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* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2007-04-25
|\ | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [PARPORT] SUNBPP: Fix OOPS when debugging is enabled. [SPARC] openprom: Switch to ref counting PCI API
| * [PARPORT] SUNBPP: Fix OOPS when debugging is enabled.David S. Miller2007-04-24
| | | | | | | | | | | | | | The debugging code would dereference __iomem pointers instead of going through sbus_{read,write}{b,w,l}(). Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC] openprom: Switch to ref counting PCI APIAlan Cox2007-04-24
| | | | | | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | packet: fix error handlingAndrew Morton2007-04-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The packet driver is assuming (reasonably) that the (undocumented) request.errors is an errno. But it is in fact some mysterious bitfield. When things go wrong we return weird positive numbers to the VFS as pointers and it goes oops. Thanks to William Heimbigner for reporting and diagnosis. (It doesn't oops, but this driver still doesn't work for William) Cc: William Heimbigner <icxcnika@mar.tar.cc> Cc: Peter Osterlund <petero2@telia.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2007-04-24
|\ \ | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [BNX2]: Fix occasional NETDEV WATCHDOG on 5709. [IPV6]: Disallow RH0 by default. [XFRM]: beet: fix pseudo header length value [TCP]: Congestion control initialization.
| * | [BNX2]: Fix occasional NETDEV WATCHDOG on 5709.Michael Chan2007-04-24
| |/ | | | | | | | | | | | | | | | | Tweak a register setting to prevent the tx mailbox from halting. Update version to 1.5.8. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2007-04-24
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: drivers/net/hamradio/baycom_ser_fdx build fix usb-net/pegasus: fix pegasus carrier detection sis900: Allocate rx replacement buffer before rx operation [netdrvr] depca: handle platform_device_add() failure
| * | drivers/net/hamradio/baycom_ser_fdx build fixAndrew Morton2007-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sparc64: drivers/net/hamradio/baycom_ser_fdx.c: In function `ser12_open': drivers/net/hamradio/baycom_ser_fdx.c:417: error: `NR_IRQS' undeclared (first us e in this function) drivers/net/hamradio/baycom_ser_fdx.c:417: error: (Each undeclared identifier is reported only once drivers/net/hamradio/baycom_ser_fdx.c:417: error: for each function it appears i n.) Cc: Folkert van Heusden <folkert@vanheusden.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | usb-net/pegasus: fix pegasus carrier detectionDan Williams2007-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Broken by 4a1728a28a193aa388900714bbb1f375e08a6d8e which switched the return semantics of read_mii_word() but didn't fix usage of read_mii_word() to conform to the new semantics. Setting carrier to off based on the NO_CARRIER flag is also incorrect as that flag only triggers on TX failure and therefore isn't correct when no frames are being transmitted. Since there is already a 2*HZ MII carrier check going on, defer to that. Add a TRUST_LINK_STATUS feature flag for adapters where the LINK_STATUS flag is actually correct, and use that rather than the NO_CARRIER flag. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | sis900: Allocate rx replacement buffer before rx operationNeil Horman2007-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sis900 driver appears to have a bug in which the receive routine passes the skbuff holding the received frame to the network stack before refilling the buffer in the rx ring. If a new skbuff cannot be allocated, the driver simply leaves a hole in the rx ring, which causes the driver to stop receiving frames and become non-recoverable without an rmmod/insmod according to reporters. This patch reverses that order, attempting to allocate a replacement buffer first, and receiving the new frame only if one can be allocated. If no skbuff can be allocated, the current skbuf in the rx ring is recycled, dropping the current frame, but keeping the NIC operational. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | [netdrvr] depca: handle platform_device_add() failureAndrea Righi2007-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following patch fixes a kernel bug in depca_platform_probe(). We don't use a dynamic pointer for pldev->dev.platform_data, so it seems that the correct way to proceed if platform_device_add(pldev) fails is to explicitly set the pldev->dev.platform_data pointer to NULL, before calling the platform_device_put(pldev), or it will be kfree'ed by platform_device_release(). Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2007-04-24
|\ \ \ | |/ / |/| | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: Revert "adjust legacy IDE resource setting (v2)"
| * | Revert "adjust legacy IDE resource setting (v2)"Bartlomiej Zolnierkiewicz2007-04-23
