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path: root/drivers/net/mlx4
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2007-10-09mlx4_core: Increase max number of QPs per multicast group to 56Jack Morgenstein1-1/+1
Increase the number of QPs allowed per multicast group from 8 to 56. This allows for one QP per core on 16-core systems, which are now quite common, and allows some space for future growth. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09IB/mlx4: Implement FMRsJack Morgenstein1-0/+165
Implement FMRs for mlx4. This is an adaptation of code from mthca. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09mlx4_core: Write MTTs from CPU instead with of WRITE_MTT FW commandJack Morgenstein4-43/+64
Write MTT entries directly to ICM from the driver (eliminating use of WRITE_MTT command). This reduces the number of FW commands needed to register an MR by at least a factor of 2 and speeds up memory registration significantly. This code will also be used to implement FMRs. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09mlx4_core: Fix meaning of dev->caps.reserved_mttsRoland Dreier1-1/+2
Everything that uses caps.reserved_mtts expects it to be a count of MTT segments, not MTT entries. So convert the value that the FW gives us to a count of segments. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09mlx4_core: Reserve the correct number of MTT segmentsRoland Dreier1-1/+1
Taking ilog2(dev->caps.reserved_mtts) to find out the order to pass to the MTT buddy allocator will do the wrong thing if reserved_mtts is ever not a power of 2. Be safe and use fls(dev->caps.reserved_mtts - 1). Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09mlx4_core: Support ICM tables in coherent memoryJack Morgenstein4-49/+112
Enable having ICM tables in coherent memory, and use coherent memory for the dMPT table. This will allow writing MPT entries for MRs both via the SW2HW_MPT command and also directly by the driver for FMR remapping without needing to flush or worry about cacheline boundaries. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09IB/mlx4: Display misc device information under /sys/class/infiniband/Jack Morgenstein2-9/+2
display the following device information under /sys/class/infiniband/mlx4_X: board_id, fw_ver, hw_rev, hca_type. This patch makes this information available to userspace utilities such as ibstat and ibv_devinfo. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09mlx4_core: Change capability decoding: SRC->XRCRoland Dreier1-1/+1
The SRC ("scalable RC") transport has been renamed to XRC ("extended RC"), to avoid having an abbreviation that is so easily confused with an abbreviation for "source." Update the HCA capability decoding output to use the new name. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09IB/mlx4: Fix up SRQ limit_watermark endiannessRoland Dreier1-1/+1
mlx4_srq_query() returns a big-endian 16-bit value through an int *, which screws up sparse checking. Fix this so that a CPU-endian value is returned. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09mlx4_core: Enable MSI-X by defaultMichael S. Tsirkin1-12/+22
Recover from MSI-X errors by automatically falling back on regular interrupt, instead of asking the user to do this manually. This makes it possible to enable MSI-X by default, and will make it possible to get rid of the msi_x module option in the future. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09mlx4_core: Don't free special QPs in QP number bitmapRoland Dreier1-1/+2
Special QPs are not allocated using the regular QP number bitmap, so when they are destroyed, their QP number should not be freed in the bitmap. Found by Dotan Barak of Mellanox. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09mlx4_core: Use enum value GO_BIT_TIMEOUT_MSECSDotan Barak1-2/+2
Rename GO_BIT_TIMEOUT to GO_BIT_TIMEOUT_MSECS for clarity, and actually use it as the go bit timeout (instead of having the define but then ignoring it and using a hard-coded 10 * HZ for the actual timeout). Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-08-13mlx4_core: Wait 1 second after reset before accessing deviceEli Cohen1-0/+3
Put a 1000 msec delay after resetting the device before attempting to do config cycles on it. Not waiting causes system hangs on some chipsets, e.g. Intel E7520, when the driver is loaded. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-28mlx4_core: Remove kfree() in mlx4_mr_alloc() error flowJack Morgenstein1-12/+3
mlx4_mr_alloc() doesn't actually allocate mr (it just initializes the pointer that the caller passes in), so it shouldn't free it if an error occurs. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-20mlx4_core: Change command token on timeoutRoland Dreier1-2/+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>
2007-07-17IB/mlx4: Increase max outstanding RDMA reads as targetJack Morgenstein1-1/+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>
2007-07-17mlx4_core: Reset device when internal error is detectedJack Morgenstein5-72/+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>
2007-07-12IB/mlx4: Implement query SRQJack Morgenstein1-0/+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>
2007-07-12IB/mlx4: Implement query QPJack Morgenstein1-0/+21
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-07-09mlx4_core: Get the maximum message size from reported device capabilitiesDotan Barak3-0/+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>
2007-07-09mlx4_core: Include linux/mutex.h from mlx4.hMichael S. Tsirkin1-0/+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>
2007-07-08drivers/net: fix comparisons of unsigned < 0Bill Nottingham1-2/+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>
2007-07-02mlx4_core: Add new Mellanox device IDsJack Morgenstein1-0/+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>
2007-06-18IB/mlx4: Handle FW command interface rev 3Roland Dreier3-47/+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>
2007-06-18IB/mlx4: Handle new FW requirement for send request prefetchingRoland Dreier1-1/+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>
2007-06-07mlx4_core: Don't set MTT address in dMPT entries with PA setJack Morgenstein1-3/+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>
2007-06-07mlx4_core: Check firmware command interface revisionRoland Dreier1-2/+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>
2007-06-07IB/mthca, mlx4_core: Fix typo in commentRoland Dreier1-1/+1
s/signifant/significant/ Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-06-07mlx4_core: Free catastrophic error MSI-X interrupt with correct dev_idRoland Dreier1-1/+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>
2007-06-07mlx4_core: Initialize ctx_list and ctx_lock earlierRoland Dreier2-3/+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>
2007-06-07mlx4_core: Fix CQ context layoutEli Cohen1-1/+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>
2007-05-29IB/mlx4: Fix last allocated object tracking in bitmap allocatorRoland Dreier1-1/+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>
2007-05-19mlx4_core: Fix array overrun in dump_dev_cap_flags()Roland Dreier1-1/+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>
2007-05-15missing includes in mlx4Al Viro4-0/+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>
2007-05-15Merge branch 'for-linus' of ↵Linus Torvalds2-3/+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.
2007-05-13mlx4_core: Remove unused doorbell_lockRoland Dreier2-3/+0
struct mlx4_priv.doorbell_lock is never used, so delete it. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-11mlx4: don't use deprecated IRQ flagsAndrew Morton1-1/+1
Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-08IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adaptersRoland Dreier20-0/+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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