[ipxe-devel] [PATCH 7/7] ibft: multiple session support
Hannes Reinecke
hare at suse.de
Wed Apr 1 07:26:21 UTC 2015
It is possible to open several iSCSI sessions, so we should be
updating the iBFT tables to handle several connections.
Signed-off-by: Hannes Reinecke <hare at suse.de>
---
src/drivers/block/ibft.c | 183 ++++++++++++++++++++++++++++++++++-------------
1 file changed, 132 insertions(+), 51 deletions(-)
diff --git a/src/drivers/block/ibft.c b/src/drivers/block/ibft.c
index 47d0a4b..827d9bf 100644
--- a/src/drivers/block/ibft.c
+++ b/src/drivers/block/ibft.c
@@ -64,10 +64,14 @@ struct ipxe_ibft {
struct ibft_table table;
/** The Initiator section */
struct ibft_initiator initiator __attribute__ (( aligned ( 16 ) ));
- /** The NIC section */
- struct ibft_nic nic __attribute__ (( aligned ( 16 ) ));
- /** The Target section */
- struct ibft_target target __attribute__ (( aligned ( 16 ) ));
+ /** The 1. NIC section */
+ struct ibft_nic nic0 __attribute__ (( aligned ( 16 ) ));
+ /** The 1. Target section */
+ struct ibft_target target0 __attribute__ (( aligned ( 16 ) ));
+ /** The 2. NIC section */
+ struct ibft_nic nic1 __attribute__ (( aligned ( 16 ) ));
+ /** The 2. Target section */
+ struct ibft_target target1 __attribute__ (( aligned ( 16 ) ));
/** Strings block */
char strings[0];
} __attribute__ (( packed, aligned ( 16 ) ));
@@ -276,9 +280,7 @@ static const char * ibft_string ( struct ibft_strings *strings,
* @ret netdev Return network device
*/
static struct net_device * ibft_fill_nic_ipv4 ( struct ibft_nic *nic,
- struct sockaddr_in *dest ) {
-
- struct ipv4_miniroute *route4 = ipv4_route(&dest->sin_addr);
+ struct ipv4_miniroute *route4 ) {
struct settings *parent;
struct settings *origin;
struct in_addr netmask_addr = { 0 };
@@ -290,19 +292,23 @@ static struct net_device * ibft_fill_nic_ipv4 ( struct ibft_nic *nic,
nic->origin = ( ( origin == parent ) ?
IBFT_NIC_ORIGIN_MANUAL : IBFT_NIC_ORIGIN_DHCP );
- DBG ( "iBFT NIC origin = %d\n", nic->origin );
+ DBG ( "iBFT NIC[%d] origin = %d\n",
+ nic->header.index, nic->origin );
/* Extract values from configuration settings */
fetch_setting ( parent, &ip_setting, &origin, NULL, NULL, 0 );
ibft_set_ipaddr ( &nic->ip_address, route4->address );
- DBG ( "iBFT NIC IP = %s\n", ibft_ipaddr ( &nic->ip_address ) );
+ DBG ( "iBFT NIC[%d] IP = %s\n", nic->header.index,
+ ibft_ipaddr ( &nic->ip_address ) );
ibft_set_ipaddr ( &nic->gateway, route4->gateway );
- DBG ( "iBFT NIC gateway = %s\n", ibft_ipaddr ( &nic->gateway ) );
+ DBG ( "iBFT NIC[%d] gateway = %s\n", nic->header.index,
+ ibft_ipaddr ( &nic->gateway ) );
ibft_set_ipaddr_setting ( NULL, &nic->dns[0], &dns_setting,
( sizeof ( nic->dns ) /
sizeof ( nic->dns[0] ) ) );
- DBG ( "iBFT NIC DNS = %s", ibft_ipaddr ( &nic->dns[0] ) );
+ DBG ( "iBFT NIC[%d] DNS = %s", nic->header.index,
