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path: root/drivers/infiniband/hw
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2008-04-16RDMA/amso1100: Add check for NULL reply_msg in c2_intr()Tom Tucker2-3/+7
Fix a place where we might dereference a NULL pointer; this fixes Coverity CID 1392. On inspection I also found a place where we could attempt to kmem_cache_free() a NULL pointer, so fix this too. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/mlx4: Add support for resizing CQsVladimir Sokolovsky3-33/+270
Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/mlx4: Add support for modifying CQ moderation parametersEli Cohen3-0/+10
Signed-off-by: Eli Cohen <eli@mellnaox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16RDMA/amso1100: Add support for "send with invalidate" work requestsRoland Dreier2-8/+17
Handle IB_WR_SEND_WITH_INV work requests. This resurrects a patch sent long ago by Mikkel Hagen <mhagen@iol.unh.edu>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/core: Add support for "send with invalidate" work requestsRoland Dreier11-24/+23
Add a new IB_WR_SEND_WITH_INV send opcode that can be used to mark a "send with invalidate" work request as defined in the iWARP verbs and the InfiniBand base memory management extensions. Also put "imm_data" and a new "invalidate_rkey" member in a new "ex" union in struct ib_send_wr. The invalidate_rkey member can be used to pass in an R_Key/STag to be invalidated. Add this new union to struct ib_uverbs_send_wr. Add code to copy the invalidate_rkey field in ib_uverbs_post_send(). Fix up low-level drivers to deal with the change to struct ib_send_wr, and just remove the imm_data initialization from net/sunrpc/xprtrdma/, since that code never does any send with immediate operations. Also, move the existing IB_DEVICE_SEND_W_INV flag to a new bit, since the iWARP drivers currently in the tree set the bit. The amso1100 driver at least will silently fail to honor the IB_SEND_INVALIDATE bit if passed in as part of userspace send requests (since it does not implement kernel bypass work request queueing). Remove the flag from all existing drivers that set it until we know which ones are OK. The values chosen for the new flag is not consecutive to avoid clashing with flags defined in the XRC patches, which are not merged yet but which are already in use and are likely to be merged soon. This resurrects a patch sent long ago by Mikkel Hagen <mhagen@iol.unh.edu>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Update copyright dates for files changed in 2008Ralph Campbell18-18/+18
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: add calls to new 7220 code and enable in buildDave Olson13-136/+896
This patch adds the initialization calls into the new 7220 HCA files, changes the Makefile to compile and link the new files, and code to handle send DMA. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Misc changes to prepare for IB7220 introductionArthur Jones6-34/+83
The patch adds a number of minor changes to support newer HCAs: - New send buffer control bits - New error condition bits - Locking and initialization changes - More send buffers Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: User mode send DMAArthur Jones1-0/+879
A new file which allows the IBA7220 send DMA engine to be used from userland. The routines here are not linked in yet, that will happen in a follow-on patch... Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: User mode send DMA header fileArthur Jones1-0/+54
A new header file which allows the IBA7220 send DMA engine to be used from userland. The definitions here are not used yet, that will happen in a follow-on patch... Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Add code for IBA7220 send DMAJohn Gregor1-0/+743
The IBA7220 HCA has a new feature to DMA data to the on chip send buffers instead of or in addition to the host CPU doing the data transfer. This patch adds code to support the send DMA queue. Signed-off-by: John Gregor <john.gregor@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Add IBA7220-specific SERDES initialization dataRalph Campbell1-0/+1082
This patch adds binary data to initialize the IB SERDES. Signed-off-by: Michael Albaugh <Michael.Albaugh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Support for SerDes portion of IBA7220Michael Albaugh1-0/+1462
The control and initialization of the SerDes blocks of the IBA7220 is sufficiently complex to merit a separate file. Signed-off-by: Michael Albaugh <Michael.Albaugh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: HCA-specific code to support IBA7220Ralph Campbell1-0/+2571
This patch adds the HCA-specific code for the IBA7220 HCA. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Isolate 7220-specific contentMichael Albaugh1-0/+57
This patch adds a new ASIC-specific header file for the HCAs using the IBA7220. Signed-off-by: Michael Albaugh <Michael.Albaugh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Header file changes to support IBA7220Ralph Campbell4-54/+282
This is part of a patch series to add support for a new HCA. This patch adds new fields to the header files. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix up error handlingRalph Campbell3-17/+66
This patch makes chip reset more robust and reduces lock contention between user and kernel TID register updates. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix check for no interrupts to reliably fallback to INTxDave Olson3-22/+42
