kernel/drivers/net/ethernet/tile, branch linux-4.3.y

nohz: Prevent tilegx network driver interrupts

2015-07-29T13:44:59Z

Normally the tilegx networking shim sends irqs to all the cores to distribute the load of processing incoming-packet interrupts, so that you can get to multiple Gb's of traffic inbound. However, in nohz_full mode we don't want to interrupt the nohz_full cores by default, so we limit the set of cores we use to only the online housekeeping cores. To make client code easier to read, we introduce a new nohz_full accessor, housekeeping_cpumask(), which returns a pointer to the housekeeping_mask if nohz_full is enabled, and otherwise returns the cpu_possible_mask. Signed-off-by: Chris Metcalf Cc: Christoph Lameter Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Preeti U Murthy Cc: Rik van Riel Cc: Thomas Gleixner Cc: Viresh Kumar Signed-off-by: Frederic Weisbecker

net: batch of last_rx update avoidance in ethernet drivers.

2015-05-14T21:38:17Z

None of those drivers uses last_rx for its own needs. See 4dc89133f49b8cfd77ba7e83f5960aed63aaa99e ("net: add a comment on netdev->last_rx") for reference. Signed-off-by: Francois Romieu Cc: Tom Lendacky Cc: Zhangfei Gao Cc: Jeff Kirsher Cc: Wingman Kwok Cc: Murali Karicheri Cc: Chris Metcalf Signed-off-by: David S. Miller

Merge tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2015-04-20T17:19:03Z

Pull final removal of deprecated cpus_* cpumask functions from Rusty Russell: "This is the final removal (after several years!) of the obsolete cpus_* functions, prompted by their mis-use in staging. With these function removed, all cpu functions should only iterate to nr_cpu_ids, so we finally only allocate that many bits when cpumasks are allocated offstack" * tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (25 commits) cpumask: remove __first_cpu / __next_cpu cpumask: resurrect CPU_MASK_CPU0 linux/cpumask.h: add typechecking to cpumask_test_cpu cpumask: only allocate nr_cpumask_bits. Fix weird uses of num_online_cpus(). cpumask: remove deprecated functions. mips: fix obsolete cpumask_of_cpu usage. x86: fix more deprecated cpu function usage. ia64: remove deprecated cpus_ usage. powerpc: fix deprecated CPU_MASK_CPU0 usage. CPU_MASK_ALL/CPU_MASK_NONE: remove from deprecated region. staging/lustre/o2iblnd: Don't use cpus_weight staging/lustre/libcfs: replace deprecated cpus_ calls with cpumask_ staging/lustre/ptlrpc: Do not use deprecated cpus_* functions blackfin: fix up obsolete cpu function usage. parisc: fix up obsolete cpu function usage. tile: fix up obsolete cpu function usage. arm64: fix up obsolete cpu function usage. mips: fix up obsolete cpu function usage. x86: fix up obsolete cpu function usage. ...

ptp: tilegx: convert to the 64 bit get/set time methods.

2015-03-31T16:01:18Z

This driver is 64 bit only, and so this driver and device are ready for 2038. This patch changes the driver to the new PHC and also carries the timespec64 parameter on out to the gxio_mpipe_get- set_timestamp functions, making explicit the fact that the tv_sec field is 64 bits wide. Not even compile tested. Signed-off-by: Richard Cochran Acked-by: Chris Metcalf Signed-off-by: David S. Miller

drivers: fix up obsolete cpu function usage.

2015-03-05T03:07:02Z

Thanks to spatch, plus manual removal of "&*". Then a sweep for for_each_cpu_mask => for_each_cpu. Signed-off-by: Rusty Russell Acked-by: Rafael J. Wysocki Cc: Thomas Gleixner Cc: Herbert Xu Cc: Jason Cooper Cc: Chris Metcalf Cc: netdev@vger.kernel.org

tile: use %*pb[l] to print bitmaps including cpumasks and nodemasks

2015-02-14T05:21:37Z

printk and friends can now format bitmaps using '%*pb[l]'. cpumask and nodemask also provide cpumask_pr_args() and nodemask_pr_args() respectively which can be used to generate the two printf arguments necessary to format the specified cpu/nodemask. Signed-off-by: Tejun Heo Cc: Chris Metcalf Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15T05:48:18Z

Pull percpu consistent-ops changes from Tejun Heo: "Way back, before the current percpu allocator was implemented, static and dynamic percpu memory areas were allocated and handled separately and had their own accessors. The distinction has been gone for many years now; however, the now duplicate two sets of accessors remained with the pointer based ones - this_cpu_*() - evolving various other operations over time. During the process, we also accumulated other inconsistent operations. This pull request contains Christoph's patches to clean up the duplicate accessor situation. __get_cpu_var() uses are replaced with with this_cpu_ptr() and __this_cpu_ptr() with raw_cpu_ptr(). Unfortunately, the former sometimes is tricky thanks to C being a bit messy with the distinction between lvalues and pointers, which led to a rather ugly solution for cpumask_var_t involving the introduction of this_cpu_cpumask_var_ptr(). This converts most of the uses but not all. Christoph will follow up with the remaining conversions in this merge window and hopefully remove the obsolete accessors" * 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (38 commits) irqchip: Properly fetch the per cpu offset percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t -fix ia64: sn_nodepda cannot be assigned to after this_cpu conversion. Use __this_cpu_write. percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t Revert "powerpc: Replace __get_cpu_var uses" percpu: Remove __this_cpu_ptr clocksource: Replace __this_cpu_ptr with raw_cpu_ptr sparc: Replace __get_cpu_var uses avr32: Replace __get_cpu_var with __this_cpu_write blackfin: Replace __get_cpu_var uses tile: Use this_cpu_ptr() for hardware counters tile: Replace __get_cpu_var uses powerpc: Replace __get_cpu_var uses alpha: Replace __get_cpu_var ia64: Replace __get_cpu_var uses s390: cio driver &__get_cpu_var replacements s390: Replace __get_cpu_var uses mips: Replace __get_cpu_var uses MIPS: Replace __get_cpu_var uses in FPU emulator. arm: Replace __this_cpu_ptr with raw_cpu_ptr ...

drivers/net: Convert remaining uses of pr_warning to pr_warn

2014-09-10T03:37:08Z

Use the much more common pr_warn instead of pr_warning. Other miscellanea: o Typo fixes submiting/submitting o Coalesce formats o Realign arguments o Add missing terminating '\n' to formats Signed-off-by: Joe Perches Signed-off-by: David S. Miller

drivers/net/ethernet/tile: __get_cpu_var call introduced in 3.14

2014-08-26T17:45:48Z

Another case was merged for 3.14-rc1 Signed-off-by: Christoph Lameter Signed-off-by: Tejun Heo

drivers/net/ethernet/tile: Replace __get_cpu_var uses for address calculation

2014-08-26T17:45:46Z

Replace with this_cpu_ptr. Acked-by: Chris Metcalf Signed-off-by: Christoph Lameter Signed-off-by: Tejun Heo