+ ibft_ipaddr ( &nic->dns[0] ) );
DBG ( ", %s\n", ibft_ipaddr ( &nic->dns[1] ) );
/* Derive subnet mask prefix from subnet mask */
netmask_addr = route4->netmask;
@@ -312,7 +318,8 @@ static struct net_device * ibft_fill_nic_ipv4 ( struct ibft_nic *nic,
netmask_addr.s_addr >>= 1;
}
nic->subnet_mask_prefix = netmask_count;
- DBG ( "iBFT NIC subnet = /%d\n", nic->subnet_mask_prefix );
+ DBG ( "iBFT NIC[%d] subnet = /%d\n", nic->header.index,
+ nic->subnet_mask_prefix );
return route4->netdev;
}
@@ -324,31 +331,34 @@ static struct net_device * ibft_fill_nic_ipv4 ( struct ibft_nic *nic,
* @ret rc Return network device
*/
static struct net_device * ibft_fill_nic_ipv6 ( struct ibft_nic *nic,
- struct sockaddr_in6 * dest ) {
- struct ipv6_miniroute *route6;
- struct in6_addr *router = &dest->sin6_addr;
+ struct ipv6_miniroute *route6,
+ struct in6_addr * router ) {
struct settings *parent;
struct settings *origin;
- route6 = ipv6_route(dest->sin6_scope_id, &router);
parent = netdev_settings(route6->netdev);
fetch_setting ( parent, &ip6_setting, &origin, NULL, NULL, 0 );
nic->origin = ( ( origin == parent ) ?
IBFT_NIC_ORIGIN_MANUAL : IBFT_NIC_ORIGIN_DHCP );
- DBG ( "iBFT NIC origin = %d\n", nic->origin );
+ DBG ( "iBFT NIC[%d] origin = %d\n",
+ nic->header.index, nic->origin );
/* Extract values from configuration settings */
ibft_set_ip6addr ( &nic->ip_address, route6->address );
- DBG ( "iBFT NIC IP = %s\n", ibft_ipaddr ( &nic->ip_address ) );
+ DBG ( "iBFT NIC[%d] IP = %s\n",
+ nic->header.index, ibft_ipaddr ( &nic->ip_address ) );
ibft_set_ip6addr ( &nic->gateway, *router );
- DBG ( "iBFT NIC gateway = %s\n", ibft_ipaddr ( &nic->gateway ) );
+ DBG ( "iBFT NIC[%d] gateway = %s\n",
+ nic->header.index, ibft_ipaddr ( &nic->gateway ) );
ibft_set_ip6addr_setting ( NULL, &nic->dns[0], &dns6_setting,
( sizeof ( nic->dns ) /
sizeof ( nic->dns[0] ) ) );
- DBG ( "iBFT NIC DNS = %s", ibft_ipaddr ( &nic->dns[0] ) );
+ DBG ( "iBFT NIC[%d] DNS = %s", nic->header.index,
+ ibft_ipaddr ( &nic->dns[0] ) );
DBG ( ", %s\n", ibft_ipaddr ( &nic->dns[1] ) );
nic->subnet_mask_prefix = route6->prefix_len;
- DBG ( "iBFT NIC subnet = /%d\n", nic->subnet_mask_prefix );
+ DBG ( "iBFT NIC[%d] subnet = /%d\n",
+ nic->header.index, nic->subnet_mask_prefix );
return route6->netdev;
}
@@ -363,44 +373,79 @@ static struct net_device * ibft_fill_nic_ipv6 ( struct ibft_nic *nic,
*/
static int ibft_fill_nic ( struct ibft_nic *nic,
struct ibft_strings *strings,
- struct iscsi_session *iscsi ) {
+ struct iscsi_session *iscsi,
+ int nic_index ) {
struct sockaddr_in *sin_target =
( struct sockaddr_in * ) &iscsi->target_sockaddr;
struct sockaddr_in6 *sin6_target =
( struct sockaddr_in6 * ) &iscsi->target_sockaddr;
+ struct ipv4_miniroute * route4 = NULL;
+ struct ipv6_miniroute * route6 = NULL;
+ struct in6_addr *router6;
struct net_device *netdev;