Newer HCAs support MSI interrupts and also INTx interrupts. Fix the code so that INTx can be reliably enabled if MSI interrupts are not working. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Enable reduced PIO update for HCAs that support it.Dave Olson3-1/+45
Newer HCAs have a threshold counter to reduce the number of DMAs the chip makes to update the PIO buffer availability status bits. This patch enables the feature. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Set LID filtering for HCAs that support it.Dave Olson1-2/+7
Whenever the LID is set, notify the HCA specific code so that the appropriate HW registers can be updated. Also log the info on the console at low priority. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Add support for IBTA 1.2 HeartbeatDave Olson2-3/+30
This patch adds code to enable/disable the IBTA 1.2 heartbeat for testing if the HCA supports it. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Make link state transition code ignore (transient) link recoveryDave Olson1-1/+15
The hardware-based recovery doesn't need any intervention, and in a few cases we can get a bit confused about state and skip steps such as turning off the link state LED when we consider recovery to be "down". So ignore this transition, and either we recover in hardware, or we transition to down, and will handle it then. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Add support for 7220 receive queue changesRalph Campbell10-225/+305
Newer HCAs have a HW option to write a sequence number to each receive queue entry and avoid a separate DMA of the tail register to memory. This patch adds support for these changes. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix some white space and code style issuesRalph Campbell6-35/+38
This patch makes some white space changes and minor non-functional changes to more closely match the code in OFED-1.3. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Allow old and new diagnostic packet formatsMichael Albaugh1-2/+7
This patch checks for old and new format writes to send a packet via the diagnostic interface. Signed-off-by: Michael Albaugh <Michael.Albaugh@Qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix time comparison to use time_after_eq()Robert P. J. Day1-1/+2
Raw comparison against jiffies will fail if jiffies wraps, although since ipath currently only supports 64-bit architectures, this is rather far-fetched. Still, it's better to use time_after_eq(). Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/mlx4: Micro-optimize mlx4_ib_post_send()Roland Dreier1-8/+8
Rather than have build_mlx_header() return a negative value on failure and the length of the segments it builds on success, add a pointer parameter to return the length and return 0 on success. This matches the calling convention used for build_lso_seg() and generates slightly smaller code -- eg, on 64-bit x86: add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-22 (-22) function old new delta mlx4_ib_post_send 2023 2001 -22 Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/mlx4: Add IPoIB LSO supportEli Cohen4-9/+73
Add TSO support to the mlx4_ib driver. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/core: Add creation flags to struct ib_qp_init_attrEli Cohen6-0/+20
Add a create_flags member to struct ib_qp_init_attr that will allow a kernel verbs consumer to create a pass special flags when creating a QP. Add a flag value for telling low-level drivers that a QP will be used for IPoIB UD LSO. The create_flags member will also be useful for XRC and ehca low-latency QP support. Since no create_flags handling is implemented yet, add code to all low-level drivers to return -EINVAL if create_flags is non-zero. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: EEPROM support for 7220 devices, robustness improvements, cleanupMichael Albaugh3-67/+439
Add support for reading newer card's EEPROMs while continuing to support older EEPROMs. Also, add support for the temperature sensor if present. Signed-off-by: Michael Albaugh <Michael.Albaugh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Use PIO buffer for RC ACKsRalph Campbell1-18/+39
This reduces the latency for RC ACKs when a PIO buffer is available. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Make send buffers available for kernel if not allocated to userRalph Campbell8-145/+225
A fixed partitioning of send buffers is determined at driver load time for user processes and kernel use. Since send buffers are a scarce resource, it makes sense to allow the kernel to use the buffers if they are not in use by a user process. Also, eliminate code duplication for ipath_force_pio_avail_update(). Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Prevent link-recovery code from negating admin disableMichael Albaugh6-29/+55
The link can be put in LINKDOWN_DISABLE state either locally or via a MAD. However, the link-recovery code will take it out of that state as a side-effect of attempts to clear SerDes/XGXS issues. We add a flag to indicate "link is down on purpose, leave it alone." Signed-off-by: Michael Albaugh <michael.albaugh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Remove some useless (void) castsRalph Campbell2-9/+9
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Change the module authorRalph Campbell1-1/+1
Update the module author to the current email address. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16RDMA/nes: Use more concise list_for_each_entry()Robert P. J. Day1-6/+2
