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git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
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
...
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cxgb4 ipv6 does not guard against ipv6 being disabled, or the standard
ipv6 module vs inbuilt tri-state issue. This was fixed for cxgb4i & iw_cxgb4
but missed for cxgb4.
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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cxgb4 already handles CLIP updates from a previous changeset for iw_cxgb4,
there is no need to have this functionality in cxgb4i. Remove duplicated code
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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virtio spec requires drivers to set DRIVER_OK before using VQs.
This is set automatically after restore returns, virtio net violated this
rule by using receive VQs within restore.
To fix, call virtio_device_ready before using VQs.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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In the extremely unlikely event that driver initialization fails after
RX buffers are added, virtio net frees RX buffers while VQs are
still active, potentially causing device to use a freed buffer.
To fix, reset device first - same as we do on device removal.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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virtio spec requires drivers to set DRIVER_OK before using VQs.
This is set automatically after probe returns, virtio net violated this
rule by using receive VQs within probe.
To fix, call virtio_device_ready before using VQs.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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goto done;
done:
return;
is ugly, it was put there to make diff review easier.
replace by open-coded return.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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config_mutex served two purposes: prevent multiple concurrent config
change handlers, and synchronize access to config_enable flag.
Since commit dbf2576e37da0fcc7aacbfbb9fd5d3de7888a3c1
workqueue: make all workqueues non-reentrant
all workqueues are non-reentrant, and config_enable
is now gone.
Get rid of the unnecessary lock.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Now that virtio core ensures config changes don't arrive during probing,
drop config_enable flag in virtio net.
On removal, flush is now sufficient to guarantee that no change work is
queued.
This help simplify the driver, and will allow setting DRIVER_OK earlier
without losing config change notifications.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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o Number of arguments taken by destroy tx command is three
instead of two.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Initially we were programming maximum number of arguments.
Instead we should program number of arguments required in
a command.
o Maximum number of arguments for 82xx adapter is four. Fix it
for GET_ESWITCH_STATS command.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use t4_fw_upgrade instead of t4_load_fw to write firmware into FLASH, since
t4_load_fw doesn't co-ordinate with the firmware and the adapter can get hosed
enough to require a power cycle of the system.
Based on original work by Casey Leedom <leedom@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to review the whole glue logic adopted on STi SoCs that
was bugged.
In the old glue-logic there was a lot of confusion when setup the
retiming especially for STiD127 where, for example, the bits 6 and 7
(in the GMAC control register) have a different meaning of what is
used for STiH4xx SoCs. So we cannot adopt the same glue for all these
SoCs.
Moreover, GiGa on STiD127 didn't work and, for all the SoCs, the RGMII
couldn't run when the speed was 10Mbps (because the clock was not properly
managed).
Note that the phy clock needs to be provided by the platform as well as
documented in the related binding file (updated as consequence).
The old code supported too many configurations never adopted and validated.
This made the code very complex to maintain and debug in case of issues.
The patch simplifies all the configurations as commented in the tables
inside the file and obviously it has been tested on all the boards
based on the SoCs mentioned.
With this patch, the dwmac-sti is also ready to support new configurations that
will be available on next SoC generations.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds the missing compatibility to the STiH407 SoC.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On several STi platforms: e.g. stihxxx-b2120 an Ethernet switch is
embedded and connected to the stmmac via RGMII mode. So this is managed
by using the FIXED_PHY. In that case, the support in the platform needs
to be fixed to allow the stmmac to dialog with the switch via fixed-link
by using phy_bus_name property.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tag_protocol is now an enum, so drivers have to check against it.
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Added link_state function pointer to the xgene__mac_ops structure
- Moved ring manager (pdata->rm) assignment to xgene_enet_setup_ops
- Removed unused variable (pdata->phy_addr) and macro (FULL_DUPLEX)
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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remove all the child devices from the system to make sure that re-insert of
cpsw module doesn't fail on child device populated by of_platform_populate().
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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detected
remove spinlock in cpdma_desc_pool_destroy() as there is no active cpdma
channel and iounmap should be called without auquiring lock.
