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[v4,16/28] soc: fsl: cpm1: qmc: Introduce is_tsa_64rxtx flag

Message ID 3cb93d685101e3b762e41afee1562c553ae3b6d4.1692376361.git.christophe.leroy@csgroup.eu (mailing list archive)
State Changes Requested
Headers show
Series Add support for QMC HDLC, framer infrastruture and PEF2256 framer (v4) | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches (and no cover letter)
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 29 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Christophe Leroy Aug. 18, 2023, 4:39 p.m. UTC 
From: Herve Codina <herve.codina@bootlin.com>

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>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
 drivers/soc/fsl/qe/qmc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index 1eff1e138460..610be2b8855c 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++) {