Commit Graph

1358 Commits

Author SHA1 Message Date
Gal Pressman fb035aa9a3 net/mlx5: Fix MTMP register capability offset in MCAM register
[ Upstream commit 1b9f86c6d53245dab087f1b2c05727b5982142ff ]

The MTMP register (0x900a) capability offset is off-by-one, move it to
the right place.

Fixes: 1f507e80c7 ("net/mlx5: Expose NIC temperature via hardware monitoring kernel API")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-12 11:12:54 +02:00
Akiva Goldberger f9caccdd42 net/mlx5: Add a timeout to acquire the command queue semaphore
[ Upstream commit 485d65e1357123a697c591a5aeb773994b247ad7 ]

Prevent forced completion handling on an entry that has not yet been
assigned an index, causing an out of bounds access on idx = -22.
Instead of waiting indefinitely for the sem, blocking flow now waits for
index to be allocated or a sem acquisition timeout before beginning the
timer for FW completion.

Kernel log example:
mlx5_core 0000:06:00.0: wait_func_handle_exec_timeout:1128:(pid 185911): cmd[-22]: CREATE_UCTX(0xa04) No done completion

Fixes: 8e715cd613 ("net/mlx5: Set command entry semaphore up once got index free")
Signed-off-by: Akiva Goldberger <agoldberger@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20240509112951.590184-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-12 11:11:53 +02:00
Leon Romanovsky 9a624a5f95 RDMA/mlx5: Fix fortify source warning while accessing Eth segment
[ Upstream commit 4d5e86a56615cc387d21c629f9af8fb0e958d350 ]

 ------------[ cut here ]------------
 memcpy: detected field-spanning write (size 56) of single field "eseg->inline_hdr.start" at /var/lib/dkms/mlnx-ofed-kernel/5.8/build/drivers/infiniband/hw/mlx5/wr.c:131 (size 2)
 WARNING: CPU: 0 PID: 293779 at /var/lib/dkms/mlnx-ofed-kernel/5.8/build/drivers/infiniband/hw/mlx5/wr.c:131 mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]
 Modules linked in: 8021q garp mrp stp llc rdma_ucm(OE) rdma_cm(OE) iw_cm(OE) ib_ipoib(OE) ib_cm(OE) ib_umad(OE) mlx5_ib(OE) ib_uverbs(OE) ib_core(OE) mlx5_core(OE) pci_hyperv_intf mlxdevm(OE) mlx_compat(OE) tls mlxfw(OE) psample nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink mst_pciconf(OE) knem(OE) vfio_pci vfio_pci_core vfio_iommu_type1 vfio iommufd irqbypass cuse nfsv3 nfs fscache netfs xfrm_user xfrm_algo ipmi_devintf ipmi_msghandler binfmt_misc crct10dif_pclmul crc32_pclmul polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 snd_pcsp aesni_intel crypto_simd cryptd snd_pcm snd_timer joydev snd soundcore input_leds serio_raw evbug nfsd auth_rpcgss nfs_acl lockd grace sch_fq_codel sunrpc drm efi_pstore ip_tables x_tables autofs4 psmouse virtio_net net_failover failover floppy
  [last unloaded: mlx_compat(OE)]
 CPU: 0 PID: 293779 Comm: ssh Tainted: G           OE      6.2.0-32-generic #32~22.04.1-Ubuntu
 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
 RIP: 0010:mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]
 Code: 0c 01 00 a8 01 75 25 48 8b 75 a0 b9 02 00 00 00 48 c7 c2 10 5b fd c0 48 c7 c7 80 5b fd c0 c6 05 57 0c 03 00 01 e8 95 4d 93 da <0f> 0b 44 8b 4d b0 4c 8b 45 c8 48 8b 4d c0 e9 49 fb ff ff 41 0f b7
 RSP: 0018:ffffb5b48478b570 EFLAGS: 00010046
 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
 RBP: ffffb5b48478b628 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000000 R11: 0000000000000000 R12: ffffb5b48478b5e8
 R13: ffff963a3c609b5e R14: ffff9639c3fbd800 R15: ffffb5b480475a80
 FS:  00007fc03b444c80(0000) GS:ffff963a3dc00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000556f46bdf000 CR3: 0000000006ac6003 CR4: 00000000003706f0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <TASK>
  ? show_regs+0x72/0x90
  ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]
  ? __warn+0x8d/0x160
  ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]
  ? report_bug+0x1bb/0x1d0
  ? handle_bug+0x46/0x90
  ? exc_invalid_op+0x19/0x80
  ? asm_exc_invalid_op+0x1b/0x20
  ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib]
  mlx5_ib_post_send_nodrain+0xb/0x20 [mlx5_ib]
  ipoib_send+0x2ec/0x770 [ib_ipoib]
  ipoib_start_xmit+0x5a0/0x770 [ib_ipoib]
  dev_hard_start_xmit+0x8e/0x1e0
  ? validate_xmit_skb_list+0x4d/0x80
  sch_direct_xmit+0x116/0x3a0
  __dev_xmit_skb+0x1fd/0x580
  __dev_queue_xmit+0x284/0x6b0
  ? _raw_spin_unlock_irq+0xe/0x50
  ? __flush_work.isra.0+0x20d/0x370
  ? push_pseudo_header+0x17/0x40 [ib_ipoib]
  neigh_connected_output+0xcd/0x110
  ip_finish_output2+0x179/0x480
  ? __smp_call_single_queue+0x61/0xa0
  __ip_finish_output+0xc3/0x190
  ip_finish_output+0x2e/0xf0
  ip_output+0x78/0x110
  ? __pfx_ip_finish_output+0x10/0x10
  ip_local_out+0x64/0x70
  __ip_queue_xmit+0x18a/0x460
  ip_queue_xmit+0x15/0x30
  __tcp_transmit_skb+0x914/0x9c0
  tcp_write_xmit+0x334/0x8d0
  tcp_push_one+0x3c/0x60
  tcp_sendmsg_locked+0x2e1/0xac0
  tcp_sendmsg+0x2d/0x50
  inet_sendmsg+0x43/0x90
  sock_sendmsg+0x68/0x80
  sock_write_iter+0x93/0x100
  vfs_write+0x326/0x3c0
  ksys_write+0xbd/0xf0
  ? do_syscall_64+0x69/0x90
  __x64_sys_write+0x19/0x30
  do_syscall_64+0x59/0x90
  ? do_user_addr_fault+0x1d0/0x640
  ? exit_to_user_mode_prepare+0x3b/0xd0
  ? irqentry_exit_to_user_mode+0x9/0x20
  ? irqentry_exit+0x43/0x50
  ? exc_page_fault+0x92/0x1b0
  entry_SYSCALL_64_after_hwframe+0x72/0xdc
 RIP: 0033:0x7fc03ad14a37
 Code: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
 RSP: 002b:00007ffdf8697fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
 RAX: ffffffffffffffda RBX: 0000000000008024 RCX: 00007fc03ad14a37
 RDX: 0000000000008024 RSI: 0000556f46bd8270 RDI: 0000000000000003
 RBP: 0000556f46bb1800 R08: 0000000000007fe3 R09: 0000000000000000
 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
 R13: 0000556f46bc66b0 R14: 000000000000000a R15: 0000556f46bb2f50
  </TASK>
 ---[ end trace 0000000000000000 ]---

