- 21 Dec, 2015 40 commits
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Mitko Haralanov authored
The driver pins pages on behalf of user processes in two separate instances - when the process has submitted a SDMA transfer and when the process programs an expected receive buffer. When pinning pages, the driver is required to observe the locked page limit set by the system administrator and refuse to lock more pages than allowed. Such a check was done for expected receives but was missing from the SDMA transfer code path. This commit adds the missing check for SDMA transfers. As of this commit, user SDMA or expected receive requests will be rejected if the number of pages required to be pinned will exceed the set limit. Due to the fact that the driver needs to take the MM semaphore in order to update the locked page count (which can sleep), this cannot be done by the callback function as it [the callback] is executed in interrupt context. Therefore, it is necessary to put all the completed SDMA tx requests onto a separate list (txcmp) and offload the actual clean-up and unpinning work to a workqueue. Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by:
Ira Weiny <ira.weiny@intel.com> Signed-off-by:
Mitko Haralanov <mitko.haralanov@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mitko Haralanov authored
Convert hfi1_get_user_pages() to use get_user_pages_fast(), which is much fatster. The mm semaphore is still taken to update the pinned page count but is for a much shorter amount of time. Reviewed-by:
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Mitko Haralanov authored
There is no need to cleck if the packet queue is allocated when cleaning up a user context. The hfi1_user_sdma_free_queues() function already does all the required checks. Reviewed-by:
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Dennis Dalessandro authored
Now that the spinlock is not taken throughout hfi1_ioctl it is safe to return early rather than setting a variable and falling through the switch. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
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Dennis Dalessandro authored
This patch avoids issues while calling into copy from/to user while holding the lock by only taking the lock when it is absolutely required. The only commands which require the snoop lock are: *Set Filter *Clear Filter *Clear Queue Reviewed-by:
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Ira Weiny authored
Final clean up of the if/then/else clause for the parameter checks of hfi1_ioctl Signed-off-by:
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Ira Weiny authored
Set link state is not supported remove from the switch statement and allow the default to return -ENOTTY Signed-off-by:
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Ira Weiny authored
Rather than have a switch in a large else clause make the parameter checks return immediately. Signed-off-by:
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Ira Weiny authored
physState, linkState, and devState should be phys_state, link_state, and dev_state Signed-off-by:
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Ira Weiny authored
sizeof should use the variable rather than the struct definition to ensure that type changes are properly accounted for. Signed-off-by:
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Ira Weiny authored
Else statements should continue using braces even if there is only 1 line in the block. Found by checkpatch --strict Signed-off-by:
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Ira Weiny authored
Use !foo rather than (foo == NULL) as recommended by checkpatch --strict Signed-off-by:
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Ira Weiny authored
Add or remove whitespace according to checkpatch --strict Signed-off-by:
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Ira Weiny authored
Place logical operators at the end of the previous line when using a multi-line statement. Found by checkpatch --strict Signed-off-by:
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Ira Weiny authored
Fix line alignment in various places as caught by checkpatch --strict. Signed-off-by:
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Ira Weiny authored
Use BIT macros rather than shifts. Signed-off-by:
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Andrea Lowe authored
Changing the 32-bit reserved field in opa_port_data_counters_msg to the new 'resolution' field. PMA will use resolutions to right- shift values for LocalLinkIntegrity and LinkErrorRecovery when computing the ErrorCounterSummary for a DataPortCounters request. Reviewed-by:
Andrea Lowe <andrea.l.lowe@intel.com> Signed-off-by:
Jubin John <jubin.john@intel.com> Signed-off-by:
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Harish Chegondi authored
Currently, only MTUs of VLs 0-7 are checked when calculating the maximum VL MTU which is used to set the port MTU capability in DCC_CFG_PORT_CONFIG CSR This can cause a port MTU capability to be set to 0 if MTUs of VLs 0-7 is 0 This would affect the VL15 traffic. Reviewed-by:
Dean Luick <dean.luick@intel.com> Reviewed-by:
Arthur Kepner <arthur.kepner@intel.com> Signed-off-by:
Harish Chegondi <harish.chegondi@intel.com> Signed-off-by:
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Dean Luick authored
Change reported unknown frame messages into a counter. These are informational, no errors. Reviewed-by:
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Dean Luick authored
An SPC freeze is not an error. Remove the messages. Reviewed-by:
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Dean Luick authored
