arbel_post_recv,
- .poll_cq = arbel_poll_cq,
- .poll_eq = arbel_poll_eq,
- .open = arbel_open,
- .close = arbel_close,
- .mcast_attach = arbel_mcast_attach,
- .mcast_detach = arbel_mcast_detach,
- .set_port_info = arbel_inform_sma,
- .set_pkey_table = arbel_inform_sma,
-};
-
/***************************************************************************
*
* Firmware control
/***************************************************************************
*
- * PCI interface
+ * Initialisation
*
***************************************************************************
*/
return 0;
}
+/***************************************************************************
+ *
+ * Infiniband link-layer operations
+ *
+ ***************************************************************************
+ */
+
+/**
+ * Initialise Infiniband link
+ *
+ * @v ibdev Infiniband device
+ * @ret rc Return status code
+ */
+static int arbel_open ( struct ib_device *ibdev ) {
+ struct arbel *arbel = ib_get_drvdata ( ibdev );
+ struct arbelprm_init_ib init_ib;
+ int rc;
+
+ memset ( &init_ib, 0, sizeof ( init_ib ) );
+ MLX_FILL_3 ( &init_ib, 0,
+ mtu_cap, ARBEL_MTU_2048,
+ port_width_cap, 3,
+ vl_cap, 1 );
+ MLX_FILL_1 ( &init_ib, 1, max_gid, 1 );
+ MLX_FILL_1 ( &init_ib, 2, max_pkey, 64 );
+ if ( ( rc = arbel_cmd_init_ib ( arbel, ibdev->port,
+ &init_ib ) ) != 0 ) {
+ DBGC ( arbel, "Arbel %p port %d could not intialise IB: %s\n",
+ arbel, ibdev->port, strerror ( rc ) );
+ return rc;
+ }
+
+ /* Update MAD parameters */
+ ib_smc_update ( ibdev, arbel_mad );
+
+ return 0;
+}
+
+/**
+ * Close Infiniband link
+ *
+ * @v ibdev Infiniband device
+ */
+static void arbel_close ( struct ib_device *ibdev ) {
+ struct arbel *arbel = ib_get_drvdata ( ibdev );
+ int rc;
+
+ if ( ( rc = arbel_cmd_close_ib ( arbel, ibdev->port ) ) != 0 ) {
+ DBGC ( arbel, "Arbel %p port %d could not close IB: %s\n",
+ arbel, ibdev->port, strerror ( rc ) );
+ /* Nothing we can do about this */
+ }
+}
+
+/**
+ * Inform embedded subnet management agent of a received MAD
+ *
+ * @v ibdev Infiniband device
+ * @v mad MAD
+ * @ret rc Return status code
+ */
+static int arbel_inform_sma ( struct ib_device *ibdev, union ib_mad *mad ) {
+ int rc;
+
+ /* Send the MAD to the embedded SMA */
+ if ( ( rc = arbel_mad ( ibdev, mad ) ) != 0 )
+ return rc;
+
+ /* Update parameters held in software */
+ ib_smc_update ( ibdev, arbel_mad );
+
+ return 0;
+}
+
+/***************************************************************************
+ *
+ * Multicast group operations
+ *
+ ***************************************************************************
+ */
+
+/**
+ * Attach to multicast group
+ *
+ * @v ibdev Infiniband device
+ * @v qp Queue pair
+ * @v gid Multicast GID
+ * @ret rc Return status code
+ */
+static int arbel_mcast_attach ( struct ib_device *ibdev,
+ struct ib_queue_pair *qp,
+ union ib_gid *gid ) {
+ struct arbel *arbel = ib_get_drvdata ( ibdev );
+ struct arbelprm_mgm_hash hash;
+ struct arbelprm_mgm_entry mgm;
+ unsigned int index;
+ int rc;
+
+ /* Generate hash table index */
+ if ( ( rc = arbel_cmd_mgid_hash ( arbel, gid, &hash ) ) != 0 ) {
+ DBGC ( arbel, "Arbel %p could not hash GID: %s\n",
+ arbel, strerror ( rc ) );
+ return rc;
+ }
+ index = MLX_GET ( &hash, hash );
+
+ /* Check for existing hash table entry */
+ if ( ( rc = arbel_cmd_read_mgm ( arbel, index, &mgm ) ) != 0 ) {
+ DBGC ( arbel, "Arbel %p could not read MGM %#x: %s\n",
+ arbel, index, strerror ( rc ) );
+ return rc;
+ }
+ if ( MLX_GET ( &mgm, mgmqp_0.qi ) != 0 ) {
+ /* FIXME: this implementation allows only a single QP
+ * per multicast group, and doesn't handle hash
+ * collisions. Sufficient for IPoIB but may need to
+ * be extended in future.
