- 27 Jul, 2020 40 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Tony Nguyen says: ==================== 1GbE Intel Wired LAN Driver Updates 2020-07-27 This series contains updates to igc driver only. Sasha cleans up double definitions, unneeded and non applicable registers, and removes unused fields in structs. Ensures the Receive Descriptor Minimum Threshold Count is cleared and fixes a static checker error. v2: Remove fields from hw_stats in patches that removed their uses. Reworded patch descriptions for patches 1, 2, and 4. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Colin Ian King authored
Currently n_rq_elems is being assigned to params.elem_size instead of the field params.num_elems. Coverity is detecting this as a double assingment to params.elem_size and reporting this as an usused value on the first assignment. Fix this. Addresses-Coverity: ("Unused value") Fixes: b6db3f71 ("qed: simplify chain allocation with init params struct") Signed-off-by:Colin Ian King <colin.king@canonical.com> Acked-by:
Alexander Lobakin <alobakin@marvell.com> Signed-off-by:
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David S. Miller authored
Edward Cree says: ==================== sfc: driver for EF100 family NICs, part 1 EF100 is a new NIC architecture under development at Xilinx, based partly on existing Solarflare technology. As many of the hardware interfaces resemble EF10, support is implemented within the 'sfc' driver, which previous patch series "commonised" for this purpose. In order to maintain bisectability while splitting into patches of a reasonable size, I had to do a certain amount of back-and-forth with stubs for things that the common code may try to call, mainly because we can't do them until we've set up MCDI, but we can't set up MCDI without probing the event queues, at which point a lot of the common machinery becomes reachable from event handlers. Consequently, this first series doesn't get as far as actually sending and receiving packets. I have a second series ready to follow it which implements the datapath (and a few other things like ethtool). Changes from v4: * Fix build on CONFIG_RETPOLINE=n by using plain prototypes instead of INDIRECT_CALLABLE_DECLARE. Changes from v3: * combine both drivers (sfc_ef100 and sfc) into a single module, to make non-modular builds work. Patch #4 now adds a few indirections to support this; the ones in the RX and TX path use indirect-call- wrappers to minimise the performance impact. Changes from v2: * remove MODULE_VERSION. * call efx_destroy_reset_workqueue() from ef100_exit_module(). * correct uint32_ts to u32s. While I was at it, I fixed a bunch of other style issues in the function-control-window code. All in patch #4. Changes from v1: * kernel test robot spotted a link error when sfc_ef100 was built without mdio. It turns out the thing we were trying to link to was a bogus thing to do on anything but Falcon, so new patch #1 removes it from this driver. * fix undeclared symbols in patch #4 by shuffling around prototypes and #includes and adding 'static' where appropriate. * fix uninitialised variable 'rc2' in patch #7. ==================== Signed-off-by: -
Edward Cree authored
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Edward Cree <ecree@solarflare.com> Signed-off-by:
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Edward Cree authored
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Edward Cree authored
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Edward Cree authored
In ef100_reset(), make the MCDI call to do the reset. Also, do a reset at start-of-day during probe, to put the function in a clean state. Signed-off-by:
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Edward Cree authored
MC_CMD_GET_CAPABILITIES now has a third word of flags; extend the efx_has_cap() machinery to cover it. Signed-off-by:
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Edward Cree authored
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Edward Cree authored
Currently RX and TX-completion events are unhandled, as neither the RX nor the TX path has been implemented yet. Signed-off-by:
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Edward Cree authored
