From 843c0a8a76078cf961b244b839683d0667313740 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 13 Dec 2007 12:43:20 -0600 Subject: [SCSI] libiscsi, iscsi_tcp: add device support This patch adds logical unit reset support. This should work for ib_iser, but I have not finished testing that driver so it is not hooked in yet. This patch also temporarily reverts the iscsi_tcp r2t write out patch. That code is completely rewritten in this patchset. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/iscsi_if.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/scsi/iscsi_if.h') diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index 50e907f42048..bff0b1f7857b 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -236,6 +236,7 @@ enum iscsi_param { ISCSI_PARAM_PASSWORD, ISCSI_PARAM_PASSWORD_IN, + ISCSI_PARAM_FAST_ABORT, /* must always be last */ ISCSI_PARAM_MAX, }; @@ -266,6 +267,7 @@ enum iscsi_param { #define ISCSI_USERNAME_IN (1 << ISCSI_PARAM_USERNAME_IN) #define ISCSI_PASSWORD (1 << ISCSI_PARAM_PASSWORD) #define ISCSI_PASSWORD_IN (1 << ISCSI_PARAM_PASSWORD_IN) +#define ISCSI_FAST_ABORT (1 << ISCSI_PARAM_FAST_ABORT) /* iSCSI HBA params */ enum iscsi_host_param { -- cgit v1.2.3 From 2697478903d0ad8bdbf868b1346ae4b891662bb1 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 13 Dec 2007 12:43:29 -0600 Subject: [SCSI] libiscsi: fix shutdown We were using the device delete sysfs file to remove each device then logout. Now in 2.6.21 this will not work because the sysfs delete file returns immediately and does not wait for the device removal to complete. This causes a hang if a cache sync is needed during shutdown. Before .21, that approach had other problems, so this patch fixes the shutdown code so that we remove the target and unbind the session before logging out and shut down the session Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/iscsi_if.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/scsi/iscsi_if.h') diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index bff0b1f7857b..8a4426df6c3a 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -49,12 +49,15 @@ enum iscsi_uevent_e { ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15, ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16, + ISCSI_UEVENT_UNBIND_SESSION = UEVENT_BASE + 17, /* up events */ ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1, ISCSI_KEVENT_CONN_ERROR = KEVENT_BASE + 2, ISCSI_KEVENT_IF_ERROR = KEVENT_BASE + 3, ISCSI_KEVENT_DESTROY_SESSION = KEVENT_BASE + 4, + ISCSI_KEVENT_UNBIND_SESSION = KEVENT_BASE + 5, + ISCSI_KEVENT_CREATE_SESSION = KEVENT_BASE + 6, }; enum iscsi_tgt_dscvr { @@ -156,6 +159,10 @@ struct iscsi_uevent { uint32_t sid; uint32_t cid; } c_conn_ret; + struct msg_unbind_session { + uint32_t sid; + uint32_t host_no; + } unbind_session; struct msg_recv_req { uint32_t sid; uint32_t cid; -- cgit v1.2.3 From f6d5180c78780d63b0577edeb3ce41eeb3e93eea Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 13 Dec 2007 12:43:30 -0600 Subject: [SCSI] libiscsi: fix nop handling During root boot and shutdown the target could send us nops. At this time iscsid cannot be running, so the target will drop the session and the boot or shutdown will hang. To handle this and allow us to better control when to check the network this patch moves the nop handling to the kernel. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/iscsi_if.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/scsi/iscsi_if.h') diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index 8a4426df6c3a..e19e58423166 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -244,6 +244,12 @@ enum iscsi_param { ISCSI_PARAM_PASSWORD_IN, ISCSI_PARAM_FAST_ABORT, + ISCSI_PARAM_ABORT_TMO, + ISCSI_PARAM_LU_RESET_TMO, + ISCSI_PARAM_HOST_RESET_TMO, + + ISCSI_PARAM_PING_TMO, + ISCSI_PARAM_RECV_TMO, /* must always be last */ ISCSI_PARAM_MAX, }; @@ -275,6 +281,11 @@ enum iscsi_param { #define ISCSI_PASSWORD (1 << ISCSI_PARAM_PASSWORD) #define ISCSI_PASSWORD_IN (1 << ISCSI_PARAM_PASSWORD_IN) #define ISCSI_FAST_ABORT (1 << ISCSI_PARAM_FAST_ABORT) +#define ISCSI_ABORT_TMO (1 << ISCSI_PARAM_ABORT_TMO) +#define ISCSI_LU_RESET_TMO (1 << ISCSI_PARAM_LU_RESET_TMO) +#define ISCSI_HOST_RESET_TMO (1 << ISCSI_PARAM_HOST_RESET_TMO) +#define ISCSI_PING_TMO (1 << ISCSI_PARAM_PING_TMO) +#define ISCSI_RECV_TMO (1 << ISCSI_PARAM_RECV_TMO) /* iSCSI HBA params */ enum iscsi_host_param { -- cgit v1.2.3