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  1. Aug 23, 2021
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  5. Aug 17, 2021
    • Bart Van Assche's avatar
      ANDROID: scsi: ufs: Add more logging · 89249375
      Bart Van Assche authored
      
      The logs attached to bug 196797012 show that the error handler has been
      activated and also that a SECURITY PROTOCOL OUT command is being
      retried but not why. Hence this patch that adds more logging.
      
      Notes:
      - The code that initializes the completion status to
        OCS_INVALID_COMMAND_STATUS was introduced by the initial UFS commit.
        See also 7a3e97b0 ("[SCSI] ufshcd: UFS Host controller driver").
      - The behavior to retry a command if the controller did not overwrite
        the completion status was introduced by commit e8e7f271 ("scsi:
        ufs: Improve UFS fatal error handling") without explaining why. From
        that commit:
      
        +       case OCS_INVALID_COMMAND_STATUS:
        +               result |= DID_REQUEUE << 16;
        +               break;
      
      Bug: 196797012
      Change-Id: I86ce4149babde1daf07af94464b878e9e697b37b
      Signed-off-by: default avatarBart Van Assche <bvanassche@google.com>
      89249375
    • Dongseok Yi's avatar
      soc/google/cpif: Try to refill DIT dst data buffer · b263599a
      Dongseok Yi authored
      
      dit_init would get a skb alloc failure in dit_fill_rx_dst_data_buffer.
      dit_init will check the below condition on the next call and there
      will be no error.
      
      dit_fill_rx_dst_data_buffer:
      [...]
        if (initial && desc_info->dst_skb_buf[ring_num])
          return 0;
      [...]
      
      Some entries of both dst_desc and dst_skb_buf can be empty. Add a flag
      to check if dst_skb_buf is filled.
      
      Bug: 192712042
      Test: Simulate skb alloc failure, then use perftest to send UDP data.
      
      Signed-off-by: default avatarDongseok Yi <dseok.yi@samsung.com>
      Change-Id: I800971926c13fafd6a0c805844a5c443bb69c0d9
      Signed-off-by: default avatarMars Lin <marslin@google.com>
      b263599a
  6. Aug 16, 2021
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