- 16 7月, 2017 2 次提交
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由 Doug Berger 提交于
Since the skb is attached to the first control block of a fragmented skb it is possible that the skb could be freed when reclaiming that control block before all fragments of the skb have been consumed by the hardware and unmapped. This commit introduces first_cb and last_cb pointers to the skb control block used by the driver to keep track of which transmit control blocks within a transmit ring are the first and last ones associated with the skb. It then splits the bcmgenet_free_cb() function into transmit (bcmgenet_free_tx_cb) and receive (bcmgenet_free_rx_cb) versions that can handle the unmapping of dma mapped memory and cleaning up the corresponding control block structure so that the skb is only freed after the last associated transmit control block is reclaimed. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NDoug Berger <opendmb@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
In case we fail to map a single fragment, we would be leaving the transmit ring populated with stale entries. This commit introduces the helper function bcmgenet_put_txcb() which takes care of rewinding the per-ring write pointer back to where we left. It also consolidates the functionality of bcmgenet_xmit_single() and bcmgenet_xmit_frag() into the bcmgenet_xmit() function to make the unmapping of control blocks cleaner. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Suggested-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDoug Berger <opendmb@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 6月, 2017 1 次提交
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由 yuval.shaia@oracle.com 提交于
Make return value void since function never return meaningfull value Signed-off-by: NYuval Shaia <yuval.shaia@oracle.com> Acked-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 3月, 2017 1 次提交
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由 Florian Fainelli 提交于
__bcmgenet_tx_reclaim() is currently summing TX bytes/packets in a way that is not SMP friendly, mutliples CPUs could run __bcmgenet_tx_reclaim() independently and still update stats->tx_bytes and stats->tx_packets, cloberring the other CPUs statistics. Fix this by tracking per RX and TX rings the number of bytes, packets, dropped and errors statistics, and provide a bcmgenet_get_stats() function which aggregates everything and returns a consistent output. Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 3月, 2017 1 次提交
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由 Florian Fainelli 提交于
Suspending the PHY would be putting it in a low power state where it may no longer allow us to do Wake-on-LAN. Fixes: cc013fb4 ("net: bcmgenet: correctly suspend and resume PHY device") Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 3月, 2017 8 次提交
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由 Doug Berger 提交于
This commit adds support for the GENETv5 implementation. The GENETv5 reports a major version of 6 instead of 5 so compensate for this when verifying the configuration of the driver. Also the EPHY revision is now contained in the MDIO registers of the PHY so the EPHY revision of 0 in GENET_VER_FMT is expected for GENETv5. Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
This commit changes the ioctl handling behavior to return the EOPNOTSUPP error code instead of the EINVAL error code when an unknown ioctl command value is detected. It also removes some redundant parsing of the ioctl command value and allows the SIOCSHWTSTAMP value to be handled. Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
The reclaim function should return the number of buffer descriptors reclaimed, not just the number corresponding to skb packets. Also, remove the unnecessary computation when updating the consumer index. While this is not a functional problem it could degrade performance of napi in a fragmented transmit stream. Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
Since the DMA interrupt status is latched and the DMA servicing can be polled, it is a good idea to clear the latched status of a DMA interrupt before performing the service that would be invoked by the interrupt. This prevents old status from causing spurious interrupts when the interrupt is unmasked at a later time. Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
The bcmgenet_wol_isr() handler performs the necessary processing for waking from a GENET event. There is no necessary functionality behind servicing the UMAC_IRQ_MPD_R event in the handling of isr0. Therefore the code that unmasks and masks this interrupt and that gets invoked in response to it is removed by this commit. Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
This commit moves DMA interrupt enabling out of init_umac() and adds the masking of these interrupts to the napi enable and disable code. Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
An assortment of non-functional lines are removed to reduce confusion and some typos in comments are corrected. Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
A 2's complement subtraction will always do a borrow, so masking off the sign bits is the same as conditionally adding (mask+1). Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 3月, 2017 8 次提交
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由 Doug Berger 提交于
The bcmgenet_tx_reclaim() function is used to reclaim transmit resources in different places within the driver. Most of them should not affect the state of the transmit flow control. This commit relocates the logic for waking tx queues based on freed resources to the napi polling function where it is more appropriate. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Edwin Chan 提交于
Make sure clock is enabled for ethtool ops. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NEdwin Chan <edwin.chan@broadcom.com> Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
When using the internal PHY it must be powered up when the MII is probed or the PHY will not be detected. Since the PHY is powered up at reset this has not been a problem. However, when the kernel is restarted with kexec the PHY will likely be powered down when the kernel starts so it will not be detected and the Ethernet link will not be established. This commit explicitly powers up the internal PHY when the GENET driver is probed to correct this behavior. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
