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net: dsa: b53: provide accessors for accessing ARL_SRCH_CTL

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In order to more easily support more formats, move accessing
ARL_SRCH_CTL into helper functions to contain the differences.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20251107080749.26936-5-jonas.gorski@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jonas Gorski
2025-11-07 09:07:45 +01:00
committed by Jakub Kicinski
parent bf6e9d2ae1
commit 1716be6db0
1 changed files with 24 additions and 13 deletions
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drivers/net/dsa/b53/b53_common.c
+24 -13
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@@ -2033,18 +2033,37 @@ int b53_fdb_del(struct dsa_switch *ds, int port,
}
EXPORT_SYMBOL(b53_fdb_del);
static int b53_arl_search_wait(struct b53_device *dev)
static void b53_read_arl_srch_ctl(struct b53_device *dev, u8 *val)
{
unsigned int timeout = 1000;
u8 reg, offset;
u8 offset;
if (is5325(dev) || is5365(dev))
offset = B53_ARL_SRCH_CTL_25;
else
offset = B53_ARL_SRCH_CTL;
b53_read8(dev, B53_ARLIO_PAGE, offset, val);
}
static void b53_write_arl_srch_ctl(struct b53_device *dev, u8 val)
{
u8 offset;
if (is5325(dev) || is5365(dev))
offset = B53_ARL_SRCH_CTL_25;
else
offset = B53_ARL_SRCH_CTL;
b53_write8(dev, B53_ARLIO_PAGE, offset, val);
}
static int b53_arl_search_wait(struct b53_device *dev)
{
unsigned int timeout = 1000;
u8 reg;
do {
b53_read8(dev, B53_ARLIO_PAGE, offset, &reg);
b53_read_arl_srch_ctl(dev, &reg);
if (!(reg & ARL_SRCH_STDN))
return -ENOENT;
@@ -2099,23 +2118,15 @@ int b53_fdb_dump(struct dsa_switch *ds, int port,
unsigned int count = 0, results_per_hit = 1;
struct b53_device *priv = ds->priv;
struct b53_arl_entry results[2];
u8 offset;
int ret;
u8 reg;
if (priv->num_arl_bins > 2)
results_per_hit = 2;
mutex_lock(&priv->arl_mutex);
if (is5325(priv) || is5365(priv))
offset = B53_ARL_SRCH_CTL_25;
else
offset = B53_ARL_SRCH_CTL;
/* Start search operation */
reg = ARL_SRCH_STDN;
b53_write8(priv, B53_ARLIO_PAGE, offset, reg);
b53_write_arl_srch_ctl(priv, ARL_SRCH_STDN);
do {
ret = b53_arl_search_wait(priv);