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path: root/drivers/infiniband/hw
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* IB/mthca: Free correct MPT on error exit from mthca_fmr_alloc()Roland Dreier2008-02-19
| | | | | | | | | When mthca_fmr_alloc() returns an error, it should free the MPT at the index key, not mr->ibmr.lkey, since the lkey has been mangled by hw_index_to_key() and no longer is the real index. This bug causes corruption of the MPT table free bitmap when mthca_fmr_alloc() fails. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/nes: Fix possible array overrunRoland Dreier2008-02-18
| | | | | | | | | | | | | | | | | | | | | | | | In nes_create_qp(), the test if (nesqp->mmap_sq_db_index > NES_MAX_USER_WQ_REGIONS) { is used to error out if the db_index is too large; however, if the test doesn't trigger, then the index is used as nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = nesqp; and mmap_nesqp is declared as struct nes_qp *mmap_nesqp[NES_MAX_USER_WQ_REGIONS]; which leads to an array overrun if the index is exactly equal to NES_MAX_USER_WQ_REGIONS. Fix this by bailing out if the index is greater than or equal to NES_MAX_USER_WQ_REGIONS. This was spotted by the Coverity checker (CID 2162). Acked-by: Glenn Streiff <gstreiff@neteffect.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/nes: Fix VLAN supportChien Tung2008-02-17
| | | | | | | | | | | We need to account for the VLAN header size in nes_netdev_change_mtu() and nes_netdev_init(). Also, add spin lock/unlock during VLAN RX registration so only one process can assign VLAN group for a given interface at a time. Signed-off-by: Chien Tung <ctung@neteffect.com> Signed-off-by: Glenn Streiff <gstreiff@neteffect.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/nes: Fix MAC interrupt erroneously masked on ifdownGlenn Streiff2008-02-15
| | | | | | | | | | Only mask out MAC interrupt if necessary and re-enable on ifup. There could be multiple netdevs going through the same MAC. MAC interrupts should not be masked off until the last netdev is downed. Signed-off-by: Chien Tung <ctung@neteffect.com> Signed-off-by: Glenn Streiff <gstreiff@neteffect.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: mlx4_ib_fmr_alloc() should call mlx4_fmr_enable()Jack Morgenstein2008-02-14
| | | | | | | | | Currently mlx4_ib_fmr_alloc() calls mlx4_mr_enable() instead of mlx4_fmr_enable(). The two functions are equivalent at the moment, but this is not really correct (and the change is needed to fix a bug). Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Convert to use be16_add_cpu()Marcin Slusarz2008-02-13
| | | | | | | | | | | | | | | | | | replace: big_endian_variable = cpu_to_beX(beX_to_cpu(big_endian_variable) + expression_in_cpu_byteorder); with: beX_add_cpu(&big_endian_variable, expression_in_cpu_byteorder); Generated with a semantic patch. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cxgb3: Fail loopback connectionsSteve Wise2008-02-13
| | | | | | | | The cxgb3 HW and driver don't support loopback RDMA connections. So fail any connection attempt where the destination address is local. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Add missing sg_init_table() in mthca_map_user_db()Roland Dreier2008-02-12
| | | | | | | | Usually harmless, since the scatterlist is always hard-coded to a length of 1, but it triggers a BUG() if CONFIG_DEBUG_SG=y, so we better fix it. This fixes <http://bugzilla.kernel.org/show_bug.cgi?id=9934>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Use multiple WQ blocks to post smaller send WQEsJack Morgenstein2008-02-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | ConnectX HCA supports shrinking WQEs, so that a single work request can be made of multiple units of wqe_shift. This way, WRs can differ in size, and do not have to be a power of 2 in size, saving memory and speeding up send WR posting. Unfortunately, if we do this then the wqe_index field in CQEs can't be used to look up the WR ID anymore, so our implementation does this only if selective signaling is off. Further, on 32-bit platforms, we can't use vmap() to make the QP buffer virtually contigious. Thus we have to use constant-sized WRs to make sure a WR is always fully within a single page-sized chunk. Finally, we use WRs with the NOP opcode to avoid wrapping around the queue buffer in the middle of posting a WR, and we set the NoErrorCompletion bit to avoid getting completions with error for NOP WRs. However, NEC is only supported starting with firmware 2.2.232, so we use constant-sized WRs for older firmware. And, since MLX QPs only support SEND, we use constant-sized WRs in this case. When stamping during NOP posting, do stamping following setting of the NOP WQE valid bit. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Consolidate code to get an entry from a struct mlx4_bufRoland Dreier2008-02-07
| | | | | | | | | | We use struct mlx4_buf for kernel QP, CQ and SRQ buffers, and the code to look up an entry is duplicated in get_cqe_from_buf() and the QP and SRQ versions of get_wqe(). Factor this out into mlx4_buf_offset(). This will also make it easier to switch over to using vmap() for buffers. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/nes: Add a driver for NetEffect RNICsGlenn Streiff2008-02-04
