| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Tim Harvey <tharvey@gateworks.com>
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Signed-off-by: Tim Harvey <tharvey@gateworks.com>
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Already reschedule when 1 or more frames came in.
Checking for a full queue could produce a re-schedule loop as
the checked RX ring location could contain undefined values
depending on activity in previous loops.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48580
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48579
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48334
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48333
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48332
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48330
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48329
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Based off of the GW2391-C, but with the following changes:
* 4x4in to 4x5in pcb
* flat panel connector for LED signals
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>
SVN-Revision: 47920
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Original comment was wrong about which pads are being set.
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>
SVN-Revision: 47919
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 43399
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 43398
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 43397
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 43395
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 43394
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Have gpio driver adopt irqdomain support so that there are
non-overlapping allocations of irq numbers mapped to gpio's.
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>
SVN-Revision: 42844
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also fixes a GPIO related regression from the upgrade to 3.10
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 42829
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 41917
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This reverts commit 0772ab938c0aedd7f4cc7127059d6ce8cf929dfa.
Trying to optimize calls to eth_complete_tx in this fasion causes a regression
where when sending only the tx queue can get disabled until a packet is
received. This original call to eth_schedule_poll() is scheduled so it
should not cause a performance issue.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 40592
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Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
SVN-Revision: 39894
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Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
SVN-Revision: 39892
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We already clean up tx descriptors in the napi eth_poll() function so it
would likely be rare to run out of available descriptors in eth_xmit. Thus
we can clean them up only when needed and return busy only when we
still don't have enough.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 39762
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The combination of r35942 and r35952 causes an issue where eth_schedule_poll()
can be called from a different CPU between the call to napi_complete() and the
setting of cur_index which can break the rx ring accounting and cause ethernet
latency and/or ethernet stalls. The issue can be easilly created by adding
a couple of artificial delays such as:
@@ -715,6 +715,7 @@ static int eth_poll(struct napi_struct *napi, int budget)
if (!received) {
napi_complete(napi);
+udelay(1000);
enable_irq(IRQ_CNS3XXX_SW_R0RXC);
}
@@ -727,6 +728,7 @@ static int eth_poll(struct napi_struct *napi, int budget)
rx_ring->cur_index = i;
wmb();
+udelay(1000);
enable_rx_dma(sw);
return received;
This patch moves the setting of cur_index back up where it needs to be and
addresses the original corner case that r35942 was trying to catch in an
improved fashion by checking to see if the rx descriptor ring has become
full before interrupts were re-enabled so that a poll can be scheduled again
and avoid an rx stall caused by rx interrupts ceasing to fire again.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 39761
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Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 38702
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Update ehci/ohci driver registration to conform to the new platform
drivers.
This fixes missing USB host support in 3.8.x
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 36309
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init and is useful only for testing
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 36241
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memory pressure
SVN-Revision: 35953
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xmit handler
SVN-Revision: 35952
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SVN-Revision: 35951
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descriptor entries
SVN-Revision: 35950
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SVN-Revision: 35949
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SVN-Revision: 35943
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When an rx interrupt comes in, rx interrupts are disabled and NAPI
polling is scheduled. During the NAPI poll, the driver first processes
received frames in the ring, then fills the dma descriptor slots with
new buffers and calls tx complete, before finally re-enabling rx
interrupts and completing NAPI (if below the budget).
If the hardware rx queue overflows before the napi complete is called,
the hardware will not throw any further rx interrupts and rx processing
stops completely.
Fix this by keeping NAPI polling scheduled until it completes a poll
without receiving any packets, and also handle NAPI completion before
refilling rx or completing tx.
SVN-Revision: 35942
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SVN-Revision: 35941
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performance
SVN-Revision: 35917
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SVN-Revision: 35908
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This makes the PCI bus topology more standard for devices behind a bridge
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 35078
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L2 cache via L2X0 cache controller available on some ARM boards can
provide a performance boost in some situations but decrease performance
in others. This adds a kernel cmdline to disable L2X0 for cns3xxx based
boards.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 34874
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function. This removes those from the dwc_otg driver and removes the patch
that comments out the linkage of udc-core so that the dwc_otg driver can
co-exist happily with other USB Device Controllers.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
SVN-Revision: 34475
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SVN-Revision: 34168
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SVN-Revision: 34167
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SVN-Revision: 34162
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SVN-Revision: 34161
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SVN-Revision: 34120
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Many Laguna products have on-board GPS with Pulse-per-second (PPS)
support. This patch adds kernel support (statically) and adds
the platform data in laguna board support.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 34115
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SVN-Revision: 34101
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