root@dra7xx-evm:~# modprobe -r ti_cpsw
[ 50.539743]
[ 50.541312] ======================================================
[ 50.547796] [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ]
[ 50.554826] 3.14.19-02124-g95c5b7b #308 Not tainted
[ 50.559939] ------------------------------------------------------
[ 50.566416] modprobe/1921 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[ 50.573347] (vmap_area_lock){+.+...}, at: [<c01127fc>] find_vmap_area+0x10/0x6c
[ 50.581132]
[ 50.581132] and this task is already holding:
[ 50.587249] (&(&pool->lock)->rlock#2){..-...}, at: [<bf017c74>] cpdma_ctlr_destroy+0x5c/0x114 [davinci_cpdma]
[ 50.597766] which would create a new lock dependency:
[ 50.603048] (&(&pool->lock)->rlock#2){..-...} -> (vmap_area_lock){+.+...}
[ 50.610296]
[ 50.610296] but this new dependency connects a SOFTIRQ-irq-safe lock:
[ 50.618601] (&(&pool->lock)->rlock#2){..-...}
... which became SOFTIRQ-irq-safe at:
[ 50.626829] [<c06585a4>] _raw_spin_lock_irqsave+0x38/0x4c
[ 50.632677] [<bf01773c>] cpdma_desc_free.constprop.7+0x28/0x58 [davinci_cpdma]
[ 50.640437] [<bf0177e8>] __cpdma_chan_free+0x7c/0xa8 [davinci_cpdma]
[ 50.647289] [<bf017908>] __cpdma_chan_process+0xf4/0x134 [davinci_cpdma]
[ 50.654512] [<bf017984>] cpdma_chan_process+0x3c/0x54 [davinci_cpdma]
[ 50.661455] [<bf0277e8>] cpsw_poll+0x14/0xa8 [ti_cpsw]
[ 50.667038] [<c05844f4>] net_rx_action+0xc0/0x1e8
[ 50.672150] [<c0048234>] __do_softirq+0xcc/0x304
[ 50.677183] [<c004873c>] irq_exit+0xa8/0xfc
[ 50.681751] [<c000eeac>] handle_IRQ+0x50/0xb0
[ 50.686513] [<c0008638>] gic_handle_irq+0x28/0x5c
[ 50.691628] [<c06590a4>] __irq_svc+0x44/0x5c
[ 50.696289] [<c0658ab4>] _raw_spin_unlock_irqrestore+0x34/0x44
[ 50.702591] [<c065a9c4>] do_page_fault.part.9+0x144/0x3c4
[ 50.708433] [<c065acb8>] do_page_fault+0x74/0x84
[ 50.713453] [<c00083dc>] do_DataAbort+0x34/0x98
[ 50.718391] [<c065923c>] __dabt_usr+0x3c/0x40
[ 50.723148]
[ 50.723148] to a SOFTIRQ-irq-unsafe lock:
[ 50.728893] (vmap_area_lock){+.+...}
... which became SOFTIRQ-irq-unsafe at:
[ 50.736476] ... [<c06584e8>] _raw_spin_lock+0x28/0x38
[ 50.741876] [<c011376c>] alloc_vmap_area.isra.28+0xb8/0x300
[ 50.747908] [<c0113a44>] __get_vm_area_node.isra.29+0x90/0x134
[ 50.754210] [<c011486c>] get_vm_area_caller+0x3c/0x48
[ 50.759692] [<c0114be0>] vmap+0x40/0x78
[ 50.763900] [<c09442f0>] check_writebuffer_bugs+0x54/0x1a0
[ 50.769835] [<c093eac0>] start_kernel+0x320/0x388
[ 50.774952] [<80008074>] 0x80008074
[ 50.778793]
[ 50.778793] other info that might help us debug this:
[ 50.778793]
[ 50.787181] Possible interrupt unsafe locking scenario:
[ 50.787181]
[ 50.794295] CPU0 CPU1
[ 50.799042] ---- ----
[ 50.803785] lock(vmap_area_lock);
[ 50.807446] local_irq_disable();
[ 50.813652] lock(&(&pool->lock)->rlock#2);
[ 50.820782] lock(vmap_area_lock);
[ 50.827086] <Interrupt>
[ 50.829823] lock(&(&pool->lock)->rlock#2);
[ 50.834490]
[ 50.834490] *** DEADLOCK ***
[ 50.834490]
[ 50.840695] 4 locks held by modprobe/1921:
[ 50.844981] #0: (&__lockdep_no_validate__){......}, at: [<c03e53e8>] driver_detach+0x44/0xb8
[ 50.854038] #1: (&__lockdep_no_validate__){......}, at: [<c03e53f4>] driver_detach+0x50/0xb8
[ 50.863102] #2: (&(&ctlr->lock)->rlock){......}, at: [<bf017c34>] cpdma_ctlr_destroy+0x1c/0x114 [davinci_cpdma]
[ 50.873890] #3: (&(&pool->lock)->rlock#2){..-...}, at: [<bf017c74>] cpdma_ctlr_destroy+0x5c/0x114 [davinci_cpdma]
[ 50.884871]
the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
