- 06 Jul, 2020 1 commit
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Vaibhav Gupta authored
With legacy PM, drivers themselves were responsible for managing the device's power states and takes care of register states. And they use PCI helper functions to do it. After upgrading to the generic structure, PCI core will take care of required tasks and drivers should do only device-specific operations. In this driver: gem_suspend() calls gem_do_stop() which in turn invokes pci_disable_device(). As the PCI helper function is not called at the end/start of the function body, breaking the function in two parts may change its behavior. The only other function invoking gem_do_stop() is gem_close(). Hence, gem_close() and gem_suspend() can do the required end steps on their own. The same case is with gem_resume(). Both gem_resume() and gem_open() invoke gem_do_start(). Again, make the caller functions do the required steps on their own. Compile-tested only. Signed-off-by:
Vaibhav Gupta <vaibhavgupta40@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 05 Jul, 2020 39 commits
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Andrew Lunn authored
The comments before struct vsc73xx_platform and struct vsc73xx_spi use kerneldoc format, but then fail to document the members of these structures. All the structure members are self evident, and the driver has not other kerneldoc comments, so change these to plain comments to avoid warnings. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Andrew Lunn authored
Since lan9303_adjust_link() is a void function, there is no option to return an error. So just remove the variable and lets any errors be discarded. Cc: Egil Hjelmeland <privat@egil-hjelmeland.no> Signed-off-by:
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Andrew Lunn authored
Oddly, GENMASK() requires signed bit numbers, so that it can compare them for < 0. If passed an unsigned type, we get warnings about the test never being true. Signed-off-by:
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David S. Miller authored
Andrew Lunn says: ==================== dsa: b53/sf2 Fixup most of the C=1 W=1 warnings in these drivers. ==================== Signed-off-by: -
Andrew Lunn authored
Oddly, GENMASK() requires signed bit numbers, so that it can compare them for < 0. If passed an unsigned type, we get warnings about the test never being true. There is no danger of overflow here, udf is always a u8, so there is plenty of space when expanding to an int. Signed-off-by:
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Andrew Lunn authored
A __be16 variable should be initialised with a __be16 value. So add a htons(). In this case it is pointless, given the value being assigned is 0xffff, but it stops sparse from warnings. Signed-off-by:
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Andrew Lunn authored
leX_to_cpu() expects to be passed an __leX type. Signed-off-by:
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David S. Miller authored
Andrew Lunn says: ==================== net: dsa: mv88e6xxx: Fixup C=1 W=1 warnings Make the mv88e6xxx driver build cleanly with C=1 W=1. ==================== Signed-off-by: -
Andrew Lunn authored
Correct parameters and add the missing ones. Signed-off-by:
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Andrew Lunn authored
We don't act on any errors reading registers while handling watchdog interrupt. Since this is an interrupt handler, we cannot return such errors. So just remove the variable. Signed-off-by:
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Andrew Lunn authored
The flow spec member vlan_tci is in network order. Hence comparisons should be made again network order values. Signed-off-by:
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Andrew Lunn authored
Oddly, GENMASK() requires signed bit numbers, so that it can compare them for < 0. If passed an unsigned type, we get warnings about the test never being true. Signed-off-by:
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David S. Miller authored
Andrew Lunn says: ==================== net: dsa: Fix C=1 W=1 warnings Mostly not using __be16 when decoding packet contents. ==================== Signed-off-by: -
Andrew Lunn authored
net/dsa/tag_qca.c:48:15: warning: incorrect type in assignment (different base types) net/dsa/tag_qca.c:48:15: expected unsigned short [usertype] net/dsa/tag_qca.c:48:15: got restricted __be16 [usertype] net/dsa/tag_qca.c:68:13: warning: incorrect type in assignment (different base types) net/dsa/tag_qca.c:68:13: expected restricted __be16 [usertype] hdr net/dsa/tag_qca.c:68:13: got int net/dsa/tag_qca.c:71:16: warning: restricted __be16 degrades to integer net/dsa/tag_qca.c:81:17: warning: restricted __be16 degrades to integer Signed-off-by:
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Andrew Lunn authored
net/dsa/tag_mtk.c:84:13: warning: incorrect type in assignment (different base types) net/dsa/tag_mtk.c:84:13: expected restricted __be16 [usertype] hdr net/dsa/tag_mtk.c:84:13: got int net/dsa/tag_mtk.c:94:17: warning: restricted __be16 degrades to integer The result of a ntohs() is not __be16, but u16. Signed-off-by:
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Andrew Lunn authored