Channels are probed, but actual event handling is still stubbed out. Stub implementation of check_caps is needed because ptp.c will call into it from efx_ptp_use_mac_tx_timestamps() to decide if it wants TXQs. Signed-off-by:
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Edward Cree authored
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Edward Cree authored
We handle everything ourselves in ef100_reset(), rather than relying on the generic down/up routines. Signed-off-by:
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Edward Cree authored
We can't actually do the MCDI to probe it fully until we have working MCDI, which comes later, but we need efx->phy_data to be allocated so that when we get MCDI events the link-state change handler doesn't NULL-dereference. Signed-off-by:
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Edward Cree authored
We don't actually do the efx_mcdi_reset() because we don't have MCDI yet. Signed-off-by:
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Edward Cree authored
No TX or RX path, no MCDI, not even an ifup/down handler. Besides stubs, the bulk of the patch deals with reading the Xilinx extended PCIe capability, which tells us where to find our BAR. Though in the same module, EF100 has its own struct pci_driver, which is named sfc_ef100. A small number of additional nic_type methods are added; those in the TX (tx_enqueue) and RX (rx_packet) paths are called through indirect call wrappers to minimise the performance impact. Signed-off-by:
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Edward Cree authored
EF100 adds a few new valid addresses for efx_writed_page(), as well as a Function Control Window in the BAR whose location is variable. Signed-off-by:
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Edward Cree authored
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Edward Cree authored
An MDIO-based n-way restart does not make sense for any of the NICs supported by this driver, nor for the coming EF100. Unlike on Falcon (which was already split off into a separate driver), the PHY on all of Siena, EF10 and EF100 is managed by MC firmware. While Siena can talk to the PHY over MDIO, doing so for anything other than debugging purposes (mdio_mii_ioctl) is likely to confuse the firmware. (According to the SFC firmware team, this support was originally added to the Siena driver early in the development of that product, before it was decided to have firmware manage the PHY.) Signed-off-by:
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David S. Miller authored
Murali Karicheri says: ==================== Add PRP driver This series is dependent on the following patches sent out to netdev list. All (1-3) are already merged to net/master as of sending this, but not on the net-next master branch. So need to apply them to net-next before applying this series. v3 of the iproute2 patches can be merged to work with this series as there are no updates since then. [1] https://marc.info/?l=linux-netdev&m=159526378131542&w=2 [2] https://marc.info/?l=linux-netdev&m=159499772225350&w=2 [3] https://marc.info/?l=linux-netdev&m=159499772425352&w=2 This series adds support for Parallel Redundancy Protocol (PRP) in the Linux HSR driver as defined in IEC-62439-3. PRP Uses a Redundancy Control Trailer (RCT) the format of which is similar to HSR Tag. This is used for implementing redundancy. RCT consists of 6 bytes similar to HSR tag and contain following fields:- - 16-bit sequence number (SeqNr); - 4-bit LAN identifier (LanId); - 12 bit frame size (LSDUsize); - 16-bit suffix (PRPsuffix). The PRPsuffix identifies PRP frames and distinguishes PRP frames from other protocols that also append a trailer to their useful data. The LSDUsize field allows the receiver to distinguish PRP frames from random, nonredundant frames as an additional check. LSDUsize is the size of the Ethernet payload inclusive of the RCT. Sequence number along with LanId is used for duplicate detection and discard. PRP node is also known as Dual Attached Node (DAN-P) since it is typically attached to two different LAN for redundancy. DAN-P duplicates each of L2 frames and send it over the two Ethernet links. Each outgoing frame is appended with RCT. Unlike HSR, these are added to the end of L2 frame and will be treated as pad by