Le 26/07/2023 à 17:02, Herve Codina a écrit :
> In order to support runtime timeslot route changes, some operations will
> be different according the routing table used (common Rx and Tx table or
> one table for Rx and one for Tx).
>
> The is_tsa_64rxtx flag is introduced to avoid extra computation to
> determine the table format each time we need it.
> It is set once at initialization.
>
> Signed-off-by: Herve Codina <herve.cod...@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.le...@csgroup.eu>
> ---
> drivers/soc/fsl/qe/qmc.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
> index c8ddd2a54bee..dc113463fbc7 100644
> --- a/drivers/soc/fsl/qe/qmc.c
> +++ b/drivers/soc/fsl/qe/qmc.c
> @@ -216,6 +216,7 @@ struct qmc {
> u16 __iomem *int_curr;
> dma_addr_t int_dma_addr;
> size_t int_size;
> + bool is_tsa_64rxtx;
> struct list_head chan_head;
> struct qmc_chan *chans[64];
> };
> @@ -696,7 +697,7 @@ static int qmc_chan_setup_tsa(struct qmc_chan *chan, bool
> enable)
> * Setup one common 64 entries table or two 32 entries (one for Tx
> * and one for Tx) according to assigned TS numbers.
> */
> - if (info.nb_tx_ts > 32 || info.nb_rx_ts > 32)
> + if (chan->qmc->is_tsa_64rxtx)
> return qmc_chan_setup_tsa_64rxtx(chan, &info, enable);
>
> ret = qmc_chan_setup_tsa_32rx(chan, &info, enable);
> @@ -1053,6 +1054,7 @@ static int qmc_init_tsa_64rxtx(struct qmc *qmc, const
> struct tsa_serial_info *in
> * Everything was previously checked, Tx and Rx related stuffs are
> * identical -> Used Rx related stuff to build the table
> */
> + qmc->is_tsa_64rxtx = true;
>
> /* Invalidate all entries */
> for (i = 0; i < 64; i++)
> @@ -1081,6 +1083,7 @@ static int qmc_init_tsa_32rx_32tx(struct qmc *qmc,
> const struct tsa_serial_info
> * Use a Tx 32 entries table and a Rx 32 entries table.
> * Everything was previously checked.
> */
> + qmc->is_tsa_64rxtx = false;
>
> /* Invalidate all entries */
> for (i = 0; i < 32; i++) {