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit ed8ccee0918ad063a4741c0656fda783e02df627. It causes hang on boot for some users and we don't yet know why: http://bugzilla.kernel.org/show_bug.cgi?id=7562 http://lkml.org/lkml/2007/4/20/404 http://lkml.org/lkml/2007/3/25/113 Just reverse it for 2.6.21-final, having broken X server is somehow better than unbootable system. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | 8250: fix possible deadlock between serial8250_handle_port() and ↵Jiri Kosina2007-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | serial8250_interrupt() Commit 40b36daa introduced possibility that serial8250_backup_timeout() -> serial8250_handle_port() locks port.lock without disabling irqs, thus allowing deadlock against interrupt handler (port.lock is acquired in serial8250_interrupt()). Spotted by lockdep. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Char: icom, mark __init as __devinitJiri Slaby2007-04-24
| | | | | | | | | | | | | | | | | | Two functions are called from __devinit context, but they are marked as __init. Fix this. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | hwmon/w83627ehf: Don't redefine REGION_OFFSETJean Delvare2007-04-24
| | | | | | | | | | | | | | | | | | | | On ia64, kernel headers define REGION_OFFSET so we can't use that. Reported by Andrew Morton. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: David Hubbard <david.c.hubbard@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | do not truncate irq number for icom adapterOlaf Hering2007-04-24
| | | | | | | | | | | | | | | | | | | | | | irq values are u32, not u8. Large irq numbers will be truncated, free_irq may free a different irq. Remove incorrectly sized struct member and use the one from pci_dev. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | acpi-thermal: fix mod_timer() intervalAndrew Morton2007-04-24
| | | | | | | | | | | | | | | | | | | | Use relative time, not absolute. Discovered by Jung-Ik (John) Lee <jilee@google.com>. Cc: Jung-Ik (John) Lee <jilee@google.com> Acked-by: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Fix spelling in drivers/video/KconfigMiguel Ojeda2007-04-24
| | | | | | | | | | | | | | Signed-off-by: Miguel Ojeda Sandonis <maxextreme@gmail.com> Cc: "Antonino A. Daplas" <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | paride drivers: initialize spinlocksAlexey Dobriyan2007-04-24
| | | | | | | | | | | | | | | | | | | | | | | | pcd_lock and pf_spin_lock are passed to blk_init_queue() which, seeing them as valid lock pointer, sets it as ->queue_lock. The problem is that pcd_lock and pf_spin_lock aren't initialized anywhere. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Char: mxser, fix TIOCMIWAITJiri Slaby2007-04-24
| | | | | | | | | | | | | | | | | | | | | | There was schedule() missing in the TIOCMIWAIT ioctl. Solve it by moving the code to the wait_event_interruptible. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Jan Yenya Kasprzak <kas@fi.muni.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Char: mxser_new, fix TIOCMIWAITJiri Slaby2007-04-24
| | | | | | | | | | | | | | | | | | | | | | There was schedule() missing in the TIOCMIWAIT ioctl. Solve it by moving the code to the wait_event_interruptible. Cc: Jan "Yenya" Kasprzak <kas@fi.muni.cz> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Char: mxser_new, fix recursive lockingJan Yenya Kasprzak2007-04-24
| | | | | | | | | | | | | | | | Signed-off-by: Jan "Yenya" Kasprzak <kas@fi.muni.cz> Acked-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Fix possible NULL pointer access in 8250 serial driverTaku Izumi2007-04-24
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I encountered the following kernel panic. The cause of this problem was NULL pointer access in check_modem_status() in 8250.c. I confirmed this problem is fixed by the attached patch, but I don't know this is the correct fix. sadc[4378]: NaT consumption 2216203124768 [1] Modules linked in: binfmt_misc dm_mirror dm_mod thermal processor fan container button sg e100 eepro100 mii ehci_hcd ohci_hcd Pid: 4378, CPU 0, comm: sadc psr : 00001210085a2010 ifs : 8000000000000289 ip : [<a000000100482071>] Not tainted ip is at check_modem_status+0xf1/0x360 Call Trace: [<a000000100013940>] show_stack+0x40/0xa0 [<a0000001000145a0>] show_regs+0x840/0x880 [<a0000001000368e0>] die+0x1c0/0x2c0 [<a000000100036a30>] die_if_kernel+0x50/0x80 [<a000000100037c40>] ia64_fault+0x11e0/0x1300 [<a00000010000bdc0>] ia64_leave_kernel+0x0/0x280 [<a000000100482070>] check_modem_status+0xf0/0x360 [<a000000100482300>] serial8250_get_mctrl+0x20/0xa0 [<a000000100478170>] uart_read_proc+0x250/0x860 [<a0000001001c16d0>] proc_file_read+0x1d0/0x4c0 [<a0000001001394b0>] vfs_read+0x1b0/0x300 [<a000000100139cd0>] sys_read+0x70/0xe0 [<a00000010000bc20>] ia64_ret_from_syscall+0x0/0x20 [<a000000000010620>] __kernel_syscall_via_break+0x0/0x20 Fix the possible NULL pointer access in check_modem_status() in 8250.c. The check_modem_status() would access 'info' member of uart_port structure, but it is not initialized before uart_open() is called. The check_modem_status() can be called through /proc/tty/driver/serial before uart_open() is called. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Taku Izumi <izumi2005@soft.fujitsu.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Add missing USRobotics Wireless Adapter (Model 5423) id into zd1211rwS.Çağlar Onur2007-04-23
| | | | | | | | | | USRobotics Wireless Adapter (Model 5423) works well with current zd1211rw driver also (i have tested 2.6.18, 2.6.20 and 2.6.21-rc7). It just needs its ID added to the list of devices. Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2007-04-23
