On Mon, Oct 22, 2018 at 3:04 AM Mika Westerberg
wrote:
>
> Hi,
>
> On Sat, Oct 20, 2018 at 12:55:51PM -0500, Wenwen Wang wrote:
> > In tb_ctl_rx_callback(), the checksum of the received control packet is
> > calculated on 'pkg->buffer' through tb_crc() and saved to 'crc32', Then,
> > 'crc32' is
On Mon, Oct 22, 2018 at 3:04 AM Mika Westerberg
wrote:
>
> Hi,
>
> On Sat, Oct 20, 2018 at 12:55:51PM -0500, Wenwen Wang wrote:
> > In tb_ctl_rx_callback(), the checksum of the received control packet is
> > calculated on 'pkg->buffer' through tb_crc() and saved to 'crc32', Then,
> > 'crc32' is
On Sat, Oct 20, 2018 at 03:15:56PM -0500, Wenwen Wang wrote:
> In tb_ring_poll(), the flag of the frame, i.e.,
> 'ring->descriptors[ring->tail].flags', is checked to see whether the frame
> is completed. If yes, the frame including the flag will be read from the
> ring and returned to the caller.
On Sat, Oct 20, 2018 at 03:15:56PM -0500, Wenwen Wang wrote:
> In tb_ring_poll(), the flag of the frame, i.e.,
> 'ring->descriptors[ring->tail].flags', is checked to see whether the frame
> is completed. If yes, the frame including the flag will be read from the
> ring and returned to the caller.
On Sat, Oct 20, 2018 at 02:47:49PM -0500, Wenwen Wang wrote:
> In ring_work(), the first while loop is used to collect all completed
> frames from the ring buffer. In each iteration of this loop, the flag of
> the frame, i.e., 'ring->descriptors[ring->tail].flags' is firstly check to
> see whether
On Sat, Oct 20, 2018 at 02:47:49PM -0500, Wenwen Wang wrote:
> In ring_work(), the first while loop is used to collect all completed
> frames from the ring buffer. In each iteration of this loop, the flag of
> the frame, i.e., 'ring->descriptors[ring->tail].flags' is firstly check to
> see whether
Hi,
On Sat, Oct 20, 2018 at 01:38:18PM -0500, Wenwen Wang wrote:
> In icm_copy(), the packet id 'hdr->packet_id' is firstly compared against
> 'req->npackets'. If it is less than 'req->npackets', the received packet.
> i.e., 'pkg->buffer', is then copied to 'req->response + offset' through
>
Hi,
On Sat, Oct 20, 2018 at 01:38:18PM -0500, Wenwen Wang wrote:
> In icm_copy(), the packet id 'hdr->packet_id' is firstly compared against
> 'req->npackets'. If it is less than 'req->npackets', the received packet.
> i.e., 'pkg->buffer', is then copied to 'req->response + offset' through
>
Hi,
On Sat, Oct 20, 2018 at 12:55:51PM -0500, Wenwen Wang wrote:
> In tb_ctl_rx_callback(), the checksum of the received control packet is
> calculated on 'pkg->buffer' through tb_crc() and saved to 'crc32', Then,
> 'crc32' is compared with the received checksum to confirm the integrity of
> the
Hi,
On Sat, Oct 20, 2018 at 12:55:51PM -0500, Wenwen Wang wrote:
> In tb_ctl_rx_callback(), the checksum of the received control packet is
> calculated on 'pkg->buffer' through tb_crc() and saved to 'crc32', Then,
> 'crc32' is compared with the received checksum to confirm the integrity of
> the
On Fri, Oct 19, 2018 at 04:25:01PM -0500, Wenwen Wang wrote:
> Hi Mika,
Hi,
> Thanks for your response. The current version of the code assumes that
> the Thunderbolt controller behaves as expected, e.g., the host
> controller should not touch the data after it is marked ready.
> However, it is
On Fri, Oct 19, 2018 at 04:25:01PM -0500, Wenwen Wang wrote:
> Hi Mika,
Hi,
> Thanks for your response. The current version of the code assumes that
> the Thunderbolt controller behaves as expected, e.g., the host
> controller should not touch the data after it is marked ready.