Link: https://lore.kernel.org/r/8228ad34bd1a25047586270f7b1fb4ddcd046282.1706433934.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:19:11 -04:00
Moshe Shemesh c11138f017 net/mlx5: Check capability for fw_reset
[ Upstream commit 5e6107b499f3fc4748109e1d87fd9603b34f1e0d ]

Functions which can't access MFRL (Management Firmware Reset Level)
register, have no use of fw_reset structures or events. Remove fw_reset
structures allocation and registration for fw reset events notifications
for these functions.

Having the devlink param enable_remote_dev_reset on functions that don't
have this capability is misleading as these functions are not allowed to
influence the reset flow. Hence, this patch removes this parameter for
such functions.

In addition, return not supported on devlink reload action fw_activate
for these functions.

Fixes: 38b9f903f2 ("net/mlx5: Handle sync reset request event")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-15 10:48:15 -04:00
Mark Zhang 25f7f28142 IB/mlx5: Don't expose debugfs entries for RRoCE general parameters if not supported
[ Upstream commit 43fdbd140238d44e7e847232719fef7d20f9d326 ]

debugfs entries for RRoCE general CC parameters must be exposed only when
they are supported, otherwise when accessing them there may be a syndrome
error in kernel log, for example:

$ cat /sys/kernel/debug/mlx5/0000:08:00.1/cc_params/rtt_resp_dscp
cat: '/sys/kernel/debug/mlx5/0000:08:00.1/cc_params/rtt_resp_dscp': Invalid argument
$ dmesg
 mlx5_core 0000:08:00.1: mlx5_cmd_out_err:805:(pid 1253): QUERY_CONG_PARAMS(0x824) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x325a82), err(-22)

Fixes: 66fb1d5df6 ("IB/mlx5: Extend debug control for CC parameters")
Reviewed-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Link: https://lore.kernel.org/r/e7ade70bad52b7468bdb1de4d41d5fad70c8b71c.1706433934.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-01 13:35:04 +01:00
Moshe Shemesh 5160ae8da3 net/mlx5: Bridge, fix multicast packets sent to uplink
[ Upstream commit ec7cc38ef9f83553102e84c82536971a81630739 ]

To enable multicast packets which are offloaded in bridge multicast
offload mode to be sent also to uplink, FTE bit uplink_hairpin_en should
be set. Add this bit to FTE for the bridge multicast offload rules.

Fixes: 18c2916cee ("net/mlx5: Bridge, snoop igmp/mld packets")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-31 16:19:02 -08:00
Erez Shitrit 63a77caa1d net/mlx5: Bridge, Enable mcast in smfs steering mode
[ Upstream commit 653b7eb9d74426397c95061fd57da3063625af65 ]

In order to have mcast offloads the driver needs the following:
It should know if that mcast comes from wire port, in addition the flow
should not be marked as any specific source, that way it will give the
flexibility for the driver not to be depended on the way iterator
implemented in the FW.

Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Stable-dep-of: ec7cc38ef9f8 ("net/mlx5: Bridge, fix multicast packets sent to uplink")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-31 16:19:02 -08:00
Patrisious Haddad fdd350fe5e RDMA/mlx5: Send events from IB driver about device affiliation state
[ Upstream commit 0d293714ac32650bfb669ceadf7cc2fad8161401 ]

Send blocking events from IB driver whenever the device is done being
affiliated or if it is removed from an affiliation.

This is useful since now the EN driver can register to those event and
know when a device is affiliated or not.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Link: https://lore.kernel.org/r/a7491c3e483cfd8d962f5f75b9a25f253043384a.1695296682.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Stable-dep-of: 762a55a54eec ("net/mlx5e: Disable IPsec offload support if not FW steering")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-20 17:01:44 +01:00
Leon Romanovsky 1a0d0e97a7 net/mlx5e: Tidy up IPsec NAT-T SA discovery
[ Upstream commit c2bf84f1d1a1595dcc45fe867f0e02b331993fee ]

IPsec NAT-T packets are UDP encapsulated packets over ESP normal ones.
In case they arrive to RX, the SPI and ESP are located in inner header,
while the check was performed on outer header instead.

That wrong check caused to the situation where received rekeying request
was missed and caused to rekey timeout, which "compensated" this failure
by completing rekeying.