[ 50.892827] -> (&(&pool->lock)->rlock#2){..-...} ops: 167 {
[ 50.898703] IN-SOFTIRQ-W at:
[ 50.901995] [<c06585a4>] _raw_spin_lock_irqsave+0x38/0x4c
[ 50.909476] [<bf01773c>] cpdma_desc_free.constprop.7+0x28/0x58 [davinci_cpdma]
[ 50.918878] [<bf0177e8>] __cpdma_chan_free+0x7c/0xa8 [davinci_cpdma]
[ 50.927366] [<bf017908>] __cpdma_chan_process+0xf4/0x134 [davinci_cpdma]
[ 50.936218] [<bf017984>] cpdma_chan_process+0x3c/0x54 [davinci_cpdma]
[ 50.944794] [<bf0277e8>] cpsw_poll+0x14/0xa8 [ti_cpsw]
[ 50.952009] [<c05844f4>] net_rx_action+0xc0/0x1e8
[ 50.958765] [<c0048234>] __do_softirq+0xcc/0x304
[ 50.965432] [<c004873c>] irq_exit+0xa8/0xfc
[ 50.971635] [<c000eeac>] handle_IRQ+0x50/0xb0
[ 50.978035] [<c0008638>] gic_handle_irq+0x28/0x5c
[ 50.984788] [<c06590a4>] __irq_svc+0x44/0x5c
[ 50.991085] [<c0658ab4>] _raw_spin_unlock_irqrestore+0x34/0x44
[ 50.999023] [<c065a9c4>] do_page_fault.part.9+0x144/0x3c4
[ 51.006510] [<c065acb8>] do_page_fault+0x74/0x84
[ 51.013171] [<c00083dc>] do_DataAbort+0x34/0x98
[ 51.019738] [<c065923c>] __dabt_usr+0x3c/0x40
[ 51.026129] INITIAL USE at:
[ 51.029335] [<c06585a4>] _raw_spin_lock_irqsave+0x38/0x4c
[ 51.036729] [<bf017d78>] cpdma_chan_submit+0x4c/0x2f0 [davinci_cpdma]
[ 51.045225] [<bf02863c>] cpsw_ndo_open+0x378/0x6bc [ti_cpsw]
[ 51.052897] [<c058747c>] __dev_open+0x9c/0x104
[ 51.059287] [<c05876ec>] __dev_change_flags+0x88/0x160
[ 51.066420] [<c05877e4>] dev_change_flags+0x18/0x48
[ 51.073270] [<c05ed51c>] devinet_ioctl+0x61c/0x6e0
[ 51.080029] [<c056ee54>] sock_ioctl+0x5c/0x298
[ 51.086418] [<c01350a4>] do_vfs_ioctl+0x78/0x61c
[ 51.092993] [<c01356ac>] SyS_ioctl+0x64/0x74
[ 51.099200] [<c000e580>] ret_fast_syscall+0x0/0x48
[ 51.105956] }
[ 51.107696] ... key at: [<bf019000>] __key.21312+0x0/0xfffff650 [davinci_cpdma]
[ 51.115912] ... acquired at:
[ 51.119019] [<c00899ac>] lock_acquire+0x9c/0x104
[ 51.124138] [<c06584e8>] _raw_spin_lock+0x28/0x38
[ 51.129341] [<c01127fc>] find_vmap_area+0x10/0x6c
[ 51.134547] [<c0114960>] remove_vm_area+0x8/0x6c
[ 51.139659] [<c0114a7c>] __vunmap+0x20/0xf8
[ 51.144318] [<c001c350>] __arm_iounmap+0x10/0x18
[ 51.149440] [<bf017d08>] cpdma_ctlr_destroy+0xf0/0x114 [davinci_cpdma]
[ 51.156560] [<bf026294>] cpsw_remove+0x48/0x8c [ti_cpsw]
[ 51.162407] [<c03e62c8>] platform_drv_remove+0x18/0x1c
[ 51.168063] [<c03e4c44>] __device_release_driver+0x70/0xc8
[ 51.174094] [<c03e5458>] driver_detach+0xb4/0xb8
[ 51.179212] [<c03e4a6c>] bus_remove_driver+0x4c/0x90
[ 51.184693] [<c00b024c>] SyS_delete_module+0x10c/0x198
[ 51.190355] [<c000e580>] ret_fast_syscall+0x0/0x48
[ 51.195661]
[ 51.197217]
the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock:
[ 51.205986] -> (vmap_area_lock){+.+...} ops: 520 {
[ 51.211032] HARDIRQ-ON-W at:
[ 51.214321] [<c06584e8>] _raw_spin_lock+0x28/0x38
[ 51.221090] [<c011376c>] alloc_vmap_area.isra.28+0xb8/0x300
[ 51.228750] [<c0113a44>] __get_vm_area_node.isra.29+0x90/0x134
[ 51.236690] [<c011486c>] get_vm_area_caller+0x3c/0x48
[ 51.243811] [<c0114be0>] vmap+0x40/0x78
[ 51.249654] [<c09442f0>] check_writebuffer_bugs+0x54/0x1a0
[ 51.257239] [<c093eac0>] start_kernel+0x320/0x388
[ 51.263994] [<80008074>] 0x80008074
[ 51.269474] SOFTIRQ-ON-W at:
[ 51.272769] [<c06584e8>] _raw_spin_lock+0x28/0x38
[ 51.279525] [<c011376c>] alloc_vmap_area.isra.28+0xb8/0x300
[ 51.287190] [<c0113a44>] __get_vm_area_node.isra.29+0x90/0x134
[ 51.295126] [<c011486c>] get_vm_area_caller+0x3c/0x48
