- 25 3月, 2009 27 次提交
-
-
由 Mark Lord 提交于
Add IRQ coalescing to sata_mv (off by default). This feature can reduce total interrupt overhead for RAID setups in some situations, by deferring the interrupt signal until one or both of: a) a specified io_count (completed SATA commands) is achieved, or b) a specified time interval elapses after an IO completion. For now, module parameters are used to set the irq_coalescing_io_count and irq_coalescing_usecs (timeout) globally. These may eventually be supplemented with sysfs attributes, so that thresholds can be set on-the-fly and on a per-chip (or even per-host_controller) basis. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Various cosmetic changes in preparation for the IRQ coalescing feature. Note that the various MV_IRQ_COAL_* definitions are restored/renamed in the folloup patch which adds IRQ coalescing to the driver. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Florian Fainelli 提交于
platform_get_irq() can return -ENXIO, but since 'irq' is an unsigned int, it does not show when the IRQ resource wasn't found. Make irq an int so that we can use a single variable to test the platform_get_irq() return value. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Signed-off-by: NPhil Sutter <n0-1@freewrt.org> Signed-off-by: NFlorian Fainelli <florian@openwrt.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Erik Inge Bolsø 提交于
According to Alan: >and yes the EFAR does UDMA66. mwdma: >Yep - wrong comment. The EFAR is a sort of clone of the PIIX and I >copied the comment while EFAR don't appear to have copied the >limitation Signed-off-by: NErik Inge Bolsø <knan-lkml@anduin.net> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Erik Inge Bolsø 提交于
As noted by Alan: >Your suspicions are correct here btw - the device can only do MWDMA1 and >MWDMA2 (much like some PIIX devices) Signed-off-by: NErik Inge Bolsø <knan-lkml@anduin.net> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Erik Inge Bolsø 提交于
No functional changes in this patch. Signed-off-by: NErik Inge Bolsø <knan-lkml@anduin.net> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Erik Inge Bolsø 提交于
Signed-off-by: NErik Inge Bolsø <knan-lkml@anduin.net> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Maciej Rutecki 提交于
Blacklist HP Compaq 6720s so that it doesn't play a "spin down, spin up, spin down" ping-pong with the hard disk during system power off. Signed-off-by: NMaciej Rutecki <maciej.rutecki@gmail.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
This is initially needed to work around NCQ errata, whereby the READ_LOG_EXT command sometimes fails when issued in the traditional (sff) fashion. Portions of this code will likely be reused for implementation of the target mode feature later on. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
This is necessary for use with the upcoming "mv_qc_issue_fis()" patch, but is being added separately here for easier code review. When using command issue via the "mv_qc_issue_fis()" mechanism, the initial ATA_BUSY bit does not show in the ATA status (shadow) register. This can confuse libata! So here we add a hook to fake ATA_BUSY for that situation, until the first time a BUSY, DRQ, or ERR bit is seen. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
so that it doesn't miss any protocols. Handle future cases where a qc is specially marked for polled issue or where a particular chip version prefers interrupts over polling for PIO. This mimics the polling decision logic from ata_sff_qc_issue(). Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
This also gets rid of any need for mv_mode_filter(). Using basic DMA on GEN_IIE requires setting an undocumented bit in an undocumented register. For safety, we clear that bit again when switching back to EDMA mode. To avoid a performance penalty when switching modes, we cache the register in port_priv, as already done for other regs. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Maintain a local (mv_port_priv) cache of frequently accessed registers, to avoid having to re-read them (very slow) on every transistion between EDMA and non-EDMA modes. This speeds up things like flushing the drive write cache, and anything using basic DMA transfers. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Tejun Heo 提交于
There's no need to turn off intx explicitly on msi enable. This is automatically handled by pci. Drop it. This might be needed on machines if the BIOS turns intx off during boot. However, there's no evidence of such behavior for ahci and the only such case seems to be ICH5 PATA according to ata_piix. Also, given the way ahci operates, it's highly unlikely BIOS ever disables IRQ for the controller. However, as this change has slight possibility of introducing failure, please schedule it for #upstream. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Phil Sutter 提交于
