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2017-06-29iwlwifi: mvm: add documentation for all command IDsJohannes Berg4-27/+292
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29iwlwifi: mvm: use __le16 even for reserved fieldsJohannes Berg1-1/+1
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29iwlwifi: mvm: remove various unused command IDs/structsJohannes Berg2-39/+0
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29iwlwifi: mvm: fix various "Excess ... description" kernel-doc warningsJohannes Berg6-13/+10
Fix various "Excess struct/union/enum/typedef member '...' description in '...'" warnings from kernel-doc, mostly caused by typos. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29iwlwifi: mvm: remove some CamelCase from firmware APIJohannes Berg2-3/+3
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29iwlwifi: mvm: Add debugfs entry to retrieve SAR geographic profileHaim Dreyfuss1-0/+50
Add a debugfs entry to get a verbose description of the power settings used in each band with the currently selected SAR geographic profile. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29iwlwifi: mvm: refactor geo initHaim Dreyfuss3-18/+67
We are going to add debugfs entry to retrieve the current geographic profile being used in the FW. Currently the driver reads those tables from the BIOS and passes them to the FW. To prepare for this retrieving we want to store those tables in the driver. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-28mwifiex: fix spelling mistake: "secuirty" -> "security"Colin Ian King1-1/+1
Trivial fix to spelling mistake in mwifiex_dbg message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28wl18xx: add checks on wl18xx_top_reg_write() return valueGustavo A. R. Silva1-2/+4
Check return value from call to wl18xx_top_reg_write(), so in case of error jump to goto label out and return. Also, remove unnecessary value check before goto label out. Addresses-Coverity-ID: 1226938 Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28libertas: Fix lbs_prb_rsp_limit_set()Dan Carpenter1-2/+3
The kstrtoul() test was reversed so this always returned -ENOTSUPP. Fixes: 27d7f47756f4 ("net: wireless: replace strict_strtoul() with kstrtoul()") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: James Cameron <quozl@laptop.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28cw1200: add const to hwbus_ops structuresBhumika Goyal2-2/+2
Declare hwbus_ops structures as const as they are only passed as an argument to the function cw1200_core_probe. This argument is of type const. So, make these structures const. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rsi: add in missing RSI_FSM_STATES into array fsm_stateColin Ian King1-0/+2
Two recent commits added new RSI_FSM_STATES (namely FSM_FW_NOT_LOADED and FSM_COMMON_DEV_PARAMS_SENT) and the corresponding table fsm_state was not updated to match. This can lead to an array overrun when accessing the latter two states in fsm_state. Fix this by adding in the missing states. Detected by CoverityScan, CID#1398379 ("Illegal address computation") Fixes: 9920322ccd8e ("rsi: add tx frame for common device configuration") Fixes: 015e367494c1 ("rsi: Register interrupt handler before firmware load") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28MAINTAINERS: add brcm80211 maintainer info from CypressArend Van Spriel1-0/+3
Since Cypress took over IoT part of Broadcom some chips supported by brcmfmac moved over as well. Adding maintainer info of our peers at Cypress to make their support official. Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Cc: Wright Feng <wright.feng@cypress.com> Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28brcmfmac: rework headroom check in .start_xmit()Arend Van Spriel3-14/+37
Since commit 9cc4b7cb86cb ("brcmfmac: Make skb header writable before use") the headroom usage has been fixed. However, the driver was keeping statistics that got lost. So reworking the code so we get those driver statistics back for debugging. Cc: James Hughes <james.hughes@raspberrypi.org> Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28brcmfmac: use atomic_t for statistic counter in struct brcmf_busArend Van Spriel2-2/+2
The statistic counter is used in common layer and in the bus layer in different thread contexts so change to use atomic operations. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28brcmfmac: cleanup kerneldoc for struct brcmf_busArend Van Spriel1-2/+1