[ 51.302245] [<c0114be0>] vmap+0x40/0x78
[ 51.308094] [<c09442f0>] check_writebuffer_bugs+0x54/0x1a0
[ 51.315669] [<c093eac0>] start_kernel+0x320/0x388
[ 51.322423] [<80008074>] 0x80008074
[ 51.327906] INITIAL USE at:
[ 51.331112] [<c06584e8>] _raw_spin_lock+0x28/0x38
[ 51.337775] [<c011376c>] alloc_vmap_area.isra.28+0xb8/0x300
[ 51.345352] [<c0113a44>] __get_vm_area_node.isra.29+0x90/0x134
[ 51.353197] [<c011486c>] get_vm_area_caller+0x3c/0x48
[ 51.360224] [<c0114be0>] vmap+0x40/0x78
[ 51.365977] [<c09442f0>] check_writebuffer_bugs+0x54/0x1a0
[ 51.373464] [<c093eac0>] start_kernel+0x320/0x388
[ 51.380131] [<80008074>] 0x80008074
[ 51.385517] }
[ 51.387260] ... key at: [<c0a66948>] vmap_area_lock+0x10/0x20
[ 51.393841] ... acquired at:
[ 51.396945] [<c00899ac>] lock_acquire+0x9c/0x104
[ 51.402060] [<c06584e8>] _raw_spin_lock+0x28/0x38
[ 51.407266] [<c01127fc>] find_vmap_area+0x10/0x6c
[ 51.412478] [<c0114960>] remove_vm_area+0x8/0x6c
[ 51.417592] [<c0114a7c>] __vunmap+0x20/0xf8
[ 51.422252] [<c001c350>] __arm_iounmap+0x10/0x18
[ 51.427369] [<bf017d08>] cpdma_ctlr_destroy+0xf0/0x114 [davinci_cpdma]
[ 51.434487] [<bf026294>] cpsw_remove+0x48/0x8c [ti_cpsw]
[ 51.440336] [<c03e62c8>] platform_drv_remove+0x18/0x1c
[ 51.446000] [<c03e4c44>] __device_release_driver+0x70/0xc8
[ 51.452031] [<c03e5458>] driver_detach+0xb4/0xb8
[ 51.457147] [<c03e4a6c>] bus_remove_driver+0x4c/0x90
[ 51.462628] [<c00b024c>] SyS_delete_module+0x10c/0x198
[ 51.468289] [<c000e580>] ret_fast_syscall+0x0/0x48
[ 51.473584]
[ 51.475140]
[ 51.475140] stack backtrace:
[ 51.479703] CPU: 0 PID: 1921 Comm: modprobe Not tainted 3.14.19-02124-g95c5b7b #308
[ 51.487744] [<c0016090>] (unwind_backtrace) from [<c0012060>] (show_stack+0x10/0x14)
[ 51.495865] [<c0012060>] (show_stack) from [<c0652a20>] (dump_stack+0x78/0x94)
[ 51.503444] [<c0652a20>] (dump_stack) from [<c0086f18>] (check_usage+0x408/0x594)
[ 51.511293] [<c0086f18>] (check_usage) from [<c00870f8>] (check_irq_usage+0x54/0xb0)
[ 51.519416] [<c00870f8>] (check_irq_usage) from [<c0088724>] (__lock_acquire+0xe54/0x1b90)
[ 51.528077] [<c0088724>] (__lock_acquire) from [<c00899ac>] (lock_acquire+0x9c/0x104)
[ 51.536291] [<c00899ac>] (lock_acquire) from [<c06584e8>] (_raw_spin_lock+0x28/0x38)
[ 51.544417] [<c06584e8>] (_raw_spin_lock) from [<c01127fc>] (find_vmap_area+0x10/0x6c)
[ 51.552726] [<c01127fc>] (find_vmap_area) from [<c0114960>] (remove_vm_area+0x8/0x6c)
[ 51.560935] [<c0114960>] (remove_vm_area) from [<c0114a7c>] (__vunmap+0x20/0xf8)
[ 51.568693] [<c0114a7c>] (__vunmap) from [<c001c350>] (__arm_iounmap+0x10/0x18)
[ 51.576362] [<c001c350>] (__arm_iounmap) from [<bf017d08>] (cpdma_ctlr_destroy+0xf0/0x114 [davinci_cpdma])
[ 51.586494] [<bf017d08>] (cpdma_ctlr_destroy [davinci_cpdma]) from [<bf026294>] (cpsw_remove+0x48/0x8c [ti_cpsw])
[ 51.597261] [<bf026294>] (cpsw_remove [ti_cpsw]) from [<c03e62c8>] (platform_drv_remove+0x18/0x1c)
[ 51.606659] [<c03e62c8>] (platform_drv_remove) from [<c03e4c44>] (__device_release_driver+0x70/0xc8)
[ 51.616237] [<c03e4c44>] (__device_release_driver) from [<c03e5458>] (driver_detach+0xb4/0xb8)
[ 51.625264] [<c03e5458>] (driver_detach) from [<c03e4a6c>] (bus_remove_driver+0x4c/0x90)
[ 51.633749] [<c03e4a6c>] (bus_remove_driver) from [<c00b024c>] (SyS_delete_module+0x10c/0x198)
[ 51.642781] [<c00b024c>] (SyS_delete_module) from [<c000e580>] (ret_fast_syscall+0x0/0x48)
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