I'm not quite sure what freezing and thawing is used for. Tests showed that the port is being frozen at initialisation state and thawed right afterwards, then the functions were not called anymore. Dropping the complete custom code for handling the frozen state seems to work at least for a standard use case including mounting a partition, copying some files in it (in parallel) and finally removing them and unmounting the partition. Signed-off-by: NPhil Sutter <n0-1@freewrt.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Phil Sutter 提交于
The biggest difference between rb532_pata_data_xfer() and ata_sff_data_xfer32() is the call to ata_sff_pause() at the end of rb532_pata_data_xfer() which I suppose to be unnecessary since it works without. I've also tested using ata_sff_data_xfer() as replacement, but since we know that the driver supports 32bit IO, using the optimised version should be safe. Signed-off-by: NPhil Sutter <n0-1@freewrt.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Phil Sutter 提交于
The only difference between rb532_pata_exec_command() and ata_sff_exec_command() is added debugging output, so it can be dropped and the standard op used instead. Signed-off-by: NPhil Sutter <n0-1@freewrt.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Phil Sutter 提交于
Since the delay used internally is just the same as ata_sff_pause() uses, rb532_pata_finish_io() does exactly the same as ata_sff_pause() and thus can be replaced by the later one. Signed-off-by: NPhil Sutter <n0-1@freewrt.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Remove redundant code left over from the earlier patch 04/07. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Try and avoid unnecessary reconfiguration of the EDMA config register on every single non-EDMA I/O operation, by moving the call to mv_edma_cfg() into mv_stop_edma(). It must then also be invoked from mv_hardreset() and from mv_port_start(). Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Add ATAPI support to sata_mv, using sff DMA for GEN_II chipsets, and plain old PIO for GEN_IIE. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Fix mv_fill_sg() to zero out the reserved word (required for ATAPI), and to include a memory barrier. This may also help with problems reported by Jens on the PPC platform. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Update the logic in ata_qc_from_tag() to match that used in similar places elsewhere in libata. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Rearrange logic in mv_qc_issue() to handle protocols other than ATA_PROT_DMA, ATA_PROT_NCQ, and ATA_PROT_PIO. This is in preparation for later enabling ATAPI support. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Rearrange mv_start_dma() and friends, in preparation for adding non-EDMA DMA modes, and non-EDMA interrupts, to the driver. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
由 Mark Lord 提交于
Clean up the chipset GENeration FLAGS, and rename them for consistency with other uses of GEN_XX within sata_mv. Signed-off-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
-
- 24 3月, 2009 6 次提交
-
-
由 Linus Torvalds 提交于
-
由 Kyle McMartin 提交于
With a sufficiently new compiler and binutils, code which wasn't previously generating .eh_frame sections has begun to. Certain architectures (powerpc, in this case) may generate unexpected relocation formats in response to this, preventing modules from loading. While the new relocation types should probably be handled, revert to the previous behaviour with regards to generation of .eh_frame sections. (This was reported against Fedora, which appears to be the only distro doing any building against gcc-4.4 at present: RH bz#486545.) Signed-off-by: NKyle McMartin <kyle@redhat.com> Acked-by: NRoland McGrath <roland@redhat.com> Cc: Alexandre Oliva <aoliva@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Jody McIntyre 提交于
Revert the change to the orphan dates of Windows 95, DOS, compression. Add a new orphan date for OS/2. Signed-off-by: NJody McIntyre <scjody@sun.com> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits) ucc_geth: Fix oops when using fixed-link support dm9000: locking bugfix net: update dnet.c for bus_id removal dnet: DNET should depend on HAS_IOMEM dca: add missing copyright/license headers nl80211: Check that function pointer != NULL before using it sungem: missing net_device_ops be2net: fix to restore vlan ids into BE2 during a IF DOWN->UP cycle be2net: replenish when posting to rx-queue is starved in out of mem conditions bas_gigaset: correctly allocate USB interrupt transfer buffer smsc911x: reset last known duplex and carrier on open sh_eth: Fix mistake of the address of SH7763 sh_eth: Change handling of IRQ netns: oops in ip[6]_frag_reasm incrementing stats net: kfree(napi->skb) => kfree_skb net: fix sctp breakage ipv6: fix display of local and remote sit endpoints net: Document /proc/sys/net/core/netdev_budget tulip: fix crash on iface up with shirq debug virtio_net: Make virtio_net support carrier detection ...
-
git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Fix crash with /proc/iomem sparc64: Reschedule KGDB capture to a software interrupt. sbus: Auto-load openprom module when device opened.