bridges and therefore would be work with traditional bridges or switches, where as HSR wouldn't as Tag is prefixed to the Ethenet frame. At the remote end, these are received and the duplicate frame is discarded before the stripped frame is send up the networking stack. Like HSR, PRP also sends periodic Supervision frames to the network. These frames are received and MAC address from the SV frames are populated in a database called Node Table. The above functions are grouped into a block called Link Redundancy Entity (LRE) in the IEC spec. As there are many similarities between HSR and PRP protocols, this patch re-uses the code from HSR driver to implement PRP driver. As per feedback from the RFC series, the implementation uses the existing HSR Netlink socket interface to create the PRP interface by adding a new proto parameter to the ip link command to identify the PRP protocol. iproute2 is enhanced to implement this new parameter. The hsr_netlink.c is enhanced to handle the new proto parameter. As suggested during the RFC review, the driver introduced a proto_ops structure to hold protocol specfic functions to handle HSR and PRP specific function pointers and use them in the code based on the protocol to handle protocol specific part differently in the driver. Please review this and provide me feedback so that I can work to incorporate them and spin the next version if needed. The patch was tested using two TI AM57x IDK boards for PRP which are connected back to back over two CPSW Ethernet ports. PRP Test setup --------------- --------eth0 eth0 -------- |AM572x|----------------------|AM572x| | |----------------------| | --------eth1 eth1 -------- To build, enable CONFIG_HSR=y or m make omap2plus_defconfig make zImage; make modules; make dtbs Copy the zImage and dtb files to the file system on SD card and power on the AM572x boards. This can be tested on any platforms with 2 Ethernet interfaces. So will appreciate if you can give it a try and provide your Tested-by. Command to create PRP interface ------------------------------- ifconfig eth0 0.0.0.0 down ifconfig eth1 0.0.0.0 down ifconfig eth0 hw ether 70:FF:76:1C:0E:8C ifconfig eth1 hw ether 70:FF:76:1C:0E:8C ifconfig eth0 up ifconfig eth1 up ip link add name prp0 type hsr slave1 eth0 slave2 eth1 supervision 45 proto 1 ifconfig prp0 192.168.2.10 ifconfig eth0 0.0.0.0 down ifconfig eth1 0.0.0.0 down ifconfig eth0 hw ether 70:FF:76:1C:0E:8D ifconfig eth1 hw ether 70:FF:76:1C:0E:8D ifconfig eth0 up ifconfig eth1 up ip link add name prp0 type hsr slave1 eth0 slave2 eth1 supervision 45 proto 1 ifconfig prp0 192.168.2.20 command to show node table ---------------------------- Ping the peer board after the prp0 interface is up. The remote node (DAN-P) will be shown in the node table as below. root@am57xx-evm:~# cat /sys/kernel/debug/hsr/prp0/node_table Node Table entries for (PRP) device MAC-Address-A, MAC-Address-B, time_in[A], time_in[B], Address-B port, SAN-A, SAN-B, DAN-P 70:ff:76:1c:0e:8c 00:00:00:00:00:00 ffffe83f, ffffe83f, 0, 0, 0, 1 Try to capture the raw PRP frames at the eth0 interface as tcpdump -i eth0 -xxx Sample Supervision frames and ARP frames shown below. ================================================================================== Successive Supervision frames captured with tcpdump (with RCT at the end): 03:43:29.500999 70:ff:76:1c:0e:8d (oui Unknown) > 01:15:4e:00:01:2d (oui Unknown), ethertype Unknown (0x88f 0x0000: 0115 4e00 012d 70ff 761c 0e8d 88fb 0001 0x0010: 7e0a 1406 70ff 761c 0e8d 0000 0000 0000 0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 0x0030: 0000 0000 0000 0000 0000 0000 fc2b a034 0x0040: 88fb 03:43:31.581025 70:ff:76:1c:0e:8d (oui Unknown) > 01:15:4e:00:01:2d (oui Unknown), ethertype Unknown (0x88f 0x0000: 0115 4e00 012d 70ff 761c 0e8d 88fb 0001 0x0010: 7e0b 1406 70ff 761c 0e8d 0000 0000 0000 0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 0x0030: 0000 0000 0000 0000 0000 0000 fc2c a034 0x0040: 88fb ICMP Echo request frame with RCT 03:43:33.805354 IP 192.168.2.20 > 192.168.2.10: ICMP echo request, id 63748, seq 1, length 64 0x0000: 70ff 761c 0e8c 70ff 761c 0e8d 0800 4500 0x0010: 0054 26a4 4000 4001 8e96 c0a8 0214 c0a8 0x0020: 020a 0800 c28e f904 0001 202e 1c3d 0000 0x0030: 0000 0000 0000 0000 0000 