A couple of old fields were still described and one field was not described. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28mwifiex: Do not change bss_type in change_virtual_intfGanapathi Bhat1-4/+0
When user adds a virtual interface driver will set the bss_type to the iface_type given by the user. When supplicant is started on the same interface, a call to change_virtual_intf will be triggered if if_type is not NL80211_IFTYPE_STATION. Here driver should not update it's bss_type, because bss_type is intended to indicate the original iface_type and changing the same will defeat the purpose of creating this interface. Signed-off-by: Ganapathi Bhat <gbhat@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rtlwifi: Add in_4way field for btcoexistPing-Ke Shih2-2/+2
If wifi is in 4way, btcoex give wifi higher priority to use antenna. Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rtlwifi: Fill ap_num field by driverPing-Ke Shih5-0/+123
Check beacon and probe_resp frames to know ap_num Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rtlwifi: Add ap_num field for btcoexistPing-Ke Shih3-4/+4
If there are many AP (dirty environment), we use another strategy set to resolve coex issue. Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rtlwifi: Add return value to btc_set.Ping-Ke Shih1-1/+3
We will use return value to handle error case. Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rtlwifi: Update some cases in btc_get function -- roam, 5G, AP mode, and return value.Ping-Ke Shih1-7/+17
Return value may be false in some situations. Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rtlwifi: Modify power mode parameters of 8723be and 8821ae.Ping-Ke Shih2-4/+4
Change the parameters suggested by FW. awake int: 2 smart_ps: 2 or 0 ps_mode: 2 (MAX -- every DTIM) Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rtlwifi: Do IQK only once to reduce wifi occupy antennaPing-Ke Shih3-4/+9
Modify 8723be and 8192e only. 8812/8821 do IQK in DM, so we may do it later. Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rtlwifi: Fix a2dp choppy while BT RSSI stays on threshold.Ping-Ke Shih4-12/+30
In this case, BTC asks to enter/leave PS mode frequently to cause A2DP choppy. Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28qtnfmac: fix uninitialized return code in retColin Ian King1-1/+1
The return value ret is unitialized and garbage is being returned for the three different error conditions when setting up the PCIe BARs. Fix this by initializing ret to -ENOMEM to indicate that the BARs failed to be setup correctly. Detected by CoverityScan, CID#1437563 ("Unitialized scalar variable") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28ath9k: remove useless variable assignment in ath_mci_intr()Gustavo A. R. Silva1-1/+1
Value assigned to variable offset at line 551 is overwritten at line 562, before it can be used. This makes such variable assignment useless. Addresses-Coverity-ID: 1226941 Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28ath10k: fix a bunch of spelling mistakes in messagesColin Ian King4-5/+5
Fix the following spelling mistakes in messages: syncronise -> synchronize unusally -> unusually addrress -> address inverval -> interval Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28ath9k: Use mutex_lock to avoid potential race in start/stop rngMiaoqing Pan1-4/+4
Move ath9k_rng_stop/ath9k_rng_start pair into critical section, use mutex_lock to void potential race accessing. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28ath9k: avoid potential freezing during random generator readMiaoqing Pan1-1/+5
In the worst case, ath9k_rng_stop() may take 10s to stop rng kthread. The time is too long for users, use wait_event_interruptible_timeout() instead of msleep_interruptible(), wakup immediately once kthread_should_stop() is true. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28ath9k: fix an invalid pointer dereference in ath9k_rng_stop()Miaoqing Pan1-1/+3