-
由 Miklos Szeredi 提交于
This patch fixes bug #12208: Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12208 Subject : uml is very slow on 2.6.28 host This turned out to be not a scheduler regression, but an already existing problem in ptrace being triggered by subtle scheduler changes. The problem is this: - task A is ptracing task B - task B stops on a trace event - task A is woken up and preempts task B - task A calls ptrace on task B, which does ptrace_check_attach() - this calls wait_task_inactive(), which sees that task B is still on the runq - task A goes to sleep for a jiffy - ... Since UML does lots of the above sequences, those jiffies quickly add up to make it slow as hell. This patch solves this by not rescheduling in read_unlock() after ptrace_stop() has woken up the tracer. Thanks to Oleg Nesterov and Ingo Molnar for the feedback. Signed-off-by: NMiklos Szeredi <mszeredi@suse.cz> CC: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 23 3月, 2009 7 次提交
-
-
git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc: powerpc/mm: Fix Respect _PAGE_COHERENT on classic ppc32 SW TLB load machines
-
由 Kumar Gala 提交于
Grant picked up the wrong version of "Respect _PAGE_COHERENT on classic ppc32 SW" (commit a4bd6a93) It was missing the code to actually deal with the fixup of _PAGE_COHERENT based on the CPU feature. Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
-
由 Anton Vorontsov 提交于
commit b1c4a9dd ("ucc_geth: Change uec phy id to the same format as gianfar's") introduced a regression in the ucc_geth driver that causes this oops when fixed-link is used: Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xc0151270 Oops: Kernel access of bad area, sig: 11 [#1] TMCUTU NIP: c0151270 LR: c0151270 CTR: c0017760 REGS: cf81fa60 TRAP: 0300 Not tainted (2.6.29-rc8) MSR: 00009032 <EE,ME,IR,DR> CR: 24024042 XER: 20000000 DAR: 00000000, DSISR: 20000000 TASK = cf81cba0[1] 'swapper' THREAD: cf81e000 GPR00: c0151270 cf81fb10 cf81cba0 00000000 c0272e20 c025f354 00001e80 cf86b08c GPR08: d1068200 cffffb74 06000000 d106c200 42024042 10085148 0fffd000 0ffc81a0 GPR16: 00000001 00000001 00000000 007ffeb0 00000000 0000c000 cf83f36c cf83f000 GPR24: 00000030 cf83f360 cf81fb20 00000000 d106c200 20000000 00001e80 cf83f360 NIP [c0151270] ucc_geth_open+0x330/0x1efc LR [c0151270] ucc_geth_open+0x330/0x1efc Call Trace: [cf81fb10] [c0151270] ucc_geth_open+0x330/0x1efc (unreliable) [cf81fba0] [c0187638] dev_open+0xbc/0x12c [cf81fbc0] [c0187e38] dev_change_flags+0x8c/0x1b0 This patch fixes the issue by removing offending (and somewhat duplicate) code from init_phy() routine, and changes _probe() function to use uec_mdio_bus_name(). Also, since we fully construct phy_bus_id in the _probe() routine, we no longer need ->phy_address and ->mdio_bus fields in ucc_geth_info structure. I wish the patch would be a bit shorter, but it seems like the only way to fix the issue in a sane way. Luckily, the patch has been tested with real PHYs and fixed-link, so no further regressions expected. Reported-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com> Tested-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David Brownell 提交于
This fixes a locking bug in the dm9000 driver. It calls request_irq() without setting IRQF_DISABLED ... which is correct for handlers that support IRQ sharing, since that behavior is not guaranteed for shared IRQs. However, its IRQ handler then wrongly assumes that IRQs are blocked. So the fix just uses the right spinlock primitives in the IRQ handler. NOTE: this is a classic example of the type of bug which lockdep currently masks by forcibly setting IRQF_DISABLED on IRQ handlers that did not request that flag. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes: kconfig: improve seed in randconfig kconfig: fix randconfig for choice blocks
-
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu由 Linus Torvalds 提交于
* 'fix-includes' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: merge the non-MMU and MMU versions of siginfo.h m68k: use the MMU version of unistd.h for all m68k platforms m68k: merge the non-MMU and MMU versions of signal.h m68k: merge the non-MMU and MMU versions of ptrace.h m68k: use MMU version of setup.h for both MMU and non-MMU m68k: merge the non-MMU and MMU versions of sigcontext.h m68k: merge the non-MMU and MMU versions of swab.h m68k: merge the non-MMU and MMU versions of param.h
-