|\ | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SUNHME]: Fix module unload. [SUNLANCE]: Fix module unload. [SUNQE]: Fix MAC address assignment. [SBUS] vfc_dev.c: kzalloc
| * [SUNHME]: Fix module unload.Marcel van Nies2007-04-21
| | | | | | | | | | Signed-off-by: Marcel van Nies <morcles@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SUNLANCE]: Fix module unload.Marcel van Nies2007-04-21
| | | | | | | | | | Signed-off-by: Marcel van Nies <morcles@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SUNQE]: Fix MAC address assignment.Marcel van Nies2007-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | The MAC address assignment at module loading is simply forgotten. The bug at module unloading is caused by an incorrect call. The bug at module unloading does not only happen for sunqe, sunlance and sunhme (sbus) suffer from it too. I've tested this on my SS20. Signed-off-by: Marcel van Nies <morcles@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SBUS] vfc_dev.c: kzallocvignesh babu2007-04-21
| | | | | | | | | | | | | | Replacing kmalloc/memset combination with kzalloc. Signed-off-by: vignesh babu <vignesh.babu@wipro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2007-04-23
|\ \ | |/ |/| | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [PPP]: Fix skbuff.c:BUG due incorrect logic in process_input_packet()
| * [PPP]: Fix skbuff.c:BUG due incorrect logic in process_input_packet()Paul Mackerras2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: Paul Mackerras <paulus@samba.org> This fixes: Subject: kernel BUG at net/core/skbuff.c in linux-2.6.21-rc6 process_input_packet() treats the case where the first byte is 0xff (PPP_ALLSTATIONS) but the second byte is 0x03 (PPP_UI) as indicating a packet with a PPP protocol number of 0xff. Arguably that's wrong since PPP protocol 0xff is reserved, and the RFC does envision the possibility of receiving frames where the control field has values other than 0x03. Signed-off-by: David S. Miller <davem@davemloft.net>
* | ide/Kconfig: add missing range check for IDE_MAX_HWIFSBartlomiej Zolnierkiewicz2007-04-20
| | | | | | | | | | | | | | ide_hwif_to_major[] has only 10 entries as there are 10 major numbers reserved for IDE (if somebody needs more it shouldn't be hard to fix). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | hpt366: fix kernel oops with HPT302NSergei Shtylyov2007-04-20
| | | | | | | | | | | | | | | | | | | | The driver crashes the kernel on HPT302N chips due to the missing initializer for 'hpt302n.settings' having been unfortunately overlooked so far. :-< Much thanks to Mike Mattie for pin-pointing the reason of crash. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | ide/pci/delkin_cb.c: add new PCI IDMark Lord2007-04-20
| | | | | | | | | | | | | | Add PCI ID for a newer variant of cardbus CF/IDE adapter card. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | Revert "e1000: fix NAPI performance on 4-port adapters"Linus Torvalds2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 60cba200f11b6f90f35634c5cd608773ae3721b7. It's been linked to lockups of the e1000 hardware, see for example https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=229603 but it's likely that the commit itself is not really introducing the bug, but just allowing an unrelated problem to rear its ugly head (ie one current working theory is that the code exposes us to a hardware race condition by decreasing the amount of time we spend in each NAPI poll cycle). We'll revert it until root cause is known. Intel has a repeatable reproduction on two different machines and bus traces of the hardware doing something bad. Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: David S. Miller <davem@davemloft.net> Cc: Greg KH <gregkh@suse.de> Cc: Dave Jones <davej@redhat.com> Cc: Auke Kok <auke-jan.h.kok@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2007-04-19
|\ \ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: pata_sis: Fix oops on boot
| * | pata_sis: Fix oops on bootAlan Cox2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A small number of SiS setups require special handling (not many judging by how long this dumb bug survived). A couple of Fedora 7 devel testers hit an Oops on pata_sis loading which is caused by terminal confusion between chipset as 'the chipset we have found' and chipset as 'array iterator' Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | sky2: version 1.14Stephen Hemminger2007-04-19
| | | | | | | | | | | | | | | Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | sky2: no jumbo on Yukon FEStephen Hemminger2007-04-19