In list iteration code, you normally wouldn't be calling "container_of()" directly anyway, you'd be invoking "list_entry()". But you don't even need that here, "list_for_each_entry()" is fine. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Acked-by: Glenn Streiff <gstreiff@neteffect.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16RDMA/nes: Remove session_id from nes_cm stuffRoland Dreier2-9/+0
The session_id members of struct nes_cm_listener and struct nes_cm_node are write-only, so remove them. This allows the session_id member of struct nes_cm_core to be removed as well, since it is only used to write those other session_id values. This removes the use of current->tgid (which will be deprecated) pointed out by Pavel Emelyanov <xemul@openvz.org>. Acked-by: Glenn Streiff <gstreiff@neteffect.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix PCI config write size used to clear linkctrl error bitsRoland Dreier1-1/+1
In slave_or_pri_blk(), pci_write_config_byte() is used to write a 16-bit quantity to clear linkctrl CRC error bits. This is clearly a bug and also causes the warning drivers/infiniband/hw/ipath/ipath_iba6110.c: In function 'slave_or_pri_blk': drivers/infiniband/hw/ipath/ipath_iba6110.c:849: warning: overflow in implicit constant conversion Fix this by using pci_write_config_word() instead. Acked-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix sanity checks on QP number of WRs and SGEsRalph Campbell1-10/+16
The receive queue number of WRs and SGEs shouldn't be checked if a SRQ is specified. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Remove useless commentsRalph Campbell1-2/+0
Remove useless comment about list removal since locks are held and the code checks that the QP is on the list before removing it. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: HW workaround for case where chip can send but not receiveDave Olson3-0/+24
Workaround a QLE7140 problem that in rare cases causes flow control problems after link recovery by forcing a link retrain after recovery. A module parameter is provided to control the behavior in case it causes problems. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Add code to support multiple link speeds and widthsRalph Campbell3-33/+69
This patch adds code to get/set portinfo to support multiple link speeds and widths. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Head of Line blocking vs forward progress of user appsJohn Gregor7-182/+310
There's a conflict between our need to quiesce PSM-based applications to avoid HoL blocking when the IB link goes down and the apps' desire to remain running so that their quiescence timout mechanism can keep running. The compromise is to STOP the processes for a fixed period of time and then alternate between CONT and STOP until the link is again active. If there are poor interactions with subnet manager configuration at a given site, the interval can be adjusted via a module paramter. Signed-off-by: John Gregor <john.gregor@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Make debug error message match the constraint that is checked forRalph Campbell1-1/+1
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Don't try to handle freeze mode HW errors if diagnostic modeRalph Campbell1-1/+1
Don't try to handle freeze mode HW errors if the driver is in diagnostic mode since some tests can cause errors that shouldn't be processed. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix link up LED displayArthur Jones1-1/+1
The check for link up was incorrect, thus setting the LED display inconsistently with the link state. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix error recovery for send buffer status after chip freeze modeRalph Campbell1-1/+2
The error recovery code for updating the driver's cached status information for which send buffers are busy or free wasn't updated for IBA7220. It should be similar to the initialization code in enable_chip(). Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/ipath: Fix byte order of pioavail in handle_errors()Ralph Campbell1-3/+3
Fix byte order of value assigned to pioavailshadow. This bug was detected by sparse endianness warnings. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/mthca: Avoid integer overflow when allocating huge ICM tableRoland Dreier1-1/+3
In mthca_alloc_icm_table(), the number of entries to allocate for the table->icm array is computed by calculating obj_size * nobj and then dividing by MTHCA_TABLE_CHUNK_SIZE. If nobj is really large, then obj_size * nobj may overflow and the division may get the wrong value (even a negative value). Fix this by calculating the number of objects per chunk and then dividing nobj by this value instead. This patch allows crazy configurations such as loading ib_mthca with the module parameter num_mtt=33554432 to work properly. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16IB/mthca: Avoid integer overflow when dealing with profile sizeRoland Dreier3-7/+10
mthca_make_profile() returns the size in bytes of the HCA context layout it creates, or a negative value if an error occurs. However, the return value is declared as u64 and the memfree initialization path casts this value to int to test if it is negative. This makes it think incorrectly than an error has occurred if the context size happens to be bigger than 2GB, since this turns into a negative int. Fix this by having mthca_make_profile() return an s64 and testing for an error by checking whether this 64-bit value itself is negative. Signed-off-by: Roland Dreier <rolandd@cisco.com>
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