struct ll_protocol *ll_protocol;
int rc;
+ if (sin_target->sin_family == AF_INET) {
+ struct in_addr router4 = sin_target->sin_addr;
+ route4 = ipv4_route(&router4);
+ if (!route4)
+ return -EHOSTUNREACH;
+ if (nic->header.flags & IBFT_FL_NIC_BLOCK_VALID) {
+ struct ibft_ipaddr tmp;
+ ibft_set_ipaddr( &tmp, route4->address );
+ if (memcmp(&nic->ip_address, &tmp, sizeof(tmp)))
+ return -EBUSY;
+ }
+ } else if (sin6_target->sin6_family == AF_INET6) {
+ router6 = &sin6_target->sin6_addr;
+ route6 = ipv6_route(sin6_target->sin6_scope_id, &router6);
+ if (!route6)
+ return -EHOSTUNREACH;
+ if (nic->header.flags & IBFT_FL_NIC_BLOCK_VALID) {
+ struct ibft_ipaddr tmp;
+ ibft_set_ip6addr( &tmp, route6->address );
+ if (memcmp(&nic->ip_address, &tmp, sizeof(tmp)))
+ return -EBUSY;
+ }
+ } else
+ return -EPROTONOSUPPORT;
+
+
/* Fill in common header */
nic->header.structure_id = IBFT_STRUCTURE_ID_NIC;
nic->header.version = 1;
+ nic->header.index = nic_index;
nic->header.length = cpu_to_le16 ( sizeof ( *nic ) );
nic->header.flags = ( IBFT_FL_NIC_BLOCK_VALID |
IBFT_FL_NIC_FIRMWARE_BOOT_SELECTED );
if (sin_target->sin_family == AF_INET)
- netdev = ibft_fill_nic_ipv4( nic, sin_target );
+ netdev = ibft_fill_nic_ipv4( nic, route4 );
else
- netdev = ibft_fill_nic_ipv6( nic, sin6_target );
+ netdev = ibft_fill_nic_ipv6( nic, route6, router6 );
/* Extract values from net-device configuration */
nic->vlan = cpu_to_le16 ( vlan_tag ( netdev ) );
- DBG ( "iBFT NIC VLAN = %02x\n", le16_to_cpu ( nic->vlan ) );
+ DBG ( "iBFT NIC[%d] VLAN = %02x\n",
+ nic->header.index, le16_to_cpu ( nic->vlan ) );
ll_protocol = netdev->ll_protocol;
if ( ( rc = ll_protocol->eth_addr ( netdev->ll_addr,
nic->mac_address ) ) != 0 ) {
DBG ( "Could not determine iBFT MAC: %s\n", strerror ( rc ) );
return rc;
}
- DBG ( "iBFT NIC MAC = %s\n", eth_ntoa ( nic->mac_address ) );
+ DBG ( "iBFT NIC[%d] MAC = %s\n",
+ nic->header.index, eth_ntoa ( nic->mac_address ) );
nic->pci_bus_dev_func = cpu_to_le16 ( netdev->dev->desc.location );
- DBG ( "iBFT NIC PCI = %04x\n", le16_to_cpu ( nic->pci_bus_dev_func ) );
+ DBG ( "iBFT NIC[%d] PCI = %04x\n",
+ nic->header.index, le16_to_cpu ( nic->pci_bus_dev_func ) );
if ( ( rc = ibft_set_string_setting ( NULL, strings, &nic->hostname,
&hostname_setting ) ) != 0 )
return rc;
- DBG ( "iBFT NIC hostname = %s\n",
+ DBG ( "iBFT NIC[%d] hostname = %s\n",
+ nic->header.index,
ibft_string ( strings, &nic->hostname ) );
return 0;
@@ -459,12 +504,14 @@ static int ibft_fill_target_chap ( struct ibft_target *target,
if ( ( rc = ibft_set_string ( strings, &target->chap_name,
iscsi->initiator_username ) ) != 0 )
return rc;
- DBG ( "iBFT target username = %s\n",
+ DBG ( "iBFT target[%d] username = %s\n",
+ target->header.index,
ibft_string ( strings, &target->chap_name ) );
if ( ( rc = ibft_set_string ( strings, &target->chap_secret,
