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2007-07-17drivers/infiniband/hw/mthca/mthca_qp: kill uninit'd var warningJeff Garzik
drivers/infiniband/hw/mthca/mthca_qp.c: In function ‘mthca_tavor_post_send’: drivers/infiniband/hw/mthca/mthca_qp.c:1594: warning: ‘f0’ may be used uninitialized in this function drivers/infiniband/hw/mthca/mthca_qp.c: In function ‘mthca_arbel_post_send’: drivers/infiniband/hw/mthca/mthca_qp.c:1949: warning: ‘f0’ may be used uninitialized in this function Initializing 'f0' is not strictly necessary in either case, AFAICS. I was considering use of uninitialized_var(), but looking at the complex flow of control in each function, I feel it is wiser and safer to simply zero the var and be certain of ourselves. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-15Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (166 commits) [SCSI] ibmvscsi: convert to use the data buffer accessors [SCSI] dc395x: convert to use the data buffer accessors [SCSI] ncr53c8xx: convert to use the data buffer accessors [SCSI] sym53c8xx: convert to use the data buffer accessors [SCSI] ppa: coding police and printk levels [SCSI] aic7xxx_old: remove redundant GFP_ATOMIC from kmalloc [SCSI] i2o: remove redundant GFP_ATOMIC from kmalloc from device.c [SCSI] remove the dead CYBERSTORMIII_SCSI option [SCSI] don't build scsi_dma_{map,unmap} for !HAS_DMA [SCSI] Clean up scsi_add_lun a bit [SCSI] 53c700: Remove printk, which triggers because of low scsi clock on SNI RMs [SCSI] sni_53c710: Cleanup [SCSI] qla4xxx: Fix underrun/overrun conditions [SCSI] megaraid_mbox: use mutex instead of semaphore [SCSI] aacraid: add 51245, 51645 and 52245 adapters to documentation. [SCSI] qla2xxx: update version to 8.02.00-k1. [SCSI] qla2xxx: add support for NPIV [SCSI] stex: use resid for xfer len information [SCSI] Add Brownie 1200U3P to blacklist [SCSI] scsi.c: convert to use the data buffer accessors ...
2007-07-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (76 commits) IB: Update MAINTAINERS with Hal's new email address IB/mlx4: Implement query SRQ IB/mlx4: Implement query QP IB/cm: Send no match if a SIDR REQ does not match a listen IB/cm: Fix handling of duplicate SIDR REQs IB/cm: cm_msgs.h should include ib_cm.h IB/cm: Include HCA ACK delay in local ACK timeout IB/cm: Use spin_lock_irq() instead of spin_lock_irqsave() when possible IB/sa: Make sure SA queries use default P_Key IPoIB: Recycle loopback skbs instead of freeing and reallocating IB/mthca: Replace memset(<addr>, 0, PAGE_SIZE) with clear_page(<addr>) IPoIB/cm: Fix warning if IPV6 is not enabled IB/core: Take sizeof the correct pointer when calling kmalloc() IB/ehca: Improve latency by unlocking after triggering the hardware IB/ehca: Notify consumers of LID/PKEY/SM changes after nondisruptive events IB/ehca: Return QP pointer in poll_cq() IB/ehca: Change idr spinlocks into rwlocks IB/ehca: Refactor sync between completions and destroy_cq using atomic_t IB/ehca: Lock renaming, static initializers IB/ehca: Report RDMA atomic attributes in query_qp() ...
