summaryrefslogtreecommitdiffstats
Commit message (Collapse)AuthorAgeFilesLines
...
| * Bluetooth: hci_uart: Add Intel/AG6xx supportLoic Poulain2016-02-245-1/+351
| | | | | | | | | | | | | | | | | | | | This driver implements support for iBT2.1 Bluetooth controller embedded in the AG620 communication combo. The controller needs to be configured with bddata and can be patched with a binary patch file (pbn). These operations are performed in manufacturing mode. Signed-off-by: Loic Poulain <loic.poulain@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * 6lowpan: fix error checking codeAndrzej Hajda2016-02-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Bool variable 'fail' is always non-negative, it indicates an error if it is true. The problem has been detected using coccinelle script scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * 6lowpan: iphc: fix stateful multicast compressionAlexander Aring2016-02-241-1/+2
| | | | | | | | | | | | | | | | | | In case of multicast address we need to set always the LOWPAN_IPHC_M bit and if a destination context identifier was found for a multicast address then we need to set the LOWPAN_IPHC_DAC as well. Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * ieee802154: 6lowpan: fix return of netdev notifierAlexander Aring2016-02-231-4/+3Star
| | | | | | | | | | | | | | | | | | | | This patch fixed the return value of netdev notifier. If the command is a don't care a NOTIFY_DONE should be returned. If the command matched a NOTIFY_OK should be returned. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * 6lowpan: iphc: add support for stateful compressionAlexander Aring2016-02-234-58/+674
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduce support for IPHC stateful address compression. It will offer the context table via one debugfs entry. This debugfs has and directory for each cid entry for the context table. Inside each cid directory there exists the following files: - "active": If the entry is added or deleted. The context table is original a list implementation, this flag will indicate if the context is part of list or not. - "prefix": The ipv6 prefix. - "prefix_length": The prefix length for the prefix. - "compression": The compression flag according RFC6775. This part should be moved into sysfs after some testing time. Also the debugfs entry contains a "show" file which is a pretty-printout for the current context table information. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: Fixes kernel oops when unloading a radio driverKoen Zandberg2016-02-231-1/+1
| | | | | | | | | | | | | | | | | | Destroying the workqueue before unregistering the net device caused a kernel oops Signed-off-by: Koen Zandberg <koen@bergzand.net> Acked-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mrf24j40: add writeable missing regAlexander Aring2016-02-231-0/+1
| | | | | | | | | | | | | | | | This patch adds a missing reg for writeable stuff for regmap. Cc: Alan Ott <alan@signal11.us> Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * at86rf230: fix state change handling on errorAlexander Aring2016-02-231-4/+3Star
| | | | | | | | | | | | | | | | | | This patch force always to set "is_tx_from_off", when calibration timeout was not occurred. In case of error handling the is_tx_from_off can be inside in an invalid state. Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * at86rf230: fix race on error handlingAlexander Aring2016-02-231-4/+14
| | | | | | | | | | | | | | | | | | The resource "ctx" can be still used by at86rf230_async_state_change, we need to free it at the complete handler of the async state change to avoid a use after free. Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: fix mac header length checkAlexander Aring2016-02-231-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | I got report about that sometimes the WARN_ON occurs there which should never happen. I came to the conclusion that the mac header is there but inside the headroom of skb. The skb->len information doesn't contain the information about the headroom length and skb->len is lesser than two. We check now if the skb_mac_header pointer is set and the room between mac header pointer and tail pointer. Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * MAINTAINERS: update 802.15.4 entriesAlexander Aring2016-02-231-4/+5
| | | | | | | | | | | | | | | | This patch updates my e-mail address and other pending information for 802.15.4 subsystem which are not correct anymore. Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: hci_core: cancel power off delayed work properlyWei-Ning Huang2016-02-231-0/+1
