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path: root/drivers/net/mlx4
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* mlx4_core: Change command token on timeoutRoland Dreier2007-07-201-2/+1
| | | | | | | | | | | | | | The FW command token is currently only updated on a command completion event. This means that on command timeout, the same token will be reused for new command, which results in a mess if the timed out command *does* eventually complete. This is the same change as the patch for mthca from Michael S. Tsirkin <mst@dev.mellanox.co.il> that was just merged. It seems sensible to avoid gratuitous differences in FW command processing between mthca and mlx4. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Increase max outstanding RDMA reads as targetJack Morgenstein2007-07-171-1/+1
| | | | | | | | | | | Change the maximum number of outstanding RDMA reads allowed as a target from 4 to 16 to per QP. This allows RDMA read operations to pipeline better. Pointed out by Dotan Barak and Sagi Rotem. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Reset device when internal error is detectedJack Morgenstein2007-07-175-72/+129
| | | | | | | | | | | | Reset the device when an internal error is detected. Also, detect errors by polling the error buffer rather than using interrupts. This is more robust and doesn't depend on MSI-X. Remove the old interrupt handler entirely, since we don't want to support two mechanisms for detecting internal errors. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Implement query SRQJack Morgenstein2007-07-121-0/+30
| | | | | | 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>
* IB/mlx4: Implement query QPJack Morgenstein2007-07-121-0/+21
| | | | | Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Get the maximum message size from reported device capabilitiesDotan Barak2007-07-093-0/+5
| | | | | | | | | | 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>
* mlx4_core: Include linux/mutex.h from mlx4.hMichael S. Tsirkin2007-07-091-0/+1
| | | | | | | | | mlx4.h uses struct mutex, so although <linux/mutex.h> seems to be pulled in indirectly by one of the headers it includes, the right thing to do is to include <linux/mutex.h> directly. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* drivers/net: fix comparisons of unsigned < 0Bill Nottingham2007-07-081-2/+1
| | | | | | | Recent gcc versions emit warnings when unsigned variables are compared < 0 or >= 0. Signed-off-by: Bill Nottingham <notting@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* mlx4_core: Add new Mellanox device IDsJack Morgenstein2007-07-021-0/+2
| | | | | | | Add new IDs for PCIe gen2 devices. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Handle FW command interface rev 3Roland Dreier2007-06-183-47/+87
| | | | | | | | | | | Upcoming firmware introduces command interface revision 3, which changes the way port capabilities are queried and set. Update the driver to handle both the new and old command interfaces by adding a new MLX4_FLAG_OLD_PORT_CMDS that it is set after querying the firmware interface revision and then using the correct interface based on the setting of the flag. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Handle new FW requirement for send request prefetchingRoland Dreier2007-06-181-1/+1
| | | | | | | | | | | | | | | | | | | | | New ConnectX firmware introduces FW command interface revision 2, which requires that for each QP, a chunk of send queue entries (the "headroom") is kept marked as invalid, so that the HCA doesn't get confused if it prefetches entries that haven't been posted yet. Add code to the driver to do this, and also update the user ABI so that userspace can request that the prefetcher be turned off for userspace QPs (we just leave the prefetcher on for all kernel QPs). Unfortunately, marking send queue entries this way is confuses older firmware, so we change the driver to allow only FW command interface revisions 2. This means that users will have to update their firmware to work with the new driver, but the firmware is changing quickly and the old firmware has lots of other bugs anyway, so this shouldn't be too big a deal. Based on a patch from Jack Morgenstein <jackm@dev.mellanox.co.il>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Don't set MTT address in dMPT entries with PA setJack Morgenstein2007-06-071-3/+5
| | | | | | | | If a dMPT entry has the PA flag (direct physical address) set, then the (unused) MTT base address field has to be set to 0. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Check firmware command interface revisionRoland Dreier2007-06-071-2/+23
