- 19 Apr, 2007 18 commits
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Mark Debbage authored
Improve port-sharing performance by allowing any process to receive packets from the shared hardware port under a spin lock for mutual exclusion. Previously, one process was nominated as the master and that process was responsible for receiving all packets from the shared hardware port and either consuming them or forwarding them to their destination. This led to starvation problems for other processes when the master process was busy in computation phases. Signed-off-by:
Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by:
Roland Dreier <rolandd@cisco.com>
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Ralph Campbell authored
The port sharing feature mixed kernel virtual addresses as well as physical addresses for the offset used to describe the mmap address to map the InfiniPath hardware into user space. This had a conflict on powerpc. The new scheme converts it to a physical address so it doesn't conflict with chip addresses and yet still fits in 40/44 bits so it isn't truncated by 32-bit applications calling mmap64(). Signed-off-by:
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Bryan O'Sullivan authored
If a receive work request has been removed from the queue but has not had a CQ entry generated for it and the QP is modified to the error state, the completion entry generated is incorrect. This patch fixes the problem. Signed-off-by:
Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by:
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Bryan O'Sullivan authored
Code was converted from a &= ~mask to clear_bit, but the bit was left shifted instead of being used directly, so we were either trashing memory several pages away, or sometimes taking a kernel page fault on an invalid page. Signed-off-by:
Dave Olson <dave.olson@qlogic.com> Signed-off-by:
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Bryan O'Sullivan authored
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:
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Ralph Campbell authored
This patch fixes a number of bugs with updating the PSN for retries of RC requests. Signed-off-by:
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Ralph Campbell authored
When switching to the QP error state, the completion queue entries (error or flush) were not being generated correctly. Signed-off-by:
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Bryan O'Sullivan authored
ipath_dbg doesn't need the same prefixes that printk does. Signed-off-by:
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Ralph Campbell authored
This patch adds support for multiple RDMA reads and atomics to be sent before an ACK is required to be seen by the requester. Signed-off-by:
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Ralph Campbell authored
If a post send is done in loopback and there is no receive queue entry, the sending QP is put on a timeout list for a while so the receiver has a chance to post a receive buffer. If the another post send is done, the code incorrectly tried to put the QP on the timeout list again an corrupted the timeout list. This eventually leads to a spin lock deadlock NMI due to the timer function looping forever with the lock held. Signed-off-by:
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Ralph Campbell authored
A silly programming error causes a CQ entry to not be generated if a SRQ limit event is generated. Signed-off-by:
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Ralph Campbell authored
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:
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Bryan O'Sullivan authored
The chip documentation on the expected TID vs eager TID parity error bits was reversed from what was implemented in the RTL, for both chips. This corrects the definitions. Signed-off-by:
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Bryan O'Sullivan authored
The loop which initializes the user memory region from an array of pages was using the wrong limit for the array. This worked OK when dma_map_sg() returned the same number as the number of pages. This patch fixes the problem. Signed-off-by:
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Bryan O'Sullivan authored
This is a sticky state. It is useful for diagnosing problems with boards versus cable/switch problems. Signed-off-by:
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Roland Dreier authored
There's no point in printing the opcode field in the completion handling debugging output, since the type of completion is already printed at the beginning of the line. In fact the opcode field is not even defined for completions with a status other than success. Signed-off-by: -
Hal Rosenstock authored
The current ib_umad code never accesses bits past IB_UMAD_MAX_PORTS in dev_map[]. We shouldn't declare it to be twice as big. Pointed-out-by:
Hal Rosenstock <halr@voltaire.com>
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Roland Dreier authored
Since commit b1c1b6a3 ("IB/ipath: merge ipath_core and ib_ipath drivers"), CONFIG_IPATH_CORE no longer exists, so there's no reason to have a line for it in drivers/Makefile. Pointed out by Robert P. J. Day <rpjday@mindspring.com>. Signed-off-by:
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- 17 Apr, 2007 22 commits
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [BRIDGE]: Unaligned access when comparing ethernet addresses [SCTP]: Unmap v4mapped addresses during SCTP_BINDX_REM_ADDR operation. [SCTP]: Fix assertion (!atomic_read(&sk->sk_rmem_alloc)) failed message [NET]: Set a separate lockdep class for neighbour table's proxy_queue [NET]: Fix UDP checksum issue in net poll mode. [KEY]: Fix conversion between IPSEC_MODE_xxx and XFRM_MODE_xxx. [NET]: Get rid of alloc_skb_from_cache
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Linus Torvalds authored
* '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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git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds authored
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: [PATCH] x86: Fix potential overflow in perfctr reservation [PATCH] x86: Fix gcc 4.2 _proxy_pda workaround
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Olof Johansson authored
* Last write during i2c_xfer is of the wrong byte (off-by-1). * Read length is wrong for some of the reads (mistakenly used the PEC version) Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
Jean Delvare <khali@linux-fr.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Jean Delvare authored
Looks like a local change I made to be able to test-compile the i2c-pasemi driver leaked upstream. Signed-off-by:
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Jean Delvare authored
Users have been complaining about the w83627ehf driver flooding their logs with debug messages like: w83627ehf 9191-0a10: Increasing fan 4 clock divider from 64 to 128 or: w83627ehf 9191-0290: Increasing fan 4 clock divider from 4 to 8 The reason is that we failed to actually write the LSB of the encoded clock divider value for that fan, causing the next read to report the same old value again and again. Additionally, the fan number was improperly reported, making the bug harder to find. Signed-off-by:
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Russell King authored
Provide an dummy implementation of devm_ioport_map() and devm_ioport_unmap() to allow drivers (eg, pata_platform) to build for platforms where CONFIG_NO_IOPORT is selected. Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by:
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NeilBrown authored
sk_info_authunix is not being protected properly so the object that it points to can be cache_put twice, leading to corruption. We borrow svsk->sk_defer_lock to provide the protection. We should probably rename that lock to have a more generic name - later. Thanks to Gabriel for reporting this. Cc: Greg Banks <gnb@melbourne.sgi.com> Cc: Gabriel Barazer <gabriel@oxeva.fr> Signed-off-by:
Neil Brown <neilb@suse.de> Cc: <stable@kernel.org> Signed-off-by:
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Andrew Morton authored
It got its lock and unlock backwards. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=8334 (obviously, this code could be using plain old spin_lock_irq(), too) Cc: <matthias.kaehlcke@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by:
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Evgeniy Dushistov authored
This patch should fix or partly fix this bug: http://bugzilla.kernel.org/show_bug.cgi?id=8276 The problem is: - if we see "zero link case" during reading inode operation, we call ufs_error(which remount fs readonly), but not "mark" inode as bad (1) - in readonly case we do not fill some data structures, which are used in read and write case (2) - VFS call ufs_delete_inode if link count is zero (3) so (1)->(3)->(2) cause oops, this patch should fix such scenario Signed-off-by:
Evgeniy Dushistov <dushistov@mail.ru> Cc: Jim Paris <jim@jtan.com> Signed-off-by:
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Ben Dooks authored
It turns out that the last patch to change set_cs to be kept in the controller's structure instead of the platform data was an incomplete change, and did not change the references to platfrom data in the setup xfer code. (This can prevent an oops.) Reported-by: <Ling.Alex@iac.com.tw> Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Ivan Kokshaysky authored
Override compiler .arch directive for generic kernel build. Signed-off-by:
Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by:
Richard Henderson <rth@twiddle.net> Signed-off-by:
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Ivan Kokshaysky authored
arch/alpha/kernel/sys_sx164.c Earlier firmware revisions need MVI fix as well. arch/alpha/kernel/sys_nautilus.c On UP1500 firmware reports wrong AGP IRQ (10 instead of 5). This causes interrupt storm if there is a PCI device that uses IRQ 5. Signed-off-by:
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Ivan Kokshaysky authored