Add a spinlock to ensure that irq0_stat is not unintentionally altered as the result of preemption. Also removed unserviced irq0 interrupts and removed irq1_stat since there is no bottom half service for those interrupts. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
Since the internal PHY is powered up during the open and resume functions it should be powered back down if the functions fail. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
The reserved gphy_rev value of 0x01ff must be tested before the old or new scheme for GPHY major versioning are tested, otherwise it will be treated as 0xff00 according to the old scheme. Fixes: b04a2f5b ("net: bcmgenet: add support for new GENET PHY revision scheme") Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
The gap between the Tx status counters and the Rx RUNT counters is now being added to allow correct reporting of the registers. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Doug Berger 提交于
The location of the RBUF overflow and error counters has moved between different version of the GENET MAC. This commit corrects the driver to read from the correct locations depending on the version of the GENET MAC. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NDoug Berger <opendmb@gmail.com> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 03 12月, 2016 1 次提交
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由 Florian Fainelli 提交于
__bcmgenet_tx_reclaim() and bcmgenet_free_rx_buffers() are not using the same struct device during unmap that was used for the map operation, which makes DMA-API debugging warn about it. Fix this by always using &priv->pdev->dev throughout the driver, using an identical device reference for all map/unmap calls. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 11月, 2016 1 次提交
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由 Florian Fainelli 提交于
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 27 9月, 2016 4 次提交
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由 Philippe Reynes 提交于
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Florian Fainelli 提交于
This reverts commit 62469c76 ("net: ethernet: bcmgenet: use phydev from struct net_device") because it causes GENETv1/2/3 adapters to expose the following behavior after an ifconfig down/up sequence: PING fainelli-linux (10.112.156.244): 56 data bytes 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.352 ms 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.472 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.496 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.517 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.536 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.557 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=752.448 ms (DUP!) This was previously fixed by commit 5dbebbb4 ("net: bcmgenet: Software reset EPHY after power on") but the commit we are reverting was essentially making this previous commit void, here is why. Without commit 62469c76 we would have the following scenario after an ifconfig down then up sequence: - bcmgenet_open() calls bcmgenet_power_up() to make sure the PHY is initialized *before* we get to initialize the UniMAC, this is critical to ensure the PHY is in a correct state, priv->phydev is valid, this code executes fine - second time from bcmgenet_mii_probe(), through the normal phy_init_hw() call (which arguably could be optimized out) Everything is fine in that case. With commit 62469c76, we would have the following scenario to happen after an ifconfig down then up sequence: - bcmgenet_close() calls phy_disonnect() which makes dev->phydev become NULL - when bcmgenet_open() executes again and calls bcmgenet_mii_reset() from bcmgenet_power_up() to initialize the internal PHY, the NULL check becomes true, so we do not reset the PHY, yet we keep going on and initialize the UniMAC, causing MAC activity to occur - we call bcmgenet_mii_reset() from bcmgenet_mii_probe(), but this is too late, the PHY is botched, and causes the above bogus pings/packets transmission/reception to occur Reported-by: NJaedon Shin <jaedon.shin@gmail.com> Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Philippe Reynes 提交于
This reverts commit 6b352ebc ("net: ethernet: broadcom: bcmgenet: use new api ethtool_{get|set}_link_ksettings"). We needs to revert the commit 62469c76 ("net: ethernet: bcmgenet: use phydev from struct net_device"), because this commit add a regression. As the commit 6b352ebc ("net: ethernet: broadcom: bcmgenet: use new api ethtool_{get|set}_link_ksettings") depend on the first one, we also need to revert it first. Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Florian Fainelli 提交于
This reverts commit 62469c76 ("net: ethernet: bcmgenet: use phydev from struct net_device") because it causes GENETv1/2/3 adapters to expose the following behavior after an ifconfig down/up sequence: PING fainelli-linux (10.112.156.244): 56 data bytes 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.352 ms 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.472 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.496 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.517 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.536 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.557 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=752.448 ms (DUP!) This was previously fixed by commit 5dbebbb4 ("net: bcmgenet: Software reset EPHY after power on") but the commit we are reverting was essentially making this previous commit void, here is why. Without commit 62469c76 we would have the following scenario after an ifconfig down then up sequence: - bcmgenet_open() calls bcmgenet_power_up() to make sure the PHY is initialized *before* we get to initialize the UniMAC, this is critical to ensure the PHY is in a correct state, priv->phydev is valid, this code executes fine - second time from bcmgenet_mii_probe(), through the normal phy_init_hw() call (which arguably could be optimized out) Everything is fine in that case. With commit 62469c76, we would have the following scenario to happen after an ifconfig down then up sequence: - bcmgenet_close() calls phy_disonnect() which makes dev->phydev become NULL - when bcmgenet_open() executes again and calls bcmgenet_mii_reset() from bcmgenet_power_up() to initialize the internal PHY, the NULL check becomes true, so we do not reset the PHY, yet we keep going on and initialize the UniMAC, causing MAC activity to occur - we call bcmgenet_mii_reset() from bcmgenet_mii_probe(), but this is too late, the PHY is botched, and causes the above bogus pings/packets transmission/reception to occur Reported-by: NJaedon Shin <jaedon.shin@gmail.com> Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 9月, 2016 1 次提交