| | | | | | | | | | | | | | | | When the HCI_AUTO_OFF flag is cleared, the power_off delayed work need to be cancel or HCI will be powered off even if it's managed. Signed-off-by: Wei-Ning Huang <wnhuang@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Add new AR3012 ID 0489:e095Dmitry Tunin2016-02-232-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | T: Bus=01 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e095 Rev=00.01 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb This device requires ar3k/AthrBT_0x31010100.dfu and ar3k/ramps_0x31010100_40.dfu firmware files that are not in linux-firmware yet. BugLink: https://bugs.launchpad.net/bugs/1542944 Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: stable@vger.kernel.org
| * Bluetooth: btbcm: Fix handling of firmware not foundPetri Gynther2016-02-231-1/+2
| | | | | | | | | | | | | | | | | | | | | | If the call to request_firmware() fails in btbcm_setup_patchram(), the BCM chip will be operating with its default firmware. In this case, btbcm_setup_patchram() should not return immediately but instead should skip to btbcm_check_bdaddr() and quirk setup. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: hci_bcm: Add BCM2E7C ACPI IDMika Westerberg2016-02-231-0/+1
| | | | | | | | | | | | | | | | | | Recent macbooks (early 2015) with BCM43241 use this ACPI ID. Add it to the list of supported devices. Reported-by: Leif Liddy <leif.liddy@gmail.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: hci_bcm: Add new ACPI ID for bcm43241J.J. Meijer2016-02-231-0/+1
| | | | | | | | | | | | | | This ACPI ID is used at least by HP for their Omni 10 5600eg tablet. Signed-off-by: J.J. Meijer <jjmeijer88@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: btusb: Add new AR3012 ID 13d3:3395Dmitry Tunin2016-02-232-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | T: Bus=03 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3395 Rev=00.01 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb BugLink: https://bugs.launchpad.net/bugs/1542564 Reported-and-tested-by: Christopher Simerly <kilikopela29@gmail.com> Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: stable@vger.kernel.org
| * Bluetooth: hci_intel: Fix a wrong comparisonAnton Protopopov2016-02-231-2/+2
| | | | | | | | | | | | | | | | A return value of the intel_wait_booting() function compared with a constant ETIMEDOUT instead of -ETIMEDOUT. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: Use managed version of led_trigger_register in LED triggerHeiner Kallweit2016-02-233-11/+1Star
| | | | | | | | | | | | | | | | Recently a managed version of led_trigger_register was introduced. Using devm_led_trigger_register allows to simplify the LED trigger code. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: ath3k: Fixed a blank line after declaration issueBhumika Goyal2016-02-231-0/+1
| | | | | | | | | | | | | | Fixed a coding style issue. Added a blank link after declaration. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * Bluetooth: add LED trigger for indicating HCI is powered upHeiner Kallweit2016-02-236-0/+119
| | | | | | | | | | | | | | | | | | | | Add support for LED triggers to the Bluetooth subsystem and add kernel config symbol BT_LEDS for it. For now one trigger for indicating "HCI is powered up" is supported. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* | net: relax setup_tc ndo op handle restrictionJohn Fastabend2016-03-038-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I added this check in setup_tc to multiple drivers, if (handle != TC_H_ROOT || tc->type != TC_SETUP_MQPRIO) Unfortunately restricting to TC_H_ROOT like this breaks the old instantiation of mqprio to setup a hardware qdisc. This patch relaxes the test to only check the type to make it equivalent to the check before I broke it. With this the old instantiation continues to work. A good smoke test is to setup mqprio with, # tc qdisc add dev eth4 root mqprio num_tc 8 \ map 0 1 2 3 4 5 6 7 \ queues 0@0 1@1 2@2 3@3 4@4 5@5 6@6 7@7 Fixes: e4c6734eaab9 ("net: rework ndo tc op to consume additional qdisc handle paramete") Reported-by: Singh Krishneil <krishneil.k.singh@intel.com> Reported-by: Jake Keller <jacob.e.keller@intel.com> CC: Murali Karicheri <m-karicheri2@ti.com> CC: Shradha Shah <sshah@solarflare.com> CC: Or Gerlitz <ogerlitz@mellanox.com> CC: Ariel Elior <ariel.elior@qlogic.com> CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: Bruce Allan <bruce.w.allan@intel.com> CC: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ethernet/atl1c: remove left over dead codeEric Engestrom2016-03-021-4/+0Star
| | | | | | | | | | | | | | | | Left over from c24588afc536a35c924d014f13b669b20ccf8553 ("atl1c: using fixed TXQ configuration for l2cb and l1c") Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/ipv4: remove left over dead codeEric Engestrom2016-03-021-7/+0Star
| | | | | | | | | | | | | | | | | | 8cc785f6f429c2a3fb81745dc142cbd72a462c4a ("net: ipv4: make the ping /proc code AF-independent") removed the code using it, but renamed this variable instead of removing it. Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/rtnetlink: remove dead codeEric Engestrom2016-03-021-9/+0Star
