- 12 Aug, 2016 3 commits
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Appana Durga Kedareswara Rao authored
This patch adds support for gmiitorgmii converter. The GMII to RGMII IP core provides the Reduced Gigabit Media Independent Interface (RGMII) between Ethernet physical media Devices and the Gigabit Ethernet controller. This core can Switch dynamically between the three different speed modes of Operation by configuring the converter register through mdio write. MDIO interface is used to set operating speed of Ethernet MAC. This converter sits between the MAC and the external phy MAC <==> GMII2RGMII <==> RGMII_PHY Signed-off-by:
Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Appana Durga Kedareswara Rao authored
Device-tree binding documentation for xilinx gmiitorgmii converter. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Appana Durga Kedareswara Rao authored
This patch adds mask for the Control register 10Mbps speed. Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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- 11 Aug, 2016 23 commits
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by:Philippe Reynes <tremyfr@gmail.com> Tested-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
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Philippe Reynes authored
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phy_dev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by:
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Adam Barth authored
The commit 555c8a86 ("bpf: avoid stack copy and use skb ctx for event output") started using 20 of initially reserved upper 32-bits of 'flags' argument in bpf_perf_event_output(). Adjust corresponding prototype in samples/bpf/bpf_helpers.h Signed-off-by:
Adam Barth <arb@fb.com> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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Harini Katakam authored
This patch adds support for 64 bit addressing and BDs. -> Enable 64 bit addressing in DMACFG register. -> Set DMA mask when design config register shows support for 64 bit addr. -> Add new BD words for higher address when 64 bit DMA support is present. -> Add and update TBQPH and RBQPH for MSB of BD pointers. -> Change extraction and updation of buffer addresses to use 64 bit address. -> In gem_rx extract address in one place insted of two and use a separate flag for RXUSED. Signed-off-by:
Harini Katakam <harinik@xilinx.com> Signed-off-by:
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Sudarsana Reddy Kalluru authored
This patch adds the driver implementation for ethtool link_ksettings callbacks. qed driver now defines/uses the qed specific masks for representing link capability values. qede driver maps these values to to new link modes defined by the kernel implementation of link_ksettings. Please consider applying this to 'net-next' branch. Signed-off-by:
Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> Signed-off-by:
Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by:
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David S. Miller authored
Ivan Khoronzhuk says: ==================== net: ethernet: ti: cpsw: split driver data and per ndev data In dual_emac mode the driver can handle 2 network devices. Each of them can use its own private data and common data/resources. This patchset splits common driver data/resources and private per net device data. It leads to: - reduce memory usage - increase code readability - allows add a bunch of simplification - create prerequisites to add multi-channel support, when channels are shared between net devices Doesn't have bad impact on performance. v2: https://lkml.org/lkml/2016/8/6/108 Since v2: - removed patch: net: ethernet: ti: cpsw: fix int dbg message - replaced patch: "net: ethernet: ti: cpsw: remove redundant check in napi poll" on "net: ethernet: ti: cpsw: remove intr dbg msg from poll handlers" - removed macro "cpsw_get_slave_ndev" - corrected some commits Since v1: - added several patch improvements - avoided variable reordering in structures - removed static variable for common function - split big patch on several patches: ==================== Signed-off-by:
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Ivan Khoronzhuk authored
The ale, cpts, version, rx_packet_max, bus_freq, interrupt pacing parameters are common per net device that uses the same h/w. So, move them to common driver structure. Signed-off-by:
Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Reviewed-by:
Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by:
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Ivan Khoronzhuk authored
The napi structs are common for both net devices in dual_emac mode, In order to not hold duplicate links to them, move to cpsw_common. Signed-off-by:
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Ivan Khoronzhuk authored
These data are common for net devs in dual_emac mode. No need to hold it for every priv instance, so move them under cpsw_common. Signed-off-by:
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Ivan Khoronzhuk authored
The irq data are common for net devs in dual_emac mode. So no need to hold these data in every priv struct, move them under cpsw_common. Also delete irq_num var, as after optimization it's not needed. Correct number of irqs to 2, as anyway, driver is using only 2, at least for now. Signed-off-by:
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Ivan Khoronzhuk authored
Every net device private struct holds links to shared cpdma resources. No need to save and every time synchronize these resources per net dev. So, move it to common driver struct. Signed-off-by:
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Ivan Khoronzhuk authored
The pointers on h/w registers are common for every cpsw_private instance, so no need to hold them for every ndev. Signed-off-by:
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Ivan Khoronzhuk authored
No need to hold pdev link when only dev is needed. This allows to simplify a bunch of cpsw->pdev->dev now and farther. Signed-off-by:
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Ivan Khoronzhuk authored
This patch simply create holder for common data and as a start moves pdev var to it. Signed-off-by:
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Ivan Khoronzhuk authored
No need to check const slave num in runtime for every packet, and ndev for slaves w/o ndev is anyway NULL. So remove redundant check and macro. Reviewed-by:
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Ivan Khoronzhuk authored
There is no need to hold link to clk, it's used only once while probe. Reviewed-by:
Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by:
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Ivan Khoronzhuk authored
There is no need in priv here. Reviewed-by:
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Ivan Khoronzhuk authored
At poll handler no possibility to figure out which network device is handling packets, as cpdma channels are common for both network devices in dual_emac mode. Currently, the messages are printed only for one device, in fact, there is two. This print msg is incorrect and seems is not very useful, so drop it from poll handler. Reviewed-by:
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Ivan Khoronzhuk authored
As second net dev is created only in case of dual_emac mode, port number can be figured out in simpler way. Also no need to pass redundant ndev struct. Reviewed-by:
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Gao Feng authored
The PPTP is encapsulated by GRE header with that GRE_VERSION bits must contain one. But current GRE RPS needs the GRE_VERSION must be zero. So RPS does not work for PPTP traffic. In my test environment, there are four MIPS cores, and all traffic are passed through by PPTP. As a result, only one core is 100% busy while other three cores are very idle. After this patch, the usage of four cores are balanced well. Signed-off-by:
Gao Feng <fgao@ikuai8.com> Reviewed-by:
Philip Prindeville <philipp@redfish-solutions.com> Signed-off-by:
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David S. Miller authored
Jiri Kosina says: ==================== Convert qdisc linked list into a hashtable This is a respin of the v6 of the original patch [1], split into two-patch series as requested by davem; first patch fixes all symbol conflicts that'd happen once netdevice.h starts to include hashtable.h, the second one performs the actual switch to hashtable. I've preserved Cong's Reviewed-by:, as code-wise this series is identical to the original v6 of the patch. [1] lkml.kernel.org/r/alpine.LNX.2.00.1608011220580.22028@cbobk.fhfr.pm ==================== Signed-off-by: -
Jiri Kosina authored
Convert the per-device linked list into a hashtable. The primary motivation for this change is that currently, we're not tracking all the qdiscs in hierarchy (e.g. excluding default qdiscs), as the lookup performed over the linked list by qdisc_match_from_root() is rather expensive. The ultimate goal is to get rid of hidden qdiscs completely, which will bring much more determinism in user experience. Reviewed-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
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Jiri Kosina authored
This is a preparatory patch for converting qdisc linked list into a hashtable. As we'll need to include hashtable.h in netdevice.h, we first have to make sure that this will not introduce symbol conflicts for any of the netdevice.h users. Reviewed-by:
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- 10 Aug, 2016 2 commits
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Niklas Söderlund authored
The patch 'ravb: add sleep PM suspend/resume support' used incorrect function names containing 'runtime' for the suspend and resume functions. Reported-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by:
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by:
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Uwe Kleine-König authored
ic_close_devs() calls kfree() for all devices's ic_device. Since commit 2647cffb ("net: ipconfig: Support using "delayed" DHCP replies") the active device's ic_device is still used however to print the ipconfig summary which results in an oops if the memory is already changed. So delay freeing until after the autoconfig results are reported. Fixes: 2647cffb ("net: ipconfig: Support using "delayed" DHCP replies") Reported-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tested-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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- 09 Aug, 2016 4 commits
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Niklas Söderlund authored
The interface would not function after the system had been woken up after have been suspended (echo mem > /sys/power/state) cycle. The reason for this is that all device registers have been reset to its default values. This patch adds sleep suspend and resume functions that detached the interface at suspend and restore the registers and reattach the interface at resume. Only the registers that are only configured at probe time needs to be explicitly restored by the resume handler. All other registers are reconfigured by either reopening the device in the resume handler (if the device was running when the system was suspended) or when the interface is opened by a user at a later time. Signed-off-by:
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Julia Lawall authored
The b53_io_ops structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Acked-by:
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David Ahern authored
After commit 0ddcf43d ("ipv4: FIB Local/MAIN table collapse") fib_local is set but not used. Remove it. Signed-off-by:
David Ahern <dsa@cumulusnetworks.com> Signed-off-by:
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Guillaume Nault authored
Userspace programs generally need to know the name of the ppp devices they create. Both ioctl and rtnl interfaces use the ppp<suffix> sheme to name them. But although the suffix used by the ioctl interface can be known by userspace (it's the PPP unit identifier returned by the PPPIOCGUNIT ioctl), the one used by the rtnl is only known by the kernel. This patch brings more consistency between ioctl and rtnl based ppp devices by generating device names using the PPP unit identifer as suffix in both cases. This way, userspace can always infer the name of the devices they create. Signed-off-by:
Guillaume Nault <g.nault@alphalink.fr> Signed-off-by:
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- 08 Aug, 2016 8 commits
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Nicolas Iooss authored
This is helpful to detect at compile-time errors related to format strings. Signed-off-by:
Nicolas Iooss <nicolas.iooss_linux@m4x.org> Acked-by:
Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by:
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Raju Lakkaraju authored
Hello, I added all review comments and re-sending for review. >From a5017f5878a92d2acec86a6a29b1498c457cb73a Mon Sep 17 00:00:00 2001 From: Nagaraju Lakkaraju <Raju.Lakkaraju@microsemi.com> Date: Wed, 3 Aug 2016 18:28:24 +0530 Subject: [PATCH v2] net: phy: Add drivers for Microsemi PHYs Signed-off-by:
Nagaraju Lakkaraju <Raju.Lakkaraju@microsemi.com> Signed-off-by:
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Julia Lawall authored
Use of_property_read_bool to check for the existence of a property. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e1,e2,x; @@ - if (of_get_property(e1,e2,NULL)) - x = true; - else - x = false; + x = of_property_read_bool(e1,e2); // </smpl> Signed-off-by:
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Haiyang Zhang authored
On Hyper-V host 2016 and later, VMs gets an event message of the physical link speed when vSwitch is changed. This patch handles this message, so the updated link speed can be reported by ethtool. Signed-off-by:
Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
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Haiyang Zhang authored
The physical link speed value will be reported by ethtool command. The real speed is available from Windows 2016 host or later. Signed-off-by:
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Grygorii Strashko authored
The struct cpdma_desc_pool->used_desc field can be safely removed from CPDMA driver (and hot patch) because used_descs counter is used just for pool consistency check at CPDMA deinitialization and now this check can be re-implemnted using gen_pool_size(pool->gen_pool) != gen_pool_avail(pool->gen_pool). More over, this will allow to get rid of warnings in cpdma_desc_pool_destro()-> WARN_ON(pool->used_desc) which may happen because the used_descs is used unprotected, since CPDMA has been switched to use genalloc, and may get wrong values on SMP. Hence, remove used_desc from struct cpdma_desc_pool. Signed-off-by:
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Michal Soltys authored
The code using this variable has been commented out in the past as it was causing issues in upperlimited link-sharing scenarios. Signed-off-by:
Michal Soltys <soltys@ziu.info> Signed-off-by:
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Michal Soltys authored
This patch simplifies how we update fsc and calculate vt from it - while keeping the expected functionality identical with how hfsc behaves curently. It also fixes a certain issue introduced with a very old patch. The idea is, that instead of correcting cl_vt before fsc curve update (rtsc_min) and correcting cl_vt after calculation (rtsc_y2x) to keep cl_vt local to the current period - we can simply rely on virtual times and curve values always being in sync - analogously to how rsc and usc function, except that we use virtual time here. Why hasn't it been done since the beginning this way ? The likely scenario (basing on the code trying to correct curves whenever possible) was to keep the virtual times as small as possible - as they have tendency to "gallop" forward whenever their siblings and other fair sharing subtrees are idling. On top of that, current code is subtly bugged, so cumulative time (without any corrections) is always kept and used in init_vf() when a new backlog period begins (using cl_cvtoff). Is cumulative value safe ? Generally yes, though corner cases are easy to create. For example consider: 1gbit interface some 100kbit leaf, everything else idle With current tick (64ns) 1s is 15625000 ticks, but the leaf is alone and it's virtual time, so in reality it's 10000 times more. ITOW 38 bits are needed to hold 1 second. 54 - 1 day, 59 - 1 month, 63 - 1 year (all logarithms rounded up). It's getting somewhat dangerous, but also requires setup excusing this kind of values not mentioning permanently backlogged class for a year. In near most extreme case (10gbit, 10kbit leaf), we have "enough" to hold ~13.6 days in 64 bits. Well, the issue remains mostly theoretical and cl_cvtoff has been working fine for all those years. Sensible configuration are de-facto immune to this issue, and not so sensible can solve it with a cronjob and its period inversely proportional to the insanity of such setup =) Now let's explain the subtle bug mentioned earlier. The issue is related to how offsets are kept and how we calculate virtual times and update fair service curve(s). The issue itself is subtle, but easy to observe with long m1 segments. It was introduced in rather old patch: Commit 99296150: "[NET_SCHED]: O(1) children vtoff adjustment in HFSC scheduler" (available in git://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git) Originally when a new backlog period was started, cl_vtoff of each sibling was updated with cl_cvtmax from past period - naturally moving all cl_vt to proper starting point. That patch adjusted it so cumulative offset is kept in the parent, and there is no need for traversing the list (as any subsequent child activation derives new vt from already active sibling(s)). But with this change, cl_vtoff (of each sibling) is no longer persistent across the inactivity periods, as it's calculated from parent's cl_cvtoff on a new backlog period, conflicting with the following curve correction from the previous period: if (cl->cl_virtual.x == vt) { cl->cl_virtual.x -= cl->cl_vtoff; cl->cl_vtoff = 0; } This essentially tries to keep curve as if it was local to the period and resets cl_vtoff (cumulative vt offset of the class) to 0 when possible (read: when we have an intersection or if a new curve is below the old one). But then it's recalculated from cl_cvtoff on next active period. Then rtsc_min() call preceding the above if() doesn't really do what we expect it to do in such scenario - as it calculates the minimum of corrected curve (from the previous backlog period) and the new uncorrected curve (with offset derived from cl_cvtoff). Example: tc class add dev $ife parent 1:0 classid 1:1 hfsc ls m2 100mbit ul m2 100mbit tc class add dev $ife parent 1:1 classid 1:10 hfsc ls m1 80mbit d 10s m2 20mbit tc class add dev $ife parent 1:1 classid 1:11 hfsc ls m2 20mbit start B, keep it backlogged, let it run 6s (30s worth of vt as A is idle) pause B briefly to force cl_cvtoff update in parent (whole 1:1 going idle) start A, let it run 10s pause A briefly to force rtsc_min() At this point we would expect A to continue at 20mbit after a brief moment of 80mbit. But instead A will use 80mbit for full 10s again. It's the effect of first correcting A (during 'start A'), and then - after unpausing - calculating rtsc_min() from old corrected and new uncorrected curve. The patch fixes this bug and keepis vt and fsc in sync (virtual times are cumulative, not local to the backlog period). Signed-off-by:
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