| | | | | | | Add a standard NIC and RDMA/iWARP driver for NetEffect 1/10Gb ethernet adapters. Signed-off-by: Glenn Streiff <gstreiff@neteffect.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Return proper error codes from mthca_fmr_alloc()Olaf Kirch2008-02-04
| | | | | | | | | | If the allocation of the MTT or the mailbox failed, mthca_fmr_alloc() would return 0 (success) no matter what. This leads to crashes a little down the road, when we try to dereference eg mr->mtt, which was really ERR_PTR(-Ewhatever). Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Avoid marking __devinitdata as constRoland Dreier2008-02-04
| | | | Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Actually print out the driver versionRoland Dreier2008-02-04
| | | | | | | The string mlx4_ib_version was defined, but never used. Print out the version once when the first device is initialized. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ib_mthca: Pre-link receive WQEs in Tavor modeEli Cohen2008-02-04
| | | | | | | | | | | | We have recently discovered that Tavor mode requires each WQE in a posted list of receive WQEs to have a valid NDA field at all times. This requirement holds true for regular QPs as well as for SRQs. This patch prelinks the receive queue in a regular QP and keeps the free list in SRQ always properly linked. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Reviewed-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Remove checks for srq->first_free < 0Eli Cohen2008-02-04
| | | | | | | | The SRQ receive posting functions make sure that srq->first_free never becomes negative, so we can remove tests of whether it is negative. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Don't read reserved fields in mlx4_QUERY_ADAPTER()Jack Morgenstein2008-02-04
| | | | | | | | | | | The firmware QUERY_ADAPTER command does not return vendor_id, device_id, and revision_id; eliminate these fields from the query. Initialize the rev_id field of the mlx4 device via init_node_data (MAD IFC query), as is done in the query_device verb implementation. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Don't read reserved fields in mthca_QUERY_ADAPTER()Jack Morgenstein2008-02-04
| | | | | | | | | | | | | For memfree devices, the firmware QUERY_ADAPTER command does not return vendor_id, device_id, and revision_id; do not return these fields in the QUERY_ADAPTER function for memfree devices. Instead, for memfree devices, initialize the rev_id field of the mthca device via init_node_data (MAD IFC query), as is done in the query_device verb implementation. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Fix and simplify page size calculation in mthca_reg_phys_mr()Roland Dreier2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In mthca_reg_phys_mr(), we calculate the page size for the HCA hardware to use to map the buffer list passed in by the consumer. For example, if the consumer passes in [0] addr 0x1000, size 0x1000 [1] addr 0x2000, size 0x1000 then the algorithm would come up with a page size of 0x2000 and a list of two pages, at 0x0000 and 0x2000. Usually, this would work fine since the memory region would start at an offset of 0x1000 and have a length of 0x2000. However, the old code did not take into account the alignment of the IO virtual address passed in. For example, if the consumer passed in a virtual address of 0x6000 for the above, then the offset of 0x1000 would not be used correctly because the page mask of 0x1fff would result in an offset of 0. We can fix this quite neatly by making sure that the page shift we use is no bigger than the first bit where the start of the first buffer and the IO virtual address differ. Also, we can further simplify the code by removing the special case for a single buffer by noticing that it doesn't matter if we use a page size that is too big. This allows the loop to compute the page shift to be replaced with __ffs(). Thanks to Bryan S Rosenburg <rosnbrg@us.ibm.com> for pointing out the original bug and suggesting several ways to improve this patch. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Add PMA supportHoang-Nam Nguyen2008-02-04
| | | | | | | | | | This patch enables ehca to redirect any PMA queries to the actual PMA QP. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Reviewed-by: Joachim Fenkes <fenkes@de.ibm.com> Reviewed-by: Christoph Raisch <raisch@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Update sma_attr also in case of disruptive config changeJoachim Fenkes2008-02-04
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Prevent sending UD packets to QP0Joachim Fenkes2008-02-04