0000 0000 0000 0x0040: 0000 0000 0000 0000 0000 0000 0000 0000 0x0050: 0000 0000 0000 0000 0000 0000 0000 0000 0x0060: 0000 fc31 a05a 88fb ================================================================================== The iperf3 traffic test logs can be accessed at the links below. DUT-1: https://pastebin.ubuntu.com/p/8SkQzWJMn8/ DUT-2: https://pastebin.ubuntu.com/p/j2BZvvs7p4/ Other tests done. - Connect a SAN (eth0 and eth1 without prp interface) and do ping test from eth0 (192.168.2.40) to prp0 (192.168.2.10) verify the SAN node shows at the correct link A and B as shown in the node table dump - Regress HSR interface using 3 nodes connected in a ring topology. create hsr link version 0. Do iperf3 test between all nodes create hsr link version 1. Do iperf3 test between all nodes. --------eth0 eth1 --------eth0 eth1-------| |AM572x|----------------------|AM572x|--------------|AM572x| | | | | ------| | --------eth1---| ------- | eth0 ------- |------------------------------- command used for HSR interface HSR V0 ifconfig eth0 0.0.0.0 down ifconfig eth1 0.0.0.0 down ifconfig eth0 hw ether 70:FF:76:1C:0E:8C ifconfig eth1 hw ether 70:FF:76:1C:0E:8C ifconfig eth0 up ifconfig eth1 up ip link add name hsr0 type hsr slave1 eth0 slave2 eth1 supervision 45 version 0 ifconfig hsr0 192.168.2.10 HSR V1 ifconfig eth0 0.0.0.0 down ifconfig eth1 0.0.0.0 down ifconfig eth0 hw ether 70:FF:76:1C:0E:8C ifconfig eth1 hw ether 70:FF:76:1C:0E:8C ifconfig eth0 up ifconfig eth1 up ip link add name hsr0 type hsr slave1 eth0 slave2 eth1 supervision 45 version 1 ifconfig hsr0 192.168.2.10 Logs at DUT-1 : https://pastebin.ubuntu.com/p/6PSJbZwQ6y/ DUT-2 : https://pastebin.ubuntu.com/p/T8TqJsPRHc/ DUT-3 : https://pastebin.ubuntu.com/p/VNzpv6HzKj/ - Build tests :- Build with CONFIG_HSR=m allmodconfig build build with CONFIG_HSR=y and rebuild with sparse checker make C=1 zImage; make modules Version history: v5 : Fixed comments about Kconfig changes on Patch 1/7 against v4 Rebased to netnext/master branch. v4 : fixed following vs v3 reverse xmas tree for local variables check for return type in call to skb_put_padto() v3 : Separated bug fixes from this series and send them for immediate merge But for that this is same as v2. v2 : updated comments on RFC. Following are the main changes:- - Removed the hsr_prp prefix - Added PRP information in header files to indicate the support for PRP explicitely - Re-use netlink socket interface with an added parameter proto for identifying PRP. - Use function pointers using a proto_ops struct to do things differently for PRP vs HSR. RFC: initial version posted and discussed at https://www.spinics.net/lists/netdev/msg656229.html ==================== Signed-off-by:
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Murali Karicheri authored
Print PRP specific information from node table as part of debugfs node table display. Also display the node as DAN-H or DAN-P depending on the info from node table. Signed-off-by:
Murali Karicheri <m-karicheri2@ti.com> Signed-off-by:
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Murali Karicheri authored
DAN-P (Dual Attached Nodes PRP) nodes are expected to receive traditional IP packets as well as PRP (Parallel Redundancy Protocol) tagged (trailer) packets. PRP trailer is 6 bytes of PRP protocol unit called RCT, Redundancy Control Trailer (RCT) similar to HSR tag. PRP network can have traditional devices such as bridges/switches or PC attached to it and should be able to communicate. Regular Ethernet devices treat the RCT as pads. This patch adds logic to format L2 frames from network stack to add a trailer (RCT) and send it as duplicates over the slave interfaces when the protocol is PRP as per IEC 62439-3. At the ingress, it strips the trailer, do duplicate detection and rejection and forward a stripped frame up the network stack. PRP device should accept frames from Singly Attached Nodes (SAN) and thus the driver mark the link where the frame came from in the node table. Signed-off-by:
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Murali Karicheri authored
As a preparatory patch to introduce PRP, refactor the code specific to handling HSR frames into separate functions and call them through proto_ops function pointers. Signed-off-by:
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Murali Karicheri authored
Add support for generation of PRP supervision frames. For PRP, supervision frame format is similar to HSR version 0, but have a PRP Redundancy Control Trailer (RCT) added and uses a different message type, PRP_TLV_LIFE_CHECK_DD. Also update is_supervision_frame() to include the new message type used for PRP supervision frame. Signed-off-by:
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Murali Karicheri authored
As a preparatory patch to introduce support for PRP protocol, add a protocol ops ptr in the private hsr structure to hold function pointers as some of the functions at protocol level packet handling is different for HSR vs PRP. It is expected that PRP will add its of set of functions for protocol handling. Modify existing hsr_announce() function to call proto_ops->send_sv_frame() to send supervision frame for HSR. This is expected to be different for PRP. So introduce a ops function ptr, send_sv_frame() for the same and initialize it to send_hsr_supervsion_frame(). Modify hsr_announce() to call proto_ops->send_sv_frame(). Signed-off-by:
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Murali Karicheri authored
As a preparatory patch to introduce PRP protocol support in the driver, refactor the skb init code to a separate function. Signed-off-by:
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Murali Karicheri authored
Parallel Redundancy Protocol (PRP) is another redundancy protocol introduced by IEC 63439 standard. It is similar to HSR in many aspects:- - Use a pair of Ethernet interfaces to created the PRP device - Use a 6 byte redundancy protocol part (RCT, Redundancy Check Trailer) similar to HSR Tag. - Has Link Redundancy Entity (LRE) that works with RCT to implement redundancy. Key difference is that the protocol unit is a trailer instead of a prefix as in HSR. That makes it inter-operable with tradition network components such as bridges/switches which treat it as pad bytes, whereas HSR nodes requires some kind of translators (Called redbox) to talk to regular network devices. This features allows regular linux box to be converted to a DAN-P box. DAN-P stands for Dual Attached Node - PRP similar to DAN-H (Dual Attached Node - HSR). Add a comment at the header/source code to explicitly state that the driver files also handles PRP protocol as well. Signed-off-by:
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Alexander Lobakin authored
Dan reports static checker warning: "The patch 9b6ee3cf: "qed: sanitize PBL chains allocation" from Jul 23, 2020, leads to the following static checker warning: drivers/net/ethernet/qlogic/qed/qed_chain.c:299 qed_chain_alloc_pbl() error: uninitialized symbol 'pbl_virt'. drivers/net/ethernet/qlogic/qed/qed_chain.c 249 static int qed_chain_alloc_pbl(struct qed_dev *cdev, struct qed_chain *chain) 250 { 251 struct device *dev = &cdev->pdev->dev; 252 struct addr_tbl_entry *addr_tbl; 253 dma_addr_t phys, pbl_phys; 254 __le64 *pbl_virt; ^^^^^^^^^^^^^^^^ [...] 271 if (chain->b_external_pbl) 272 goto alloc_pages; ^^^^^^^^^^^^^^^^ uninitialized [...] 298 /* Fill the PBL table with the physical address of the page */ 299 pbl_virt[i] = cpu_to_le64(phys); ^^^^^^^^^^^ [...] " This issue was introduced with commit c3a321b0 ("qed: simplify initialization of the chains with an external PBL"), when chain->pbl_sp.table_virt initialization was moved up to qed_chain_init_params(). Fix it by initializing pbl_virt with an already filled chain struct field. Fixes: c3a321b0 ("qed: simplify initialization of the chains with an external PBL") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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David S. Miller authored
Michael Chan says: ==================== bnxt_en update. This patchset removes the PCIe histogram and other debug register data from ethtool -S. The removed data are not counters and they have very large and constantly fluctuating values that are not suitable for the ethtool -S decimal counter display. The rest of the patches implement counter rollover for all hardware counters that are not 64-bit counters. Different generations of hardware have different counter widths. The driver will now query the counter widths of all counters from firmware and implement rollover support on all non-64-bit counters. The last patch adds the PCIe histogram and other PCIe register data back using the ethtool -d interface. v2: Fix bnxt_re RDMA driver compile issue. ==================== Signed-off-by: -
