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Abhiram Balasubramanian abhiram
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Anton Burtsev
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Charlie Jacobsen cjacobsen
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David Detweiler ddetweiler
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David Johnson johnsond
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- Jul 30, 2009
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Christof Schmitt authored
The trace record for SCSI abort requests has a field for the request id of the request to be aborted. Put the real request id instead of zero. Reviewed-by:
Swen Schillig <swen@vnet.ibm.com> Signed-off-by:
Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by:
James Bottomley <James.Bottomley@HansenPartnership.com>
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Swen Schillig authored
Under certain conditions it is possible that a WKA port ist not opened within the expected timeframe of half a second. In this situation the WKA port remains in the state OPENING preventing any succeding request to open the port. This led to unrecoverable remote ports. Fixing this by always setting an appropriate WKA port status before leaving the function and removing the timeout value here since it's not needed here because the general timeout processing would deal with it if required. Signed-off-by:
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Swen Schillig authored
In a LOWMEM condition an ERP notification would have been sent twice causing an unpredictable behaviour of the ERP. Signed-off-by:
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Christof Schmitt authored
When calling fc_remote_port_add make sure to not call it again before fc_remote_port_delete has been called. In other words, ensure to create a new fc_rport, then delete it, then create a new one again. Reviewed-by:
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Christof Schmitt authored
Depending on interruptions on some storage systems, the complete channel can stall which looks like an outbound queue stall to Linux. When trying to acquire a free SBAL for a non-SCSI command, zfcp waits for 5 seconds for a free slot to appear. This is the right place to detect a queue stall: If the wait times out, we assume a stalled queue and try to recover this. The overall strategy should be to trigger the erp from specific events, and not try an overall escalation from one failed port to a full-blown queue recovery. If we manage to send a command, the status codes for this command or a timeout will trigger the right follow-on actions. Reviewed-by:
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Christof Schmitt authored
If an action fails, retry it until the erp count exceeds the threshold. If there is something fundamentally wrong, the FSF layer will trigger a more appropriate action depending on the FSF status codes. The followup for successful actions is a different followup than retrying failed actions, so split the code two functions to make this clear. Reviewed-by:
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Christof Schmitt authored
After closing the port, we want it to be "not open" to consider the action to be successful. Reviewed-by:
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Christof Schmitt authored
-ENOMEM is for memory allocation problems, -EIO for queue/SBAL allocation problems. Reviewed-by:
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Christof Schmitt authored
The ELS ADISC and the GID_PN requests sent from zfcp fit into unchained FSF requests. Change the FSF allocation logic to use unchained requests whenever possible where everything fits in one SBAL. This avoids acquiring more SBALs than necessary, especially during zfcp recovery when things might be stalled. Reviewed-by:
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Christof Schmitt authored
zfcp_erp_notify uses the ZFCP_ERP_STATUS_* flags, so it is ZFCP_STATUS_ERP_LOWMEM instead of ZFCP_ERP_NOMEM. Signalling ZFCP_ERP_FAILED is not necessary, the missing d_id will show that the nameserver did not return the d_id. Reviewed-by:
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Christof Schmitt authored
When a fsf_req or a qtcb cannot be allocated return -ENOMEM instead of -EIO. Reviewed-by:
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Christof Schmitt authored
req_q_util is not atomic, so the qdio_stat_lock must be held when reading this variable. Reviewed-by:
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Swen Schillig authored
We should not modify the port status after triggering an ERP action for the port. It is not guaranteed which status is finally active when the ERP action is performed. This can lead to situations which are unwanted and hard to debug in case of a failure. Signed-off-by:
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- Jul 24, 2009
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Felix Beck authored
Every time a request is enqueued or there is some work outstanding from the ap_tasklet, the ap_poll_timer is scheduled again. Unfortunately it was permanently called. It looked as if it was started in the past and thus imediately expired. This has been changed. First it is checked if the hrtimer is already expired. Then the expiring time is forwarded and the timer restarted. Signed-off-by:
Felix Beck <felix.beck@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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- Jul 12, 2009
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Alexey Dobriyan authored
* Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- Jul 07, 2009
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Christian Borntraeger authored
From: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by:
Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by:
Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by:
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Stefan Haberland authored
remove loop, add some debug data and use get_sense function Signed-off-by:
Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by:
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Heiko Carstens authored
Fix this: drivers/s390/char/monreader.c: In function 'mon_open': drivers/s390/char/monreader.c:323: warning: passing argument 1 of 'dev_set_drvdata' from incompatible pointer type include/linux/device.h:457: note: expected 'struct device *' but argument is of type 'struct device **' drivers/s390/char/monreader.c: In function 'monreader_freeze': drivers/s390/char/monreader.c:466: warning: passing argument 1 of 'dev_get_drvdata' from incompatible pointer type include/linux/device.h:452: note: expected 'const struct device *' but argument is of type 'struct device **' Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
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Heiko Carstens authored