The bug was triggered when do suspend/resuming continuously on Dell XPS L322X/0PJHXN version 9333 (2013) with kernel 4.12.0-041200rc4-generic. But can't reproduce on DELL E5440 + AR9300 PCIE chips. The warning is caused by accessing invalid pointer sc->rng_task. sc->rng_task is not be cleared after kthread_stop(sc->rng_task) be called in ath9k_rng_stop(). Because the kthread is stopped before ath9k_rng_kthread() be scheduled. So set sc->rng_task to null after kthread_stop(sc->rng_task) to resolve this issue. WARNING: CPU: 0 PID: 984 at linux/kernel/kthread.c:71 kthread_stop+0xf1/0x100 CPU: 0 PID: 984 Comm: NetworkManager Not tainted 4.12.0-041200rc4-generic #201706042031 Hardware name: Dell Inc. Dell System XPS L322X/0PJHXN, BIOS A09 05/15/2013 task: ffff950170fdda00 task.stack: ffffa22c01538000 RIP: 0010:kthread_stop+0xf1/0x100 RSP: 0018:ffffa22c0153b5b0 EFLAGS: 00010246 RAX: ffffffffa6257800 RBX: ffff950171b79560 RCX: 0000000000000000 RDX: 0000000080000000 RSI: 000000007fffffff RDI: ffff9500ac9a9680 RBP: ffffa22c0153b5c8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffa22c0153b648 R11: ffff9501768004b8 R12: ffff9500ac9a9680 R13: ffff950171b79f70 R14: ffff950171b78780 R15: ffff9501749dc018 FS: 00007f0d6bfd5540(0000) GS:ffff95017f200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc190161a08 CR3: 0000000232906000 CR4: 00000000001406f0 Call Trace: ath9k_rng_stop+0x1a/0x20 [ath9k] ath9k_stop+0x3b/0x1d0 [ath9k] drv_stop+0x33/0xf0 [mac80211] ieee80211_stop_device+0x43/0x50 [mac80211] ieee80211_do_stop+0x4f2/0x810 [mac80211] Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196043 Reported-by: Giulio Genovese <giulio.genovese@gmail.com> Tested-by: Giulio Genovese <giulio.genovese@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28ath10k: add const to thermal_cooling_device_ops structureBhumika Goyal1-1/+1
Declare thermal_cooling_device_ops structure as const as it is only passed as an argument to the function thermal_cooling_device_register and this argument is of type const. So, declare the structure as const. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28ath9k: fix tx99 bus errorMiaoqing Pan1-2/+0
The hard coded register 0x9864 and 0x9924 are invalid for ar9300 chips. Cc: <stable@vger.kernel.org> Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-28ath9k: fix tx99 use after freeMiaoqing Pan1-4/+9
One scenario that could lead to UAF is two threads writing simultaneously to the "tx99" debug file. One of them would set the "start" value to true and follow to ath9k_tx99_init(). Inside the function it would set the sc->tx99_state to true after allocating sc->tx99skb. Then, the other thread would execute write_file_tx99() and call ath9k_tx99_deinit(). sc->tx99_state would be freed. After that, the first thread would continue inside ath9k_tx99_init() and call r = ath9k_tx99_send(sc, sc->tx99_skb, &txctl); that would make use of the freed sc->tx99_skb memory. Cc: <stable@vger.kernel.org> Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-06-27brcmfmac: Fix a memory leak in error handling path in 'brcmf_cfg80211_attach'Christophe Jaillet1-1/+2
If 'wiphy_new()' fails, we leak 'ops'. Add a new label in the error handling path to free it in such a case. Cc: stable@vger.kernel.org Fixes: 5c22fb85102a7 ("brcmfmac: add wowl gtk rekeying offload support") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-27brcmfmac: fix double free upon register_netdevice() failureArend Van Spriel3-3/+4
The function brcmf_net_attach() can only fail when register_netdevice() fails. When this happens register_netdevice() calls priv_destructor, ie. brcmf_cfg80211_free_netdev() freeing the vif instance. Also upon this failure brcmf_net_attach() calls free_netdev(). However, callers are also doing cleanup resulting in double free. In some places they need netdev private space as it holds parameters to communicate with the device. So we want to do the cleanup only in callers of brcmf_net_attach() by making the following changes: - set priv_destructor after register_netdevice() succeeds. - remove call to free_netdev() in brcmf_net_attach(). - call free_netdev() in brcmf_net_detach() for unregistered netdev. - add free_netdev() if brcmf_net_attach() fails for a created interface. Fixes: cf124db566e6 ("net: Fix inconsistent teardown and release of private netdev state.") Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-26net/mlx4: fix spelling mistake: "coalesing" -> "coalescing"Colin Ian King1-1/+1
Trivial fix to spelling mistake in en_dbg debug message Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-26net: add netlink_ext_ack argument to rtnl_link_ops.slave_validateMatthias Schiffer2-2/+4
Add support for extended error reporting. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-26net: add netlink_ext_ack argument to rtnl_link_ops.slave_changelinkMatthias Schiffer4-4/+8
Add support for extended error reporting. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-26net: add netlink_ext_ack argument to rtnl_link_ops.validateMatthias Schiffer28-33/+63