Vasundhara Volam authored
Add support to dump PXP registers and PCIe statistics. Signed-off-by:
Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Michael Chan authored
Now we can report all the full 64-bit CPU endian software accumulated counters instead of the hw counters, some of which may be less than 64-bit wide. Define the necessary macros to access the software counters. Reviewed-by:
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Michael Chan authored
Now that we have the infrastructure in place, add the new function bnxt_accumulate_all_stats() to periodically accumulate and check for counter rollover of all ring stats and port stats. A chip bug was also discovered that could cause some ring counters to become 0 during DMA. Workaround by ignoring zeros on the affected chips. Some older frimware will reset port counters during ifdown. We need to check for that and free the accumulated port counters during ifdown to prevent bogus counter overflow detection during ifup. Reviewed-by:
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Michael Chan authored
If supported by newer firmware, make the firmware call to query all the port counter masks. If not supported, assume 40-bit port counter masks. Reviewed-by:
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Michael Chan authored
Newer firmware has a new call HWRM_FUNC_QSTATS_EXT to retrieve the masks of all ring counters. Make this call when supported to initialize the hardware masks of all ring counters. If the call is not available, assume 48-bit ring counter masks on P5 chips. Reviewed-by:
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Michael Chan authored
Some of these DMAed hardware counters are not full 64-bit counters and so we need to accumulate them as they overflow. Allocate copies of these DMA statistics memory blocks with the same size for accumulation. The hardware counter widths are also counter specific so we allocate memory for masks that correspond to each counter. Reviewed-by:
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Michael Chan authored
The driver manages multiple statistics structures of different sizes. They are all allocated, freed, and handled practically the same. Define a new bnxt_stats_mem structure and common allocation and free functions for all staistics memory blocks. Reviewed-by:
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Michael Chan authored
The port statistics structures have hard coded padding and offset. Define macros to make this look cleaner. Reviewed-by:
Pavan Chebbi <pavan.chebbi@broadcom.com> Reviewed-by:
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Michael Chan authored
Main changes are 200G support and fixing the definitions of discard and error counters to match the hardware definitions. Because the HWRM_PORT_PHY_QCFG message size has now exceeded the max. encapsulated response message size of 96 bytes from the PF to the VF, we now need to cap this message to 96 bytes for forwarding. The forwarded response only needs to contain the basic link status and speed information and can be capped without adding the new information. v2: Fix bnxt_re compile error. Cc: Selvin Xavier <selvin.xavier@broadcom.com> Reviewed-by:
Edwin Peer <edwin.peer@broadcom.com> Signed-off-by:
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Vasundhara Volam authored
Remove PCIe non-counters display from ethtool statistics, as they are not simple counters but register dump. The next few patches will add logic to detect counter roll-over and it won't work with these PCIe non-counters. There will be a follow up patch to get PCIe information via ethtool register dump. Signed-off-by:
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Martin Varghese authored
MPLS has no dependency with the device type of underlying devices. Hence the device type check to add mpls support for devices can be avoided. Signed-off-by:
Martin Varghese <martin.varghese@nokia.com> Signed-off-by:
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