2007-07-12IB/mlx4: Implement query SRQJack Morgenstein
Signed-off-by: Dotan Barak <dotanb@mellanox.co.il> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-12IB/mlx4: Implement query QPJack Morgenstein
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-12Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (34 commits) PCI: Only build PCI syscalls on architectures that want them PCI: limit pci_get_bus_and_slot to domain 0 PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridge PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3 PCI: hotplug: pciehp: wait for 1 second after power off slot PCI: pci_set_power_state(): check for PM capabilities earlier PCI: cpci_hotplug: Convert to use the kthread API PCI: add pci_try_set_mwi PCI: pcie: remove SPIN_LOCK_UNLOCKED PCI: ROUND_UP macro cleanup in drivers/pci PCI: remove pci_dac_dma_... APIs PCI: pci-x-pci-express-read-control-interfaces cleanups PCI: Fix typo in include/linux/pci.h PCI: pci_ids, remove double or more empty lines PCI: pci_ids, add atheros and 3com_2 vendors PCI: pci_ids, reorder some entries PCI: i386: traps, change VENDOR to DEVICE PCI: ATM: lanai, change VENDOR to DEVICE PCI: Change all drivers to use pci_device->revision ...
2007-07-11sysfs: kill unnecessary attribute->ownerTejun Heo
sysfs is now completely out of driver/module lifetime game. After deletion, a sysfs node doesn't access anything outside sysfs proper, so there's no reason to hold onto the attribute owners. Note that often the wrong modules were accounted for as owners leading to accessing removed modules. This patch kills now unnecessary attribute->owner. Note that with this change, userland holding a sysfs node does not prevent the backing module from being unloaded. For more info regarding lifetime rule cleanup, please read the following message. http://article.gmane.org/gmane.linux.kernel/510293 (tweaked by Greg to not delete the field just yet, to make it easier to merge things properly.) Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11PCI: Change all drivers to use pci_device->revisionAuke Kok
Instead of all drivers reading pci config space to get the revision ID, they can now use the pci_device->revision member. This exposes some issues where drivers where reading a word or a dword for the revision number, and adding useless error-handling around the read. Some drivers even just read it for no purpose of all. In devices where the revision ID is being copied over and used in what appears to be the equivalent of hotpath, I have left the copy code and the cached copy as not to influence the driver's performance. Compile tested with make all{yes,mod}config on x86_64 and i386. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-10IB/cm: Send no match if a SIDR REQ does not match a listenSean Hefty
If a SIDR REQ does not match a listen, we should reply with status value 1 (service ID not supported), rather than dropping through to the default case of status 2 (rejected by service provider). Doing this also fixes a bug where the cm_id_priv is removed from the remote_sidr_table twice. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-10IB/cm: Fix handling of duplicate SIDR REQsSean Hefty
Fix handling to duplicate SIDR REQs to avoid sending a reject if a duplicate is detected. Duplicates should just be silently discarded. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-10IB/cm: cm_msgs.h should include ib_cm.hSean Hefty
cm_msgs.h uses definitions from ib_cm.h. Include it directly, rather than depending on a specific include order. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-10IB/cm: Include HCA ACK delay in local ACK timeoutSean Hefty
The IB CM should include the HCA ACK delay when calculating the local ACK timeout value to use for RC QPs. If the HCA ACK delay is large enough relative to the packet life time, then if it is not taken into account, the calculated timeout value ends up being too small, which can result in "retry exceeded" errors. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-10IB/cm: Use spin_lock_irq() instead of spin_lock_irqsave() when possibleSean Hefty
The ib_cm is a little over zealous about using spin_lock_irqsave, when spin_lock_irq would do. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-10IB/sa: Make sure SA queries use default P_KeySean Hefty
MADs sent to the SA should use the the default P_Key (0x7fff/0xffff). There's no requirement that the default P_Key is stored at index 0 in the local P_Key table, so add code to the sa_query module to look up the index of the default P_Key when creating an address handle for the SA (which is done any time the P_Key table might change), and use this index for all SA queries. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-10IPoIB: Recycle loopback skbs instead of freeing and reallocatingRoland Dreier
