1. 31 May, 2022 8 commits
  2. 29 May, 2022 3 commits
    • David S. Miller's avatar
      Merge branch 'sfc-fixes' · 90343f57
      David S. Miller authored
      Íñigo Huguet says:
      
      ====================
      sfc: fix some efx_separate_tx_channels errors
      
      Trying to load sfc driver with modparam efx_separate_tx_channels=1
      resulted in errors during initialization and not being able to use the
      NIC. This patches fix a few bugs and make it work again.
      
      v2:
      * added Martin's patch instead of a previous mine. Mine one solved some
      of the initialization errors, but Martin's solves them also in all
      possible cases.
      * removed whitespaces cleanup, as requested by Jakub
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      90343f57
    • Íñigo Huguet's avatar
      sfc: fix wrong tx channel offset with efx_separate_tx_channels · c308dfd1
      Íñigo Huguet authored
      tx_channel_offset is calculated in efx_allocate_msix_channels, but it is
      also calculated again in efx_set_channels because it was originally done
      there, and when efx_allocate_msix_channels was introduced it was
      forgotten to be removed from efx_set_channels.
      
      Moreover, the old calculation is wrong when using
      efx_separate_tx_channels because now we can have XDP channels after the
      TX channels, so n_channels - n_tx_channels doesn't point to the first TX
      channel.
      
      Remove the old calculation from efx_set_channels, and add the
      initialization of this variable if MSI or legacy interrupts are used,
      next to the initialization of the rest of the related variables, where
      it was missing.
      
      Fixes: 3990a8ff ("sfc: allocate channels for XDP tx queues")
      Reported-by: default avatarTianhao Zhao <tizhao@redhat.com>
      Signed-off-by: default avatarÍñigo Huguet <ihuguet@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c308dfd1
    • Martin Habets's avatar
      sfc: fix considering that all channels have TX queues · 2e102b53
      Martin Habets authored
      Normally, all channels have RX and TX queues, but this is not true if
      modparam efx_separate_tx_channels=1 is used. In that cases, some
      channels only have RX queues and others only TX queues (or more
      preciselly, they have them allocated, but not initialized).
      
      Fix efx_channel_has_tx_queues to return the correct value for this case
      too.
      
      Messages shown at probe time before the fix:
       sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0
       ------------[ cut here ]------------
       netdevice: ens6f0np0: failed to initialise TXQ -1
       WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc]
       [...] stripped
       RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc]
       [...] stripped
       Call Trace:
        efx_init_tx_queue+0xaa/0xf0 [sfc]
        efx_start_channels+0x49/0x120 [sfc]
        efx_start_all+0x1f8/0x430 [sfc]
        efx_net_open+0x5a/0xe0 [sfc]
        __dev_open+0xd0/0x190
        __dev_change_flags+0x1b3/0x220
        dev_change_flags+0x21/0x60
       [...] stripped
      
      Messages shown at remove time before the fix:
       sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues
       sfc 0000:03:00.0 ens6f0np0: failed to flush queues
      
      Fixes: 8700aff0 ("sfc: fix channel allocation with brute force")
      Reported-by: default avatarTianhao Zhao <tizhao@redhat.com>
      Signed-off-by: default avatarMartin Habets <habetsm.xilinx@gmail.com>
      Tested-by: default avatarÍñigo Huguet <ihuguet@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2e102b53
  3. 28 May, 2022 13 commits
  4. 27 May, 2022 15 commits
  5. 26 May, 2022 1 commit