Fixes: d659549349 ("net/mlx5e: Support IPsec NAT-T functionality")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-20 17:01:44 +01:00
Leon Romanovsky 17e600e438 net/mlx5e: Honor user choice of IPsec replay window size
[ Upstream commit a5e400a985df8041ed4659ed1462aa9134318130 ]

Users can configure IPsec replay window size, but mlx5 driver didn't
honor their choice and set always 32bits. Fix assignment logic to
configure right size from the beginning.

Fixes: 7db21ef456 ("net/mlx5e: Set IPsec replay sequence numbers")
Reviewed-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-20 17:01:43 +01:00
Leon Romanovsky 8efd7b17a3 net/mlx5: Provide an interface to block change of IPsec capabilities
mlx5 HW can't perform IPsec offload operation simultaneously both on PF
and VFs at the same time. While the previous patches added devlink knobs
to change IPsec capabilities dynamically, there is a need to add a logic
to block such IPsec capabilities for the cases when IPsec is already
configured.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/20230825062836.103744-7-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:08:45 -07:00
Leon Romanovsky 17c8da5a34 net/mlx5: Add IFC bits to support IPsec enable/disable
Add hardware definitions to allow to control IPSec capabilities.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/20230825062836.103744-6-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-27 17:08:45 -07:00
Jakub Kicinski 3c5066c6b0 Merge branch 'mlx5-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Leon Romanovsky says:

====================
mlx5 MACsec RoCEv2 support

From Patrisious:

This series extends previously added MACsec offload support
to cover RoCE traffic either.

In order to achieve that, we need configure MACsec with offload between
the two endpoints, like below:

REMOTE_MAC=10:70:fd:43:71:c0

* ip addr add 1.1.1.1/16 dev eth2
* ip link set dev eth2 up
* ip link add link eth2 macsec0 type macsec encrypt on
* ip macsec offload macsec0 mac
* ip macsec add macsec0 tx sa 0 pn 1 on key 00 dffafc8d7b9a43d5b9a3dfbbf6a30c16
* ip macsec add macsec0 rx port 1 address $REMOTE_MAC
* ip macsec add macsec0 rx port 1 address $REMOTE_MAC sa 0 pn 1 on key 01 ead3664f508eb06c40ac7104cdae4ce5
* ip addr add 10.1.0.1/16 dev macsec0
* ip link set dev macsec0 up

And in a similar manner on the other machine, while noting the keys order
would be reversed and the MAC address of the other machine.

RDMA traffic is separated through relevant GID entries and in case
of IP ambiguity issue - meaning we have a physical GIDs and a MACsec
GIDs with the same IP/GID, we disable our physical GID in order
to force the user to only use the MACsec GID.

v0: https://lore.kernel.org/netdev/20230813064703.574082-1-leon@kernel.org/

* 'mlx5-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
  RDMA/mlx5: Handles RoCE MACsec steering rules addition and deletion
  net/mlx5: Add RoCE MACsec steering infrastructure in core
  net/mlx5: Configure MACsec steering for ingress RoCEv2 traffic
  net/mlx5: Configure MACsec steering for egress RoCEv2 traffic
  IB/core: Reorder GID delete code for RoCE
  net/mlx5: Add MACsec priorities in RDMA namespaces
  RDMA/mlx5: Implement MACsec gid addition and deletion
  net/mlx5: Maintain fs_id xarray per MACsec device inside macsec steering
  net/mlx5: Remove netdevice from MACsec steering
  net/mlx5e: Move MACsec flow steering and statistics database from ethernet to core
  net/mlx5e: Rename MACsec flow steering functions/parameters to suit core naming style
  net/mlx5: Remove dependency of macsec flow steering on ethernet
  net/mlx5e: Move MACsec flow steering operations to be used as core library
  macsec: add functions to get macsec real netdevice and check offload
====================

Link: https://lore.kernel.org/r/20230821073833.59042-1-leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-24 11:32:18 -07:00
Patrisious Haddad 58dbd6428a RDMA/mlx5: Handles RoCE MACsec steering rules addition and deletion
Add RoCE MACsec rules when a gid is added for the MACsec netdevice and
handle their cleanup when the gid is removed or the MACsec SA is deleted.
Also support alias IP for the MACsec device, as long as we don't have
more ips than what the gid table can hold.
In addition handle the case where a gid is added but there are still no
SAs added for the MACsec device, so the rules are added later on when
the SAs are added.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2023-08-20 12:35:24 +03:00
Patrisious Haddad ac7ea1c78f net/mlx5: Add RoCE MACsec steering infrastructure in core
Adds all the core steering helper functions that are needed in order
to setup RoCE steering rules which includes both the RX and TX rules
addition and deletion.
As well as exporting the function to be ready to use from the IB driver
where we expose functions to allow deletion of all rules, which is
needed when a GID is deleted, or a deletion of a specific rule when an SA
is deleted, and a similar manner for the rules addition.

These functions are used in a later patch by IB driver to trigger the
rules addition/deletion when needed.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2023-08-20 12:35:24 +03:00
Patrisious Haddad afcb21d5a8 net/mlx5: Add MACsec priorities in RDMA namespaces
Add MACsec flow steering priorities in RDMA namespaces. This allows
adding tables/rules to forward RoCEv2 traffic to the MACsec crypto
tables in NIC_TX domain, and accept RoCEv2 traffic from NIC_RX domain.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2023-08-20 12:35:24 +03:00
Patrisious Haddad 758ce14aee RDMA/mlx5: Implement MACsec gid addition and deletion
Handle MACsec IP ambiguity issue, since mlx5 hw can't support
programming both the MACsec and the physical gid when they have the same
IP address, because it wouldn't know to whom to steer the traffic.
Hence in such case we delete the physical gid from the hw gid table,
which would then cause all traffic sent over it to fail, and we'll only
be able to send traffic over the MACsec gid.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2023-08-20 12:35:24 +03:00
Patrisious Haddad 2e92f669b8 net/mlx5e: Move MACsec flow steering and statistics database from ethernet to core
Since now MACsec flow steering (macsec_fs) and MACsec statistics (stats)
are maintained by the core driver, move their data as well to be saved
inside core structures instead of staying part of ethernet MACsec database.

