- 26 1月, 2008 13 次提交
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由 Dave Olson 提交于
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: NRoland Dreier <rolandd@cisco.com>
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由 Arthur Jones 提交于
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: NArthur Jones <arthur.jones@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
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: NRalph Campbell <ralph.campbell@qlogic.com>
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由 Ralph Campbell 提交于
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: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
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: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
Various hardware counters are exported via the ipath file system (since it is binary data). The old file format was very dependent on the HW offsets for these registers. Newer HCA chips can have different counters at different offsets. This patch adds a level of indirection to make the file format consistent across HCAs. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
Add support for QLogic HCAs which have hardware performance sampling registers for PortSamplesControl and PortSamplesResult MADs. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Dave Olson 提交于
This patch moves some arrays that were defined per-device to be variables defined in the per context data structure, thus avoiding extra kzalloc() calls. Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Dave Olson 提交于
In preparation for upcoming chips that have different values for INFINIPATH_R_PORTENABLE_SHIFT, INFINIPATH_R_INTRAVAIL_SHIFT, INFINIPATH_R_TAILUPD_SHIFT, and portcfg_shift, remove the shared #defines and use device-specific variables instead. Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
kreceive is now portdata * instead of devdata * and other kreceive related cleanups.... Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 John Gregor 提交于
Code review pointed out that the locking around uses of ipath_sendctrl and kr_sendctrl were, in several places, incorrect and/or inconsistent. Signed-off-by: NJohn Gregor <john.gregor@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
At one point in time there was code to allow a user process to wait for a send buffer if none were available. This feature was never used and most of the code was removed. This removes some missed unused code. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Matthias Kaehlcke 提交于
Signed-off-by: NMatthias Kaehlcke <matthias.kaehlcke@gmail.com> Acked-by: NMichael Albaugh <Michael.Albaugh@qlogic.com> Tested-by: NArthur Jones <arthur.jones@qlogic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 25 1月, 2008 1 次提交
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由 Greg Kroah-Hartman 提交于
Make the ipath driver use the new driver functions so that it does not touch the sysfs portion of the driver structure. We also remove the redundant symlink from the device back to the driver, as it is already in the sysfs tree. Any userspace tools should be using the standard symlink, not some driver specific one. Cc: Roland Dreier <rdreier@cisco.com> Cc: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: Arthur Jones <arthur.jones@qlogic.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 10 10月, 2007 3 次提交
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由 Ralph Campbell 提交于
The link state event calls were being generated when the SM told the SMA to change link states. This works for IB_EVENT_PORT_ACTIVE but not if the link goes down and stays down. The fix is to generate event calls from the interrupt handler when the HW link state changes. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Arthur Jones 提交于
ipath_poll() suffered from a couple subtle bugs. Under the right conditions we could leave recv interrupts enabled on an ipath user context on close, thereby taking potentially unwanted interrupts on the next open -- this is fixed by unconditionally turning off recv interrupts on close. Also, we now use counters rather than set/clear bits which allows us to make sure we catch all interrupts at the cost of changing the semantics slightly (it's now give me all events since the last time I called poll() rather than give me all events since I called _this_ poll routine). We also added some memory barriers which may help ensure we get all notifications in a timely manner. Signed-off-by: NArthur Jones <arthur.jones@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
Different processors have different ordering restrictions for write combining. By taking advantage of this, we can eliminate some write barriers when writing to the send buffers. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 31 7月, 2007 2 次提交
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由 Dave Olson 提交于
On some system hardware, we are seeing moderately common cases of the chip errormask register being overwritten due to a chip bug in iba6120 that is triggered by a vendor-specific PCIe broadcast message. This patch merely checks periodically, and corrects it if needed (the overwrite can cause us to not get error and hardware error interrupts). Also, make dd->ipath_errormask the one, true canonical source for kr_errormask, and remove references to ipath_ignorederrs as it is currently unused. Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NJohn Gregor <john.gregor@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Dave Olson 提交于
There was confused use of INFINIPATH_S_PIOBUFAVAILUPD (value) and IPATH_S_PIOBUFAVAILUPD (bit position). Also, some callers of ipath_cancel_sends() need kr_sendctrl restored, and some want to do it later. Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 18 7月, 2007 2 次提交
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由 Roland Dreier 提交于
It has no callers and is completely dead code. Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Roland Dreier 提交于
Make some functions that are only used in a single .c file static. In addition to being a cleanup, this shrinks the generated code. On x86_64: add/remove: 1/3 grow/shrink: 2/1 up/down: 4777/-4956 (-179) function old new delta handle_errors - 3994 +3994 __verbs_timer 42 710 +668 ipath_do_ruc_send 2131 2246 +115 ipath_no_bufs_available 136 - -136 ipath_disarm_senderrbufs 639 - -639 ipath_ib_timer 658 - -658 ipath_intr 5878 2355 -3523 Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 10 7月, 2007 9 次提交
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由 Arthur Jones 提交于
All too often, interrupts do not get enabled for our card due to BIOS misconfiguration and other issues. This patch checks for that condition on startup and warns the user. This patch is based on work (check LID availability) by Robert Walsh. Signed-off-by: NArthur Jones <arthur.jones@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
Clean up some code by removing support for some older pre-production HTX InfiniPath cards. Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