memories allocated with devm_* apis must not be freed with kfree apis,
so removing the kfree calls
Fixes: e194312854ed ('drivers: net: davinci_cpdma: Convert kzalloc() to devm_kzalloc().')
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Ring TX doorbell only if xmit_more is not set or the queue is stopped.
Suggested-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Prashant Sreedharan <prashant@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
FEC ptp timer has 4 channel compare/trigger function. It can be used to
enable pps output.
The pulse would be ouput high exactly on N second. The pulse ouput high
on compare event mode is used to produce pulse per second. The pulse
width would be one cycle based on ptp timer clock source.Since 31-bit
ptp hardware timer is used, the timer will wrap more than 2 seconds. We
need to reload the compare compare event about every 1 second.
Signed-off-by: Luwei Zhou <b45643@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The FEC IP supports hardware adjustment for ptp timer. Refer to the description of
ENET_ATCOR and ENET_ATINC registers in the spec about the hardware adjustment. This
patch uses hardware support to adjust the ptp offset and frequency on the slave side.
Signed-off-by: Luwei Zhou <b45643@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Fugang Duan <b38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When ptp switches from software adjustment to hardware ajustment, linux ptp can't converge.
It is caused by the IP limit. Hardware adjustment logcial have issue when ptp counter
runs over 0x80000000(31 bit counter). The internal IP reference manual already remove 32bit
free-running count support. This patch replace the 32-bit PTP timer with 31-bit.
Signed-off-by: Luwei Zhou <b45643@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This change adds support for skb->xmit_more based on the changes that were
made to igb to support the feature. The main changes are moving up the
check for maybe_stop_tx so that we can check netif_xmit_stopped to determine
if we must write the tail because we can add no further buffers.
Acked-by: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
reproduce:
make ARCH=arm C=1 2>fec.txt drivers/net/ethernet/freescale/fec_main.o
cat fec.txt
sparse warnings:
drivers/net/ethernet/freescale/fec_main.c:2916:12: warning: context imbalance
in 'fec_set_features' - different lock contexts for basic block
Christopher Li suggest to change as below:
if (need_lock) {
lock();
do_something_real();
unlock();
} else {
do_something_real();
}
Reported-by: Fabio Estevam <festevam@gmail.com>
Suggested-by: Christopher Li <sparse@chrisli.org>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Bug: Unable to send and receive Ethernet packets with Micrel PHY.
Affected devices:
KSZ8031RNL (commercial temp)
KSZ8031RNLI (industrial temp)
Description:
PHY device is correctly detected during probe.
PHY power-up default is 25MHz crystal clock input
and output 50MHz RMII clock to MAC.
Reconfiguration of PHY to input 50MHz RMII clock from MAC
causes PHY to become unresponsive if clock source is changed
after Operation Mode Strap Override (OMSO) register setup.
Cause:
Long lead times on parts where clock setup match circuit design
forces the usage of similar parts with wrong default setup.
Solution:
Swapped KSZ8031 register setup and added phy_write return code validation.
Tested with Freescale i.MX28 Fast Ethernet Controler (fec).