| | | | | | | | | | HCA firmware with incompatible changes to the FW commmand interface is coming soon. Add a check of the interface revision during initialization and bail out if the firmware advertises a revision that the driver doesn't know about. This will avoid strange failures later if the driver goes on using the wrong interface revision. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca, mlx4_core: Fix typo in commentRoland Dreier2007-06-071-1/+1
| | | | | | s/signifant/significant/ Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Free catastrophic error MSI-X interrupt with correct dev_idRoland Dreier2007-06-071-1/+3
| | | | | | | | We need to pass the same dev_id to free_irq() and request_irq(). When using MSI-X, the MLX4_EQ_CATAS interrupt uses a different dev_id from the other interrupts. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Initialize ctx_list and ctx_lock earlierRoland Dreier2007-06-072-3/+2
| | | | | | | | | | | | | We may call mlx4_dispatch_event() before mlx4_register_device() is called for a device, because for example a catastrophic error happens immediately after we enable interrupts. Therefore priv->ctx_list and priv->ctx_lock need to be initialized earlier. This bug was actually exposed by the MSI-X bug that returned IRQ numbers to drivers in reverse order, so that the first FW command interrupt looked to mlx4 like a catastrophic error. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Fix CQ context layoutEli Cohen2007-06-071-1/+1
| | | | | | | | | | | The reserved6 field should be 64 bits, not just 16 bits. Without this, the structure does not match the hardware layout on 32-bit architectures: the db_rec_addr field ends up at offset 52 instead of offset 56. The bug slipped by because the alignment of __be64 members ends up putting it in the right place on x86-64. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Fix last allocated object tracking in bitmap allocatorRoland Dreier2007-05-291-1/+1
| | | | | | | | Set last allocated object to the object after the one just allocated before ORing in the extra top bits. Also handle the case where this wraps around. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Fix array overrun in dump_dev_cap_flags()Roland Dreier2007-05-191-1/+1
| | | | | | | | Don't overrun fname[] array when decoding device flags. This was spotted by the Coverity checker (CID 1642). Signed-off-by: Roland Dreier <rolandd@cisco.com>
* missing includes in mlx4Al Viro2007-05-154-0/+4
| | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeff Garzik <jeff@garzik.org> Acked-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2007-05-152-3/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: IPoIB/cm: Optimize stale connection detection IB/mthca: Set cleaned CQEs back to HW ownership when cleaning CQ IB/mthca: Fix posting >255 recv WRs for Tavor RDMA/cma: Add check to validate that cm_id is bound to a device RDMA/cma: Fix synchronization with device removal in cma_iw_handler RDMA/cma: Simplify device removal handling code IB/ehca: Disable scaling code by default, bump version number IB/ehca: Beautify sysfs attribute code and fix compiler warnings IB/ehca: Remove _irqsave, move #ifdef IB/ehca: Fix AQP0/1 QP number IB/ehca: Correctly set GRH mask bit in ehca_modify_qp() IB/ehca: Serialize hypervisor calls in ehca_register_mr() IB/ipath: Shadow the gpio_mask register IB/mlx4: Fix uninitialized spinlock for 32-bit archs mlx4_core: Remove unused doorbell_lock net: Trivial MLX4_DEBUG dependency fix.
| * mlx4_core: Remove unused doorbell_lockRoland Dreier2007-05-132-3/+0
| | | | | | | | | | | | struct mlx4_priv.doorbell_lock is never used, so delete it. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | mlx4: don't use deprecated IRQ flagsAndrew Morton2007-05-111-1/+1
|/ | | | | | Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adaptersRoland Dreier2007-05-0820-0/+6424
Add an InfiniBand driver for Mellanox ConnectX adapters. Because these adapters can also be used as ethernet NICs and Fibre Channel HBAs, the driver is split into two modules: mlx4_core: Handles low-level things like device initialization and processing firmware commands. Also controls resource allocation so that the InfiniBand, ethernet and FC functions can share a device without stepping on each other. mlx4_ib: Handles InfiniBand-specific things; plugs into the InfiniBand midlayer. Signed-off-by: Roland Dreier <rolandd@cisco.com>
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