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由 Baoyou Xie 提交于
We get 1 warning when building kernel with W=1: drivers/net/ethernet/broadcom/genet/bcmgenet.c:2763:5: warning: no previous prototype for 'bcmgenet_hfb_add_filter' [-Wmissing-prototypes] In fact, this function is implemented in drivers/net/ethernet/broadcom/genet/bcmgenet.c, but be called by no one, thus can be removed. So this patch removes the unused functions. Signed-off-by: NBaoyou Xie <baoyou.xie@linaro.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 9月, 2016 1 次提交
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由 Philippe Reynes 提交于
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 9月, 2016 1 次提交
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由 Julia Lawall 提交于
Check for ethtool_ops structures that are only stored in the ethtool_ops field of a net_device structure or passed as the second argument to netdev_set_default_ethtool_ops. These contexts are declared const, so ethtool_ops structures that have these properties can be declared as const also. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct ethtool_ops i@p = { ... }; @ok1@ identifier r.i; struct net_device e; position p; @@ e.ethtool_ops = &i@p; @ok2@ identifier r.i; expression e; position p; @@ netdev_set_default_ethtool_ops(e, &i@p) @bad@ position p != {r.p,ok1.p,ok2.p}; identifier r.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct ethtool_ops i = { ... }; // </smpl> Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 7月, 2016 1 次提交
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由 Philippe Reynes 提交于
This reverts commit 4386f566 ("net: ethernet: bcmgenet: use phy_ethtool_{get|set}_link_ksettings") This patch is wrong, the function phy_ethtool_{get|set}_link_ksettings don't check if the device is running, but the driver bcmgenet need this check. The function {get|set}_settings need to access the mdio bus, and this bus may only be used when the device is running. Otherwise, the clock is disable and a mdio access will fail. Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com> Acked-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 7月, 2016 2 次提交
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由 Philippe Reynes 提交于
There are two generics functions phy_ethtool_{get|set}_link_ksettings, so we can use them instead of defining the same code in the driver. Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Philippe Reynes 提交于
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phy in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 5月, 2016 1 次提交
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由 Florian Westphal 提交于
Replace all trans_start updates with netif_trans_update helper. change was done via spatch: struct net_device *d; @@ - d->trans_start = jiffies + netif_trans_update(d) Compile tested only. Cc: user-mode-linux-devel@lists.sourceforge.net Cc: linux-xtensa@linux-xtensa.org Cc: linux1394-devel@lists.sourceforge.net Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Cc: MPT-FusionLinux.pdl@broadcom.com Cc: linux-scsi@vger.kernel.org Cc: linux-can@vger.kernel.org Cc: linux-parisc@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-hams@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: devel@driverdev.osuosl.org Cc: b.a.t.m.a.n@lists.open-mesh.org Cc: linux-bluetooth@vger.kernel.org Signed-off-by: NFlorian Westphal <fw@strlen.de> Acked-by: NFelipe Balbi <felipe.balbi@linux.intel.com> Acked-by: NMugunthan V N <mugunthanvnm@ti.com> Acked-by: NAntonio Quartulli <a@unstable.cc> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 4月, 2016 1 次提交
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由 Eric Dumazet 提交于
On 64bit kernels, device stats are 64bit wide, not 32bit. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 4月, 2016 3 次提交
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由 Petri Gynther 提交于
Add Byte Queue Limits (BQL) support to bcmgenet driver. Signed-off-by: NPetri Gynther <pgynther@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Florian Fainelli 提交于
bcmgenet_isr1() and bcmgenet_isr0() run in hard irq context, we do not need to block irq again. Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NEric Dumazet <edumazet@google.com> Acked-by: NPetri Gynther <pgynther@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
By using napi_complete_done(), we allow fine tuning of /sys/class/net/ethX/gro_flush_timeout for higher GRO aggregation efficiency for a Gbit NIC. Check commit 24d2e4a5 ("tg3: use napi_complete_done()") for details. Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Petri Gynther <pgynther@google.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Acked-by: NFlorian Fainelli <f.fainelli@gmail.com> Acked-by: NPetri Gynther <pgynther@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 4月, 2016 2 次提交
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由 Petri Gynther 提交于
dmadesc_set() is used for setting the Tx buffer DMA address, length, and status bits on a Tx ring descriptor when a frame is being Tx'ed. Always set the Tx buffer DMA address first, before updating the length and status bits, i.e. giving the Tx descriptor to the hardware. The reason this is a cleanup rather than a fix is that the hardware won't transmit anything from a Tx ring until the TDMA producer index has been incremented. As long as the dmadesc_set() writes complete before the TDMA producer index write, life is good. Signed-off-by: NPetri Gynther <pgynther@google.com> Acked-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Petri Gynther 提交于
Add frag_size = skb_frag_size(frag) and use it when needed. Signed-off-by: NPetri Gynther <pgynther@google.com> Acked-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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