In addition cleanup all MACsec stats functions from the ethernet MACsec
code and move what's needed to be part of macsec_fs instead.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2023-08-20 12:35:23 +03:00
Shay Drory a41cb59117 net/mlx5: Remove unused MAX HCA capabilities
Each device cap has two modes: MAX and CUR. The driver maintains a
cache of both modes of the capabilities. For most device caps, the MAX
cap mode is never used.

Hence, remove all driver queries of the MAX mode of the said caps as
well as their helper MACROs.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Maher Sanalla <msanalla@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-08-14 14:40:22 -07:00
Shay Drory 0b4eb603d6 net/mlx5: Remove unused CAPs
mlx5 driver queries the device for VECTOR_CALC and SHAMPO caps, but
there isn't any user who requires them.
As well as, MLX5_MCAM_REGS_0x9080_0x90FF is queried but not used.

Thus, drop all usages and definitions of the mentioned caps above.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Maher Sanalla <msanalla@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-08-14 14:40:22 -07:00
Moshe Shemesh a9f168e4c6 net/mlx5: Check with FW that sync reset completed successfully
Even if the PF driver had no error on his part of the sync reset flow,
the firmware can see wider picture as it syncs all the PFs in the flow.
So add at end of sync reset flow check with firmware by reading MFRL
register and initialization segment that the flow had no issue from
firmware point of view too.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-08-14 14:40:21 -07:00
Adham Faris 1f507e80c7 net/mlx5: Expose NIC temperature via hardware monitoring kernel API
Expose NIC temperature by implementing hwmon kernel API, which turns
current thermal zone kernel API to redundant.

For each one of the supported and exposed thermal diode sensors, expose
the following attributes:
1) Input temperature.
2) Highest temperature.
3) Temperature label:
   Depends on the firmware capability, if firmware doesn't support
   sensors naming, the fallback naming convention would be: "sensorX",
   where X is the HW spec (MTMP register) sensor index.
4) Temperature critical max value:
   refers to the high threshold of Warning Event. Will be exposed as
   `tempY_crit` hwmon attribute (RO attribute). For example for
   ConnectX5 HCA's this temperature value will be 105 Celsius, 10
   degrees lower than the HW shutdown temperature).
5) Temperature reset history: resets highest temperature.

For example, for dualport ConnectX5 NIC with a single IC thermal diode
sensor will have 2 hwmon directories (one for each PCI function)
under "/sys/class/hwmon/hwmon[X,Y]".

Listing one of the directories above (hwmonX/Y) generates the
corresponding output below:

$ grep -H -d skip . /sys/class/hwmon/hwmon0/*

Output
=======================================================================
/sys/class/hwmon/hwmon0/name:mlx5
/sys/class/hwmon/hwmon0/temp1_crit:105000
/sys/class/hwmon/hwmon0/temp1_highest:48000
/sys/class/hwmon/hwmon0/temp1_input:46000
/sys/class/hwmon/hwmon0/temp1_label:asic
grep: /sys/class/hwmon/hwmon0/temp1_reset_history: Permission denied

In addition, displaying the sensors data via lm_sensors generates the
corresponding output below:

$ sensors

Output
=======================================================================
mlx5-pci-0800
Adapter: PCI adapter
asic:         +46.0°C  (crit = +105.0°C, highest = +48.0°C)

mlx5-pci-0801
Adapter: PCI adapter
asic:         +46.0°C  (crit = +105.0°C, highest = +48.0°C)

CC: Jean Delvare <jdelvare@suse.com>
Signed-off-by: Adham Faris <afaris@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230807180507.22984-3-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-09 15:52:16 -07:00
Maher Sanalla f14c1a14e6 net/mlx5: Allocate completion EQs dynamically
This commit enables the dynamic allocation of EQs at runtime, allowing
for more flexibility in managing completion EQs and reducing the memory
overhead of driver load. Whenever a CQ is created for a given vector
index, the driver will lookup to see if there is an already mapped
completion EQ for that vector, if so, utilize it. Otherwise, allocate a
new EQ on demand and then utilize it for the CQ completion events.

Add a protection lock to the EQ table to protect from concurrent EQ
creation attempts.

While at it, replace mlx5_vector2irqn()/mlx5_vector2eqn() with
mlx5_comp_eqn_get() and mlx5_comp_irqn_get() which will allocate an
EQ on demand if no EQ is found for the given vector.

Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-08-07 10:53:52 -07:00
Maher Sanalla 674dd4e2e0 net/mlx5: Rename mlx5_comp_vectors_count() to mlx5_comp_vectors_max()
To accurately represent its purpose, rename the function that retrieves
the value of maximum vectors from mlx5_comp_vectors_count() to
mlx5_comp_vectors_max().

Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-08-07 10:53:51 -07:00
Maher Sanalla f3147015fa net/mlx5: Add IRQ vector to CPU lookup function
Currently, once driver load completes, IRQ requests were performed for all
vectors. However, as we move to support dynamic creation of EQs, this will
not be the case as some IRQs will not exist at this stage. Thus, in such
case, use the default CPU to IRQ mapping which is the serial mapping based
on IRQ vector index. Meaning, the n'th vector gets mapped to the n'th CPU.

Introduce an API function mlx5_comp_vector_cpu() that takes an IRQ index and
provides the corresponding CPU mapping. It utilizes the existing IRQ
affinity if defined, or resorts to the default serialized CPU mapping
otherwise.

Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-08-07 10:53:51 -07:00
Jianbo Liu c8e350e62f net/mlx5e: Make TC and IPsec offloads mutually exclusive on a netdev
For IPsec packet offload mode, the order of TC offload and IPsec
offload on the same netdevice is not aligned with the order in the
non-offload software. For example, for RX, the software performs TC
first and then IPsec transformation, but the implementation for
offload does that in the opposite way.

