- 03 Nov, 2012 2 commits
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Michael S. Tsirkin authored
Orphaning frags for zero copy skbs needs to allocate data in atomic context so is has a chance to fail. If it does we currently discard the skb which is safe, but we don't report anything to the caller, so it can not recover by e.g. disabling zero copy. Add an API to free skb reporting such errors: this is used by tun in case orphaning frags fails. Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Michael S. Tsirkin authored
Even if skb is marked for zero copy, net core might still decide to copy it later which is somewhat slower than a copy in user context: besides copying the data we need to pin/unpin the pages. Add a parameter reporting such cases through zero copy callback: if this happens a lot, device can take this into account and switch to copying in user context. This patch updates all users but ignores the passed value for now: it will be used by follow-up patches. Signed-off-by:
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- 02 Nov, 2012 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-nextDavid S. Miller authored
Jeff Kirsher says: ==================== This series contains updates to igb, ixgbe and e1000. ==================== Signed-off-by:
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- 01 Nov, 2012 37 commits
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Amerigo Wang authored
#if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by:
Cong Wang <amwang@redhat.com> Signed-off-by:
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Amerigo Wang authored
#if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by:
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Nicolas Dichtel authored
Signed-off-by:
Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by:
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stephen hemminger authored
This was picked up by sparse. Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
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Frank Li authored
This patch adds a driver for the FEC(MX6) that offers time stamping and a PTP haderware clock. Because FEC\ENET(MX6) hardware frequency adjustment is complex, we have implemented this in software by changing the multiplication factor of the timecounter. Signed-off-by:
Frank Li <Frank.Li@freescale.com> Signed-off-by:
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Frank Li authored
Set GRP1 BIT21 ENET_CLK_SEL: Enet tx reference clk from internal clock from anatop (loopback through pad), this clock also sent out to external PHY Signed-off-by:
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Frank Li authored
Add ENET 1588 clock input pin MX6Q_PAD_GPIO_16__ENET_ANATOP_ETHERNET_REF_OUT and anatop PLL8 clock source for ENET Signed-off-by:
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Frank Li authored
A new file fec_ptp.c will use fec_enet_private to support 1588 PTP move such structure to common header file fec.h Signed-off-by:
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Hannes Frederic Sowa authored
Signed-off-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
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Richard Cochran authored
This patch hooks into the CPTS code and adds support for the HWTSTAMP ioctl. The patch includes code for the CPSW version found in the dm814x even though the background device tree support for this board is still missing. Signed-off-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
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Richard Cochran authored
This patch adds a way to configure the CPTS input clock scaling factors via the device tree. Signed-off-by:
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Richard Cochran authored
Because time stamping on both external ports of the switch simultaneously is positively useless from the application's point of view, this patch provides a DT configuration method to choose the active port. Signed-off-by:
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Richard Cochran authored
Signed-off-by:
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Richard Cochran authored
This patch adds a driver for the CPTS that offers time stamping and a PTP hardware clock. Because some of the CPTS hardware variants (like the am335x) do not support frequency adjustment, we have implemented this in software by changing the multiplication factor of the timecounter. Signed-off-by:
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Richard Cochran authored
This patch fixes the cpsw driver to operate correctly with both the dm814x and the am335x versions of the switch hardware. Signed-off-by:
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Richard Cochran authored
This patch lets the CPSW driver remember the version number in order to support the two different variants already in the wild. Signed-off-by:
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Richard Cochran authored
Signed-off-by:
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Richard Cochran authored
The code mixes up the CPSW_SS and the CPSW_WR register naming. This patch changes the names to conform to the published Technical Reference Manual from TI, in order to make working on the code less confusing. Signed-off-by:
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Mugunthan V N authored
Adding multicast address to ALE table via netdev ops to subscribe, transmit or receive multicast frames to and from the network Signed-off-by:
Mugunthan V N <mugunthanvnm@ti.com> Acked-by:
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Jean-Christophe PLAGNIOL-VILLARD authored
If no pinctrl available just report a warning as some architecture may not need to do anything. Signed-off-by:
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> [nicolas.ferre@atmel.com: adapt the error path, remove unneeded headers] Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by:
Joachim Eastwood <manabian@gmail.com> Signed-off-by:
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Havard Skinnemoen authored
