- 18 Jan, 2021 3 commits
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Alex Elder authored
Rather than having separate pointers for the memory, imem, and config interconnect paths, maintain an array of ipa_interconnect structures each of which contains a pointer to a path. Signed-off-by:
Alex Elder <elder@linaro.org> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Alex Elder authored
If disabling interconnects fails there's not a lot we can do. The only two callers of ipa_interconnect_disable() ignore the return value, so just give the function a void return type. Print an error message if disabling any of the interconnects is not successful. Return (and print) only the first error seen. Signed-off-by:
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Alex Elder authored
Use "bandwidth" rather than "rate" in describing the average and peak values to use for IPA interconnects. They should have been named that way to begin with. Signed-off-by:
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- 17 Jan, 2021 13 commits
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Jakub Kicinski authored
Xin Long says: ==================== net: fix the features flag in sctp_gso_segment Patch 1/2 is to improve the code in skb_segment(), and it is needed by Patch 2/2. ==================== Link: https://lore.kernel.org/r/cover.1610703289.git.lucien.xin@gmail.comSigned-off-by:
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Xin Long authored
It makes more sense to clear NETIF_F_SG instead of set it when calling skb_segment() in sctp_gso_segment(), since SCTP GSO is using head_skb's fraglist, of which all frags are linear skbs. This will make SCTP GSO code more understandable. Suggested-by:
Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
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Xin Long authored
After commit 89319d38 ("net: Add frag_list support to skb_segment"), it goes to process frag_list when !hsize in skb_segment(). However, when using skb frag_list, sg normally should not be set. In this case, hsize will be set with len right before !hsize check, then it won't go to frag_list processing code. So the right thing to do is move the hsize check to the else block, so that it won't affect the !hsize check for frag_list processing. v1->v2: - change to do "hsize <= 0" check instead of "!hsize", and also move "hsize < 0" into else block, to save some cycles, as Alex suggested. Signed-off-by:
Alexander Duyck <alexanderduyck@fb.com> Signed-off-by:
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Xu Wang authored
fix semicolon.cocci warnings: drivers/net/ethernet/mscc/ocelot_net.c:460:2-3: Unneeded semicolon Signed-off-by:
Xu Wang <vulab@iscas.ac.cn> Link: https://lore.kernel.org/r/20210115095544.33164-1-vulab@iscas.ac.cnSigned-off-by:
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Raju Rangoju authored
Enable interrupt based Tx completions to improve latency for T5. The consumer index (CIDX) will now come via interrupts so that Tx SKBs can be freed up sooner in Rx path. Also, enforce CIDX flush threshold override (CIDXFTHRESHO) to improve latency for slow traffic. This ensures that the interrupt is generated immediately whenever hardware catches up with driver (i.e. CIDX == PIDX is reached), which is often the case for slow traffic. Signed-off-by:
Raju Rangoju <rajur@chelsio.com> Link: https://lore.kernel.org/r/20210115102059.6846-1-rajur@chelsio.comSigned-off-by:
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Jakub Kicinski authored
Lee Jones says: ==================== Rid W=1 warnings in Ethernet This set is part of a larger effort attempting to clean-up W=1 kernel builds, which are currently overwhelmingly riddled with niggly little warnings. v2: - Squashed IBM patches - Fixed real issue in SMSC - Added Andrew's Reviewed-by tags on remainder ==================== Link: https://lore.kernel.org/r/20210115200905.3470941-1-lee.jones@linaro.orgSigned-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/toshiba/spider_net.c:263: warning: Function parameter or member 'hwdescr' not described in 'spider_net_get_descr_status' drivers/net/ethernet/toshiba/spider_net.c:263: warning: Excess function parameter 'descr' description in 'spider_net_get_descr_status' drivers/net/ethernet/toshiba/spider_net.c:554: warning: Function parameter or member 'netdev' not described in 'spider_net_get_multicast_hash' drivers/net/ethernet/toshiba/spider_net.c:902: warning: Function parameter or member 't' not described in 'spider_net_cleanup_tx_ring' drivers/net/ethernet/toshiba/spider_net.c:902: warning: Excess function parameter 'card' description in 'spider_net_cleanup_tx_ring' drivers/net/ethernet/toshiba/spider_net.c:1074: warning: Function parameter or member 'card' not described in 'spider_net_resync_head_ptr' drivers/net/ethernet/toshiba/spider_net.c:1234: warning: Function parameter or member 'napi' not described in 'spider_net_poll' drivers/net/ethernet/toshiba/spider_net.c:1234: warning: Excess function parameter 'netdev' description in 'spider_net_poll' drivers/net/ethernet/toshiba/spider_net.c:1278: warning: Function parameter or member 'p' not described in 'spider_net_set_mac' drivers/net/ethernet/toshiba/spider_net.c:1278: warning: Excess function parameter 'ptr' description in 'spider_net_set_mac' drivers/net/ethernet/toshiba/spider_net.c:1350: warning: Function parameter or member 'error_reg1' not described in 'spider_net_handle_error_irq' drivers/net/ethernet/toshiba/spider_net.c:1350: warning: Function parameter or member 'error_reg2' not described in 'spider_net_handle_error_irq' drivers/net/ethernet/toshiba/spider_net.c:1968: warning: Function parameter or member 't' not described in 'spider_net_link_phy' drivers/net/ethernet/toshiba/spider_net.c:1968: warning: Excess function parameter 'data' description in 'spider_net_link_phy' drivers/net/ethernet/toshiba/spider_net.c:2149: warning: Function parameter or member 'work' not described in 'spider_net_tx_timeout_task' drivers/net/ethernet/toshiba/spider_net.c:2149: warning: Excess function parameter 'data' description in 'spider_net_tx_timeout_task' drivers/net/ethernet/toshiba/spider_net.c:2182: warning: Function parameter or member 'txqueue' not described in 'spider_net_tx_timeout' Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/toshiba/ps3_gelic_net.c:1107: warning: Function parameter or member 'irq' not described in 'gelic_card_interrupt' drivers/net/ethernet/toshiba/ps3_gelic_net.c:1107: warning: Function parameter or member 'ptr' not described in 'gelic_card_interrupt' drivers/net/ethernet/toshiba/ps3_gelic_net.c:1407: warning: Function parameter or member 'txqueue' not described in 'gelic_net_tx_timeout' drivers/net/ethernet/toshiba/ps3_gelic_net.c:1439: warning: Function parameter or member 'napi' not described in 'gelic_ether_setup_netdev_ops' drivers/net/ethernet/toshiba/ps3_gelic_net.c:1639: warning: Function parameter or member 'dev' not described in 'ps3_gelic_driver_probe' drivers/net/ethernet/toshiba/ps3_gelic_net.c:1795: warning: Function parameter or member 'dev' not described in 'ps3_gelic_driver_remove' Reviewed-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): from drivers/net/ethernet/ibm/ibmvnic.c:35: inlined from ‘handle_vpd_rsp’ at drivers/net/ethernet/ibm/ibmvnic.c:4124:3: drivers/net/ethernet/ibm/ibmvnic.c:1362: warning: Function parameter or member 'hdr_field' not described in 'build_hdr_data' drivers/net/ethernet/ibm/ibmvnic.c:1362: warning: Function parameter or member 'skb' not described in 'build_hdr_data' drivers/net/ethernet/ibm/ibmvnic.c:1362: warning: Function parameter or member 'hdr_len' not described in 'build_hdr_data' drivers/net/ethernet/ibm/ibmvnic.c:1362: warning: Function parameter or member 'hdr_data' not described in 'build_hdr_data' drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'hdr_field' not described in 'create_hdr_descs' drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'hdr_data' not described in 'create_hdr_descs' drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'len' not described in 'create_hdr_descs' drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'hdr_len' not described in 'create_hdr_descs' drivers/net/ethernet/ibm/ibmvnic.c:1423: warning: Function parameter or member 'scrq_arr' not described in 'create_hdr_descs' drivers/net/ethernet/ibm/ibmvnic.c:1474: warning: Function parameter or member 'txbuff' not described in 'build_hdr_descs_arr' drivers/net/ethernet/ibm/ibmvnic.c:1474: warning: Function parameter or member 'num_entries' not described in 'build_hdr_descs_arr' drivers/net/ethernet/ibm/ibmvnic.c:1474: warning: Function parameter or member 'hdr_field' not described in 'build_hdr_descs_arr' drivers/net/ethernet/ibm/ibmvnic.c:1832: warning: Function parameter or member 'adapter' not described in 