| | | | | | | | | | | | | | | | | | 3b766cd832328fcb87db3507e7b98cf42f21689d ("net/core: Add reading VF statistics through the PF netdevice") added that variable but it's never been used. Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'cxgb4-next'David S. Miller2016-03-026-97/+85Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hariprasad Shenai says: ==================== cxgb4/cxgb4vf: Cleanup and minor fixes This series sets FBMIN to 64 bytes for Chelsio's T6 series of adapters, check to replenish fl is revised, some code cleanup in cxgb4vf sge initialization code and removes dead code. This patch series has been created against net-next tree and includes patches on cxgb4 and cxgb4vf driver. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. ====================
| * | cxgb4vf: Remove dead functions collect_netdev_[um]c_list_addrsHariprasad Shenai2016-03-021-46/+0Star
| | | | | | | | | | | | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | cxgb4vf: Remove redundant adapter ready check during probeHariprasad Shenai2016-03-021-10/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | Function t4vf_wait_dev_ready() is already called in t4vf_prep_adapter(), no need to call it again in adap_init0(). Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | cxgb4vf: Make sge init code more readableHariprasad Shenai2016-03-023-37/+59
| | | | | | | | | | | | | | | | | | | | | | | | Adds a new function t4vf_fl_pkt_align() and use the same in SGE initialization code to find out freelist packet alignment Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | cxgb4/cxgb4vf: For T6 adapter, set FBMIN to 64 bytesHariprasad Shenai2016-03-023-2/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | T4 and T5 hardware will not coalesce Free List PCI-E Fetch Requests if the Host Driver provides more Free List Pointers than the Fetch Burst Minimum value. So if we set FBMIN to 64 bytes and the Host Driver supplies 128 bytes of Free List Pointer data, the hardware will issue two 64-byte PCI-E Fetch Requests rather than a single coallesced 128-byte Fetch Request. T6 fixes this. So, for T4/T5 we set the FBMIN value to 128 Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | cxgb4/cxgb4vf: Use fl capacity to check if fl needs to be replenishedHariprasad Shenai2016-03-022-2/+2
|/ / | | | | | | | | | | | | | | Use freelist capacity instead of freelist size while checking, if freelist needs to be refilled Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'stmmac-optimizations'David S. Miller2016-03-0220-712/+1016
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Alexandre TORGUE says: ==================== stmmac: enhance driver performances and update the version According to Giuseppe, I send the v3 series. This is a subset of patches to rework the driver in order to improve its performances and make it more robust under stress conditions. All patches have been ported on STi mainstream kernel branch and tested on ARM STiH4xx platforms and newer ones. This series also updates the driver version and prepares it to include further development to support new chips. In detail, these patches are: o to rework and improve the internal DMA bus settings Fine tuning is mandatory on some platforms for both performance and stability issues. o to rework and optimize the descriptor management. This will help a lot on performance side and preparing the inclusion on the GMAC4.x. o to add a set of optimizations for both xmit and rx functions. These will help a lot on performance side and making the driver more robust in case of low memory conditions and under some stress test, performed for example on IP-STB. Below some throughput figures obtained on some boxes before and after the patches. nuttcp (mbps) iperf (Mbps) ------------------------------------------------------------------ tcp udp tcp udp tx rx tx rx tx rx tx rx ------------------------------------------ old 680 800 480 506 760 800 600 700 new 830 880 540 630 840 880 700 800 V2: - rx_copybreak is now managed by using ethtool. V3: - improve comments on PCIe detailing that there are no regressions - rework some APIs to properly define some params as bool as expected - rework the formula to get the element inside the ring. Comparing V2, patches 4 and 13 have been merged because the same formula have been used. After this rework, no evident benefit has been noticed in terms of performances so the table above is still valid. Disassembling the code for SH4 and ARM, with the new formula just an instr is saved (depending on compiler flags) and this gives us not so relevanti gain, for example, on SH4 where some instr are executed in the same pipeline stage. Ring sizes are now fixed and maybe they can be reworked to be tuned w/o using stmmaceth= cmdline option. Indeed, nobody change these sizes and indeed the numbers selected by default respect the budget and avoid to pass invalid setup. These are the best driver default sizes for ring and chain. ====================