Make the ethernet frame payload word-aligned, possibly making the memcpy into the skb a bit faster. This will be even more important after we eliminate the copy altogether. Also eliminate the redundant RX_OFFSET constant -- it has the same definition and purpose as NET_IP_ALIGN. Signed-off-by:
Havard Skinnemoen <havard@skinnemoen.net> [nicolas.ferre@atmel.com: adapt to newer kernel] Signed-off-by:
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Nicolas Ferre authored
Handle all TX errors, not only underruns. TX error management is deferred to a dedicated workqueue. Reinitialize the TX ring after treating all remaining frames, and restart the controller when everything has been cleaned up properly. Napi is not stopped during this task as the driver only handles napi for RX for now. With this sequence, we do not need a special check during the xmit method as the packets will be caught by TX disable during workqueue execution. Signed-off-by:
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Nicolas Ferre authored
Add macb_get_regs() ethtool function and its helper function: macb_get_regs_len(). The version field is deduced from the IP revision which gives the "MACB or GEM" information. An additional version field is reserved. Signed-off-by:
Ben Hutchings <bhutchings@solarflare.com> Tested-by:
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Havard Skinnemoen authored
Instead of masking head and tail every time we increment them, just let them wrap through UINT_MAX and mask them when subscripting. Add simple accessor functions to do the subscripting properly to minimize the chances of messing this up. This makes the code slightly smaller, and hopefully faster as well. Also, doing the ring buffer management this way will simplify things a lot when making the ring sizes configurable in the future. Available number of descriptors in ring buffer function by David Laight. Signed-off-by:
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Nicolas Ferre authored
On some revision of GEM, TSR status register has more information. Signed-off-by:
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Nicolas Ferre authored
This function has little meaning so remove it altogether and let ethtool core fill in the fields automatically. Signed-off-by:
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Havard Skinnemoen authored
Convert some noisy netdev_dbg() statements to netdev_vdbg(). Defining DEBUG will no longer fill up the logs; VERBOSE_DEBUG still does. Add one more verbose debug for ISR status. Signed-off-by:
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Havard Skinnemoen authored
Remove a couple of unneeded barriers and document the remaining ones. Signed-off-by:
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Patrice Vilchez authored
Add Gigabit Ethernet mode to GEM cadence IP and enable RGMII connection. Signed-off-by:
Patrice Vilchez <patrice.vilchez@atmel.com> Signed-off-by:
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Richard Cochran authored
This patch removes the timecompare code from the kernel. The top five reasons to do this are: 1. There are no more users of this code. 2. The original idea was a bit weak. 3. The original author has disappeared. 4. The code was not general purpose but tuned to a particular hardware, 5. There are better ways to accomplish clock synchronization. Signed-off-by:
John Stultz <john.stultz@linaro.org> Tested-by:
Bob Liu <lliubbo@gmail.com> Signed-off-by:
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Richard Cochran authored
The BF518 has a PTP time unit that works in a similar way to other MAC based clocks, like gianfar, ixp46x, and igb. This patch adds support for using the blackfin as a PHC. Although the blackfin hardware does offer a few ancillary features, this patch implements only the basic operations. Compile tested only. Signed-off-by:
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Richard Cochran authored
This patch replaces the sys time stamps and timecompare code with simple raw hardware time stamps in nanosecond resolution. The only tricky bit is to find a PTP Hardware Clock period slower than the input clock period and a power of two. Compile tested only. Signed-off-by:
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Richard Cochran authored
The hardware time stamping code is a compile time option for the blackfin. When it is not enabled, the driver should fall back to the standard ethtool reply to the get_ts_info query. Compile tested only. Signed-off-by:
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Richard Cochran authored
This patch adds an ioctl for PTP Hardware Clock (PHC) devices that allows user space to measure the time offset between the PHC and the system clock. Rather than hard coding any kind of estimation algorithm into the kernel, this patch takes the more flexible approach of just delivering an array of raw clock readings. In that way, the user space clock servo may be adapted to new and different hardware clocks. Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Signed-off-by:
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Ben Hutchings authored
Where a PTP clock driver is associated with a net or PHY driver, it should be enabled automatically whenever that driver is enabled. Therefore: - Make PTP clock drivers select rather than depending on PTP_1588_CLOCK - Remove separate boolean options for PTP clock drivers that are built as part of net driver modules. (This also fixes cases where the PTP subsystem is wrongly forced to be built-in.) - Set 'default y' for PTP clock drivers that depend on specific net drivers but are built separately Signed-off-by:
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Ben Hutchings authored
PTP hardware clock drivers that select PTP_1588_CLOCK must currently also select PPS. For those drivers that don't, the user must enable PPS, then enable PTP_1588_CLOCK, then the driver. Simplify things for developers and users by putting this selection in one place. Signed-off-by:
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Ben Hutchings authored
These are now established subsystems, and we want drivers to be able to select PPS and PTP_1588_CLOCK without depending on EXPERIMENTAL. Further, the use of EXPERIMENTAL is now deprecated in general. Signed-off-by:
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