- 18 Jun, 2006 27 commits
-
-
Michael Chan authored
Add recovery logic when we suspect that the system is re-ordering MMIOs. Re-ordered MMIOs to the send mailbox can cause bogus tx completions and hit BUG_ON() in the tx completion path. tg3 already has logic to handle re-ordered MMIOs by flushing the MMIOs that must be strictly ordered (such as the send mailbox). Determining when to enable the flush is currently a manual process of adding known chipsets to a list. The new code replaces the BUG_ON() in the tx completion path with the call to tg3_tx_recover(). It will set the TG3_FLAG_MBOX_WRITE_REORDER flag and reset the chip later in the workqueue to recover and start flushing MMIOs to the mailbox. A message to report the problem will be printed. We will then decide whether or not to add the host bridge to the list of chipsets that do re-ordering. We may add some additional code later to print the host bridge's ID so that the user can report it more easily. The assumption that re-ordering can only happen on x86 systems is also removed. Signed-off-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
-
Michael Chan authored
Add PCI ID for BCM5786 which is a variant of 5787. Signed-off-by:
-
Samuel Ortiz authored
This patch gets rid of the old power management code and now uses the device model for the ali-ircc driver. Signed-off-by:
Samuel Ortiz <samuel@sortiz.org> Signed-off-by:
-
Christoph Hellwig authored
stir4200 uses a kernel thread for its TX/RX operations, and it is now converted to the kernel kthread API. Tested on an STIR4200 based dongle. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
-
Samuel Ortiz authored
The MosChip MCS7780 chipset is an IrDA USB bridge that doesn't conform with the IrDA-USB standard and thus needs its separate driver. Tested on an actual MCS7780 based dongle. Original implementation by Brian Pugh <bpugh@cs.pdx.edu> Signed-off-by:
-
David S. Miller authored
We only want to take receive RTT mesaurements for data bearing frames, here in the header prediction fast path for a pure-sender, we know that we have a pure-ACK and thus the checks in tcp_rcv_rtt_mesaure_ts() will not pass. Signed-off-by: -
Stephen Hemminger authored
Add basic netlink support to the Ethernet bridge. Including: * dump interfaces in bridges * monitor link status changes * change state of bridge port For some demo programs see: http://developer.osdl.org/shemminger/prototypes/brnl.tar.gz These are to allow building a daemon that does alternative implementations of Spanning Tree Protocol. Signed-off-by:
Stephen Hemminger <shemminger@osdl.org> Signed-off-by:
-
Stephen Hemminger authored
Return address in use, if some other kernel code has the SAP. Propogate out error codes from netfilter registration and unwind. Signed-off-by:
-
Stephen Hemminger authored
Small optimizations of bridge forwarding path. Signed-off-by:
-
Stephen Hemminger authored
Allow mulitcast reception of datagrams (similar to UDP). All sockets bound to the same SAP receive a clone. Signed-off-by:
-
Stephen Hemminger authored
It is legal for an application to bind to a SAP that is also being used by the kernel. This happens if the bridge module binds to the STP SAP, and the user wants to have a daemon for STP as well. It is possible to have kernel doing STP on one bridge, but let application do RSTP on another bridge. Signed-off-by:
-
Stephen Hemminger authored
The receive hander pointer might be modified during network changes of protocol. So use rcu_dereference (only matters on alpha). Signed-off-by:
-
Stephen Hemminger authored
LLC receive is broken for SOCK_DGRAM. If an application does recv() on a datagram socket and there is no data present, don't return "not connected". Instead, just do normal datagram semantics. Signed-off-by:
-
Stephen Hemminger authored
Use more cache efficient Ethernet address manipulation functions in etherdevice.h. Signed-off-by: -
Andrew Morton authored
for_each_cpu() is going away (and is gone in -mm). Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Chris Leech <christopher.leech@intel.com> Signed-off-by:
-
Chris Leech authored
Locks down user pages and sets up for DMA in tcp_recvmsg, then calls dma_async_try_early_copy in tcp_v4_do_rcv Signed-off-by:
-
Chris Leech authored
Any socket recv of less than this ammount will not be offloaded Signed-off-by:
-
Chris Leech authored
Add an extra argument to sk_eat_skb, and make it move early copied packets to the async_wait_queue instead of freeing them. Signed-off-by:
-
Chris Leech authored
Needed to be able to call tcp_cleanup_rbuf in tcp_input.c for I/OAT Signed-off-by:
-
Chris Leech authored
Adds an async_wait_queue and some additional fields to tcp_sock, and a dma_cookie_t to sk_buff. Signed-off-by:
-
Chris Leech authored
Provides for pinning user space pages in memory, copying to iovecs, and copying from sk_buffs including fragmented and chained sk_buffs. Signed-off-by:
-
Chris Leech authored
Attempts to allocate per-CPU DMA channels Signed-off-by:
-
David S. Miller authored
Signed-off-by: -
David S. Miller authored
For DMA_*_MASK defines. Signed-off-by: -
Chris Leech authored
Adds a new ioatdma driver Signed-off-by:
-
Chris Leech authored
Provides an API for offloading memory copies to DMA devices Signed-off-by:
-
Linus Torvalds authored
Being named "Crazed Snow-Weasel" instills a lot of confidence in this release, so I'm sure this will be one of the better ones.
