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path: root/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
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2024-04-11bnxt_en: Skip ethtool RSS context configuration in ifdown statePavan Chebbi1-0/+5
The current implementation requires the ifstate to be up when configuring the RSS contexts. It will try to fetch the RX ring IDs and will crash if it is in ifdown state. Return error if !netif_running() to prevent the crash. An improved implementation is in the works to allow RSS contexts to be changed while in ifdown state. Fixes: b3d0083caf9a ("bnxt_en: Support RSS contexts in ethtool .{get|set}_rxfh()") Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20240409215431.41424-2-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-29bnxt_en: Support adding ntuple rules on RSS contextsPavan Chebbi1-9/+24
When the user wants to add an ntuple filter to an RSS context, select the appropriate VNIC belonging to the selected RSS context and add the VNIC destination rule. Make the necessary changes to bnxt_add_ntuple_cls_rule(). Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240325222902.220712-13-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-29bnxt_en: Support RSS contexts in ethtool .{get|set}_rxfh()Pavan Chebbi1-2/+146
Support up to 32 RSS contexts per device if supported by the device. Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240325222902.220712-11-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-29bnxt_en: Refactor bnxt_set_rxfh()Michael Chan1-13/+27
Add a new bnxt_modify_rss() function to modify the RSS key and RSS indirection table. The new function can modify the parameters for the default context or additional contexts. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240325222902.220712-10-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-29bnxt_en: Introduce rss ctx structure, alloc/free functionsPavan Chebbi1-0/+2
Add struct bnxt_rss_ctx, related storage lists, required defines, and its alloc/free functions. Later patches will use them in order to support multiple RSS contexts. Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240325222902.220712-6-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-22bnxt_en: Define BNXT_VNIC_DEFAULT for the default vnic indexPavan Chebbi1-2/+2
Replace hard coded 0 index with more meaningful BNXT_VNIC_DEFAULT. Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-09bnxt_en: Add RSS support for IPSEC headersAjit Khaparde1-2/+32
IPSec uses two distinct protocols, Authentication Header (AH) and Encapsulating Security Payload (ESP). Add support to configure RSS based on AH and ESP headers. This functionality will be enabled based on the capabilities indicated by the firmware in HWRM_VNIC_QCAPS. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240205223202.25341-14-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt_en: Invalidate user filters when neededPavan Chebbi1-1/+2
The cached user filters slated to be reapplied need to be cleared if configured MAC changes, RSS key changes, number of rings changes, or ntuple is disabled. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240205223202.25341-13-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt_en: Add support for user configured RSS keyPavan Chebbi1-2/+4
Store the user configured or generated Toeplitz key in bp->rss_hash_key. The key stays constant across ifdown/ifup unless updated by the user. Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240205223202.25341-12-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt_en: Add drop action support for ntupleVikas Gupta1-2/+11
Add drop action for protocols TCP/UDP/ICMP 1) Drop action for TCP/UDP is supported via flow type tcp4/udp4/tcp6/udp6. 2) Drop action for ICMPV4/ICMPV6/wildcard is supported via flow type ipv4/ipv6. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240205223202.25341-7-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt_en: Enhance ethtool ntuple support for ip flows besides TCP/UDPVikas Gupta1-18/+106
Enable flow type ipv4/ipv6 1) for protocols ICMPV4 and ICMPV6. 2) for wildcard match. Wildcard matches to TCP/UDP/ICMP. Note that, IPPROTO_RAW(255) i.e. a reserved protocol considered for a wildcard. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240205223202.25341-6-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt_en: implement fully specified 5-tuple masksEdwin Peer1-101/+41
Support subfield masking for IP addresses and ports. Previously, only entire fields could be included or excluded in NTUPLE filters. Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://lore.kernel.org/r/20240205223202.25341-5-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt_en: Support ethtool -n to display ether filters.Michael Chan1-1/+37
