lkml.org 
[lkml]   [2020]   [Apr]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 2/7] tpm: tpm_tis: Add check_data handle to tpm_tis_phy_ops in order to check data integrity
On Tue, Mar 31, 2020 at 02:32:02PM +0300, amirmizi6@gmail.com wrote:
> From: Amir Mizinski <amirmizi6@gmail.com>
>
> In order to compute the crc over the data sent in lower layer
> (I2C for instance), tpm_tis_check_data() calls an operation (if available)
> to check data integrity. If data integrity cannot be verified, a retry
> attempt to save the sent/received data is implemented.
>
> The current steps are done when sending a command:
> 1. Host writes to TPM_STS.commandReady.
> 2. Host writes command.
> 3. Host checks that TPM received data is valid.
> 4. If data is currupted go to step 1.
>
> When receiving data:
> 1. Host checks that TPM_STS.dataAvail is set.
> 2. Host saves received data.
> 3. Host checks that received data is correct.
> 4. If data is currupted Host writes to TPM_STS.responseRetry and go to
> step 1.
>
> Co-developed-by: Christophe Richard <hristophe-h.ricard@st.com>
> Signed-off-by: Christophe Richard <hristophe-h.ricard@st.com>
> Signed-off-by: Amir Mizinski <amirmizi6@gmail.com>

The email is malformed.

So.. How did Christophe participate on writing this patch? I haven't
seen him shouting anything about the subject and still his SOB is
there.

/Jarkko

\
 
 \ /
  Last update: 2020-04-01 10:20    [W:0.111 / U:0.520 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site