To resolve the difference for now, either IPsec offload or TC offload,
not both, is allowed for a specific interface.

Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/8e2e5e3b0984d785066e8663aaf97b3ba1bb873f.1690802064.git.leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-02 18:37:30 -07:00
Jianbo Liu c6c2bf5db4 net/mlx5e: Support IPsec packet offload for TX in switchdev mode
The IPsec encryption is done at the last, so add new prio for IPsec
offload in FDB, and put it just lower than the slow path prio and
higher than the per-vport prio.
Three levels are added for TX. The first one is for ip xfrm policy.
The sa table is created in the second level for ip xfrm state. The
status table is created at the last to count the number of packets
encrypted.
The rules, which forward packets to uplink, are changed to forward
them to IPsec TX tables first. These rules are restored after those
tables are destroyed, which is done immediately when there is no
reference to them, just as what does in legacy mode. The support for
slow path is added here, by refreshing uplink's channels. But, the
handling for TC fast path, which is more complicated, will be added
later. Besides, reg c4 is used instead to match reqid.

Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/cfd0e6ffaf0b8c55ebaa9fb0649b7c504b6b8ec6.1690802064.git.leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-02 18:37:29 -07:00
Jianbo Liu 91bafc638e net/mlx5e: Handle IPsec offload for RX datapath in switchdev mode
Reuse tun opts bits in reg c1, to pass IPsec obj id to datapath.
As this is only for RX SA and there are only 11 bits, xarray is used
to map IPsec obj id to an index, which is between 1 and 0x7ff, and
replace obj id to write to reg c1.

Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/43d60fbcc9cd672a97d7e2a2f7fe6a3d9e9a776d.1690802064.git.leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-02 18:37:29 -07:00
Jianbo Liu 1762f132d5 net/mlx5e: Support IPsec packet offload for RX in switchdev mode
As decryption must be done first, add new prio for IPsec offload in
FDB, and put it just lower than BYPASS prio and higher than TC prio.
Three levels are added for RX. The first one is for ip xfrm policy. SA
table is created in the second level for ip xfrm state. The status
table is created in the last to check the decryption result. If
success, packets continue with the next process, or dropped otherwise.
For now, the set of reg c1 is removed for swtichdev mode, and the
datapath process will be added in the next patch.

Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/c91063554cf643fb50b99cf093e8a9bf11729de5.1690802064.git.leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-02 18:37:29 -07:00
Shay Drory b90ebfc018 net/mlx5: Allocate command stats with xarray
Command stats is an array with more than 2K entries, which amounts to
~180KB. This is way more than actually needed, as only ~190 entries
are being used.

Therefore, replace the array with xarray.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-07-27 11:37:29 -07:00
Shay Drory 58db72869a net/mlx5: Re-organize mlx5_cmd struct
Downstream patch will split mlx5_cmd_init() to probe and reload
routines. As a preparation, organize mlx5_cmd struct so that any
field that will be used in the reload routine are grouped at new
nested struct.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-07-27 11:37:29 -07:00
Roi Dayan 88d162b479 net/mlx5: Devcom, Infrastructure changes
Update devcom infrastructure to be more generic, without
depending on max supported ports definition or a device guid,
and also more encapsulated so callers don't need to pass
the register devcom component id per event call.

Signed-off-by: Eli Cohen <elic@nvidia.com>
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-07-27 11:37:28 -07:00
Leon Romanovsky 5726628127 net/mlx5: Add relevant capabilities bits to support NAT-T
Provide an ability to check if flow steering supports UDP
encapsulation and decapsulation of IPsec ESP packets.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-07-25 15:08:57 +02:00
Linus Torvalds 7ede5f78a0 v6.5 merge window RDMA pull request
This cycle saw a focus on rxe and bnxt_re drivers:
 
 - Code cleanups for irdma, rxe, rtrs, hns, vmw_pvrdma
 
 - rxe uses workqueues instead of tasklets
 
 - rxe has better compliance around access checks for MRs and rereg_mr
 
 - mana supportst he 'v2' FW interface for RX coalescing
 
 - hfi1 bug fix for stale cache entries in its MR cache
 
 - mlx5 buf fix to handle FW failures when destroying QPs
 
 - erdma HW has a new doorbell allocation mechanism for uverbs that is
   secure
 
 - Lots of small cleanups and rework in bnxt_re
    * Use the common mmap functions
    * Support disassociation
    * Improve FW command flow
 
 - bnxt_re support for "low latency push", this allows a packet
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQRRRCHOFoQz/8F5bUaFwuHvBreFYQUCZJxq+wAKCRCFwuHvBreF
 YSN+AQDKAmWdKCqmc3boMIq5wt4h7yYzdW47LpzGarOn5Hf+UgEA6mpPJyRqB43C
 CNXYIbASl/LLaWzFvxCq/AYp6tzuog4=
 =I8ju
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "This cycle saw a focus on rxe and bnxt_re drivers:

   - Code cleanups for irdma, rxe, rtrs, hns, vmw_pvrdma

   - rxe uses workqueues instead of tasklets

   - rxe has better compliance around access checks for MRs and rereg_mr

   - mana supportst he 'v2' FW interface for RX coalescing

   - hfi1 bug fix for stale cache entries in its MR cache

   - mlx5 buf fix to handle FW failures when destroying QPs

   - erdma HW has a new doorbell allocation mechanism for uverbs that is
     secure