| | | | | | | | | | | | | | | | | | | | | The Yukon FE (100mbit only) chips do not support large packets. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | sky2: EC-U performance and jumbo supportStephen Hemminger2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Yukon EC Ultra chips have transmit settings for store and forward and PCI buffering. By setting these appropriately, normal performance goes from 750Mbytes/sec to 940Mbytes/sec (non-jumbo). It is also possible to do Jumbo mode, but it means turning off TSO and checksum offload so the performance gets worse. There isn't enough buffering for checksum offload to work. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | sky2: disable ASF on all chip typesStephen Hemminger2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | Need to make sure and disable ASF on all chip types. Otherwise, there may be random reboots. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | sky2: handle descriptor errorsStephen Hemminger2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | There should never be descriptor error unless hardware or driver is buggy. But if an error occurs, print useful information, clear irq, and recover. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | sky2: disable support for 88E8056Stephen Hemminger2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This device is having all sorts of problems that lead to data corruption and system instability. It gets receive status and data out of order, it generates descriptor and TSO errors, etc. Until the problems are resolved, it should not be used by anyone who cares about there system. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | gianfar needs crc32 lib dependencyDave Jiang2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Gianfar needs crc32 to be selected to compile. Signed-off-by: Dave Jiang <djiang@mvista.com> -- drivers/net/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) -- Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | spidernet: Fix problem sending IP fragmentsLinas Vepstas2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The basic structure of "normal" UDP/IP/Ethernet frames (that actually work): - It starts with the Ethernet header (dest MAC, src MAC, etc.) - The next part is occupied by the IP header (version info, length of packet, id=0, fragment offset=0, checksum, from / to address, etc.) - Then comes the UDP header (src / dest port, length, checksum) - Actual payload - Ethernet checksum Now what's different for IP fragment: - The IP header has id set to some value (same for all fragments), offset is set appropriately (i.e. 0 for first fragment, following according to size of other fragments), size is the length of the frame. - UDP header is unchanged. I.e. length is according to full UDP datagram, not just the part within the actual frame! But this is only true within the first frame: all following frames don't have a valid UDP-header at all. The spidernet silicon seems to be quite intelligent: It's able to compute (IP / UDP / Ethernet) checksums on the fly and tests if frames are conforming to RFC -- at least conforming to RFC on complete frames. But IP fragments are different as explained above: I.e. for IP fragments containing part of a UDP datagram it sees incompatible length in the headers for IP and UDP in the first frame and, thus, skips this frame. But the content *is* correct for IP fragments. For all following frames it finds (most probably) no valid UDP header at all. But this *is* also correct for IP fragments. The Linux IP-stack seems to be clever in this point. It expects the spidernet to calculate the checksum (since the module claims to be able to do so) and marks the skb's for "normal" frames accordingly (ip_summed set to CHECKSUM_HW). But for the IP fragments it does not expect the driver to be capable to handle the frames appropriately. Thus all checksums are allready computed. This is also flaged within the skb (ip_summed set to CHECKSUM_NONE). Unfortunately the spidernet driver ignores that hints. It tries to send the IP fragments of UDP datagrams as normal UDP/IP frames. Since they have different structure the silicon detects them the be not "well-formed" and skips them. The following one-liner against 2.6.21-rc2 changes this behavior. If the IP-stack claims to have done the checksumming, the driver should not try to checksum (and analyze) the frame but send it as is. Signed-off-by: Norbert Eicker <n.eicker@fz-juelich.de> Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | cxgb3 - PHY interrupts and GPIO pins.Divy Le Ray2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | Remove assumption that PHY interrupts use GPIOs 3 and 5. Deal with PHY interrupts connected to any GPIO pins. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | cxgb3 - Fix low memory conditionsDivy Le Ray2007-04-19
| |/ |/| | | | | | | | | | | | | | | | | | | | | Reuse the incoming skb when a clientless abort req is recieved. The release of RDMA connections HW resources might be deferred in low memory situations. Ensure that no further activity is passed up to the RDMA driver for these connections. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | KVM: Fix off-by-one when writing to a nonpae guest pdeAvi Kivity2007-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Nonpae guest pdes are shadowed by two pae ptes, so we double the offset twice: once to account for the pte size difference, and once because we need to shadow pdes for a single guest pde. But when writing to the upper guest pde we also need to truncate the lower bits, otherwise the multiply shifts these bits into the pde index and causes an access to the wrong shadow pde. If we're at the end of the page (accessing the very last guest pde) we can even overflow into the next host page and oops. Signed-off-by: Avi Kivity <avi@qumranet.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2007-04-17
|\ \ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: IB/mthca: Fix data corruption after FMR unmap on Sinai
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