If rdma_accept fails, use the cleanup mechanism we already have
for disconnect, instead of trying to reproduce the same cleanup.
From upper layer it really does not matter if rdma_accept failed
or we received disconnect immediately after rdma_accept succeeded.
Signed-off-by: Yan Burman <yanb@mellanox.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/iser@5262 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Avoid that building the iscsi-scst target driver fails as follows:
iscsi-scst/kernel/isert-scst/iser_rdma.c: In function 'isert_portal_listen':
iscsi-scst/kernel/isert-scst/iser_rdma.c:1450: error: implicit declaration of function 'pr_warn'
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/iser@5257 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Since the time during which a PR read or write lock is held is short,
use a mutex to implement PR read and write locking. So although this
patch excludes multiple simultaneous readers that shouldn't affect the
time needed to process a PR operation measurably.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5254 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Although it is possible to obtain these statistics by iterating over
all sessions and by computing the sum of the per-target statistics,
make per-target statistics directly available such that these can be
retrieved easily.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5249 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Add iser character device handling for accepting and handling connections
received through RDMA transport.
Add isert_listener device to the poll() loop and handle incoming
connection requests.
Differentiate between iser and non iser connections
Validate RDMAExtension field and reject it if found in iscsi login request.
Also, disable immediate data and first burst for iSER since it is not supported yet
Signed-off-by: Yan Burman <yanb@mellanox.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/iser@5235 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Refactor character device handling code as well as
connection allocation code in order to be able to reuse that in iser later on.
Signed-off-by: Yan Burman <yanb@mellanox.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/iser@5234 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Replace iscsi-tcp specific calls with transport API calls
in order to be able to override them with iser implementation specifics.
Make iscsi-tcp specific debug print into a general print
Refactor conn close code to work with isert
Only allocate RX data in NOP for iscsi-tcp
In case of iser, the data is already received
Signed-off-by: Yan Burman <yanb@mellanox.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/iser@5230 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Avoid that sparse reports the following warning:
warning: 'prot_usage' may be used uninitialized in this function
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5227 d57e44dd-8a1f-0410-8b47-8ef2f437770f
The libfc implementation can handle long SG lists, hence increase
ft_scst_template.sg_tablesize from 128 to 65535.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5223 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Kernel versions before 2.6.26 do not have a definition for the
ACCESS_ONCE() macro, hence provide one.
Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5220 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Reduce the number of reservation state variables from (one per
device + one per session) to one per device. Introduce helper
functions for manipulating the SPC-2 reservation state.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5218 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Yan Burman
Bart Van Assche
Vladislav Bolkhovitin