   - Lots of small cleanups and rework in bnxt_re:
       - Use the common mmap functions
       - Support disassociation
       - Improve FW command flow
       - support for 'low latency push'"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (71 commits)
  RDMA/bnxt_re: Fix an IS_ERR() vs NULL check
  RDMA/bnxt_re: Fix spelling mistake "priviledged" -> "privileged"
  RDMA/bnxt_re: Remove duplicated include in bnxt_re/main.c
  RDMA/bnxt_re: Refactor code around bnxt_qplib_map_rc()
  RDMA/bnxt_re: Remove incorrect return check from slow path
  RDMA/bnxt_re: Enable low latency push
  RDMA/bnxt_re: Reorg the bar mapping
  RDMA/bnxt_re: Move the interface version to chip context structure
  RDMA/bnxt_re: Query function capabilities from firmware
  RDMA/bnxt_re: Optimize the bnxt_re_init_hwrm_hdr usage
  RDMA/bnxt_re: Add disassociate ucontext support
  RDMA/bnxt_re: Use the common mmap helper functions
  RDMA/bnxt_re: Initialize opcode while sending message
  RDMA/cma: Remove NULL check before dev_{put, hold}
  RDMA/rxe: Simplify cq->notify code
  RDMA/rxe: Fixes mr access supported list
  RDMA/bnxt_re: optimize the parameters passed to helper functions
  RDMA/bnxt_re: remove redundant cmdq_bitmap
  RDMA/bnxt_re: use firmware provided max request timeout
  RDMA/bnxt_re: cancel all control path command waiters upon error
  ...
2023-06-29 21:01:17 -07:00
Jason Gunthorpe 5f004bcaee Linux 6.4
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmSYzfYeHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG/ucH/iOM/1Py/fSg0qSs
 7NJ4XXlourT5zrnRMom3cm3d9gYqgTzgvKFL3kjMEexTRVYbhlcO4ZPRsiry8zxF
 ToGX+V8tDMqb8WSdFHzkljRY+zDRyfEUDMlTzROAD9DunLmQtkJKyrggkeGdjkpP
 OyfGqKpwlLXZRAXBil/U8Mx9MHdjJubloZwghLZr33VdUZa68+JJ9l6w163Oe/ET
 K264NM0wxN/kvN57JvePgqMccQwpINylg8IhRI+XelgczjUXeJBsOA8TDv4bDN4Q
 bjCLhkWbIaZtTYqvOXa/kD0T8wd7KETsMBQN8YzyDh6W0GmAlJjTawyAhA6jA5in
 x3uz2W8=
 =L3zp
 -----END PGP SIGNATURE-----

Merge tag 'v6.4' into rdma.git for-next

Linux 6.4

Resolve conflicts between rdma rc and next in rxe_cq matching linux-next:

drivers/infiniband/sw/rxe/rxe_cq.c:
  https://lore.kernel.org/r/20230622115246.365d30ad@canb.auug.org.au

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-06-27 14:06:29 -03:00
Lama Kayal 9ee473c259 net/mlx5: Fix reserved at offset in hca_cap register
A member of struct mlx5_ifc_cmd_hca_cap_bits has been mistakenly
assigned the wrong reserved_at offset value. Correct it to align to the
right value, thus avoid future miscalculation.

Signed-off-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-23 12:27:33 -07:00
Or Har-Toov 0bd2e6fc78 net/mlx5: Expose bits for local loopback counter
Add needed HW bits for querying local loopback counter and the
HCA capability for it.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-16 12:02:08 -07:00
Moshe Shemesh 7a9770f1bf net/mlx5: Handle sync reset unload event
Added a new event handler to firmware sync reset, which is used to
support firmware sync reset flow on smart NIC. Adding this new stage to
the flow enables the firmware to ensure host PFs unload before ECPFs
unload, to avoid race of PFs recovery.

If firmware sends sync_reset_unload event to driver the driver should
unload and close all HW resources of the function. Once the driver
finishes unloading part, it can't get any more events from firmware as
event queues are closed, so it polls the reset state field to know when
to continue to next stage of the sync reset flow.

Added capability bit for supporting sync_reset_unload event.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-16 12:02:07 -07:00
Moshe Shemesh 8bb42ed421 net/mlx5: Expose timeout for sync reset unload stage
Expose new timoueout in Default Timeouts Register to be used on sync
reset flow running on smart NIC. In this flow the driver should know how
much time to wait from getting unload request till firmware will ask the
PF to continue to next stage of the flow.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-16 12:02:06 -07:00
Jakub Kicinski 173780ff18 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

Conflicts:

include/linux/mlx5/driver.h
  617f5db1a6 ("RDMA/mlx5: Fix affinity assignment")
  dc13180824 ("net/mlx5: Enable devlink port for embedded cpu VF vports")
https://lore.kernel.org/all/20230613125939.595e50b8@canb.auug.org.au/

tools/testing/selftests/net/mptcp/mptcp_join.sh
  47867f0a7e ("selftests: mptcp: join: skip check if MIB counter not supported")
  425ba80312 ("selftests: mptcp: join: support RM_ADDR for used endpoints or not")
  45b1a1227a ("mptcp: introduces more address related mibs")
  0639fa230a ("selftests: mptcp: add explicit check for new mibs")
https://lore.kernel.org/netdev/20230609-upstream-net-20230610-mptcp-selftests-support-old-kernels-part-3-v1-0-2896fe2ee8a3@tessares.net/

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-15 22:19:41 -07:00
Linus Torvalds 93fd8eb053 v6.4 second rc RDMA pull request
Many rc bug fixes:
 
 - Two rtrs bug fixes for error unwind bugs
 
 - Several rxe bug fixes:
    * Incorrect Rx packet validation
    * Using memory without a refcount
    * Syzkaller found use before initialization
    * Regression fix for missing locking with the tasklet conversion from
      this merge window
 
 - Have bnxt report the correct link properties to userspace, this was
   a regression in v6.3
 
 - Several mlx5 bug fixes:
    * Kernel crash triggerable by userspace for the RAW ethernet profile
    * Defend against steering refcounting issues created by userspace
    * Incorrect change of QP port affinity parameters in some LAG configurations
 
 - Fix mlx5 Q counters:
    * Do not over allocate Q counters to allow userspace to use the full
      port capacity
    * Kernel crash triggered by eswitch due to mis-use of Q counters
    * Incorrect mlx5_device for Q counters in some LAG configurations
 