Implement ETHTOOL_GRXCLSRULE for the user defined ether filters. Use the common functions to walk the L2 filter hash table. Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://lore.kernel.org/r/20240205223202.25341-4-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt_en: Add ethtool -N support for ether filters.Michael Chan1-3/+66
Add ETHTOOL_SRXCLSRLINS and ETHTOOL_SRXCLSRLDEL support for inserting and deleting L2 ether filter rules. Destination MAC address and optional VLAN are supported for each filter entry. This is currently only supported on older BCM573XX and BCM574XX chips only. Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240205223202.25341-3-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt_en: Use firmware provided maximum filter counts.Michael Chan1-2/+2
While individual filter structures are allocated as needed, there is an array to keep track of the software filter IDs that we allocate ahead of time. Rather than relying on a fixed maximum filter count to allocate this array, get the maximum from the firmware when available. Move these filter related maximum counts queried from the firmware to the bnxt_hw_resc struct. If the firmware is not providing these maximum counts, fall back to the hard-coded constant. Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://lore.kernel.org/r/20240205223202.25341-2-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-09bnxt: convert EEE handling to use linkmode bitmapsHeiner Kallweit1-38/+27
Convert EEE handling to use linkmode bitmaps. This prepares for removing the legacy bitmaps from struct ethtool_keee. No functional change intended. When replacing _bnxt_fw_to_ethtool_adv_spds() with _bnxt_fw_to_linkmode(), remove the fw_pause argument because it's always passed as 0. Note: There's a discussion on whether the underlying implementation is correct, but it's independent of this mechanical conversion w/o functional change. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/9123bf18-a0d0-404e-a7c4-d6c466b4c5e8@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-31ethtool: add suffix _u32 to legacy bitmap members of struct ethtool_keeeHeiner Kallweit1-7/+7
This is in preparation of using the existing names for linkmode bitmaps. Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-31ethtool: replace struct ethtool_eee with a new struct ethtool_keee on kernel ↵Heiner Kallweit1-3/+3
side In order to pass EEE link modes beyond bit 32 to userspace we have to complement the 32 bit bitmaps in struct ethtool_eee with linkmode bitmaps. Therefore, similar to ethtool_link_settings and ethtool_link_ksettings, add a struct ethtool_keee. In a first step it's an identical copy of ethtool_eee. This patch simply does a s/ethtool_eee/ethtool_keee/g for all users. No functional change intended. Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-20bnxt_en: Fix possible crash after creating sw mqprio TCsMichael Chan1-2/+2
The driver relies on netdev_get_num_tc() to get the number of HW offloaded mqprio TCs to allocate and free TX rings. This won't work and can potentially crash the system if software mqprio or taprio TCs have been setup. netdev_get_num_tc() will return the number of software TCs and it may cause the driver to allocate or free more TX rings that it should. Fix it by adding a bp->num_tc field to store the number of HW offload mqprio TCs for the device. Use bp->num_tc instead of netdev_get_num_tc(). This fixes a crash like this: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 42b8404067 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 120 PID: 8661 Comm: ifconfig Kdump: loaded Tainted: G OE 5.18.16 #1 Hardware name: Lenovo ThinkSystem SR650 V3/SB27A92818, BIOS ESE114N-2.12 04/25/2023 RIP: 0010:bnxt_hwrm_cp_ring_alloc_p5+0x10/0x90 [bnxt_en] Code: 41 5c 41 5d 41 5e c3 cc cc cc cc 41 8b 44 24 08 66 89 03 eb c6 e8 b0 f1 7d db 0f 1f 44 00 00 41 56 41 55 41 54 55 48 89 fd 53 <48> 8b 06 48 89 f3 48 81 c6 28 01 00 00 0f b6 96 13 ff ff ff 44 8b RSP: 0018:ff65907660d1fa88 EFLAGS: 00010202 RAX: 0000000000000010 RBX: ff4dde1d907e4980 RCX: f400000000000000 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ff4dde1d907e4980 RBP: ff4dde1d907e4980 R08: 000000000000000f R09: 0000000000000000 R10: ff4dde5f02671800 R11: 0000000000000008 R12: 0000000088888889 R13: 0500000000000000 R14: 00f0000000000000 R15: ff4dde5f02671800 FS: 00007f4b126b5740(0000) GS:ff4dde9bff600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000416f9c6002 CR4: 0000000000771ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> bnxt_hwrm_ring_alloc+0x204/0x770 [bnxt_en] bnxt_init_chip+0x4d/0x680 [bnxt_en] ? bnxt_poll+0x1a0/0x1a0 [bnxt_en] __bnxt_open_nic+0xd2/0x740 [bnxt_en] bnxt_open+0x10b/0x220 [bnxt_en] ? raw_notifier_call_chain+0x41/0x60 __dev_open+0xf3/0x1b0 __dev_change_flags+0x1db/0x250 dev_change_flags+0x21/0x60 devinet_ioctl+0x590/0x720 ? avc_has_extended_perms+0x1b7/0x420 ? _copy_from_user+0x3a/0x60 inet_ioctl+0x189/0x1c0 ? wp_page_copy+0x45a/0x6e0 sock_do_ioctl+0x42/0xf0 ? ioctl_has_perm.constprop.0.isra.0+0xbd/0x120 sock_ioctl+0x1ce/0x2e0 __x64_sys_ioctl+0x87/0xc0 do_syscall_64+0x59/0x90 ? syscall_exit_work+0x103/0x130 ? syscall_exit_to_user_mode+0x12/0x30 ? do_syscall_64+0x69/0x90 ? exc_page_fault+0x62/0x150 Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.") Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com> Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240117234515.226944-6-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-20bnxt_en: Fix RSS table entries calculation for P5_PLUS chipsMichael Chan1-1/+2