Files: arch/alpha/kernel/core_mcpcia.c arch/alpha/kernel/sys_rawhide.c include/asm-alpha/core_mcpcia.h Determine correct hose configuration; RAWHIDE family can have 2 or 4 hoses, so make sure non-existent hoses are ignored. arch/alpha/kernel/err_titan.c Supply a needed #include <asm/irq_regs.h> arch/alpha/kernel/module.c Add some useful output to the relocation overflow messages. arch/alpha/kernel/sys_noritake.c Supply necessary noritake_end_irq() to correct interrupt handling. This fixes a problem first noted by hangs during boot probing with a DE500-BA TULIP NIC present. arch/alpha/kernel/sys_sio.c Correct saving of original PIRQ register (PCI IRQ routing); change default PIRQ setting to leave PCI IRQs 9 and 14 free to be used for sound (Multia) and IDE (any), respectively. include/asm-alpha/io.h Supply the "isa_virt_to_bus" routine. Signed-off-by:Jay Estabrook <jay.estabrook@hp.com> Signed-off-by:
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Benjamin Herrenschmidt authored
While digging through my MAP_FIXED changes, I found that rather obvious bug in /dev/mem mmap implementation for nommu archs. get_unmapped_area() is expected to return an address, not a pfn. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-By:
David Howells <dhowells@redhat.com> Cc: <stable@kernel.org> Signed-off-by:
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Randy Dunlap authored
Make kernel-doc comments match macro names. Correct parameter names in a few places. Remove '#' from beginning of kernel-doc comment macro names. Remove extra (erroneous) blank lines in kernel-doc. Warning(plist.h:100): Cannot understand * #PLIST_HEAD_INIT - static struct plist_head initializer on line 100 - I thought it was a doc line Warning(plist.h:112): Cannot understand * #PLIST_NODE_INIT - static struct plist_node initializer on line 112 - I thought it was a doc line Warning(plist.h:103): No description found for parameter '_lock' Warning(plist.h:129): No description found for parameter 'lock' Warning(plist.h:158): No description found for parameter 'pos' Warning(plist.h:169): No description found for parameter 'pos' Warning(plist.h:169): No description found for parameter 'n' Warning(plist.h:179): No description found for parameter 'mem' This still leaves one warning & one error that need attention: Error(plist.h:219): cannot understand prototype: '(' Warning(plist.h): no structured comments found Acked-by:Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: Daniel Walker <dwalker@mvista.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Alan Cox authored
The patch checks for "|" in the pattern not the output and doesn't nail a pid on to a piped name (as it is a program name not a file) Also fixes a very very obscure security corner case. If you happen to have decided on a core pattern that starts with the program name then the user can run a program called "|myevilhack" as it stands. I doubt anyone does this. Signed-off-by:
Alan Cox <alan@redhat.com> Confirmed-by:
Christopher S. Aker <caker@theshore.net> Cc: <stable@kernel.org> Signed-off-by:
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Don Zickus authored
Trivial change to pass vmsplice arguments through the compat layer on pp64. Signed-off-by:
Don Zickus <dzickus@redhat.com> Acked-by:
Stephen Rothwell <sfr@canb.auug.org.au> Acked-by:
Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Evgeny Kravtsunov authored
compare_ether_addr() implicitly requires that the addresses passed are 2-bytes aligned in memory. This is not true for br_stp_change_bridge_id() and br_stp_recalculate_bridge_id() in which one of the addresses is unsigned char *, and thus may not be 2-bytes aligned. Signed-off-by:
Evgeny Kravtsunov <emkravts@openvz.org> Signed-off-by:
Kirill Korotaev <dev@openvz.org> Signed-off-by:
Pavel Emelianov <xemul@openvz.org>
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Paolo Galtieri authored
During the sctp_bindx() call to add additional addresses to the endpoint, any v4mapped addresses are converted and stored as regular v4 addresses. However, when trying to remove these addresses, the v4mapped addresses are not converted and the operation fails. This patch unmaps the addresses on during the remove operation as well. Signed-off-by:
Paolo Galtieri <pgaltieri@mvista.com> Signed-off-by:
Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Tsutomu Fujii authored
In current implementation, LKSCTP does receive buffer accounting for data in sctp_receive_queue and pd_lobby. However, LKSCTP don't do accounting for data in frag_list when data is fragmented. In addition, LKSCTP doesn't do accounting for data in reasm and lobby queue in structure sctp_ulpq. When there are date in these queue, assertion failed message is printed in inet_sock_destruct because sk_rmem_alloc of oldsk does not become 0 when socket is destroyed. Signed-off-by:
Tsutomu Fujii <t-fujii@nb.jp.nec.com> Signed-off-by:
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Pavel Emelianov authored
Otherwise the following calltrace will lead to a wrong lockdep warning: neigh_proxy_process() `- lock(neigh_table->proxy_queue.lock); arp_redo /* via tbl->proxy_redo */ arp_process neigh_event_ns neigh_update skb_queue_purge `- lock(neighbor->arp_queue.lock); This is not a deadlock actually, as neighbor table's proxy_queue and the neighbor's arp_queue are different queues. Lockdep thinks there is a deadlock as both queues are initialized with skb_queue_head_init() and thus have a common class. Signed-off-by:
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