| | | | | | | | | | | | The IB spec doesn't allow packets to QP0 sent on any other VL than VL15. Hardware doesn't filter those packets on the send side, so we need to do this in the driver and firmware. As eHCA doesn't support QP0, we can just filter out all traffic going to QP0, regardless of SL or VL. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25Linus Torvalds2008-01-29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25: (1470 commits) [IPV6] ADDRLABEL: Fix double free on label deletion. [PPP]: Sparse warning fixes. [IPV4] fib_trie: remove unneeded NULL check [IPV4] fib_trie: More whitespace cleanup. [NET_SCHED]: Use nla_policy for attribute validation in ematches [NET_SCHED]: Use nla_policy for attribute validation in actions [NET_SCHED]: Use nla_policy for attribute validation in classifiers [NET_SCHED]: Use nla_policy for attribute validation in packet schedulers [NET_SCHED]: sch_api: introduce constant for rate table size [NET_SCHED]: Use typeful attribute parsing helpers [NET_SCHED]: Use typeful attribute construction helpers [NET_SCHED]: Use NLA_PUT_STRING for string dumping [NET_SCHED]: Use nla_nest_start/nla_nest_end [NET_SCHED]: Propagate nla_parse return value [NET_SCHED]: act_api: use PTR_ERR in tcf_action_init/tcf_action_get [NET_SCHED]: act_api: use nlmsg_parse [NET_SCHED]: act_api: fix netlink API conversion bug [NET_SCHED]: sch_netem: use nla_parse_nested_compat [NET_SCHED]: sch_atm: fix format string warning [NETNS]: Add namespace for ICMP replying code. ...
| * [NETNS]: Add namespace parameter to ip_route_output_flow.Denis V. Lunev2008-01-28
| | | | | | | | | | | | | | Needed to propagate it down to the __ip_route_output_key. Signed_off_by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | INFINIBAND: Remove 'TOPDIR' from MakefilesWANG Cong2008-01-28
|/ | | | | | | | | | | This patch removes TOPDIR from infiniband Makefile and delete one include statement pointing to a non-existing directory Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <mshefty@ichips.intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* RDMA/cxgb3: Fix the T3A workaround checksSteve Wise2008-01-25
| | | | | | | | Correctly work around T3A issues by checking "hwtype != T3A" instead of "hwtype == T3B". This will be needed for new hardware types. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Remove unnecessary castJan Engelhardt2008-01-25
| | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cxgb3: Mark QP as privileged based on user capabilitiesSteve Wise2008-01-25
| | | | | | | This is needed to support zero-stag properly. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cxgb3: Fix page shift calculation in build_phys_page_list()Steve Wise2008-01-25
| | | | | | | | | | | | | | | | | | | The existing logic incorrectly maps this buffer list: 0: addr 0x10001000, size 0x1000 1: addr 0x10002000, size 0x1000 To this bogus page list: 0: 0x10000000 1: 0x10002000 The shift calculation must also take into account the address of the first entry masked by the page_mask as well as the last address+size rounded up to the next page size. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cxgb3: Flush the receive queue when closingSteve Wise2008-01-25
| | | | | | | | | - for kernel mode cqs, call event notification handler when flushing. - flush QP when moving from RTS -> CLOSING. - fix logic to identify a kernel mode qp. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Trivial simplification of ipath_make_ud_req()Ralph Campbell2008-01-25
| | | | | | | | Move the increment of s_hdrwords into the existing if block that tests if we're doing a send with immediate, to save one test of the opcode. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Update latest "native Arbel" firmware revisionRoland Dreier2008-01-25
| | | | Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Add mappings from HW register to PortInfo port physical stateRalph Campbell2008-01-25
| | | | | | | | Add new mappings from port physical state (a HW register value) to the IB SubnGet(PortInfo) port physical state. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Changes to support PIO bandwidth check on IBA7220Dave Olson2008-01-25
| | | | | | | | | | | The IBA7220 uses a count-based triggering mechanism, and therefore can't use the same bandwidth verification mechanism as older chips. To support the 7220, allow enabling and disabling armlaunch errors on application request. Minor robustness improvements as well. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Minor cleanup of unused fields and chip-specific errorsDave Olson2008-01-25
| | | | | | | Clean up some unused header fields, minor related cleanup. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: New sysfs entries to control 7220 featuresMichael Albaugh2008-01-25
| | | | | | | | | IBA7220 includes many more configurable IB settings. Getting/setting these is now grouped into a pair of chip specific functions accessed via function pointers. Provide sysfs access to these settings. Signed-off-by: Michael Albaugh <michael.albaugh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Add new chip-specific functions to older chips, consistent initDave Olson2008-01-25
| | | | | | | | | This adds the new (sometimes empty) chip-specific functions to the older chips, and makes the initialization and related functions consistent across all 3 chips. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Remove unused MDIO interface codeDave Olson2008-01-25
| | | | | | | | This code has been unused for some time, but still had leftovers from when it was used. Signed-off-by: Dave Olson <dave.olson@qlogic.com Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Prevent RDMA-related connection failures on some eHCA2 hardwareJoachim Fenkes2008-01-25