InfiniBand HCAs replicate multicast packets back to the QP that sent them if that QP is attached to the destination multicast group. This means that IPoIB multicasts are often replicated back to the receive queue of the interface that generated them. To avoid confusing the network stack, we drop these duplicates within the IPoIB driver. However, there's no reason to free the skb that received the duplicate and then immediately allocate a new skb to post to the receive queue. We can be more efficient and just repost the same skb. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-10IB/mthca: Replace memset(<addr>, 0, PAGE_SIZE) with clear_page(<addr>)Shani Moideen
Signed-off-by: Shani Moideen <shani.moideen@wipro.com> Signed-off-by: Roland Dreier <rolandd@cisco.com> ----
2007-07-10IPoIB/cm: Fix warning if IPV6 is not enabledRoland Dreier
Fix drivers/infiniband/ulp/ipoib/ipoib_cm.c:1151: warning: unused variable 'dev' by getting rid of the variable dev, which is only used if CONFIG_IPV6 is enabled, and replacing the one use of it with the value it is assigned, namely priv->dev. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-10IB/core: Take sizeof the correct pointer when calling kmalloc()Dotan Barak
When allocating out_mad in show_pma_counter(), take sizeof *out_mad instead of sizeof *in_mad. It is true that today the type of in_mad and out_mad are the same, but this patch will give us a cleaner code. Signed-off-by: Dotan Barak <dotanb@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Improve latency by unlocking after triggering the hardwareHoang-Nam Nguyen
Kick the hardware before unlocking the send/receive queue to overlap processing a little more. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Notify consumers of LID/PKEY/SM changes after nondisruptive eventsJoachim Fenkes
When firmware reports a nondisruptive port configuration change event, previous versions of the eHCA driver didn't forward the event to consumers like IPoIB. Add code that determines the type of configuration change by comparing old and new port attributes and reports it. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Return QP pointer in poll_cq()Joachim Fenkes
Also add two unlikely() statements. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Change idr spinlocks into rwlocksJoachim Fenkes
This eliminates lock contention among IRQs as well as the need to disable IRQs around idr_find, because there are no IRQ writers. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Refactor sync between completions and destroy_cq using atomic_tJoachim Fenkes
- ehca_cq.nr_events is made an atomic_t, eliminating a lot of locking. - The CQ is removed from the CQ idr first now to make sure no more completions are scheduled on that CQ. The "wait for all completions to end" code becomes much simpler this way. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Lock renaming, static initializersJoachim Fenkes
- Rename all spinlock flags to "flags", matching the vast majority of kernel code. - Move hcall_lock into the only file it's used in. - Replaced spin_lock_init() and friends with static initializers for global variables. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Report RDMA atomic attributes in query_qp()Hoang-Nam Nguyen
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Set SEND_GRH flag for all non-LL UD QPs on eHCA2Stefan Roscher
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Support UD low-latency QPsStefan Roscher
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: add Shared Receive Queue supportJoachim Fenkes
Support SRQs on eHCA2. Since an SRQ is a QP for eHCA2, a lot of code (structures, create, destroy, post_recv) can be shared between QP and SRQ. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: QP code restructuring in preparation for SRQJoachim Fenkes
- Replace init_qp_queues() by a shorter init_qp_queue(), eliminating duplicate code. - hipz_h_alloc_resource_qp() doesn't need a pointer to struct ehca_qp any longer. All input and output data is transferred through the parms parameter. - Change the interface to also support SRQ. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: HW level, HW caps and MTU autodetectionJoachim Fenkes
In preparation for support of new eHCA2 features, change adapter probing: - Hardware level is changed to encode major and minor chip version - Hardware capabilities are queried from the firmware - The maximum MTU is queried from the firmware instead of assuming a fixed value Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ehca: Change scaling_code parameter description to match default valueHoang-Nam Nguyen
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: return correct PortGUID in NodeInfoSean Hefty
Return the PortGUID of the correct port when responding to a NodeInfo query. Returning the SystemImageGUID causes issues when there are multiple HCAs in a single system. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: Remove bogus RD_ATOMIC checks from modify_qpArthur Jones
The changeset 3859e39d ("IB/ipath: Support larger IB_QP_MAX_DEST_RD_ATOMIC and IB_QP_MAX_QP_RD_ATOMIC") added support for larger RD_ATOMIC values, but it failed to take out the stricter checks that were before these and hence had no effect. This patch takes out the bogus checks.... Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: Test interrupts at driver startupArthur Jones