'do_change_param_reset' drivers/net/ethernet/ibm/ibmvnic.c:1832: warning: Function parameter or member 'rwi' not described in 'do_change_param_reset' drivers/net/ethernet/ibm/ibmvnic.c:1832: warning: Function parameter or member 'reset_state' not described in 'do_change_param_reset' drivers/net/ethernet/ibm/ibmvnic.c:1911: warning: Function parameter or member 'adapter' not described in 'do_reset' drivers/net/ethernet/ibm/ibmvnic.c:1911: warning: Function parameter or member 'rwi' not described in 'do_reset' drivers/net/ethernet/ibm/ibmvnic.c:1911: warning: Function parameter or member 'reset_state' not described in 'do_reset' Signed-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/ti/am65-cpts.c:736: warning: Function parameter or member 'en' not described in 'am65_cpts_rx_enable' drivers/net/ethernet/ti/am65-cpts.c:736: warning: Excess function parameter 'skb' description in 'am65_cpts_rx_enable' Reviewed-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/ti/am65-cpsw-qos.c:364: warning: Function parameter or member 'ndev' not described in 'am65_cpsw_timer_set' drivers/net/ethernet/ti/am65-cpsw-qos.c:364: warning: Function parameter or member 'est_new' not described in 'am65_cpsw_timer_set' Reviewed-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/net/xen-netback/xenbus.c:419: warning: Function parameter or member 'dev' not described in 'frontend_changed' drivers/net/xen-netback/xenbus.c:419: warning: Function parameter or member 'frontend_state' not described in 'frontend_changed' drivers/net/xen-netback/xenbus.c:1001: warning: Function parameter or member 'dev' not described in 'netback_probe' drivers/net/xen-netback/xenbus.c:1001: warning: Function parameter or member 'id' not described in 'netback_probe' Reviewed-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'dev' not described in 'try_toggle_control_gpio' drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'desc' not described in 'try_toggle_control_gpio' drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'name' not described in 'try_toggle_control_gpio' drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'index' not described in 'try_toggle_control_gpio' drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'value' not described in 'try_toggle_control_gpio' drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'nsdelay' not described in 'try_toggle_control_gpio' Signed-off-by:
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- 16 Jan, 2021 24 commits
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Pravin B Shelar authored
Following patch add support for flow based tunneling API to send and recv GTP tunnel packet over tunnel metadata API. This would allow this device integration with OVS or eBPF using flow based tunneling APIs. Signed-off-by:
Pravin B Shelar <pbshelar@fb.com> Link: https://lore.kernel.org/r/20210110070021.26822-1-pbshelar@fb.comSigned-off-by:
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Yejune Deng authored
In bictcp_reset(), use memset and offsetof instead of = 0. Signed-off-by:
Yejune Deng <yejune.deng@gmail.com> Link: https://lore.kernel.org/r/1610597696-128610-1-git-send-email-yejune.deng@gmail.comSigned-off-by:
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Menglong Dong authored
Replace some checks for ETH_P_8021Q and ETH_P_8021AD in drivers/net/tap.c with eth_type_vlan. Signed-off-by:
Menglong Dong <dong.menglong@zte.com.cn> Link: https://lore.kernel.org/r/20210115023238.4681-1-dong.menglong@zte.com.cnSigned-off-by:
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Geliang Tang authored
Use the struct member w of the struct urelease_work directly instead of casting it. Signed-off-by:
Geliang Tang <geliangtang@gmail.com> Link: https://lore.kernel.org/r/f0ed86d6d54ac0834bd2e161d172bf7bb5647cf7.1610683862.git.geliangtang@gmail.comSigned-off-by:
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Jakub Kicinski authored