The existing formula used in the driver to calculate the number of RSS table entries is to round up the number of RX rings to the next integer multiples of 64 (e.g. 64, 128, 192, ..). This is incorrect. The valid values supported by the chip are 64, 128, 256, 512 only (power of 2 starting from 64). When the number of RX rings is greater than 128, the entry size will likely be wrong. Firmware will round down the invalid value (e.g. 192 rounded down to 128) provided by the driver, causing some RSS rings to not receive any packets. We already have an existing function bnxt_calc_nr_ring_pages() to do this calculation. Use it in bnxt_get_nr_rss_ctxs() to calculate the number of RSS contexts correctly for P5_PLUS chips. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Fixes: 7b3af4f75b81 ("bnxt_en: Add RSS support for 57500 chips.") Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20240117234515.226944-4-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-09bnxt_en: Fix RCU locking for ntuple filters in bnxt_srxclsrldel()Michael Chan1-10/+11
After looking up an ntuple filter from a RCU hash list, the rcu_read_unlock() call should be made after reading the structure, or after determining that the filter cannot age out (by aRFS). The existing code was calling rcu_read_unlock() too early in bnxt_srxclsrldel(). As suggested by Simon Horman, change the code to handle the error case of fltr_base not found in the if condition. The code looks cleaner this way. Fixes: 8d7ba028aa9a ("bnxt_en: Add support for ntuple filter deletion by ethtool.") Suggested-by: Simon Horman <horms@kernel.org> Reported-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/netdev/20240104145955.5a6df702@kernel.org/ Signed-off-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240105235439.28282-3-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-02bnxt_en: Add support for ntuple filter deletion by ethtool.Michael Chan1-0/+29
Add logic to delete a user specified ntuple filter from ethtool. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-02bnxt_en: Add support for ntuple filters added from ethtool.Michael Chan1-5/+194
Add support for adding user defined ntuple TCP/UDP filters. These filters are similar to aRFS filters except that they don't get aged. Source IP, destination IP, source port, or destination port can be unspecifed as wildcard. At least one of these tuples must be specifed. If a tuple is specified, the full mask must be specified. All ntuple related ethtool functions are now no longer compiled only for CONFIG_RFS_ACCEL. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-02bnxt_en: Add ntuple matching flags to the bnxt_ntuple_filter structure.Michael Chan1-25/+33
aRFS filters match all 5 tuples. User defined ntuple filters may specify some of the tuples as wildcards. To support that, we add the ntuple_flags to the bnxt_ntuple_filter struct to specify which tuple fields are to be matched. The matching tuple fields will then be passed to the firmware in bnxt_hwrm_cfa_ntuple_filter_alloc() to create the proper filter. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-02bnxt_en: Refactor the hash table logic for ntuple filters.Michael Chan1-28/+57
Generalize the ethtool logic that walks the ntuple hash table now that we have the common bnxt_filter_base structure. This will allow the code to easily extend to cover user defined ntuple or ether filters. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-02bnxt_en: Refactor bnxt_ntuple_filter structure.Michael Chan1-5/+5
This is in preparation to support user defined L2 (ether) filters, which will have many similarities with ntuple filters. Refactor bnxt_ntuple_filter structure to have a bnxt_filter_base structure that can be re-used by the L2 filters. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-15/+4
Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/ethernet/intel/iavf/iavf_ethtool.c 3a0b5a2929fd ("iavf: Introduce new state machines for flow director") 95260816b489 ("iavf: use iavf_schedule_aq_request() helper") https://lore.kernel.org/all/84e12519-04dc-bd80-bc34-8cf50d7898ce@intel.com/ drivers/net/ethernet/broadcom/bnxt/bnxt.c c13e268c0768 ("bnxt_en: Fix HWTSTAMP_FILTER_ALL packet timestamp logic") c2f8063309da ("bnxt_en: Refactor RX VLAN acceleration logic.") a7445d69809f ("bnxt_en: Add support for new RX and TPA_START completion types for P7") 1c7fd6ee2fe4 ("bnxt_en: Rename some macros for the P5 chips") https://lore.kernel.org/all/20231211110022.27926ad9@canb.auug.org.au/ drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c bd6781c18cb5 ("bnxt_en: Fix wrong return value check in bnxt_close_nic()") 84793a499578 ("bnxt_en: Skip nic close/open when configuring tstamp filters") https://lore.kernel.org/all/20231214113041.3a0c003c@canb.auug.org.au/ drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c 3d7a3f2612d7 ("net/mlx5: Nack sync reset request when HotPlug is enabled") cecf44ea1a1f ("net/mlx5: Allow sync reset flow when BF MGT interface device is present") https://lore.kernel.org/all/20231211110328.76c925af@canb.auug.org.au/ No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14net: ethtool: pass a pointer to parameters to get/set_rxfh ethtool opsAhmed Zaki1-14/+14
The get/set_rxfh ethtool ops currently takes the rxfh (RSS) parameters as direct function arguments. This will force us to change the API (and all drivers' functions) every time some new parameters are added. This is part 1/2 of the fix, as suggested in [1]: - First simplify the code by always providing a pointer to all params (indir, key and func); the fact that some of them may be NULL seems like a weird historic thing or a premature optimization. It will simplify the drivers if all pointers are always present. - Then make the functions take a dev pointer, and a pointer to a single struct wrapping all arguments. The set_* should also take an extack. Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1] Suggested-by: Jakub Kicinski <kuba@kernel.org> Suggested-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-2-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-13bnxt_en: add rx_filter_miss extended statsDamodharam Ammepalli1-0/+1
rx_filter_miss counter is newly added to the rx_port_stats_ext stats structure for newer chips. Newer firmware will return the structure size that includes this counter. Add this entry to the bnxt_port_stats_ext_arr array and the ethtool -S code will pick up this counter if it is supported. Signed-off-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231212005122.2401-11-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-09bnxt_en: Fix wrong return value check in bnxt_close_nic()Kalesh AP1-15/+4
The wait_event_interruptible_timeout() function returns 0 if the timeout elapsed, -ERESTARTSYS if it was interrupted by a signal, and the remaining jiffies otherwise if the condition evaluated to true before the timeout elapsed. Driver should have checked for zero return value instead of a positive value. MChan: Print a warning for -ERESTARTSYS. The close operation will proceed anyway when wait_event_interruptible_timeout() returns for any reason. Since we do the close no matter what, we should not return this error code to the caller. Change bnxt_close_nic() to a void function and remove all error handling from some of the callers. Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.") Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com> Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231208001658.14230-4-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-05bnxt_en: Report the new ethtool link modes in the new firmware interfaceMichael Chan1-20/+151
Add new look up entries to convert the new supported speeds, advertised speeds, etc to ethtool link modes. Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231201223924.26955-15-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-05bnxt_en: Support force speed using the new HWRM fieldsMichael Chan1-6/+46
Modify bnxt_force_link_speed() to support the new speeds stored in link_info->support_speeds2, including the new 400G speed. Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231201223924.26955-14-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-05bnxt_en: Support new firmware link parametersMichael Chan1-0/+10
Newer firmware supporting PAM4 112Gbps speeds use new parameters in firmware message structures. Detect the new firmware capability and add basic logic to report and store these new fields. Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com> Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com> Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231201223924.26955-13-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-05bnxt_en: Refactor ethtool speeds logicMichael Chan1-26/+61
Add helper functions to refactor the logic that converts firmware speed masks to ethtool speeds. Pass the phy_flags to bnxt_get_ethtool_speeds() and the call chain. The refactoring and the phy_flags will be needed when adding support for the new speeds in the next patches. Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231201223924.26955-12-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-05bnxt_en: Add support for new RX and TPA_START completion types for P7Michael Chan1-1/+2
