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Roland Dreier 0e6e741621 IB/mlx4: Handle new FW requirement for send request prefetching 
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>
2007-06-18 08:13:48 -07:00
..
acorn
acpi Pull osi-now into release branch 2007-06-02 01:02:09 -04:00
amba
ata libata: limit post SRST nsect/lbal wait to ~100ms 2007-06-11 00:52:53 -04:00
atm [ATM]: Fix warning. 2007-06-03 18:08:44 -07:00
auxdisplay cfag12864bfb: Use sys_ instead of cfb_ framebuffer accessors 2007-06-01 08:18:28 -07:00
base firmware: remove orphaned Email 2007-06-08 12:41:08 -07:00
block loop: preallocate eight loop devices 2007-06-08 17:23:32 -07:00
bluetooth [Bluetooth] Always send HCI_Reset for Broadcom devices 2007-05-24 14:26:15 +02:00
cdrom potential parse error in ifdef part 3 2007-06-08 17:23:33 -07:00
char Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart 2007-06-11 11:39:05 -07:00
clocksource
connector
cpufreq Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
crypto [CRYPTO] geode: Fix in-place operations and set key 2007-05-24 21:23:24 +10:00
dio
dma [S390] Kconfig: unwanted menus for s390. 2007-05-10 15:46:07 +02:00
edac [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
eisa
fc4
firewire firewire: Change struct fw_cdev_iso_packet to not use bitfields. 2007-05-31 21:40:15 +02:00
firmware
hid USB HID: hiddev - fix race between hiddev_send_event() and hiddev_release() 2007-05-10 08:45:56 +02:00
hwmon hwmon/applesmc: Handle name file creation error and deletion 2007-05-27 22:17:43 +02:00
i2c [ARM] 4403/1: Make the PXA-I2C driver work with lockdep validator 2007-05-26 10:09:39 +01:00
ide ide: Add the MCP73/77 support to PATA driver 2007-06-08 15:14:32 +02:00
ieee1394 ieee1394: sbp2: offer SAM-conforming target port ID in sysfs 2007-05-31 21:40:13 +02:00
infiniband IB/mlx4: Handle new FW requirement for send request prefetching 2007-06-18 08:13:48 -07:00
input Merge master.kernel.org:/home/rmk/linux-2.6-arm 2007-06-07 17:02:29 -07:00
isdn isdn/diva: fix section mismatch 2007-06-08 17:23:33 -07:00
kvm kvm: fix section mismatch warning in kvm-intel.o 2007-06-01 08:18:30 -07:00
leds [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
macintosh [POWERPC] Don't allow PMAC_APM_EMU for 64-bit 2007-06-02 21:01:56 +10:00
mca mca: add integrated device bus matching 2007-05-09 12:30:49 -07:00
md md: fix bug with linear hot-add and elsewhere 2007-05-23 20:14:14 -07:00
media V4L/DVB (5751): Ivtv: fix ia64 printk format warnings. 2007-06-08 08:54:41 -03:00
message Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2007-05-29 13:39:52 -07:00
mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2007-06-04 13:27:33 -07:00
misc Pull now into release branch 2007-06-02 00:48:48 -04:00
mmc mmc: don't call switch on old cards 2007-06-07 09:25:58 +02:00
mtd Merge git://git.infradead.org/mtd-2.6 2007-06-04 17:54:09 -07:00
net IB/mlx4: Handle new FW requirement for send request prefetching 2007-06-18 08:13:48 -07:00
nubus
oprofile Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
parisc
parport parport_pc needs dma-mapping.h 2007-05-16 21:19:15 -07:00
pci msi: mask the msix vector before we unmap it 2007-06-01 08:18:27 -07:00
pcmcia at91: fix enable/disable_irq_wake symmetry in pcmcia driver 2007-05-31 07:58:13 -07:00
pnp [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
ps3
rapidio
rtc RTC: use fallback IRQ if PNP tables don't provide one 2007-06-01 08:18:29 -07:00
s390 [S390] cio: deregister ccw device when pgid disband failed 2007-05-31 17:38:14 +02:00
sbus [SPARC]: Missing #include <linux/mm.h> in drivers/sbus/char/flash.c 2007-05-31 01:52:53 -07:00
scsi Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2007-06-04 13:31:39 -07:00
serial [ARM] Fix 4417/1: Serial: Fix AMBA drivers locking 2007-06-05 19:39:49 +01:00
sh
sn
spi SPI dynamic busid generation bugfix 2007-06-04 13:25:09 -07:00
tc potential parse error in ifdef part 3 2007-06-08 17:23:33 -07:00
telephony [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
usb OHCI: Fix machine check in ohci_hub_status_data 2007-06-08 16:24:31 -07:00
video [VIDEO] sunxvr500fb: Fix pseudo_palette array size 2007-06-05 13:15:26 -07:00
w1 [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
zorro
Kconfig
Makefile Merge branch 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2007-05-10 13:30:08 -07:00