| | | | | | | | | | | | | | Some HW revisions of eHCA2 may cause an RC connection to break if they received RDMA Reads over that connection before. This can be prevented by assuring that, after the first RDMA Read, the QP receives a new RDMA Read every few million link packets. Include code into the driver that inserts an empty (size 0) RDMA Read into the message stream every now and then if the consumer doesn't post them frequently enough. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Add "port connection autodetect mode"Hoang-Nam Nguyen2008-01-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enhances ehca with a capability to "autodetect" the ports being connected physically. In order to utilize that function the module option nr_ports must be set to -1 (default is 2 - two ports). This feature is experimental and will made the default later. More detail: If the user connects only one port to the switch, current code requires 1) port one to be connected and 2) module option nr_ports=1 to be given. If autodetect is enabled, ehca will not wait at creation of the GSI QP for the respective port to become active. Since firmware does not accept modify_qp() while the port is down at initialization, we need to cache all calls to modify_qp() for the SMI/GSI QP and just return a good return code. When a port is activated and we get a PORT_ACTIVE event, we replay the cached modify-qp() parms and re-trigger any posted recv WRs. Only then do we forward the PORT_ACTIVE event to registered clients. The result of this autodetect patch is that all ports will be accessible by the users. Depending on their respective cabling only those ports that are connected properly will become operable. If a user tries to modify a regular QP of a non-connected port, modify_qp() will fail. Furthermore, ibv_devinfo should show the port state accordingly. Note that this patch primarily improves the loading behaviour of ehca. If the cable is removed while the driver is operating and plugged in again, firmware will handle that properly by sending an appropriate async event. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Define array to store SMI/GSI QPsHoang-Nam Nguyen2008-01-25
| | | | | Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Remove CQ-QP-link before destroying QP in error path of create_qp()Hoang-Nam Nguyen2008-01-25
| | | | | Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Fix some sparse warnings about shadowed symbolsRoland Dreier2008-01-25
| | | | | | | | | | There are a few places in the ipath driver where a variable is re-declared within a block where it is already in scope. Most of these extra declarations can simply be removed, since the variable from the outer scope is used in a way so that it does not need to keep its variable across the block with the re-declaration. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cxgb3: Endianness annotation for irs fieldRoland Dreier2008-01-25
| | | | | | | t3_rdma_init_wr.irs is a big-endian field, so declare it as __be32. This fixes one sparse warning. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Use round_jiffies() for EQ polling timerAnton Blanchard2008-01-25
| | | | | | | | | Use round_jiffies() to align ehca's 1-second timer with other timers and potentially save power by sleeping cores for longer. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Drop support for the original QHT7040 boardDave Olson2008-01-25
| | | | | | | | | | The original QHT7040 had significant performance issues so there was an additional check in the driver for a newer serial number. Support for the small quantities of that board shipped has been dropped, so this patch removes the special checks to simplify the code. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Add ipath_read_ireg() abstractionArthur Jones2008-01-25
| | | | | | | | Different chips have different width interrupt status registers, so add a flag and accessor function to decide which width register read to use. Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Add flag and handling for chips with swapped register bugRalph Campbell2008-01-25
| | | | | | | | | The 6110 had a bug that caused some registers to be swapped; it was fixed for the 7220 (and didn't affect the 6120 because it had fewer registers). This adds a flag and related code to handle that, and includes some minor cleanups in the same area. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
* IB/ipath: Port config has on-chip effects for 7220Ralph Campbell2008-01-25
| | | | | | | | | | The number of configured ports for the 7220 changes the number of eager TIDs available per port, for all but port 0 (kernel port) which remains constant, so add a field to give port0 count separate from the portdata structure. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Allow more flexible user register alignmentsRalph Campbell2008-01-25
| | | | | | | | | User registers have different alignments on different chips (4KB on older, 64KB on 7220). Allow mapping the user registers on kernels with page sizes up to 64K. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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