Signed-off-by: Bruno Thomsen <bth@kamstrup.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild changes from Michal Marek:
- fix for handling dependencies of *-objs targets by Masahiro Yamada
- lots of cleanups in the kbuild machinery, also by Masahiro
- fixes for the kconfig build to use an UTF-8 capable ncurses library
if possible and to build on not-so-standard installs
- some more minor fixes
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Do not reference *-n variables in the Makefile
kbuild: simplify build, clean, modbuiltin shorthands
kbuild: arm: Do not define "comma" twice
kbuild: remove obj-n and lib-n handling
kbuild: remove unnecessary variable initializaions
kbuild: remove unnecessary "obj- := dummy.o" trick
kbuild: handle C=... and M=... after entering into build directory
kbuild: use $(Q) for sub-make target
kbuild: fake the "Entering directory ..." message more simply
kconfig/lxdialog: get ncurses CFLAGS with pkg-config
kconfig: nconfig: fix multi-byte UTF handling
kconfig: lxdialog: fix spelling
kbuild: Make scripts executable
kbuild: remove redundant clean-files from scripts/kconfig/Makefile
kbuild: refactor script/kconfig/Makefile
kbuild: handle the dependency of multi-objs hostprogs appropriately
kbuild: handle multi-objs dependency appropriately
|
|
Instead of substituting non-printable characters by '_' let's print SSID
properly escaped by using recently added %*pE specifier.
[akpm@linux-foundation.org: fix printk type warning]
[akpm@linux-foundation.org: remove now-unused local `i']
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Instead of custom approach this allows to print escaped strings via
recently added kernel extension: %*pE.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Instead of custom approach this allows to print escaped strings via
recently added kernel extension: %*pE.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
"The big thing in this pile is Eric's unmount-on-rmdir series; we
finally have everything we need for that. The final piece of prereqs
is delayed mntput() - now filesystem shutdown always happens on
shallow stack.
Other than that, we have several new primitives for iov_iter (Matt
Wilcox, culled from his XIP-related series) pushing the conversion to
->read_iter()/ ->write_iter() a bit more, a bunch of fs/dcache.c
cleanups and fixes (including the external name refcounting, which
gives consistent behaviour of d_move() wrt procfs symlinks for long
and short names alike) and assorted cleanups and fixes all over the
place.
This is just the first pile; there's a lot of stuff from various
people that ought to go in this window. Starting with
unionmount/overlayfs mess... ;-/"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (60 commits)
fs/file_table.c: Update alloc_file() comment
vfs: Deduplicate code shared by xattr system calls operating on paths
reiserfs: remove pointless forward declaration of struct nameidata
don't need that forward declaration of struct nameidata in dcache.h anymore
take dname_external() into fs/dcache.c
let path_init() failures treated the same way as subsequent link_path_walk()
fix misuses of f_count() in ppp and netlink
ncpfs: use list_for_each_entry() for d_subdirs walk
vfs: move getname() from callers to do_mount()
gfs2_atomic_open(): skip lookups on hashed dentry
[infiniband] remove pointless assignments
gadgetfs: saner API for gadgetfs_create_file()
f_fs: saner API for ffs_sb_create_file()
jfs: don't hash direct inode
[s390] remove pointless assignment of ->f_op in vmlogrdr ->open()
ecryptfs: ->f_op is never NULL
android: ->f_op is never NULL
nouveau: __iomem misannotations
missing annotation in fs/file.c
fs: namespace: suppress 'may be used uninitialized' warnings
...
|
|
Pull networking fixes from David Miller:
"This set fixes a bunch of fallout from the changes that went in during
this merge window, particularly:
- Fix fsl_pq_mdio (Claudiu Manoil) and fm10k (Pranith Kumar) build
failures.
- Several networking drivers do atomic_set() on page counts where
that's not exactly legal. From Eric Dumazet.
- Make __skb_flow_get_ports() work cleanly with unaligned data, from
Alexander Duyck.
- Fix some kernel-doc buglets in rfkill and netlabel, from Fabian
Frederick.
- Unbalanced enable_irq_wake usage in bcmgenet and systemport
drivers, from Florian Fainelli.
- pxa168_eth needs to depend on HAS_DMA, from Geert Uytterhoeven.
- Multi-dequeue in the qdisc layer severely bypasses the fairness
limits the previous code used to enforce, reintroduce in a way that
at the same time doesn't compromise bulk dequeue opportunities.
From Jesper Dangaard Brouer.