These new completion types are supported on the new P7 chips. These new types have commonalities with the legacy types. After the refactoring, we mainly have to add new functions to handle the the new meta data formats and the RX hash information in the new types. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231201223924.26955-11-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-05bnxt_en: Refactor RSS capability fieldsAjit Khaparde1-3/+3
Add a new rss_cap field in the per device struct bnxt and move all the RSS capability fields there. It will be easier to add new RSS capabilities for the new P7 chips. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231201223924.26955-7-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-05bnxt_en: Define basic P7 macrosMichael Chan1-1/+1
Repurpose the BNXT_FLAG_CHIP_SR2 flag by renaming it to BNXT_FLAG_CHIP_P7 since the SR2 chip never went to production. The SR2 statictics structure is also renamed for the P7 chip. Define the basic P7 doorbell bits (Epoch. Toggle, etc) and implement the Epoch bit logic. The next higher bit beyond the legal doorbell mask is the Epoch bit used for doorbells on P7 chips. This bit is used by the chip to detect dropped doorbells. The 57608 chip ID belonging to the P7 family is also defined. Note that the PCI ID is not added until the last patch in the series. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231201223924.26955-4-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-22bnxt_en: Rename some macros for the P5 chipsRandy Schacher1-3/+3
In preparation to support a new P7 chip which has a lot of similarities with the P5 chip, rename the BNXT_FLAG_CHIP_P5 flag to BNXT_FLAG_CHIP_P5_PLUS. This will make it clear that the flag is for P5 and newer chips. Also, since there are no additional P5 variants in production, rename BNXT_FLAG_CHIP_P5_THOR() to BNXT_FLAG_CHIP_P5() to keep the naming more simple. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Randy Schacher <stuart.schacher@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231120234405.194542-14-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-15bnxt_en: Use existing MSIX vectors for all mqprio TX ringsMichael Chan1-1/+2
We can now fully support sharing the same MSIX for all mqprio TX rings belonging to the same ethtool channel with the new infrastructure: 1. Allocate the proper entries for cp_ring_arr in struct bnxt_cp_ring_info to support the additional TX rings. 2. Populate the tx_ring array in struct bnxt_napi for all TX rings sharing the same NAPI. 3. bnxt_num_tx_to_cp() returns the proper NQ/completion rings to support the TX rings in the input. 4. Adjust bnxt_get_num_ring_stats() for the reduced number of ring counters with the new scheme. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-15bnxt_en: Add helper to get the number of CP rings required for TX ringsMichael Chan1-2/+4
Up until now, each TX ring always requires a completion ring/NQ/MSIX. bnxt_trim_rings() and the assignment of bp->cp_nr_rings always make this assumption. This will no longer be true in the next patches, so we refactor and add helper functions to determine the proper relationship between TX rings and the required completion ring/NQ/MSIX. This patch does not change the 1:1 relationship yet. Note that on P5 chips, each RX and TX ring still requires a completion ring. Only the number of NQs has been reduced. We should no longer call bnxt_trim_rings() to adjust the RX and TX rings on P5 chips. Replace with simple logic to check that RX + TX < CP and adjust accordingly. bnxt_check_rings() should call _bnxt_get_max_rings() to get the raw number of rings instead of bnxt_get_max_rings(). If we are about to create TCs, bnxt_get_max_rings() would not be able to calculate the max rings correctly. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-15bnxt_en: Add completion ring pointer in TX and RX ring structuresMichael Chan1-1/+1
From the TX or RX ring structure, we need to find the corresponding completion ring during initialization. On P5 chips, we use the MSIX/napi entry to locate the completion ring because there is only one RX/TX ring per MSIX. To allow multiple TX rings for each MSIX, we need to add a direct pointer from the TX ring and RX ring structures. This also simplifies the existing logic. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-15bnxt_en: Restructure cp_ring_arr in struct bnxt_cp_ring_infoMichael Chan1-1/+1