+ */
+ DBGC ( arbel, "Arbel %p MGID index %#x already in use\n",
+ arbel, index );
+ return -EBUSY;
+ }
+
+ /* Update hash table entry */
+ MLX_FILL_2 ( &mgm, 8,
+ mgmqp_0.qpn_i, qp->qpn,
+ mgmqp_0.qi, 1 );
+ memcpy ( &mgm.u.dwords[4], gid, sizeof ( *gid ) );
+ if ( ( rc = arbel_cmd_write_mgm ( arbel, index, &mgm ) ) != 0 ) {
+ DBGC ( arbel, "Arbel %p could not write MGM %#x: %s\n",
+ arbel, index, strerror ( rc ) );
+ return rc;
+ }
+
+ return 0;
+}
+
+/**
+ * Detach from multicast group
+ *
+ * @v ibdev Infiniband device
+ * @v qp Queue pair
+ * @v gid Multicast GID
+ */
+static void arbel_mcast_detach ( struct ib_device *ibdev,
+ struct ib_queue_pair *qp __unused,
+ union ib_gid *gid ) {
+ struct arbel *arbel = ib_get_drvdata ( ibdev );
+ struct arbelprm_mgm_hash hash;
+ struct arbelprm_mgm_entry mgm;
+ unsigned int index;
+ int rc;
+
+ /* Generate hash table index */
+ if ( ( rc = arbel_cmd_mgid_hash ( arbel, gid, &hash ) ) != 0 ) {
+ DBGC ( arbel, "Arbel %p could not hash GID: %s\n",
+ arbel, strerror ( rc ) );
+ return;
+ }
+ index = MLX_GET ( &hash, hash );
+
+ /* Clear hash table entry */
+ memset ( &mgm, 0, sizeof ( mgm ) );
+ if ( ( rc = arbel_cmd_write_mgm ( arbel, index, &mgm ) ) != 0 ) {
+ DBGC ( arbel, "Arbel %p could not write MGM %#x: %s\n",
+ arbel, index, strerror ( rc ) );
+ return;
+ }
+}
+
+/** Arbel Infiniband operations */
+static struct ib_device_operations arbel_ib_operations = {
+ .create_cq = arbel_create_cq,
+ .destroy_cq = arbel_destroy_cq,
+ .create_qp = arbel_create_qp,
+ .modify_qp = arbel_modify_qp,
+ .destroy_qp = arbel_destroy_qp,
+ .post_send = arbel_post_send,
+ .post_recv = arbel_post_recv,
+ .poll_cq = arbel_poll_cq,
+ .poll_eq = arbel_poll_eq,
+ .open = arbel_open,
+ .close = arbel_close,
+ .mcast_attach = arbel_mcast_attach,
+ .mcast_detach = arbel_mcast_detach,
+ .set_port_info = arbel_inform_sma,
+ .set_pkey_table = arbel_inform_sma,
+};
+
+/***************************************************************************
+ *
+ * PCI interface
+ *
+ ***************************************************************************
+ */
+
/**
* Probe PCI device
*
projects / thirdparty / ipxe.git / commitdiff