- macvlan receive path unnecessarily hops through a softirq by using
netif_rx() instead of netif_receive_skb(). From Jason Baron"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (51 commits)
net: systemport: avoid unbalanced enable_irq_wake calls
net: bcmgenet: avoid unbalanced enable_irq_wake calls
net: bcmgenet: fix off-by-one in incrementing read pointer
net: fix races in page->_count manipulation
mlx4: fix race accessing page->_count
ixgbe: fix race accessing page->_count
igb: fix race accessing page->_count
fm10k: fix race accessing page->_count
net/phy: micrel: Add clock support for KSZ8021/KSZ8031
flow-dissector: Fix alignment issue in __skb_flow_get_ports
net: filter: fix the comments
Documentation: replace __sk_run_filter with __bpf_prog_run
macvlan: optimize the receive path
macvlan: pass 'bool' type to macvlan_count_rx()
drivers: net: xgene: Add 10GbE ethtool support
drivers: net: xgene: Add 10GbE support
drivers: net: xgene: Preparing for adding 10GbE support
dtb: Add 10GbE node to APM X-Gene SoC device tree
Documentation: dts: Update section header for APM X-Gene
MAINTAINERS: Update APM X-Gene section
...
|
|
Pull sparc updates from David Miller:
1) Move to 4-level page tables on sparc64 and support up to 53-bits of
physical addressing. Kernel static image BSS size reduced by
several megabytes.
2) M6/M7 cpu support, from Allan Pais.
3) Move to sparse IRQs, handle hypervisor TLB call errors more
gracefully, and add T5 perf_event support. From Bob Picco.
4) Recognize cdroms and compute geometry from capacity in virtual disk
driver, also from Allan Pais.
5) Fix memset() return value on sparc32, from Andreas Larsson.
6) Respect gfp flags in dma_alloc_coherent on sparc32, from Daniel
Hellstrom.
7) Fix handling of compound pages in virtual disk driver, from Dwight
Engen.
8) Fix lockdep warnings in LDC layer by moving IRQ requesting to
ldc_alloc() from ldc_bind().
9) Increase boot string length to 1024 bytes, from Dave Kleikamp.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: (31 commits)
sparc64: Fix lockdep warnings on reboot on Ultra-5
sparc64: Increase size of boot string to 1024 bytes
sparc64: Kill unnecessary tables and increase MAX_BANKS.
sparc64: sparse irq
sparc64: Adjust vmalloc region size based upon available virtual address bits.
sparc64: Increase MAX_PHYS_ADDRESS_BITS to 53.
sparc64: Use kernel page tables for vmemmap.
sparc64: Fix physical memory management regressions with large max_phys_bits.
sparc64: Adjust KTSB assembler to support larger physical addresses.
sparc64: Define VA hole at run time, rather than at compile time.
sparc64: Switch to 4-level page tables.
sparc64: Fix reversed start/end in flush_tlb_kernel_range()
sparc64: Add vio_set_intr() to enable/disable Rx interrupts
vio: fix reuse of vio_dring slot
sunvdc: limit each sg segment to a page
sunvdc: compute vdisk geometry from capacity
sunvdc: add cdrom and v1.1 protocol support
sparc: VIO protocol version 1.6
sparc64: Fix hibernation code refrence to PAGE_OFFSET.
sparc64: Move request_irq() from ldc_bind() to ldc_alloc()
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen updates from David Vrabel:
"Features and fixes:
- Add pvscsi frontend and backend drivers.
- Remove _PAGE_IOMAP PTE flag, freeing it for alternate uses.
- Try and keep memory contiguous during PV memory setup (reduces
SWIOTLB usage).
- Allow front/back drivers to use threaded irqs.
- Support large initrds in PV guests.
- Fix PVH guests in preparation for Xen 4.5"
* tag 'stable/for-linus-3.18-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (22 commits)
xen: remove DEFINE_XENBUS_DRIVER() macro
xen/xenbus: Remove BUG_ON() when error string trucated
xen/xenbus: Correct the comments for xenbus_grant_ring()
x86/xen: Set EFER.NX and EFER.SCE in PVH guests
xen: eliminate scalability issues from initrd handling
xen: sync some headers with xen tree
xen: make pvscsi frontend dependant on xenbus frontend
arm{,64}/xen: Remove "EXPERIMENTAL" in the description of the Xen options
xen-scsifront: don't deadlock if the ring becomes full
x86: remove the Xen-specific _PAGE_IOMAP PTE flag
x86/xen: do not use _PAGE_IOMAP PTE flag for I/O mappings
x86: skip check for spurious faults for non-present faults
xen/efi: Directly include needed headers
xen-scsiback: clean up a type issue in scsiback_make_tpg()
xen-scsifront: use GFP_ATOMIC under spin_lock
MAINTAINERS: Add xen pvscsi maintainer
xen-scsiback: Add Xen PV SCSI backend driver
xen-scsifront: Add Xen PV SCSI frontend driver
xen: Add Xen pvSCSI protocol description
xen/events: support threaded irqs for interdomain event channels
...
|
|
Pull file locking related changes from Jeff Layton:
"This release is a little more busy for file locking changes than the
last:
- a set of patches from Kinglong Mee to fix the lockowner handling in
knfsd
- a pile of cleanups to the internal file lease API. This should get
us a bit closer to allowing for setlease methods that can block.