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由 Dave Olson 提交于
We are more careful to be sure that we don't lose information about changes that occurred while we were in freeze mode, when the chip will not notify us, and try to avoid false error interrupts while doing cleanup. Put all of this logic in a new function ipath_clear_freeze(). Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 John Gregor 提交于
Now that it's June, it's about time to update the copyright notices of files that have changed. Signed-off-by: NJohn Gregor <john.gregor@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Robert Walsh 提交于
Fix ipath_poll and enhance it so we can poll for urgent packets or regular packets and receive notifications of when a header queue overflows. Signed-off-by: NRobert Walsh <robert.walsh@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Dave Olson 提交于
This centralizes the use of the abort functionality, removes the unneeded buffer cancel (abort does the same thing), sets up to ignore launch errors after abort, same as cancel. We need abort on exit from freeze mode to avoid having buffers stuck in the busy state, if a user process happened to complete the send while we were in freeze mode doing the recovery. Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Michael Albaugh 提交于
We currently track various errors, now we enhance that capability by logging some of them to EEPROM. We also now log a cumulative "active" time defined by traffic though the InfiniPath HCA beyond the normal SM traffic. Signed-off-by: NMichael Albaugh <michael.albaugh@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Michael Albaugh 提交于
The new LED blinking interface adds more contention for the unprotected GPIO pins that were already shared, though not commonly at the same time. We add locks to the accesses to these pins so that Read-Modify-Write is now safe. Some of these locks are added at interrupt context, so we shadow the registers which drive and inspect these pins to avoid the mmio read/writes. This mitigates the effects of the locks and hastens us through the interrupt. Add locking and always use shadows for registers controlling GPIO pins (ExtCtrl and GPIOout). The use of shadows implies doing less I/O, which can make I2C operation too fast on some platforms. An explicit udelay(1) in SCL manipulation fixes that. Signed-off-by: NMichael Albaugh <michael.albaugh@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Michael Albaugh 提交于
When we want to find an InfiniPath HCA in a rack of nodes, it is often expeditious to blink the status LEDs via a userspace /sys file. A write-only led_override "file" is published per device. Writes to this file are interpreted as (string form) numbers, and the resulting value sent to ipath_set_led_override(). The upper eight bits are interpretted as a 4.4 fixed-point "frequency in Hertz", and the bottom two 4-bit values are alternately (D0..3, then D4..7) used by the board-specific LED-setting function to override the normal state. Signed-off-by: NMichael Albaugh <michael.albaugh@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 15 5月, 2007 1 次提交
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由 Arthur Jones 提交于
Once upon a time, GPIO interrupts were rare. But then a chip bug in the waldo series forced the use of a GPIO interrupt to signal packet reception. This greatly increased the frequency of GPIO interrupts which have the gpio_mask bits set on the waldo chips. Other bits in the gpio_status register are used for I2C clock and data lines, these bits are usually on. An "unlikely" annotation leftover from the old days was improperly applied to these bits, and an unnecessary chip mmio read was being accessed in the interrupt fast path on waldo. Remove the stagnant unlikely annotation in the interrupt handler and keep a shadow copy of the gpio_mask register to avoid the slow mmio read when testing for interruptable GPIO bits. Signed-off-by: NArthur Jones <arthur.jones@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 19 4月, 2007 4 次提交
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由 Bryan O'Sullivan 提交于
Mostly cleanup. Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Bryan O'Sullivan 提交于
Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Bryan O'Sullivan 提交于
Some types of packet errors are moderately common with longer IB cables and large clusters, and are not reported with prints by other IB HCA drivers. This suppresses those messages unless the new __IPATH_ERRPKTDBG bit is set in ipath_debug. Reporting of temporarily disabled frequent error interrupts was also made clearer We also distinguish between chip errors, and bad packets sent or received in the wording of the messages. Signed-off-by: NDave Olson <dave.olson@qlogic.com> Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Ralph Campbell 提交于
A recent change was made to allocate memory for a port after CPU affinity is set. That change didn't account for subports and was trying to allocate memory for the port twice. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 13 2月, 2007 1 次提交
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由 Arjan van de Ven 提交于
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 11月, 2006 1 次提交
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由 Bryan O'Sullivan 提交于
Eric's changes to the htirq infrastructure require corresponding modifications to the ipath HT driver code so that interrupts are still delivered properly. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Roland Dreier <rdreier@cisco.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 10月, 2006 1 次提交
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由 Robert Walsh 提交于
Don't attempt to set up the diagpkt device in the module init code. Instead, wait until a piece of hardware is initialized. Fixes a problem when loading the ib_ipath module when no InfiniPath hardware is present: modprobe would go into the D state and stay there. Signed-off-by: NRobert Walsh <robert.walsh@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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- 05 10月, 2006 1 次提交
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由 David Howells 提交于
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: NDavid Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
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- 29 9月, 2006 1 次提交
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由 Bryan O'Sullivan 提交于
We can sometimes trigger parity errors due to processor speculative reads to our write-combined memory (mostly seen on Woodcrest). Add a stats counter for these. Factored out the sendbuffererror buffer cancellation code so it can be used in the new handling; suppress likely subsequent error messages if within two jiffies of the cancellation. Also restore 2 dropped TXE lines on hwe_bitsextant noticed while debugging. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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