Vladimir Oltean says: ==================== Configuring congestion watermarks on ocelot switch using devlink-sb In some applications, it is important to create resource reservations in the Ethernet switches, to prevent background traffic, or deliberate attacks, from inducing denial of service into the high-priority traffic. These patches give the user some knobs to turn. The ocelot switches support per-port and per-port-tc reservations, on ingress and on egress. The resources that are monitored are packet buffers (in cells of 60 bytes each) and frame references. The frames that exceed the reservations can optionally consume from sharing watermarks which are not per-port but global across the switch. There are 10 sharing watermarks, 8 of them are per traffic class and 2 are per drop priority. I am configuring the hardware using the best of my knowledge, and mostly through trial and error. Same goes for devlink-sb integration. Feedback is welcome. ==================== Link: https://lore.kernel.org/r/20210115021120.3055988-1-olteanv@gmail.comSigned-off-by:
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Vladimir Oltean authored
Using devlink-sb, we can configure 12/16 (the important 75%) of the switch's controlling watermarks for congestion drops, and we can monitor 50% of the watermark occupancies (we can monitor the reservation watermarks, but not the sharing watermarks, which are exposed as pool sizes). The following definitions can be made: SB_BUF=0 # The devlink-sb for frame buffers SB_REF=1 # The devlink-sb for frame references POOL_ING=0 # The pool for ingress traffic. Both devlink-sb instances # have one of these. POOL_EGR=1 # The pool for egress traffic. Both devlink-sb instances # have one of these. Editing the hardware watermarks is done in the following way: BUF_xxxx_I is accessed when sb=$SB_BUF and pool=$POOL_ING REF_xxxx_I is accessed when sb=$SB_REF and pool=$POOL_ING BUF_xxxx_E is accessed when sb=$SB_BUF and pool=$POOL_EGR REF_xxxx_E is accessed when sb=$SB_REF and pool=$POOL_EGR Configuring the sharing watermarks for COL_SHR(dp=0) is done implicitly by modifying the corresponding pool size. By default, the pool size has maximum size, so this can be skipped. devlink sb pool set pci/0000:00:00.5 sb $SB_BUF pool $POOL_ING \ size 129840 thtype static Since by default there is no buffer reservation, the above command has maxed out BUF_COL_SHR_I(dp=0). Configuring the per-port reservation watermark (P_RSRV) is done in the following way: devlink sb port pool set pci/0000:00:00.5/0 sb $SB_BUF \ pool $POOL_ING th 1000 The above command sets BUF_P_RSRV_I(port 0) to 1000 bytes. After this command, the sharing watermarks are internally reconfigured with 1000 bytes less, i.e. from 129840 bytes to 128840 bytes. Configuring the per-port-tc reservation watermarks (Q_RSRV) is done in the following way: for tc in {0..7}; do devlink sb tc bind set pci/0000:00:00.5/0 sb 0 tc $tc \ type ingress pool $POOL_ING \ th 3000 done The above command sets BUF_Q_RSRV_I(port 0, tc 0..7) to 3000 bytes. The sharing watermarks are again reconfigured with 24000 bytes less. Signed-off-by:Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by:
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Vladimir Oltean authored
This is meant to be a gentle introduction into the world of watermarks on ocelot. The code is placed in ocelot_devlink.c because it will be integrated with devlink, even if it isn't right now. My first step was intended to be to replicate the default configuration of the congestion watermarks programatically, since they are now going to be tuned by the user. But after studying and understanding through trial and error how they work, I now believe that the configuration used out of reset does not do justice to the word "reservation", since the sum of all reservations exceeds the total amount of resources (otherwise said, all reservations cannot be fulfilled at the same time, which means that, contrary to the reference manual, they don't guarantee anything). As an example, here's a dump of the reservation watermarks for frame buffers, for port 0 (for brevity, the ports 1-6 were omitted, but they have the same configuration): BUF_Q_RSRV_I(port 0, prio 0) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 1) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 2) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 3) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 4) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 5) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 6) = max 3000 bytes BUF_Q_RSRV_I(port 0, prio 7) = max 3000 bytes Otherwise said, every port-tc has an ingress reservation of 3000 bytes, and there are 7 ports in VSC9959 Felix (6 user ports and 1 CPU port). Concentrating only on the ingress reservations, there are, in total, 8 [traffic classes] x 7 [ports] x 3000 [bytes] = 168,000 bytes of memory reserved on ingress. But, surprise, Felix only has 128 KB of packet buffer in total... A similar thing happens with Seville, which has a larger packet buffer, but also more ports, and the default configuration is also overcommitted. This patch disables the (apparently) bogus reservations and moves all resources to the shared area. This way, real reservations can be set up by the user, using devlink-sb. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Vladimir Oltean authored