Only warn when link up pkeys are not what we expect. Also, allow for the pkey to already be initialized. Reviewed-by:
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Harish Chegondi authored
Currently, if hfi1_register_ib_device() call is unsuccessful, workqueues are not being destroyed before bailing out. This patch fixes this issue. Reviewed-by:
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Joel Rosenzweig authored
Provides error status counters for CceErrStatus, Send*ErrStatus, RcvErrStatus and MISC_ERR_STATUS Reviewed-by:
Joel Rosenzweig <joel.b.rosenzweig@intel.com> Signed-off-by:
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Dean Luick authored
Correctly reduce the number of VLs when limited by the number of SDMA engines. The hardware has multiple egress mechanisms, SDMA and pio, and multiples of those. These mechanisms are chosen using the VL (8) The fix corrects a panic issue with one of the platforms that doesn't have enough SDMA (4) mechanisms for the typical number of VLs. Reviewed-by:
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Dean Luick authored
When sending a diagnostic packet, if the send context does not have enough room, force a credit return and try again. Reviewed-by:
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Dean Luick authored
The longest quiet timeout is now 6s. Extend the driver wait to 6s. The driver wasn't following our internal specification: 6 seconds. This patch corrects that issue. Reviewed-by:
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Dean Luick authored
Add one-time LCB reset on driver load to pre-emptively work around any LCB power cycle issues. Reviewed-by:
Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by:
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Kaike Wan authored
This patch fixes a few incorrect header file comments in qp.h Reviewed-by:
Kaike Wan <kaike.wan@intel.com> Signed-off-by:
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Dean Luick authored
Add aeth name syndrome decode to enhance debugging. The IBTA RC ACK contains an ACK extended transport header. Part of that header is the syndrome field that qualifies the RC ACK as an ACK, NAK, or RNR NAK. Without the patch here is the syndrome decode: aeth syn 0x00 Here is the decode with the fix: aeth syn 0x00 ACK Reviewed-by:
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Dean Luick authored
Add CNP opcode decode. Prior to this patch the trace appeared like: <idle>-0 [001] d.h. 94062.578932: input_ibhdr: [0000:05:00.0] vl 0 lver 0 sl 0 lnh 2,LRH_BTH dlid 0003 len 6 slid 0001 op 0x80,0x80 se 0 m 0 pad 0 tver 0 pkey 0x8001 f 0 b 0 qpn 0x001234 a 0 psn 0x00000000 Note the "op 0x80,0x80". With this patch: <idle>-0 [000] d.h. 233975.912059: input_ibhdr: [0000:05:00.0] vl 0 lver 0 sl 0 lnh 2,LRH_BTH dlid 0015 len 6 slid 0014 op 0x80,CNP se 0 m 0 pad 0 tver 0 pkey 0x8001 f 0 b 0 qpn 0x001234 a 0 psn 0x00000000 Note the "op 0x80,CNP" Reviewed-by:
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Dean Luick authored
Add support for an automatic fallback for firmware names to support debug-signed and production-signed firmware images. Reviewed-by:
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Ira Weiny authored
sdma_select_engine_vl only needs to protect itself from an invalid VL. Something higher up the stack should be warning the user when they try to use an SL which maps to an invalid VL. Reviewed-by:
Ira Weiny <iweiny@gmail.com> Signed-off-by:
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Jubin John authored
hfi1 driver build fails with the following error: In function ‘handle_receive_interrupt’: error: implicit declaration of function ‘skip_rcv_packet’ [-Werror=implicit-function-declaration] last = skip_rcv_packet(&packet, thread); ^ This is due to the inclusion of the skip_rcv_packet() in the CONFIG_PRESCAN_RXQ ifdef block. This function is independent of CONFIG_PRESCAN_RXQ and should be outside this block. Fixes: 82c2611d ("staging/rdma/hfi1: Handle packets with invalid RHF on context 0") Reviewed-by: -
Dean Luick authored
Add a new EPROM partition, adjusting partition placement. Add EPROM range commands as a supserset of the partition commands. Remove old partition commands. Enhance EPROM erase, creating a range function and using the largest erase (sub) commands when possible. Reviewed-by:
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Dean Luick authored
Read an EFI variable for the device description. Create the infrastructure for additional variable reads. Reviewed-by:
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Mike Marciniszyn authored
The current is_bx() will incorrectly match on other steppings. is_a0() is removed in favor of is_ax(). Reviewed-by:
Mark Debbage <mark.debbage@intel.com> Signed-off-by:
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Jubin John authored
Space between concantenated string elements is more human readable and fixes the checkpatch issue: CHECK: Concatenated strings should use spaces between elements Reviewed-by:
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Ira Weiny authored
Rcv bubbles were improperly calculated for HFIs, fix that here. Reviewed-by:
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Vennila Megavannan authored
Removed the RxCtxRHQS counter being dumped into dev_cntrs Reviewed-by:
Vennila Megavannan <vennila.megavannan@intel.com> Signed-off-by:
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Dean Luick authored
A link downgrade can race with link up. Avoid the race in two ways. First, by having the downgrade application logic take the link state mutex for all of its checking. Second, by waiting for the link to move out of the going up state. Reviewed-by:
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