There are some dependencies between mine and Bruce's trees this cycle,
and I based my tree on top of the requisite patches in Bruce's tree"
* tag 'locks-v3.18-1' of git://git.samba.org/jlayton/linux: (26 commits)
locks: fix fcntl_setlease/getlease return when !CONFIG_FILE_LOCKING
locks: flock_make_lock should return a struct file_lock (or PTR_ERR)
locks: set fl_owner for leases to filp instead of current->files
locks: give lm_break a return value
locks: __break_lease cleanup in preparation of allowing direct removal of leases
locks: remove i_have_this_lease check from __break_lease
locks: move freeing of leases outside of i_lock
locks: move i_lock acquisition into generic_*_lease handlers
locks: define a lm_setup handler for leases
locks: plumb a "priv" pointer into the setlease routines
nfsd: don't keep a pointer to the lease in nfs4_file
locks: clean up vfs_setlease kerneldoc comments
locks: generic_delete_lease doesn't need a file_lock at all
nfsd: fix potential lease memory leak in nfs4_setlease
locks: close potential race in lease_get_mtime
security: make security_file_set_fowner, f_setown and __f_setown void return
locks: consolidate "nolease" routines
locks: remove lock_may_read and lock_may_write
lockd: rip out deferred lock handling from testlock codepath
NFSD: Get reference of lockowner when coping file_lock
...
|
|
Multiple enable_irq_wake() calls will keep increasing the IRQ
wake_depth, which ultimately leads to the following types of
situation:
1) enable Wake-on-LAN interrupt w/o password
2) enable Wake-on-LAN interrupt w/ password
3) enable Wake-on-LAN interrupt w/o password
4) disable Wake-on-LAN interrupt
After step 4), SYSTEMPORT would always wake-up the system no matter what
wake-up device we use, which is not what we want. Fix this by making
sure there are no unbalanced enable_irq_wake() calls.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Multiple enable_irq_wake() calls will keep increasing the IRQ
wake_depth, which ultimately leads to the following types of
situation:
1) enable Wake-on-LAN interrupt w/o password
2) enable Wake-on-LAN interrupt w/ password
3) enable Wake-on-LAN interrupt w/o password
4) disable Wake-on-LAN interrupt
After step 4), GENET would always wake-up the system no matter what
wake-up device we use, which is not what we want. Fix this by making
sure there are no unbalanced enable_irq_wake() calls.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Commit b629be5c8399d7c423b92135eb43a86c924d1cbc ("net: bcmgenet: check
harder for out of memory conditions") moved the increment of the local
read pointer *before* reading from the hardware descriptor using
dmadesc_get_length_status(), which creates an off-by-one situation.
Fix this by moving again the read_ptr increment after we have read the
hardware descriptor to get both the control block and the read pointer
back in sync.
Fixes: b629be5c8399 ("net: bcmgenet: check harder for out of memory conditions")
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This is illegal to use atomic_set(&page->_count, ...) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This is illegal to use atomic_set(&page->_count, 2) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This is illegal to use atomic_set(&page->_count, 2) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This is illegal to use atomic_set(&page->_count, 2) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The KSZ8021 and KSZ8031 support RMII reference input clocks of 25MHz
and 50MHz. Both PHYs differ in the default frequency they expect
after reset. If this differs from the actual input clock, then
register 0x1f bit 7 must be changed.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The netif_rx() call on the fast path of macvlan_handle_frame() appears to
be there to ensure that we properly throttle incoming packets. However, it
would appear as though the proper throttling is already in place for all
possible ingress paths, and that the call is redundant. If packets are arriving
from the physical NIC, we've already throttled them by this point. Otherwise,
if they are coming via macvlan_queue_xmit(), it calls either
'dev_forward_skb()', which ends up calling netif_rx_internal(), or else in
the broadcast case, we are throttling via macvlan_broadcast_enqueue().
The test results below are from off the box to an lxc instance running macvlan.
Once the tranactions/sec stop increasing, the cpu idle time has gone to 0.
Results are from a quad core Intel E3-1270 V2@3.50GHz box with bnx2x 10G card.
for i in {10,100,200,300,400,500};
do super_netperf $i -H $ip -t TCP_RR; done
Average of 5 runs.
trans/sec trans/sec
(3.17-rc7-net-next) (3.17-rc7-net-next + this patch)
---------- ----------
208101 211534 (+1.6%)
839493 850162 (+1.3%)
845071 844053 (-.12%)
816330 819623 (+.4%)
778700 789938 (+1.4%)
735984 754408 (+2.5%)
Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Pass last argument to macvlan_count_rx() as the correct bool type.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
- Added 10GbE support
- Removed unused macros/variables
- Moved mac_init call to the end of hardware init
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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