iscsi->initiator_password ) ) != 0 )
return rc;
- DBG ( "iBFT target password = <redacted>\n" );
+ DBG ( "iBFT target[%d] password = <redacted>\n",
+ target->header.index );
return 0;
}
@@ -494,12 +541,14 @@ static int ibft_fill_target_reverse_chap ( struct ibft_target *target,
if ( ( rc = ibft_set_string ( strings, &target->reverse_chap_name,
iscsi->target_username ) ) != 0 )
return rc;
- DBG ( "iBFT target reverse username = %s\n",
+ DBG ( "iBFT target[%d] reverse username = %s\n",
+ target->header.index,
ibft_string ( strings, &target->chap_name ) );
if ( ( rc = ibft_set_string ( strings, &target->reverse_chap_secret,
iscsi->target_password ) ) != 0 )
return rc;
- DBG ( "iBFT target reverse password = <redacted>\n" );
+ DBG ( "iBFT target[%d] reverse password = <redacted>\n",
+ target->header.index );
return 0;
}
@@ -514,15 +563,29 @@ static int ibft_fill_target_reverse_chap ( struct ibft_target *target,
*/
static int ibft_fill_target ( struct ibft_target *target,
struct ibft_strings *strings,
- struct iscsi_session *iscsi ) {
+ struct iscsi_session *iscsi,
+ int target_index, int nic_index ) {
struct sockaddr_in *sin_target =
( struct sockaddr_in * ) &iscsi->target_sockaddr;
struct sockaddr_in6 *sin6_target =
( struct sockaddr_in6 * ) &iscsi->target_sockaddr;
int rc;
- if (sin6_target->sin6_family != AF_INET6 &&
- sin_target->sin_family != AF_INET) {
+ if (sin_target->sin_family == AF_INET) {
+ if (target->header.flags & IBFT_FL_TARGET_BLOCK_VALID) {
+ struct ibft_ipaddr tmp;
+ ibft_set_ipaddr ( &tmp, sin_target->sin_addr );
+ if ( memcmp( &target->ip_address, &tmp, sizeof(tmp) ))
+ return -EBUSY;
+ }
+ } else if (sin6_target->sin6_family == AF_INET6) {
+ if (target->header.flags & IBFT_FL_TARGET_BLOCK_VALID) {
+ struct ibft_ipaddr tmp;
+ ibft_set_ip6addr ( &tmp, sin6_target->sin6_addr );
+ if ( memcmp( &target->ip_address, &tmp, sizeof(tmp) ))
+ return -EBUSY;
+ }
+ } else {
DBG ( "iBFT invalid IP address type %d\n",
sin6_target->sin6_family );
return -EPROTONOSUPPORT;
@@ -530,31 +593,34 @@ static int ibft_fill_target ( struct ibft_target *target,
/* Fill in common header */
target->header.structure_id = IBFT_STRUCTURE_ID_TARGET;
target->header.version = 1;
+ target->header.index = target_index;
target->header.length = cpu_to_le16 ( sizeof ( *target ) );
target->header.flags = ( IBFT_FL_TARGET_BLOCK_VALID |
IBFT_FL_TARGET_FIRMWARE_BOOT_SELECTED );
+ target->nic_association = nic_index;
/* Fill in Target values */
if (sin_target->sin_family == AF_INET) {
ibft_set_ipaddr ( &target->ip_address, sin_target->sin_addr );
- DBG ( "iBFT target IP = %s\n",
+ DBG ( "iBFT target[%d] IP = %s\n", target_index,
ibft_ipaddr ( &target->ip_address ) );
target->socket = cpu_to_le16 ( ntohs ( sin_target->sin_port ) );
- DBG ( "iBFT target port = %d\n", target->socket );
+ DBG ( "iBFT target[%d] port = %d\n", target_index,