 - Properly implement the IBA spec restricting privileged qkeys to root
 
 - Always an error when reading from a disassociated device's event queue
 
 - isert bug fixes:
    * Avoid a deadlock with the CM handler and CM ID destruction
    * Correct list corruption due to incorrect locking
    * Fix a use after free around connection tear down
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQRRRCHOFoQz/8F5bUaFwuHvBreFYQUCZIoZ7gAKCRCFwuHvBreF
 YUSyAPsH+VdqzYd1z/bk0zMds9JR2oqMOR8l02e4gq8K9hjTJAD/ePEuT5PTpFZu
 FrT4SDhOfA30XNz+RofRNisJC92OOAo=
 =KyF7
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "This is an unusually large bunch of bug fixes for the later rc cycle,
  rxe and mlx5 both dumped a lot of things at once. rxe continues to fix
  itself, and mlx5 is fixing a bunch of "queue counters" related bugs.

  There is one highly notable bug fix regarding the qkey. This small
  security check was missed in the original 2005 implementation and it
  allows some significant issues.

  Summary:

   - Two rtrs bug fixes for error unwind bugs

   - Several rxe bug fixes:
      * Incorrect Rx packet validation
      * Using memory without a refcount
      * Syzkaller found use before initialization
      * Regression fix for missing locking with the tasklet conversion
        from this merge window

   - Have bnxt report the correct link properties to userspace, this was
     a regression in v6.3

   - Several mlx5 bug fixes:
      * Kernel crash triggerable by userspace for the RAW ethernet
        profile
      * Defend against steering refcounting issues created by userspace
      * Incorrect change of QP port affinity parameters in some LAG
        configurations

   - Fix mlx5 Q counters:
      * Do not over allocate Q counters to allow userspace to use the
        full port capacity
      * Kernel crash triggered by eswitch due to mis-use of Q counters
      * Incorrect mlx5_device for Q counters in some LAG configurations

   - Properly implement the IBA spec restricting privileged qkeys to
     root

   - Always an error when reading from a disassociated device's event
     queue

   - isert bug fixes:
      * Avoid a deadlock with the CM handler and CM ID destruction
      * Correct list corruption due to incorrect locking
      * Fix a use after free around connection tear down"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/rxe: Fix rxe_cq_post
  IB/isert: Fix incorrect release of isert connection
  IB/isert: Fix possible list corruption in CMA handler
  IB/isert: Fix dead lock in ib_isert
  RDMA/mlx5: Fix affinity assignment
  IB/uverbs: Fix to consider event queue closing also upon non-blocking mode
  RDMA/uverbs: Restrict usage of privileged QKEYs
  RDMA/cma: Always set static rate to 0 for RoCE
  RDMA/mlx5: Fix Q-counters query in LAG mode
  RDMA/mlx5: Remove vport Q-counters dependency on normal Q-counters
  RDMA/mlx5: Fix Q-counters per vport allocation
  RDMA/mlx5: Create an indirect flow table for steering anchor
  RDMA/mlx5: Initiate dropless RQ for RAW Ethernet functions
  RDMA/rxe: Fix the use-before-initialization error of resp_pkts
  RDMA/bnxt_re: Fix reporting active_{speed,width} attributes
  RDMA/rxe: Fix ref count error in check_rkey()
  RDMA/rxe: Fix packet length checks
  RDMA/rtrs: Fix rxe_dealloc_pd warning
  RDMA/rtrs: Fix the last iu->buf leak in err path
2023-06-15 20:13:56 -07:00
Mark Bloch 617f5db1a6 RDMA/mlx5: Fix affinity assignment
The cited commit aimed to ensure that Virtual Functions (VFs) assign a
queue affinity to a Queue Pair (QP) to distribute traffic when
the LAG master creates a hardware LAG. If the affinity was set while
the hardware was not in LAG, the firmware would ignore the affinity value.

However, this commit unintentionally assigned an affinity to QPs on the LAG
master's VPORT even if the RDMA device was not marked as LAG-enabled.
In most cases, this was not an issue because when the hardware entered
hardware LAG configuration, the RDMA device of the LAG master would be
destroyed and a new one would be created, marked as LAG-enabled.

The problem arises when a user configures Equal-Cost Multipath (ECMP).
In ECMP mode, traffic can be directed to different physical ports based on
the queue affinity, which is intended for use by VPORTS other than the
E-Switch manager. ECMP mode is supported only if both E-Switch managers are
in switchdev mode and the appropriate route is configured via IP. In this
configuration, the RDMA device is not destroyed, and we retain the RDMA
device that is not marked as LAG-enabled.

To ensure correct behavior, Send Queues (SQs) opened by the E-Switch
manager through verbs should be assigned strict affinity. This means they
will only be able to communicate through the native physical port
associated with the E-Switch manager. This will prevent the firmware from
assigning affinity and will not allow the SQs to be remapped in case of
failover.

Fixes: 802dcc7fc5 ("RDMA/mlx5: Support TX port affinity for VF drivers in LAG mode")
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://lore.kernel.org/r/425b05f4da840bc684b0f7e8ebf61aeb5cef09b0.1685960567.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-06-11 11:27:17 +03:00
Patrisious Haddad afff248998 RDMA/mlx5: Handle DCT QP logic separately from low level QP interface
Previously when destroying a DCT, if the firmware function for the
destruction failed, the common resource would have been destroyed
either way, since it was destroyed before the firmware object.
Which leads to kernel warning "refcount_t: underflow" which indicates
possible use-after-free.
Which is triggered when we try to destroy the common resource for the
second time and execute refcount_dec_and_test(&common->refcount).