-
- 17 Jun, 2006 8 commits
-
-
Arnd Bergmann authored
Reflect the fact that the Cell Broadband Engine supports 64k pages by adding the bit to the CPU features. Signed-off-by:
Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
-
Arnd Bergmann authored
The page size encoding passed to tlbie is incorrect for new-style large pages. This fixes it. This doesn't affect anything on older machines because mmu_psize_defs[psize].penc (the page size encoding) is 0 for 4k and 16M pages (the two are distinguished by a separate "is a large page" bit). Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
-
Oleg Nesterov authored
arm_timer() checks PF_EXITING to prevent BUG_ON(->exit_state) in run_posix_cpu_timers(). However, for some reason it does so only for CPUCLOCK_PERTHREAD case (which is imho wrong). Also, this check is not reliable, PF_EXITING could be set on another cpu without any locks/barriers just after the check, so it can't prevent from attaching the timer to the exiting task. The previous patch makes this check unneeded. Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by:
-
Oleg Nesterov authored
do_exit() clears ->it_##clock##_expires, but nothing prevents another cpu to attach the timer to exiting process after that. arm_timer() tries to protect against this race, but the check is racy. After exit_notify() does 'write_unlock_irq(&tasklist_lock)' and before do_exit() calls 'schedule() local timer interrupt can find tsk->exit_state != 0. If that state was EXIT_DEAD (or another cpu does sys_wait4) interrupted task has ->signal == NULL. At this moment exiting task has no pending cpu timers, they were cleanuped in __exit_signal()->posix_cpu_timers_exit{,_group}(), so we can just return from irq. John Stultz recently confirmed this bug, see http://marc.theaimsgroup.com/?l=linux-kernel&m=115015841413687Signed-off-by: -
Oleg Nesterov authored
If the local timer interrupt happens just after do_exit() sets PF_EXITING (and before it clears ->it_xxx_expires) run_posix_cpu_timers() will call check_process_timers() with tasklist_lock + ->siglock held and check_process_timers: t = tsk; do { .... do { t = next_thread(t); } while (unlikely(t->flags & PF_EXITING)); } while (t != tsk); the outer loop will never stop. Actually, the window is bigger. Another process can attach the timer after ->it_xxx_expires was cleared (see the next commit) and the 'if (PF_EXITING)' check in arm_timer() is racy (see the one after that). Signed-off-by: -
Stephen Hemminger authored
A couple of fixes that should prevent crashes when using netconsole and suspend/resume. First, netconsole poll routine shouldn't run unless the device is up; second, the NAPI poll should be disabled during suspend. This is only an issue on sky2, because it has to have one NAPI poll routine for both ports on dual port boards. Normal drivers use netif_rx_schedule_prep and that checks for netif_running. Signed-off-by:
-
Jens Axboe authored
If get_user_pages() returns less pages than what we asked for, we jump to out_unmap which will return ERR_PTR(ret). But ret can contain a positive number just smaller than local_nr_pages, so be sure to set it to -EFAULT always. Problem found and diagnosed by Damien Le Moal <damien@sdl.hitachi.co.jp> Signed-off-by:
Jens Axboe <axboe@suse.de> Signed-off-by:
-
Jens Axboe authored
Some time ago the cdrom open routine was changed so that we call the driver's open routine before checking to see if it is read only. However, if we discovered that a read write open was not possible and the open flags required a writable open, we just returned -EROFS without calling the driver's release routine. This seems to work for most cdrom drivers, but breaks the Powerpc iSeries virtual cdrom rather badly. This just inserts the release call in the error path to balance the call to "->open()" done by "open_for_data()". Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
-
- 14 Jun, 2006 2 commits
-
-
Jens Axboe authored
We don't clear the seek stat values in cfq_alloc_io_context(), and if ->seek_mean is unlucky enough to be set to -36 by chance, the first invocation of cfq_update_io_seektime() will oops with a divide by zero in do_div(). Just memset the entire cic instead of filling invididual values independently. Signed-off-by:
-
Kirill Korotaev authored
If flock_lock_file() failed to allocate flock with locks_alloc_lock() then "error = 0" is returned. Need to return some non-zero. Signed-off-by:
Pavel Emelianov <xemul@openvz.org> Signed-off-by:
Kirill Korotaev <dev@openvz.org> Signed-off-by:
-
- 13 Jun, 2006 3 commits
-
-
Stephen Hemminger authored
The resume bug was caused not by an early interrupt but because the idle timeout was not being stopped on suspend. Also disable hardware IRQ's on suspend. Will need to revisit this with hotplug? Signed-off-by:
-
Stephen Hemminger authored
The hardware should be fully shut off during suspend, and the base irq mask restored during resume. Signed-off-by:
-
Stephen Hemminger authored
If the poll routine detects no hardware available, it needs to dequeue it self from the network poll list. Linus didn't understand NAPI. Signed-off-by:
-