The cp_ring_arr is currently a fixed array of 2 pointers for the TX and RX completion rings. These pointers are allocated during ring initialization. Currntly, we support up to 2 completion rings for each MSIX. In order to support more completion rings, we change this fixed array to a pointer and allocate the required entries during ring initialization. This patch keeps the current scheme of allocating only 2 entries when needed. Later patches will expand and allocate more entries when required. Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-27bnxt_en: Fix 2 stray ethtool -S countersMichael Chan1-6/+22
The recent firmware interface change has added 2 counters in struct rx_port_stats_ext. This caused 2 stray ethtool counters to be displayed. Since new counters are added from time to time, fix it so that the ethtool logic will only display up to the maximum known counters. These 2 counters are not used by production firmware yet. Fixes: 754fbf604ff6 ("bnxt_en: Update firmware interface to 1.10.2.171") Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20231026013231.53271-1-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-22bnxt_en: extend media types to supported and autoneg modesEdwin Peer1-120/+153
The current driver code does not accurately report the supported and advertised link modes. It basically always assumes the media type is copper for any particular speed. Utilize the recently added link mode mappings to accurately report fully qualified ethtool link modes for advertised and supported speeds. If the media type is known, we will report the supported link modes for that media only. If the media is not known, we will report all possible supported link modes. The user can now specify any supported link modes (including NRZ and PAM4) to advertise for autoneg. It used to only accept copper NRZ modes. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-22bnxt_en: convert to linkmode_set_bit() APIEdwin Peer1-24/+24
Barring the BNXT_FW_TO_ETHTOOL speed macros, which will be removed in the next patch, update code to use the newer API. No functional change. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-22bnxt_en: refactor speed independent ethtool modesEdwin Peer1-38/+40
A future patch in this series will change the algorithm used to determine ethtool speed and media modes. Extract the handling of the unrelated pause, autoneg modes into an independent function. Also separate FEC handling out of bnxt_fw_to_ethtool_*_spds(). No functional change. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-22bnxt_en: support lane configuration via ethtoolEdwin Peer1-7/+25
Recent kernels support changing the number of link lanes via ethtool. This is useful for determining the appropriate signal mode to use when a given link speed can be achieved using different lane configurations. Accept the ethtool lanes parameter when configuring forced speed. If there is no lanes parameter, select a default. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-22bnxt_en: add infrastructure to lookup ethtool link modeEdwin Peer1-20/+257
Add infrastructure to look up the enum ethtool_link_mode_bit_indices from link information provided by the firmware. The link speed, signal mode, and media type returned by firmware will be used to look up the ethtool link mode. The immediate benefit is that once the link mode is determined, we can now use ethtool_params_from_link_mode() to fill the basic ethtool parameters including the number of lanes. Lanes will be fully supported in the next patch. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-19bnxt_en: Add tx_resets ring counterMichael Chan1-0/+1
Add a new tx_resets ring counter. This counter will be saved as tx_total_resets across any reset. Since we currently do a full reset in bnxt_sched_reset_txr(), the per ring counter will always be cleared during reset. Only the tx_total_resets count will be meaningful and we only display this under ethtool -S. Link: https://lore.kernel.org/netdev/CACKFLimD-bKmJ1tGZOLYRjWzEwxkri-Mw7iFme1x2Dr0twdCeg@mail.gmail.com/ Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20230817231911.165035-7-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-19bnxt_en: Display the ring error counters under ethtool -SMichael Chan1-25/+23
The existing driver displays the sum of 4 ring counters under ethtool -S. These counters are in the array bnxt_sw_func_stats. These counters are summed at the time of ethtool -S and will be lost when the device is reset. Replace these counters with the new total ring error counters added in the last patch. These new counters are saved before reset. ethtool -S will now display the sum of the saved counters plus the current counters. Link: https://lore.kernel.org/netdev/CACKFLimD-bKmJ1tGZOLYRjWzEwxkri-Mw7iFme1x2Dr0twdCeg@mail.gmail.com/ Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com> Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/20230817231911.165035-6-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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