Define an empty static inline version of sclp_console_pm_event() to fix the build error below for !SCLP_CONSOLE. drivers/s390/built-in.o: In function `sclp_rw_pm_event': sclp_rw.c:(.text+0x12f68): undefined reference to `sclp_console_pm_event' Signed-off-by:
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- Jul 05, 2009
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Patrick McHardy authored
This patch converts the remaining occurences of raw return values to their symbolic counterparts in ndo_start_xmit() functions that were missed by the previous automatic conversion. Additionally code that assumed the symbolic value of NETDEV_TX_OK to be zero is changed to explicitly use NETDEV_TX_OK. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Patrick McHardy authored
This patch is the result of an automatic spatch transformation to convert all ndo_start_xmit() return values of 0 to NETDEV_TX_OK. Some occurences are missed by the automatic conversion, those will be handled in a seperate patch. Signed-off-by:
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- Jun 22, 2009
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Sebastian Ott authored
To set a dasd online dasd_change_state is called twice. The first cycle will schedule initial analysis of the device, set the rc to -EAGAIN and will not touch the device state any more. The initial analysis will in turn call dasd_change_state to increase the state to the final DASD_STATE_ONLINE. If the dasd_change_state on the second thread outruns the other one both finish with the state set to DASD_STATE_ONLINE and the device refcount will be decreased by 2. Fix this by leaving dasd_change_state on rc == -EAGAIN so that the refcount will always be decreased by 1. Signed-off-by:
Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by:
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Martin Schwidefsky authored
Replace the remaining direct accesses to the driver_data pointer with calls to the dev_get_drvdata() and dev_set_drvdata() functions. Signed-off-by: -
Stefan Haberland authored
The stop flags are handled in the generic restore function so the stop flag is removed also for FBA and DIAG devices. Signed-off-by:
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Felix Beck authored
Add Suspend/Resume support to ap bus and zcrypt. All enhancements are done in the ap bus. No changes in the crypto card specific part are necessary. Signed-off-by:
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Jan Glauber authored
Remove unneeded sanity checks from do_QDIO since this is the hot path. Change the type of bufnr and count to unsigned int so the check for the maximum value works. Reported-by:
Roel Kluin <roel.kluin@gmail.com> Signed-off-by:
Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by:
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Jan Glauber authored
It is not required to change the state of primed SBALs. Leaving them primed saves a SQBS instruction under z/VM. Signed-off-by:
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Jan Glauber authored
Since the adapter interrupt tasklet only schedules the queue tasklets and contains no code that requires serialization in can be merged with the adapter interrupt handler. That possibly safes some CPU cycles. Signed-off-by:
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Jan Glauber authored
For devices without QIOASSIST primed SBALS were extracted in a loop. Remove the loop since get_buf_states can already return more than one primed SBAL. Signed-off-by:
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Jan Glauber authored
The check whether qdio runs under z/VM was incorrect since SIGA-Sync is not set if the device runs with QIOASSIST. Use MACHINE_IS_VM instead to prevent polling under z/VM. Merge qdio_inbound_q_done and tiqdio_is_inbound_q_done. Signed-off-by:
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Jan Glauber authored
Move the adapter interrupt tasklet function to the qdio main code since all the functions used by the tasklet are located there. Signed-off-by:
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Michael Holzheu authored
When syncing the sclp console queue, we call del_timer_sync() while holding the "sclp_con_lock" spinlock. This lock is also taken in the timer function "sclp_console_timeout". Therefore the sync version of del_timer() cannot be used here. Because the synchronous deletion of the timer is only needed in the suspend callback and in that case only one CPU is remaining and therefore it is not possible that the timer function is running in parallel, we can safely use del_timer() instead of del_timer_sync(). Signed-off-by:
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Heiko Carstens authored
The slab allocator is earlier available so convert the bootmem allocations to slab/gfp allocations. Signed-off-by:
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Heiko Carstens authored
The slab allocator is earlier available so convert the bootmem allocations to slab/gfp allocations. Signed-off-by:
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Heiko Carstens authored
The slab allocator is earlier available so convert the bootmem allocations to slab/gfp allocations. Signed-off-by:
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Heiko Carstens authored
The slab allocator is earlier available so convert the bootmem allocations to slab/gfp allocations. Signed-off-by:
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- Jun 18, 2009
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Jiri Pirko authored
This patch is inspired by patch recently posted by Johannes Berg. Basically what my patch does is to group list and a count of addresses into newly introduced structure netdev_hw_addr_list. This brings us two benefits: 1) struct net_device becames a bit nicer. 2) in the future there will be a possibility to operate with lists independently on netdevices (with exporting right functions). I wanted to introduce this patch before I'll post a multicast lists conversion. Signed-off-by:
Jiri Pirko <jpirko@redhat.com> drivers/net/bnx2.c | 4 +- drivers/net/e1000/e1000_main.c | 4 +- drivers/net/ixgbe/ixgbe_main.c | 6 +- drivers/net/mv643xx_eth.c | 2 +- drivers/net/niu.c | 4 +- drivers/net/virtio_net.c | 10 ++-- drivers/s390/net/qeth_l2_main.c | 2 +- include/linux/netdevice.h | 17 +++-- net/core/dev.c | 130 ++++++++++++++++++-------------------- 9 files changed, 89 insertions(+), 90 deletions(-) Signed-off-by:
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- Jun 16, 2009
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Gerald Schaefer authored
Signed-off-by:
Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by:
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Gerald Schaefer authored
Signed-off-by:
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Gerald Schaefer authored
Signed-off-by:
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