Add support for extended error reporting. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-26net: add netlink_ext_ack argument to rtnl_link_ops.changelinkMatthias Schiffer20-28/+47
Add support for extended error reporting. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-26net: add netlink_ext_ack argument to rtnl_link_ops.newlinkMatthias Schiffer32-40/+68
Add support for extended error reporting. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25net: macb: add fixed-link node supportMichael Grzeschik2-39/+60
In case the MACB is directly connected to a non-mdio PHY/device, it should be possible to provide a fixed link configuration in the DT. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25sctp: adjust ssthresh when transport is idleMarcelo Ricardo Leitner1-0/+2
RFC 4960 Errata 3.27 identifies that ssthresh should be adjusted to cwnd because otherwise it could cause the transport to lock into congestion avoidance phase specially if ssthresh was previously reduced by some packet drop, leading to poor performance. The Errata says to adjust ssthresh to cwnd only once, though the same goal is achieved by updating it every time we update cwnd too. The caveat is that we could take longer to get back up to speed but that should be compensated by the fact that we don't adjust on RTO basis (as RFC says) but based on Heartbeats, which are usually way longer. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01#section-3.27 Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25sctp: adjust cwnd increase in Congestion Avoidance phaseMarcelo Ricardo Leitner1-8/+18
RFC4960 Errata 3.26 identified that at the same time RFC4960 states that cwnd should never grow more than 1*MTU per RTT, Section 7.2.2 was underspecified and as described could allow increasing cwnd more than that. This patch updates it so partial_bytes_acked is maxed to cwnd if flight_size doesn't reach cwnd, protecting it from such case. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01#section-3.26 Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25sctp: allow increasing cwnd regardless of ctsn moving or notMarcelo Ricardo Leitner1-9/+8
As per RFC4960 Errata 3.22, this condition is not needed anymore as it could cause the partial_bytes_acked to not consider the TSNs acked in the Gap Ack Blocks although they were received by the peer successfully. This patch thus drops the check for new Cumulative TSN Ack Point, leaving just the flight_size < cwnd one. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01#section-3.22 Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25sctp: update order of adjustments of partial_bytes_acked and cwndMarcelo Ricardo Leitner1-7/+8
RFC4960 Errata 3.12 says RFC4960 is unclear about the order of adjustments applied to partial_bytes_acked and cwnd in the congestion avoidance phase, and that the actual order should be: partial_bytes_acked is reset to (partial_bytes_acked - cwnd). Next, cwnd is increased by MTU. We were first increasing cwnd, and then subtracting the new value pba, which leads to a different result as pba is smaller than what it should and could cause cwnd to not grow as much. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-rfc4960-errata-01#section-3.12 Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25net: Remove ndo_dfwd_start_xmitMintz, Yuval1-9/+0
Looks like commit f663dd9aaf9e ("net: core: explicitly select a txq before doing l2 forwarding") has removed the need for this dedicated xmit function [it even explicitly states so in its commit log message] but it hasn't removed the definition of the ndo. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> CC: Jason Wang <jasowang@redhat.com> CC: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25net: qcom/emac: add support for emulation systemsTimur Tabi1-2/+21
On emulation systems, the EMAC's internal PHY ("SGMII") is not present, but is not needed for network functionality. So just display a warning message and ignore the SGMII. Tested-by: Philip Elcan <pelcan@codeaurora.org> Tested-by: Adam Wallis <awallis@codeaurora.org> Signed-off-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25net: qcom/emac: do not reset the EMAC during initializationTimur Tabi1-2/+0
On ACPI systems, the driver depends on firmware pre-initializing the EMAC because we don't have access to the clocks, and the EMAC has specific clock programming requirements. Therefore, we don't want to reset the EMAC while we are completing the initialization. Tested-by: Richard Ruigrok <rruigrok@codeaurora.org> Signed-off-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>