diff mbox series

[v2,15/28] soc: fsl: cpm1: qmc: Introduce is_tsa_64rxtx flag

Message ID 20230726150225.483464-16-herve.codina@bootlin.com
State New
Headers
Series Add support for QMC HDLC, framer infrastruture and PEF2256 framer |

Commit Message

Herve Codina July 26, 2023, 3:02 p.m. UTC 
  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.codina@bootlin.com>
---
 drivers/soc/fsl/qe/qmc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Comments

Christophe Leroy Aug. 8, 2023, 8:09 a.m. UTC | #1 
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.codina@bootlin.com>

Reviewed-by: Christophe Leroy <christophe.leroy@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++) {
diff mbox series

Patch

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++) {