> However, it is
In tb_ring_poll(), the flag of the frame, i.e.,
'ring->descriptors[ring->tail].flags', is checked to see whether the frame
is completed. If yes, the frame including the flag will be read from the
ring and returned to the caller. The problem here is that the flag is
actually in a DMA region, which
In tb_ring_poll(), the flag of the frame, i.e.,
'ring->descriptors[ring->tail].flags', is checked to see whether the frame
is completed. If yes, the frame including the flag will be read from the
ring and returned to the caller. The problem here is that the flag is
actually in a DMA region, which
In ring_work(), the first while loop is used to collect all completed
frames from the ring buffer. In each iteration of this loop, the flag of
the frame, i.e., 'ring->descriptors[ring->tail].flags' is firstly check to
see whether the frame is completed. If yes, the descriptor of the frame,
In ring_work(), the first while loop is used to collect all completed
frames from the ring buffer. In each iteration of this loop, the flag of
the frame, i.e., 'ring->descriptors[ring->tail].flags' is firstly check to
see whether the frame is completed. If yes, the descriptor of the frame,
On Sat, Oct 20, 2018 at 12:25 AM Wenwen Wang wrote:
>
> On Thu, Oct 18, 2018 at 4:13 AM Mika Westerberg
> wrote:
> >
> > Hi Wenwen,
> >
> > On Wed, Oct 17, 2018 at 09:00:29AM -0500, Wenwen Wang wrote:
> > > In tb_cfg_copy(), the header of the received control package, which is in
> > > the
On Sat, Oct 20, 2018 at 12:25 AM Wenwen Wang wrote:
>
> On Thu, Oct 18, 2018 at 4:13 AM Mika Westerberg
> wrote:
> >
> > Hi Wenwen,
> >
> > On Wed, Oct 17, 2018 at 09:00:29AM -0500, Wenwen Wang wrote:
> > > In tb_cfg_copy(), the header of the received control package, which is in
> > > the
In icm_copy(), the packet id 'hdr->packet_id' is firstly compared against
'req->npackets'. If it is less than 'req->npackets', the received packet.
i.e., 'pkg->buffer', is then copied to 'req->response + offset' through
memcpy(). It is worth noting that 'offset' is also calculated based on
In icm_copy(), the packet id 'hdr->packet_id' is firstly compared against
'req->npackets'. If it is less than 'req->npackets', the received packet.
i.e., 'pkg->buffer', is then copied to 'req->response + offset' through
memcpy(). It is worth noting that 'offset' is also calculated based on
In tb_ctl_rx_callback(), the checksum of the received control packet is
calculated on 'pkg->buffer' through tb_crc() and saved to 'crc32', Then,
'crc32' is compared with the received checksum to confirm the integrity of
the received packet. If the checksum does not match, the packet will be
In tb_ctl_rx_callback(), the checksum of the received control packet is
calculated on 'pkg->buffer' through tb_crc() and saved to 'crc32', Then,
'crc32' is compared with the received checksum to confirm the integrity of
the received packet. If the checksum does not match, the packet will be
On Thu, Oct 18, 2018 at 4:13 AM Mika Westerberg
wrote:
>
> Hi Wenwen,
>
> On Wed, Oct 17, 2018 at 09:00:29AM -0500, Wenwen Wang wrote:
> > In tb_cfg_copy(), the header of the received control package, which is in
> > the buffer 'pkg->buffer', is firstly parsed through parse_header() to make
> >
On Thu, Oct 18, 2018 at 4:13 AM Mika Westerberg
wrote:
>
> Hi Wenwen,
>
> On Wed, Oct 17, 2018 at 09:00:29AM -0500, Wenwen Wang wrote:
> > In tb_cfg_copy(), the header of the received control package, which is in
> > the buffer 'pkg->buffer', is firstly parsed through parse_header() to make
> >
Hi Wenwen,
On Wed, Oct 17, 2018 at 09:00:29AM -0500, Wenwen Wang wrote:
> In tb_cfg_copy(), the header of the received control package, which is in
> the buffer 'pkg->buffer', is firstly parsed through parse_header() to make
> sure the header is in the expected format. In parse_header(), the
Hi Wenwen,
On Wed, Oct 17, 2018 at 09:00:29AM -0500, Wenwen Wang wrote:
> In tb_cfg_copy(), the header of the received control package, which is in
> the buffer 'pkg->buffer', is firstly parsed through parse_header() to make
> sure the header is in the expected format. In parse_header(), the
In tb_cfg_copy(), the header of the received control package, which is in
the buffer 'pkg->buffer', is firstly parsed through parse_header() to make
sure the header is in the expected format. In parse_header(), the header is
actually checked by invoking check_header(), which checks the 'unknown'
In tb_cfg_copy(), the header of the received control package, which is in
the buffer 'pkg->buffer', is firstly parsed through parse_header() to make
sure the header is in the expected format. In parse_header(), the header is
actually checked by invoking check_header(), which checks the 'unknown'
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