So, let's fix the destruction order by factoring out the DCT QP logic
to be in separate XArray database.

refcount_t: underflow; use-after-free.
WARNING: CPU: 8 PID: 1002 at lib/refcount.c:28 refcount_warn_saturate+0xd8/0xe0
Modules linked in: xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core overlay mlx5_core fuse
CPU: 8 PID: 1002 Comm: python3 Not tainted 5.16.0-rc5+ #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:refcount_warn_saturate+0xd8/0xe0
Code: ff 48 c7 c7 18 f5 23 82 c6 05 60 70 ff 00 01 e8 d0 0a 45 00 0f 0b c3 48 c7 c7 c0 f4 23 82 c6 05 4c 70 ff 00 01 e8 ba 0a 45 00 <0f> 0b c3 0f 1f 44 00 00 8b 07 3d 00 00 00 c0 74 12 83 f8 01 74 13
RSP: 0018:ffff8881221d3aa8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff8881313e8d40 RCX: ffff88852cc1b5c8
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff88852cc1b5c0
RBP: ffff888100f70000 R08: ffff88853ffd1ba8 R09: 0000000000000003
R10: 00000000fffff000 R11: 3fffffffffffffff R12: 0000000000000246
R13: ffff888100f71fa0 R14: ffff8881221d3c68 R15: 0000000000000020
FS:  00007efebbb13740(0000) GS:ffff88852cc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005611aac29f80 CR3: 00000001313de004 CR4: 0000000000370ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 destroy_resource_common+0x6e/0x95 [mlx5_ib]
 mlx5_core_destroy_rq_tracked+0x38/0xbe [mlx5_ib]
 mlx5_ib_destroy_wq+0x22/0x80 [mlx5_ib]
 ib_destroy_wq_user+0x1f/0x40 [ib_core]
 uverbs_free_wq+0x19/0x40 [ib_uverbs]
 destroy_hw_idr_uobject+0x18/0x50 [ib_uverbs]
 uverbs_destroy_uobject+0x2f/0x190 [ib_uverbs]
 uobj_destroy+0x3c/0x80 [ib_uverbs]
 ib_uverbs_cmd_verbs+0x3e4/0xb80 [ib_uverbs]
 ? uverbs_free_wq+0x40/0x40 [ib_uverbs]
 ? ip_list_rcv+0xf7/0x120
 ? netif_receive_skb_list_internal+0x1b6/0x2d0
 ? task_tick_fair+0xbf/0x450
 ? __handle_mm_fault+0x11fc/0x1450
 ib_uverbs_ioctl+0xa4/0x110 [ib_uverbs]
 __x64_sys_ioctl+0x3e4/0x8e0
 ? handle_mm_fault+0xb9/0x210
 do_syscall_64+0x3d/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7efebc0be17b
Code: 0f 1e fa 48 8b 05 1d ad 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ed ac 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe71813e78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffe71813fb8 RCX: 00007efebc0be17b
RDX: 00007ffe71813fa0 RSI: 00000000c0181b01 RDI: 0000000000000005
RBP: 00007ffe71813f80 R08: 00005611aae96020 R09: 000000000000004f
R10: 00007efebbf9ffa0 R11: 0000000000000246 R12: 00007ffe71813f80
R13: 00007ffe71813f4c R14: 00005611aae2eca0 R15: 00007efeae6c89d0
 </TASK>

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/4470888466c8a898edc9833286967529cc5f3c0d.1685953497.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-06-11 11:21:40 +03:00
Leon Romanovsky 2ecfd94616 RDMA/mlx5: Reduce QP table exposure
driver.h is common header to whole mlx5 code base, but struct
mlx5_qp_table is used in mlx5_ib driver only. So move that struct
to be under sole responsibility of mlx5_ib.

Link: https://lore.kernel.org/r/bec0dc1158e795813b135d1143147977f26bf668.1685953497.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2023-06-11 11:21:28 +03:00
Daniel Jurgens 395ccd6eb4 net/mlx5: Add new page type for EC VF pages
When the embedded cpu supports SRIOV it can be enabled and disabled
independently from the host SRIOV. Track the pages separately so we can
properly wait for returned VF pages.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-09 18:40:51 -07:00
Daniel Jurgens 9ac0b12824 net/mlx5: Update vport caps query/set for EC VFs
These functions are for query/set by vport, there was an underlying
assumption that vport was equal to function ID. That's not the case for
EC VF functions. Set the ec_vf_function bit accordingly.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-09 18:40:51 -07:00
Daniel Jurgens dc13180824 net/mlx5: Enable devlink port for embedded cpu VF vports
Enable creation of a devlink port for EC VF vports.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-09 18:40:51 -07:00
Daniel Jurgens 93b36d0f28 net/mlx5: mlx5_ifc updates for embedded CPU SRIOV
Add ec_vf_vport_base to HCA Capabilities 2. This indicates the base vport
of embedded CPU virtual functions that are connected to the eswitch.

Add ec_vf_function to query/set_hca_caps. If set this indicates
accessing a virtual function on the embedded CPU by function ID. This
should only be used with other_function set to 1.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: Bodong Wang <bodong@nvidia.com>
Reviewed-by: William Tu <witu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-09 18:40:50 -07:00
Lama Kayal a33682e4e7 net/mlx5e: Expose catastrophic steering error counters
Add generated_pkt_steering_fail and handled_pkt_steering_fail to devlink
heatlth reporter.
generated_pkt_steering_fail indicates the number of packets dropped due to
illegal steering operation within the vport steering domain.
handled_pkt_steering_fail indicates the number of packets dropped due to
illegal steering operation, originated by the vport.

Also, update devlink reporter functionality documentation with the newly
exposed counters.

Signed-off-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-07 14:00:43 -07:00
Shay Drory 222dd18583 {net/RDMA}/mlx5: introduce lag_for_each_peer
Introduce a generic APIs to iterate over all the devices which are part
of the LAG. This API replace mlx5_lag_get_peer_mdev() which retrieve
only a single peer device from the lag.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2023-06-07 14:00:42 -07:00