Add devlink integration into the mscc_ocelot switchdev driver. All physical ports (i.e. the unused ones as well) except the CPU port module at ocelot->num_phys_ports are registered with devlink, and that requires keeping the devlink_port structure outside struct ocelot_port_private, since the latter has a 1:1 mapping with a struct net_device (which does not exist for unused ports). Since we use devlink_port_type_eth_set to link the devlink port to the net_device, we can as well remove the .ndo_get_phys_port_name and .ndo_get_port_parent_id implementations, since devlink takes care of retrieving the port name and number automatically, once .ndo_get_devlink_port is implemented. Note that the felix DSA driver is already integrated with devlink by default, since that is a thing that the DSA core takes care of. This is the reason why these devlink stubs were put in ocelot_net.c and not in the common library. It is also the reason why ocelot::devlink is a pointer and not a full structure embedded inside struct ocelot: because the mscc_ocelot driver allocates that by itself (as the container of struct ocelot, in fact), but in the case of felix, it is DSA who allocates the devlink, and felix just propagates the pointer towards struct ocelot. Signed-off-by:
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Vladimir Oltean authored
This is a leftover of commit 69df578c ("net: mscc: ocelot: eliminate confusion between CPU and NPI port") which renamed that function. Signed-off-by:
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Vladimir Oltean authored
We should be moving anything that isn't DSA-specific or SoC-specific out of the felix DSA driver, and into the common mscc_ocelot switch library. The number of traffic classes is one of the aspects that is common between all ocelot switches, so it belongs in the library. This patch also makes seville use 8 TX queues, and therefore enables prioritization via the QOS_CLASS field in the NPI injection header. Signed-off-by:
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Vladimir Oltean authored
In general it is desirable that cleanup is the reverse process of setup. In this case I am not seeing any particular issue, but with the introduction of devlink-sb for felix, a non-obvious decision had to be made as to where to put its cleanup method. When there's a convention in place, that decision becomes obvious. Signed-off-by:
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Vladimir Oltean authored
The devlink function pointer names are super long, and they would break the alignment. So reindent the existing ops now by adding one tab. Signed-off-by:
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Vladimir Oltean authored
Switches that care about QoS might have hardware support for reserving buffer pools for individual ports or traffic classes, and configuring their sizes and thresholds. Through devlink-sb (shared buffers), this is all configurable, as well as their occupancy being viewable. Add the plumbing in DSA for these operations. Individual drivers still need to call devlink_sb_register() with the shared buffers they want to expose. A helper was not created in DSA for this purpose (unlike, say, dsa_devlink_params_register), since in my opinion it does not bring any benefit over plainly calling devlink_sb_register() directly. Signed-off-by:
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Vladimir Oltean authored
We'll need to read back the watermark thresholds and occupancy from hardware (for devlink-sb integration), not only to write them as we did so far in ocelot_port_set_maxlen. So introduce 2 new functions in struct ocelot_ops, similar to wm_enc, and implement them for the 3 supported mscc_ocelot switches. Remove the INUSE and MAXUSE unpacking helpers for the QSYS_RES_STAT register, because that doesn't scale with the number of switches that mscc_ocelot supports now. They have different bit widths for the watermarks, and we need function pointers to abstract that difference away. Signed-off-by:
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Vladimir Oltean authored
Instead of reading these values from the reference manual and writing them down into the driver, it appears that the hardware gives us the option of detecting them dynamically. The number of frame references corresponds to what the reference manual notes, however it seems that the frame buffers are reported as slightly less than the books would indicate. On VSC9959 (Felix), the books say it should have 128KB of packet buffer, but the registers indicate only 129840 bytes (126.79 KB). Also, the unit of measurement for FREECNT from the documentation of all these devices is incorrect (taken from an older generation). This was confirmed by Younes Leroul from Microchip support. Not having anything better to do with these values at the moment* (this will change soon), let's just print them. *The frame buffer size is, in fact, used to calculate the tail dropping watermarks. Signed-off-by:
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski authored
Daniel Borkmann says: ==================== pull-request: bpf-next 2021-01-16 1) Extend atomic operations to the BPF instruction set along with x86-64 JIT support, that is, atomic{,64}_{xchg,cmpxchg,fetch_{add,and,or,xor}}, from Brendan Jackman. 2) Add support for using kernel module global variables (__ksym externs in BPF programs) retrieved via module's BTF, from Andrii Nakryiko. 3) Generalize BPF stackmap's buildid retrieval and add support to have buildid stored in mmap2 event for perf, from Jiri Olsa. 4) Various fixes for cross-building BPF sefltests out-of-tree which then will unblock wider automated testing on ARM hardware, from Jean-Philippe Brucker. 5) Allow to retrieve SOL_SOCKET opts from sock_addr progs, from Daniel Borkmann. 6) Clean up driver's XDP buffer init and split into two helpers to init per- descriptor and non-changing fields during processing, from Lorenzo Bianconi. 7) Minor misc improvements to libbpf & bpftool, from Ian Rogers. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (41 commits) perf: Add build id data in mmap2 event bpf: Add size arg to build_id_parse function bpf: Move stack_map_get_build_id into lib bpf: Document new atomic instructions bpf: Add tests for new BPF atomic operations bpf: Add bitwise atomic instructions bpf: Pull out a macro for interpreting atomic ALU operations bpf: Add instructions for atomic_[cmp]xchg bpf: Add BPF_FETCH field / create atomic_fetch_add instruction bpf: Move BPF_STX reserved field check into BPF_STX verifier code bpf: Rename BPF_XADD and prepare to encode other atomics in .imm bpf: x86: Factor out a lookup table for some ALU opcodes bpf: x86: Factor out emission of REX byte bpf: x86: Factor out emission of ModR/M for *(reg + off) tools/bpftool: Add -Wall when building BPF programs bpf, libbpf: Avoid unused function warning on bpf_tail_call_static selftests/bpf: Install btf_dump test cases selftests/bpf: Fix installation of urandom_read selftests/bpf: Move generated test files to $(TEST_GEN_FILES) selftests/bpf: Fix out-of-tree build ... ==================== Link: https://lore.kernel.org/r/20210116012922.17823-1-daniel@iogearbox.netSigned-off-by: -
Tom Rix authored
Defining DEBUG should only be done in development. So remove DEBUG. Signed-off-by:
Tom Rix <trix@redhat.com> Reviewed-by:
Marek Vasut <marex@denx.de> Link: https://lore.kernel.org/r/20210115153128.131026-1-trix@redhat.comSigned-off-by:
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Tom Rix authored
Defining DEBUG should only be done in development. So remove DEBUG. Signed-off-by:
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Tom Rix authored
Defining DEBUG should only be done in development. So remove DEBUG. Signed-off-by:
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Vladimir Oltean authored
