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* net: fec: Rename "phy-reset-active-low" propertyBernhard Walle2016-03-071-4/+4
| | | | | | | | | | | | is actually "active high". Thanks for Troy Kisky for pointing that out. Since the patch is in linux-next, this patch is incremental and doesn't replace the original patch. Signed-off-by: Bernhard Walle <bernhard@bwalle.de> Acked-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* stmmac: fix noderef.cocci warningsWu Fengguang2016-03-071-1/+1
| | | | | | | | | | | | | drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c:115:15-21: ERROR: application of sizeof to pointer sizeof when applied to a pointer typed expression gives the size of the pointer Generated by: scripts/coccinelle/misc/noderef.cocci CC: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mac80211_hwsim: use reset to set mac headerZhang Shengju2016-03-051-2/+2
| | | | | | | | | Since offset is zero, it's not necessary to use set function. Reset function is straightforward, and will remove the unnecessary add operation in set function. Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* vxlan: use reset to set header pointersZhang Shengju2016-03-051-3/+3
| | | | | | | | | Since offset is zero, it's not necessary to use set function. Reset function is straightforward, and will remove the unnecessary add operation in set function. Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drm/vmwgfx: remove userland definition of DIV_ROUND_UPNicolas Dichtel2016-03-041-9/+11
| | | | | | | Let's use __KERNEL_DIV_ROUND_UP, which is defined in uapi/linux/kernel.h. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4i: don't redefine DIV_ROUND_UPNicolas Dichtel2016-03-041-1/+1
| | | | | | | | | | | | | | | | | | let's use the common definition to avoid the following warning during the compilation: drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:161:0: warning: "DIV_ROUND_UP" redefined #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) ^ In file included from include/linux/list.h:8:0, from include/linux/module.h:9, from drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:16: include/linux/kernel.h:67:0: note: this is the location of the previous definition #define DIV_ROUND_UP __KERNEL_DIV_ROUND_UP ^ Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ezchip: adapt driver to little endian architectureLada Trimasova2016-03-032-332/+238
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since ezchip network driver is written with big endian EZChip platform it is necessary to add support for little endian architecture. The first issue is that the order of the bits in a bit field is implementation specific. So all the bit fields are removed. Named constants are used to access necessary fields. And the second one is that network byte order is big endian. For example, data on ethernet is transmitted with most-significant octet (byte) first. So in case of little endian architecture it is important to swap data byte order when we read it from register. In case of unaligned access we can use "get_unaligned_be32" and in other case we can use function "ioread32_rep" which reads all data from register and works either with little endian or big endian architecture. And then when we are going to write data to register we need to restore byte order using the function "put_unaligned_be32" in case of unaligned access and in other case "iowrite32_rep". The last little fix is a space between type and pointer to observe coding style. Signed-off-by: Lada Trimasova <ltrimas@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Cc: Noam Camus <noamc@ezchip.com> Cc: Tal Zilcer <talz@ezchip.com> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* sh_eth, ravb: Use ARCH_RENESASSimon Horman2016-03-031-2/+2
| | | | | | | | | | | | Make use of ARCH_RENESAS in place of ARCH_SHMOBILE. This is part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mellanox: add DEVLINK dependenciesArnd Bergmann2016-03-033-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new NET_DEVLINK infrastructure can be a loadable module, but the drivers using it might be built-in, which causes link errors like: drivers/net/built-in.o: In function `mlx4_load_one': :(.text+0x2fbfda): undefined reference to `devlink_port_register' :(.text+0x2fc084): undefined reference to `devlink_port_unregister' drivers/net/built-in.o: In function `mlxsw_sx_port_remove': :(.text+0x33a03a): undefined reference to `devlink_port_type_clear' :(.text+0x33a04e): undefined reference to `devlink_port_unregister' There are multiple ways to avoid this: a) add 'depends on NET_DEVLINK || !NET_DEVLINK' dependencies for each user b) use 'select NET_DEVLINK' from each driver that uses it and hide the symbol in Kconfig. c) make NET_DEVLINK a 'bool' option so we don't have to list it as a dependency, and rely on the APIs to be stubbed out when it is disabled d) use IS_REACHABLE() rather than IS_ENABLED() to check for NET_DEVLINK in include/net/devlink.h This implements a variation of approach a) by adding an intermediate symbol that drivers can depend on, and changes the three drivers using it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 09d4d087cd48 ("mlx4: Implement devlink interface") Fixes: c4745500e988 ("mlxsw: Implement devlink interface") Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-upstream' of ↵David S. Miller2016-03-0312-12/+396
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2016-03-01 Here's our main set of Bluetooth & 802.15.4 patches for the 4.6 kernel. - New Bluetooth HCI driver for Intel/AG6xx controllers - New Broadcom ACPI IDs - LED trigger support for indicating Bluetooth powered state - Various fixes in mac802154, 6lowpan and related drivers - New USB IDs for AR3012 Bluetooth controllers Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * Bluetooth: hci_uart: Add diag and address support for Intel/AG6xxMarcel Holtmann2016-02-291-1/+12
| | | | | | | | | | | | | | | | | | The AG6xx devices behave similar to Wilkens Peak and Stone Peak and with that it is needed to check for Intel default address. In addition it is possible to enable vendor events and diag support. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
| * Bluetooth: btusb: Add a new AR3012 ID 04ca:3014Dmitry Tunin2016-02-282-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | T: Bus=01 Lev=01 Prnt=01 Port=04 Cnt=03 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=04ca ProdID=3014 Rev=00.02 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/1546694 Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: stable@vger.kernel.org
| * 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>
| * 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/+3
| | | | | | | | | | | | | | | | | | 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>
| * 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: 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>
* | 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/+0
| | | | | | | | | | | | | | | | 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>
* | cxgb4vf: Remove dead functions collect_netdev_[um]c_list_addrsHariprasad Shenai2016-03-021-46/+0
| | | | | | | | | | 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/+0
| | | | | | | | | | | | | | | | 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>
* | 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/+1
| | | | | | | | | | | | | | | | | | | | 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/+16
| | | | | | | | | | | | | | | | | | | | | | | | 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/+111
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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/+355
| | | | | | | | | | | | | | | | | | | | 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 Cavallaro2016-03-028-44/+156
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | qed: Remove unused NVM vendor IDYuval Mintz2016-03-022-10/+0
| | | | | | | | | | | | | | Remove 2 unused fields from driver code. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | qed: Fix error flow on slowpath startYuval Mintz2016-03-023-44/+64
| | | | | | | | | | | | | | | | | | | | | | In case of problems when initializing the chip, the error flows aren't being properly done. Specifically, it's possible that the chip would be left in a configuration allowing it [internally] to access the host memory, causing fatal problems in the device that would require power cycle to overcome. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | qed: Move statistics to L2 codeYuval Mintz2016-03-023-245/+324
| | | | | | | | | | | | | | | | Current statistics logic is meant for L2, not for all future protocols. Move this content to the proper designated file. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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