All too often, interrupts do not get enabled for our card due to BIOS misconfiguration and other issues. This patch checks for that condition on startup and warns the user. This patch is based on work (check LID availability) by Robert Walsh. Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: Remove support for preproduction HTX InfiniPath cardsRalph Campbell
Clean up some code by removing support for some older pre-production HTX InfiniPath cards. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
2007-07-09IB/ipath: Change version wording to be less confusing with release numberDave Olson
Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: Lower default number of kernel send buffersRalph Campbell
The default calculation for the number of send buffers to allocate to the kernel was too high for the PCIe version of the chip thus leaving fewer than desired send buffers for user MPI applications. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: Be more cautious about coming out of freeze modeDave Olson
We are more careful to be sure that we don't lose information about changes that occurred while we were in freeze mode, when the chip will not notify us, and try to avoid false error interrupts while doing cleanup. Put all of this logic in a new function ipath_clear_freeze(). Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: Add barrier before updating WC head in shared memoryRalph Campbell
Add a barrier to make sure the CPU doesn't reorder writes to memory, since user programs can be polling on the head index update and the entry should be written before that. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB: Use menuconfig for InfiniBand menuJan Engelhardt
Change Kconfig objects from "menu, config" into "menuconfig" so that the user can disable the whole feature without having to enter the menu first. Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09RDMA/cxgb3: Check return of kmalloc() in iwch_register_device()WANG Cong
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> [ Also remove cast from void * return of kmalloc() as suggested by Jesper Juhl <jesper.juhl@gmail.com>. ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09RDMA/cxgb3: Don't abort after failures sending the mpa replySteve Wise
This bug results in an abort request being sent down _after_ the tid has been released. If the tid happens to have been reused, then the subsequent generation of the tid gets incorrectly aborted. The thread running iwch_accecpt_cr() must not abort a connection if an error is returned after being awakened. If any errors did occur while iwch_accept_cr() is blocked, then the connection has already been aborted on the thread processing the error. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09RDMA/cxgb3: Don't post TID_RELEASE messageSteve Wise
The LLD does this for us in cxgb3_remove_tid(). Also fixed active open failure cases where we also shouldn't be releasing the TID. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09RDMA/cxgb3: ctrl-qp init/clear shouldn't set the gen bitSteve Wise
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09RDMA/cxgb3: Don't count neg_adv abort_req_rss messages as real abortsSteve Wise
Negative advice messages should _not_ count toward the 2 abort requests needed to indicate an abort request. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09RDMA/cxgb3: TERMINATE WRs can hang the tx ofld queueSteve Wise
Don't set the gen bits nor length bits in the terminate WR. This is done by the LLD driver. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09RDMA/cxgb3: Streaming -> RDMA mode transition fixesSteve Wise
Due to a HW issue, our current scheme to transition the connection from streaming to rdma mode is broken on the passive side. The firmware and driver now support a new transition scheme for the passive side: - driver posts rdma_init_wr (now including the initial receive seqno) - driver posts last streaming message via TX_DATA message (MPA start response) - uP atomically sends the last streaming message and transitions the tcb to rdma mode. - driver waits for wr_ack indicating the last streaming message was ACKed. NOTE: This change also bumps the required firmware version to 4.3. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09mlx4_core: Get the maximum message size from reported device capabilitiesDotan Barak
Get the maximum message size from the device capabilities returned from the QUERY_DEV_CAP firmware command, rather than hard-coding 2 GB. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: Update copyright datesJohn Gregor
Now that it's June, it's about time to update the copyright notices of files that have changed. Signed-off-by: John Gregor <john.gregor@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09IB/ipath: Clean send flags properly on QP resetRobert Walsh
Signed-off-by: Robert Walsh <robert.walsh@qlogic.com> Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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