As explained in commit 54a0ed0d ("net: dsa: provide an option for drivers to always receive bridge VLANs"), DSA has historically been skipping VLAN switchdev operations when the bridge wasn't in vlan_filtering mode, but the reason why it was doing that has never been clear. So the configure_vlan_while_not_filtering option is there merely to preserve functionality for existing drivers. It isn't some behavior that drivers should opt into. Ideally, when all drivers leave this flag set, we can delete the dsa_port_skip_vlan_configuration() function. New drivers always seem to omit setting this flag, for some reason. So let's reverse the logic: the DSA core sets it by default to true before the .setup() callback, and legacy drivers can turn it off. This way, new drivers get the new behavior by default, unless they explicitly set the flag to false, which is more obvious during review. Remove the assignment from drivers which were setting it to true, and add the assignment to false for the drivers that didn't previously have it. This way, it should be easier to see how many we have left. The following drivers: lan9303, mv88e6060 were skipped from setting this flag to false, because they didn't have any VLAN offload ops in the first place. The Broadcom Starfighter 2 driver calls the common b53_switch_alloc and therefore also inherits the configure_vlan_while_not_filtering=true behavior. Also, print a message through netlink extack every time a VLAN has been skipped. This is mildly annoying on purpose, so that (a) it is at least clear that VLANs are being skipped - the legacy behavior in itself is confusing, and the extack should be much more difficult to miss, unlike kernel logs - and (b) people have one more incentive to convert to the new behavior. No behavior change except for the added prints is intended at this time. $ ip link add br0 type bridge vlan_filtering 0 $ ip link set sw0p2 master br0 [ 60.315148] br0: port 1(sw0p2) entered blocking state [ 60.320350] br0: port 1(sw0p2) entered disabled state [ 60.327839] device sw0p2 entered promiscuous mode [ 60.334905] br0: port 1(sw0p2) entered blocking state [ 60.340142] br0: port 1(sw0p2) entered forwarding state Warning: dsa_core: skipping configuration of VLAN. # This was the pvid $ bridge vlan add dev sw0p2 vid 100 Warning: dsa_core: skipping configuration of VLAN. Signed-off-by:
Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by:
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Christophe JAILLET authored
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'netxen_get_minidump_template()' GFP_KERNEL can be used because its only caller, ' netxen_setup_minidump(()' already uses it and no lock is acquired in the between. When memory is allocated in other function in 'netxen_nic_ctx.c' GFP_KERNEL can be used because the call chain already uses GFP_KERNEL and no lock is taken in the between. The call chain is: netxen_nic_attach() --> netxen_alloc_sw_resources() : already uses GFP_KERNEL --> netxen_alloc_hw_resources() --> nx_fw_cmd_create_rx_ctx() --> nx_fw_cmd_create_tx_ctx() When memory is allocated in 'netxen_init_dummy_dma()' GFP_KERNEL can be used because its only call chain already uses it and no lock is acquired in the between. The call chain is: --> netxen_start_firmware --> netxen_request_firmware() --> request_firmware() --> _request_firmware(() --> fw_get_filesystem_firmware() --> __getname() : already uses GFP_KERNEL --> netxen_init_dummy_dma() @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by:Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20210113202519.487672-1-christophe.jaillet@wanadoo.frSigned-off-by:
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Jakub Kicinski authored
Tobias Waldekranz says: ==================== net: dsa: mv88e6xxx: LAG fixes The kernel test robot kindly pointed out that Global 2 support in mv88e6xxx is optional. This also made me realize that we should verify that the hardware actually supports LAG offloading before trying to configure it. ==================== Link: https://lore.kernel.org/r/20210115125259.22542-1-tobias@waldekranz.comSigned-off-by:
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Tobias Waldekranz authored
There are chips that do have Global 2 registers, and therefore trunk mapping/mask tables are not available. Refuse the offload as early as possible on those devices. Fixes: 57e661aa ("net: dsa: mv88e6xxx: Link aggregation support") Signed-off-by:
Tobias Waldekranz <tobias@waldekranz.com> Reviewed-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
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Tobias Waldekranz authored
Support for Global 2 registers is build-time optional. In the case where it was not enabled the build would fail as no "dummy" implementation of these functions was available. Fixes: 57e661aa ("net: dsa: mv88e6xxx: Link aggregation support") Reported-by:
kernel test robot <lkp@intel.com> Reviewed-by:
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