net/dsa/tag_lan9303.c:76:24: warning: incorrect type in assignment (different base types) net/dsa/tag_lan9303.c:76:24: expected unsigned short [usertype] net/dsa/tag_lan9303.c:76:24: got restricted __be16 [usertype] net/dsa/tag_lan9303.c:80:24: warning: incorrect type in assignment (different base types) net/dsa/tag_lan9303.c:80:24: expected unsigned short [usertype] net/dsa/tag_lan9303.c:80:24: got restricted __be16 [usertype] net/dsa/tag_lan9303.c:106:31: warning: restricted __be16 degrades to integer net/dsa/tag_lan9303.c:111:24: warning: cast to restricted __be16 net/dsa/tag_lan9303.c:111:24: warning: cast to restricted __be16 net/dsa/tag_lan9303.c:111:24: warning: cast to restricted __be16 net/dsa/tag_lan9303.c:111:24: warning: cast to restricted __be16 Make use of __be16 where appropriate to fix these warnings. Signed-off-by:
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Andrew Lunn authored
cpu_to_be16 returns a __be16 value. So what it is assigned to needs to have the same type to avoid warnings. Signed-off-by:
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Andrew Lunn authored
net/dsa/slave.c:505:13: warning: incorrect type in initializer (different address spaces) net/dsa/slave.c:505:13: expected void const [noderef] <asn:3> *__vpp_verify net/dsa/slave.c:505:13: got struct pcpu_sw_netstats * Add the needed _percpu property to prevent this warning. Signed-off-by:
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David S. Miller authored
Vladimir Oltean says: ==================== Phylink integration improvements for Felix DSA driver This is an overhaul of the Felix switch driver's phylink operations. Patches 1, 3, 4 and 5 are cleanup, patch 2 is adding a new feature and and patch 6 is adaptation to the new format of an existing phylink API (mac_link_up). Changes since v2: - Replaced "PHYLINK" with "phylink". - Rewrote commit message of patch 5/6. Changes since v1: - Now using phy_clear_bits and phy_set_bits instead of plain writes to MII_BMCR. This combines former patches 1/7 and 6/7 into a single new patch 1/6. - Updated commit message of patch 5/6. ==================== Signed-off-by: -
Vladimir Oltean authored
Phylink now requires that parameters established through auto-negotiation be written into the MAC at the time of the mac_link_up() callback. In the case of felix, that means taking the port out of reset, setting the correct timers for PAUSE frames, and enabling/disabling TX flow control. This patch also splits the inband and noinband configuration of the vsc9959 PCS (currently found in a function called "init") into 2 different functions, which have a nomenclature closer to phylink: "config", for inband setup, and "link_up", for noinband (forced) setup. This is necessary as a preparation step for giving up control of the PCS to phylink, which will be done in further patch series. Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
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Vladimir Oltean authored
Phylink uses the .mac_an_restart method to offer the user an implementation of the "ethtool -r" behavior, when the media-side auto negotiation can be restarted by the local MAC PCS. This is the case for fiber modes 1000Base-X and 2500Base-X (IEEE clause 37) that don't have an Ethernet PHY connected locally, and the media is connected to the MAC PCS directly. On the other hand, the Cisco SGMII and USXGMII standards also have an auto negotiation mechanism based on IEEE 802.3 clause 37 (their respective specs require a MAC PCS and a PHY PCS to implement the same state machine, which is described in IEEE 802.3 "Auto-Negotiation Figure 37-6"), so the ability to restart auto-negotiation is intrinsically symmetrical (the MAC PCS can do it too). However, it appears that not all SGMII/USXGMII PHYs have logic to restart the MDI-side auto-negotiation process when they detect a transition of the SGMII link from data mode to configuration mode. Some do (VSC8234) and some don't (AR8033, MV88E1111). IEEE and/or Cisco specification wordings to not help to prove whether propagating the "AN restart" event from MII side ("mr_restart_an") to MDI side ("mr_restart_negotiation") is required behavior - neither of them specifies any mandatory interaction between the clause 37 AN state machine from Figure 37-6 and the clause 28 AN state machine from Figure 28-18. Therefore, even if a certain behavior could be proven as being required, real-life SGMII/USXGMII PHYs are inconsistent enough that a clause 37 AN restart cannot be used by phylink to reliably trigger a media-side renegotiation, when the user requests it via ethtool. The only remaining use that the .mac_an_restart callback might possibly have, given what we know now, is to implement some silicon quirks, but so far that has proven to not be necessary. So remove this code for now, since it never gets called and we don't foresee any circumstance in which it might be, either. Signed-off-by: -
Vladimir Oltean authored
state->speed holds a value of 10, 100, 1000 or 2500, but SYS_MAC_FC_CFG_FC_LINK_SPEED expects a value in the range 0, 1, 2 or 3. So set the correct speed encoding into this register. Signed-off-by:
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Vladimir Oltean authored