+ target->socket );
} else {
ibft_set_ip6addr ( &target->ip_address, sin6_target->sin6_addr );
- DBG ( "iBFT target IP = %s\n",
+ DBG ( "iBFT target[%d] IP = %s\n", target_index,
ibft_ipaddr ( &target->ip_address ) );
target->socket = cpu_to_le16 ( ntohs ( sin6_target->sin6_port ) );
- DBG ( "iBFT target port = %d\n", target->socket );
+ DBG ( "iBFT target[%d] port = %d\n", target_index, target->socket );
}
memcpy ( &target->boot_lun, &iscsi->lun, sizeof ( target->boot_lun ) );
- DBG ( "iBFT target boot LUN = " SCSI_LUN_FORMAT "\n",
- SCSI_LUN_DATA ( target->boot_lun ) );
+ DBG ( "iBFT target[%d] boot LUN = " SCSI_LUN_FORMAT "\n",
+ target_index, SCSI_LUN_DATA ( target->boot_lun ) );
if ( ( rc = ibft_set_string ( strings, &target->target_name,
iscsi->target_iqn ) ) != 0 )
return rc;
- DBG ( "iBFT target name = %s\n",
+ DBG ( "iBFT target[%d] name = %s\n", target_index,
ibft_string ( strings, &target->target_name ) );
if ( ( rc = ibft_fill_target_chap ( target, strings, iscsi ) ) != 0 )
return rc;
@@ -583,9 +649,11 @@ int ibft_describe ( struct iscsi_session *iscsi,
.offset = offsetof ( typeof ( *ibft ), strings ),
.len = len,
};
+ int nic_index = 0;
int rc;
/* Fill in ACPI header */
+ DBG ( "iBFT table %p\n", ibft);
ibft->table.acpi.signature = cpu_to_le32 ( IBFT_SIG );
ibft->table.acpi.length = cpu_to_le32 ( len );
ibft->table.acpi.revision = 1;
@@ -598,20 +666,33 @@ int ibft_describe ( struct iscsi_session *iscsi,
ibft->table.control.initiator =
cpu_to_le16 ( offsetof ( typeof ( *ibft ), initiator ) );
ibft->table.control.nic_0 =
- cpu_to_le16 ( offsetof ( typeof ( *ibft ), nic ) );
+ cpu_to_le16 ( offsetof ( typeof ( *ibft ), nic0 ) );
ibft->table.control.target_0 =
- cpu_to_le16 ( offsetof ( typeof ( *ibft ), target ) );
+ cpu_to_le16 ( offsetof ( typeof ( *ibft ), target0 ) );
+ ibft->table.control.nic_1 =
+ cpu_to_le16 ( offsetof ( typeof ( *ibft ), nic1 ) );
+ ibft->table.control.target_1 =
+ cpu_to_le16 ( offsetof ( typeof ( *ibft ), target1 ) );
- /* Fill in NIC, Initiator and Target blocks */
- if ( ( rc = ibft_fill_nic ( &ibft->nic, &strings,
- iscsi ) ) != 0 )
- return rc;
+ /* Fill in Initiator block */
if ( ( rc = ibft_fill_initiator ( &ibft->initiator, &strings,
iscsi ) ) != 0 )
return rc;
- if ( ( rc = ibft_fill_target ( &ibft->target, &strings,
- iscsi ) ) != 0 )
+ /* Fill in NIC blocks */
+ rc = ibft_fill_nic ( &ibft->nic0, &strings, iscsi, nic_index );
+ if ( rc == -EBUSY ) {
+ nic_index++;
+ rc = ibft_fill_nic( &ibft->nic1, &strings, iscsi, nic_index );
+ }
+ if ( rc != 0 )
return rc;
- return 0;
+ /* Fill in target blocks */
+ rc = ibft_fill_target ( &ibft->target0, &strings, iscsi,
+ 0, nic_index );
+ if ( rc == -EBUSY ) {
+ rc = ibft_fill_target ( &ibft->target1, &strings,
+ iscsi, 1, nic_index );
+ }
+ return rc;
}
--
1.8.4.5
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