| * | stmmac: update version to Oct_2015Giuseppe Cavallaro2016-03-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch just updates the driver to the version fully tested on STi platforms. This version is Oct_2015. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: tune rx copy via threshold.Giuseppe Cavallaro2016-03-022-2/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a threshold now used to also limit the skb allocation when use zero-copy. This is to avoid that there are incoherence in the ring due to a failure on skb allocation under very aggressive testing and under low memory conditions. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: do not perform zero-copy for rx framesGiuseppe Cavallaro2016-03-023-15/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is to allow this driver to copy tiny frames during the reception process. This is giving more stability while stressing the driver on STi embedded systems. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: fix phy init when attached to a phyFabrice Gasnier2016-03-021-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | phy_bus_name can be NULL when "fixed-link" property isn't used. Then, since "stmmac: do not poll phy handler when attach a switch", phy_bus_name ptr needs to be checked before strcmp is called. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: do not poll phy handler when attach a switchGiuseppe Cavallaro2016-03-021-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch avoids to call the stmmac_adjust_link when the driver is connected to a switch by using the FIXED_PHY support. Prior this patch the phydev->irq was set as PHY_POLL so periodically the phy handler was invoked spending useless time because the link cannot actually change. Note that the stmmac_adjust_link will be called just one time and this guarantees that the ST glue logic will be setup according to the mode and speed fixed. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: first frame prep at the end of xmit routineGiuseppe Cavallaro2016-03-026-78/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is to fill the first descriptor just before granting the DMA engine so at the end of the xmit. The patch takes care about the algorithm adopted to mitigate the interrupts, then it fixes the last segment in case of no fragments. Moreover, this new implementation does not pass any "ter" field when prepare the descriptors because this is not necessary. The patch also details the memory barrier in the xmit. As final results, this patch guarantees the same performances but fixing a case if small datagram are sent. In fact, this kind of test is impacted if no coalesce is done. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: set dirty index out of the loopGiuseppe Cavallaro2016-03-021-4/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dirty index can be updated out of the loop where all the tx resources are claimed. This will help on performances too. Also a useless debug printk has been removed from the main loop. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: optimize tx clean functionFabrice Gasnier2016-03-024-18/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch "inline" get_tx_owner and get_ls routines. It Results in a unique read to tdes0, instead of three, to check TX_OWN and LS bits, and other status bits. It helps improve driver TX path by removing two uncached read/writes inside TX clean loop for enhanced descriptors but not for normal ones because the des1 must be read in any case. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: optimize tx desc managementGiuseppe Cavallaro2016-03-026-36/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is to optimize the way to manage the TDES inside the xmit function. When prepare the frame, some settings (e.g. OWN bit) can be merged. This has been reworked to improve the tx performances. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: merge get_rx_owner into rx_status routine.Fabrice Gasnier2016-03-024-21/+16Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RDES0 register can be read several times while doing RX of a packet. This patch slightly improves RX path performance by reading rdes0 once for two operation: check rx owner, get rx status bits. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: add is_jumbo field to dma dataGiuseppe Cavallaro2016-03-024-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Optimize tx_clean by avoiding a des3 read in stmmac_clean_desc3(). In ring mode, TX, des3 seems only used when xmit a jumbo frame. In case of normal descriptors, it may also be used for time stamping. Clean it in the above two case, without reading it. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: add last_segment field to dma dataGiuseppe Cavallaro2016-03-023-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | last_segment field is read twice from dma descriptors in stmmac_clean(). Add last_segment to dma data so that this flag is from priv structure in cache instead of memory. It avoids reading twice from memory for each loop in stmmac_clean(). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: add length field to dma dataGiuseppe Cavallaro2016-03-024-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the code pulls out the length field when unmapping a buffer directly from the descriptor. This will result in an uncached read to a dma_alloc_coherent() region. There is no need to do this, so this patch simply puts the value directly into a data structure which will hit the cache. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: review RX/TX ring managementGiuseppe Cavallaro2016-03-025-117/+111Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is to rework the ring management now optimized. The indexes into the ring buffer are always incremented, and the entry is accessed via doing a modulo to find the "real" position in the ring. It is inefficient, modulo is an expensive operation. The formula [(entry + 1) & (size - 1)] is now adopted on a ring that is power-of-2 in size. Then, the number of elements cannot be set by command line but it is fixed. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: change descriptor layoutGiuseppe Cavallaro2016-03-024-363/+355Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch completely changes the descriptor layout to improve the whole performances due to the single read usage of the descriptors in critical paths. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: rework DMA bus setting and introduce new platform AXI structureGiuseppe Cavallaro2016-03-0210-62/+209
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch restructures the DMA bus settings and this is done by introducing a new platform structure used for programming the AXI Bus Mode Register inside the DMA module. This structure can be populated from device-tree as documented in the binding txt file. After initializing the DMA, the AXI register can be optionally tuned for platform drivers based. This patch also reworks some parameters to make coherent the DMA configuration now that AXI register is introduced. For example, the burst_len is managed by using the mentioned axi support above; so the snps,burst-len parameter has been removed. It makes sense to provide the AAL parameter from DT to Address-Aligned Beats inside the Register0 and review the PBL settings when initialize the engine. For PCI glue, rebuilding the story of this setting, it was added to align a configuration so not for fixing some known problem. No issue raised after this patch. It is safe to use the default burst length instead of tuning it to the maximum value Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: share reset function between dwmac100 and dwmac1000Giuseppe Cavallaro2016-03-028-43/+46
|/ / | | | | | | | | | | | | | | | | | | This patch is to share the same reset procedure between dwmac100 and dwmac1000 chips. This will also help on enhancing the driver and support new chips. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'rds-support-FRMR-and-cleanups'David S. Miller2016-03-0227-5035/+1065Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Santosh Shilimkar says: ==================== RDS: Major clean-up with couple of new features for 4.6 v3: Re-generated the same series by omitting "-D" option from git format-patch command. Since first patch has file removals, git apply/am can't deal with it when formated with '-D' option. v2: Dropped module parameter from [PATCH 11/13] as suggested by David Miller Series is generated against net-next but also applies against Linus's tip cleanly. Entire patchset is available at below git tree: git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux.git for_4.6/net-next/rds_v2 The diff-stat looks bit scary since almost ~4K lines of code is getting removed. Brief summary of the series: - Drop the stale iWARP support: RDS iWarp support code has become stale and non testable for sometime. As discussed and agreed earlier on list, am dropping its support for good. If new iWarp user(s) shows up in future, the plan is to adapt existing IB RDMA with special sink case. - RDS gets SO_TIMESTAMP support - Long due RDS maintainer entry gets updated - Some RDS IB code refactoring towards new FastReg Memory registration (FRMR) - Lastly the initial support for FRMR RDS IB RDMA performance with FRMR is not yet as good as FMR and I do have some patches in progress to address that. But they are not ready for 4.6 so I left them out of this series. Also am keeping eye on new CQ API adaptations like other ULPs doing and will try to adapt RDS for the same most likely in 4.7+ timeframe. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-11 20:41:33 +0200