In VSC9959, the PCS is the one who performs rate adaptation (symbol duplication) to the speed negotiated by the PHY. The MAC is unaware of that and must remain configured for gigabit. If it is configured at OCELOT_SPEED_10 or OCELOT_SPEED_100, it'll start transmitting PAUSE frames out of control and never recover, _even if_ we then reconfigure it at OCELOT_SPEED_1000 afterwards. This patch fixes a bug that luckily did not have any functional impact. We were writing 10, 100, 1000 etc into this 2-bit field in DEV_CLOCK_CFG, but the hardware expects values in the range 0, 1, 2, 3. So all speed values were getting truncated to 0, which is OCELOT_SPEED_2500, and which also appears to be fine. Signed-off-by:
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Vladimir Oltean authored
Ping tested: [ 11.808455] mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Full - flow control rx/tx [ 11.816497] IPv6: ADDRCONF(NETDEV_CHANGE): swp0: link becomes ready [root@LS1028ARDB ~] # ethtool -s swp0 advertise 0x4 [ 18.844591] mscc_felix 0000:00:00.5 swp0: Link is Down [ 22.048337] mscc_felix 0000:00:00.5 swp0: Link is Up - 100Mbps/Half - flow control off [root@LS1028ARDB ~] # ip addr add 192.168.1.1/24 dev swp0 [root@LS1028ARDB ~] # ping 192.168.1.2 PING 192.168.1.2 (192.168.1.2): 56 data bytes (...) ^C--- 192.168.1.2 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.383/0.611/1.051 ms [root@LS1028ARDB ~] # ethtool -s swp0 advertise 0x10 [ 355.637747] mscc_felix 0000:00:00.5 swp0: Link is Down [ 358.788034] mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Half - flow control off [root@LS1028ARDB ~] # ping 192.168.1.2 PING 192.168.1.2 (192.168.1.2): 56 data bytes (...) ^C --- 192.168.1.2 ping statistics --- 16 packets transmitted, 16 packets received, 0% packet loss round-trip min/avg/max = 0.301/0.384/1.138 ms Signed-off-by:
Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by:
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Vladimir Oltean authored
The driver appears to write to BMCR_SPEED and BMCR_DUPLEX, fields which are read-only, since they are actually configured through the vendor-specific IF_MODE (0x14) register. But the reason we're writing back the read-only values of MII_BMCR is to alter these writable fields: BMCR_RESET BMCR_LOOPBACK BMCR_ANENABLE BMCR_PDOWN BMCR_ISOLATE BMCR_ANRESTART In particular, the only field which is really relevant to this driver is BMCR_ANENABLE. Clarify that intention by spelling it out, using phy_set_bits and phy_clear_bits. The driver also made a few writes to BMCR_RESET and BMCR_ANRESTART which are unnecessary and may temporarily disrupt the link to the PHY. Remove them. Signed-off-by:
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David S. Miller authored
Vaibhav Gupta says: ==================== qlogic: use generic power management Linux Kernel Mentee: Remove Legacy Power Management. The purpose of this patch series is to remove legacy power management callbacks from qlogic ethernet drivers. The callbacks performing suspend() and resume() operations are still calling pci_save_state(), pci_set_power_state(), etc. and handling the power management themselves, which is not recommended. The conversion requires the removal of the those function calls and change the callback definition accordingly and make use of dev_pm_ops structure. All patches are compile-tested only. V2: Fix unused variable warning in v1. ==================== Signed-off-by: -
Vaibhav Gupta authored
With legacy PM, drivers themselves were responsible for managing the device's power states and taking care of register states. And they use PCI helper functions to do it. After upgrading to the generic structure, PCI core will take care of required tasks and drivers should do only device-specific operations. .suspend() calls __qlcnic_shutdown, which then calls qlcnic_82xx_shutdown; .resume() calls __qlcnic_resume, which then calls qlcnic_82xx_resume; Both ...82xx..() are define in drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c and are used only in drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c. Hence upgrade them and remove PCI function calls, like pci_save_state() and pci_enable_wake(), inside them Compile-tested only. Signed-off-by:
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Vaibhav Gupta authored
With legacy PM, drivers themselves were responsible for managing the device's power states and takes care of register states. And they use PCI helper functions to do it. After upgrading to the generic structure, PCI core will take care of required tasks and drivers should do only device-specific operations. In this driver: netxen_nic_resume() calls netxen_nic_attach_func() which then invokes PCI helper functions like pci_enable_device(), pci_set_power_state() and pci_restore_state(). Other function: - netxen_io_slot_reset() also calls netxen_nic_attach_func(). Also, netxen_io_slot_reset() returns specific value based on the return value of netxen_nic_attach_func() as whole. Thus, cannot simply move some piece of code from netxen_nic_attach_func() to it. Hence, define a new function netxen_nic_attach_late_func() to do the tasks which has to be done after PCI helper functions have done their job. Now, netxen_nic_attach_func() invokes netxen_nic_attach_late_func(), thus netxen_io_slot_reset() behaves normally. And, netxen_nic_resume() calls netxen_nic_attach_late_func() to avoid PCI helper functions calls. Compile-tested only. Signed-off-by:
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Codrin Ciubotariu authored
Private structure members live_ports, on_ports, rx_ports, tx_ports are initialized but not used anywhere. Let's remove them. Suggested-by:
Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Signed-off-by:
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Codrin Ciubotariu authored
The DSA subsystem moved to phylink and adjust_link() became deprecated in the process. This patch removes adjust_link from the KSZ DSA switches and adds phylink_mac_link_up() and phylink_mac_link_down(). Signed-off-by:
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David S. Miller authored
Florian Westphal says: ==================== mptcp: add REUSEADDR/REUSEPORT/V6ONLY setsockopt support restarting an mptcp-patched sshd yields following error: sshd: error: Bind to port 22 on 0.0.0.0 failed: Address already in use. sshd: error: setsockopt IPV6_V6ONLY: Operation not supported sshd: error: Bind to port 22 on :: failed: Address already in use. sshd: fatal: Cannot bind any address. This series adds support for the needed setsockopts: First patch skips the generic SOL_SOCKET handler for MPTCP: in mptcp case, the setsockopt needs to alter the tcp socket, not the mptcp parent socket. Second patch adds minimal SOL_SOCKET support: REUSEPORT and REUSEADDR. Rest is still handled by the generic SOL_SOCKET code. Last patch adds IPV6ONLY support. This makes ipv6 work for openssh: It creates two listening sockets, before this patch, binding the ipv6 socket will fail because the port is already bound by the ipv4 one. ==================== Signed-off-by: -
Florian Westphal authored
Without this, Opensshd fails to open an ipv6 socket listening socket: error: setsockopt IPV6_V6ONLY: Operation not supported error: Bind to port 22 on :: failed: Address already in use. Opensshd opens an ipv4 and and ipv6 listening socket, but because IPV6_V6ONLY setsockopt fails, the port number is already in use. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Florian Westphal authored
This will e.g. make 'sshd restart' work when MPTCP is used, as we will now set this option on the listener socket instead of only the mptcp socket (where it has no effect). We still need to copy the setting to the master socket so that a subsequent getsockopt() returns the expected value. Reported-by:
Christoph Paasch <cpaasch@apple.com> Suggested-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
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Florian Westphal authored
setsockopt(mptcp_fd, SOL_SOCKET, ...)... appears to work (returns 0), but it has no effect -- this is because the MPTCP layer never has a chance to copy the settings to the subflow socket. Skip the generic handling for the mptcp case and instead call the mptcp specific handler instead for SOL_SOCKET too. Next patch adds more specific handling for SOL_SOCKET to mptcp. Signed-off-by:
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Tanner Love authored
Before, clang version 9 threw errors such as: error: use of GNU old-style field designator extension [-Werror,-Wgnu-designator] { tstamp: true, swtstamp: true } ^~~~~~~ .tstamp = Fix these warnings in tools/testing/selftests/net in the same manner as commit 121e357a ("selftests/harness: Update named initializer syntax"). N.B. rxtimestamp.c is the only affected file in the directory. Signed-off-by:Tanner Love <tannerlove@google.com> Acked-by:
Willem de Bruijn <willemb@google.com> Signed-off-by:
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David S. Miller authored
Sudarsana Reddy Kalluru says: ==================== bnx2x: Perform IdleChk dump. Idlechk test verifies that the chip is in idle state. If there are any errors, Idlechk dump would capture the same. This data will help in debugging the device related issues. The patch series adds driver support for dumping IdleChk data during the debug dump collection. Patch (1) adds register definitions required in this implementation. Patch (2) adds the implementation for Idlechk tests. Patch (3) adds driver changes to invoke Idlechk implementation. Changes from previous version: ------------------------------- v3: Combined the test data creation and implementation to a single patch. v2: Addressed issues reported by kernel test robot. ==================== Signed-off-by: -
Sudarsana Reddy Kalluru authored
The patch adds driver changes to perform Idlechk dump during the debug data collection. Signed-off-by:
Sudarsana Reddy Kalluru <skalluru@marvell.com> Signed-off-by:
Igor Russkikh <irusskikh@marvell.com> Signed-off-by:
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Sudarsana Reddy Kalluru authored
This patch populates a database of idlechk tests (registers and predicates) and performs the idlechk using this data. Signed-off-by:
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Sudarsana Reddy Kalluru authored
The patch adds register definitions required for Idlechk implementation. Signed-off-by:
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