[PATCH 5.13 09/35] net: dsa: sja1105: parameterize the number of ports

From: Greg Kroah-Hartman
Date: Fri Aug 06 2021 - 04:24:59 EST

From: Vladimir Oltean <vladimir.oltean@xxxxxxx>

[ Upstream commit 542043e91df452ed09f382d8c41cdf3788f31b5e ]

The sja1105 driver will gain support for the next-gen SJA1110 switch,
which is very similar except for the fact it has more than 5 ports.

So we need to replace the hardcoded SJA1105_NUM_PORTS in this driver
with ds->num_ports. This patch is as mechanical as possible (save for
the fact that ds->num_ports is not an integer constant expression).

Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/dsa/sja1105/sja1105_clocking.c | 3 +-
drivers/net/dsa/sja1105/sja1105_flower.c | 9 ++--
drivers/net/dsa/sja1105/sja1105_main.c | 61 +++++++++++++---------
drivers/net/dsa/sja1105/sja1105_spi.c | 4 +-
drivers/net/dsa/sja1105/sja1105_tas.c | 14 ++---
5 files changed, 53 insertions(+), 38 deletions(-)

diff --git a/drivers/net/dsa/sja1105/sja1105_clocking.c b/drivers/net/dsa/sja1105/sja1105_clocking.c
index 2a9b8a6a5306..f54b4d03a002 100644
--- a/drivers/net/dsa/sja1105/sja1105_clocking.c
+++ b/drivers/net/dsa/sja1105/sja1105_clocking.c
@@ -721,9 +721,10 @@ int sja1105_clocking_setup_port(struct sja1105_private *priv, int port)

int sja1105_clocking_setup(struct sja1105_private *priv)
{
+ struct dsa_switch *ds = priv->ds;
int port, rc;

- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
rc = sja1105_clocking_setup_port(priv, port);
if (rc < 0)
return rc;
diff --git a/drivers/net/dsa/sja1105/sja1105_flower.c b/drivers/net/dsa/sja1105/sja1105_flower.c
index 973761132fc3..77c54126b3fc 100644
--- a/drivers/net/dsa/sja1105/sja1105_flower.c
+++ b/drivers/net/dsa/sja1105/sja1105_flower.c
@@ -35,6 +35,7 @@ static int sja1105_setup_bcast_policer(struct sja1105_private *priv,
{
struct sja1105_rule *rule = sja1105_rule_find(priv, cookie);
struct sja1105_l2_policing_entry *policing;
+ struct dsa_switch *ds = priv->ds;
bool new_rule = false;
unsigned long p;
int rc;
@@ -59,7 +60,7 @@ static int sja1105_setup_bcast_policer(struct sja1105_private *priv,

policing = priv->static_config.tables[BLK_IDX_L2_POLICING].entries;

- if (policing[(SJA1105_NUM_PORTS * SJA1105_NUM_TC) + port].sharindx != port) {
+ if (policing[(ds->num_ports * SJA1105_NUM_TC) + port].sharindx != port) {
NL_SET_ERR_MSG_MOD(extack,
"Port already has a broadcast policer");
rc = -EEXIST;
@@ -72,7 +73,7 @@ static int sja1105_setup_bcast_policer(struct sja1105_private *priv,
* point to the newly allocated policer
*/
for_each_set_bit(p, &rule->port_mask, SJA1105_NUM_PORTS) {
- int bcast = (SJA1105_NUM_PORTS * SJA1105_NUM_TC) + p;
+ int bcast = (ds->num_ports * SJA1105_NUM_TC) + p;

policing[bcast].sharindx = rule->bcast_pol.sharindx;
}
@@ -435,7 +436,7 @@ int sja1105_cls_flower_del(struct dsa_switch *ds, int port,
policing = priv->static_config.tables[BLK_IDX_L2_POLICING].entries;

if (rule->type == SJA1105_RULE_BCAST_POLICER) {
- int bcast = (SJA1105_NUM_PORTS * SJA1105_NUM_TC) + port;
+ int bcast = (ds->num_ports * SJA1105_NUM_TC) + port;

old_sharindx = policing[bcast].sharindx;
policing[bcast].sharindx = port;
@@ -486,7 +487,7 @@ void sja1105_flower_setup(struct dsa_switch *ds)

INIT_LIST_HEAD(&priv->flow_block.rules);

- for (port = 0; port < SJA1105_NUM_PORTS; port++)
+ for (port = 0; port < ds->num_ports; port++)
priv->flow_block.l2_policer_used[port] = true;
}

diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index 6e5dbe9f3892..ebb6966eba8e 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -107,6 +107,7 @@ static int sja1105_init_mac_settings(struct sja1105_private *priv)
.ingress = false,
};
struct sja1105_mac_config_entry *mac;
+ struct dsa_switch *ds = priv->ds;
struct sja1105_table *table;
int i;

@@ -118,16 +119,16 @@ static int sja1105_init_mac_settings(struct sja1105_private *priv)
table->entry_count = 0;
}

- table->entries = kcalloc(SJA1105_NUM_PORTS,
+ table->entries = kcalloc(ds->num_ports,
table->ops->unpacked_entry_size, GFP_KERNEL);
if (!table->entries)
return -ENOMEM;

- table->entry_count = SJA1105_NUM_PORTS;
+ table->entry_count = ds->num_ports;

mac = table->entries;

- for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ for (i = 0; i < ds->num_ports; i++) {
mac[i] = default_mac;
if (i == dsa_upstream_port(priv->ds, i)) {
/* STP doesn't get called for CPU port, so we need to
@@ -162,6 +163,7 @@ static int sja1105_init_mii_settings(struct sja1105_private *priv,
{
struct device *dev = &priv->spidev->dev;
struct sja1105_xmii_params_entry *mii;
+ struct dsa_switch *ds = priv->ds;
struct sja1105_table *table;
int i;

@@ -183,7 +185,7 @@ static int sja1105_init_mii_settings(struct sja1105_private *priv,

mii = table->entries;

- for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ for (i = 0; i < ds->num_ports; i++) {
if (dsa_is_unused_port(priv->ds, i))
continue;

@@ -267,8 +269,6 @@ static int sja1105_init_static_fdb(struct sja1105_private *priv)

static int sja1105_init_l2_lookup_params(struct sja1105_private *priv)
{
- struct sja1105_table *table;
- u64 max_fdb_entries = SJA1105_MAX_L2_LOOKUP_COUNT / SJA1105_NUM_PORTS;
struct sja1105_l2_lookup_params_entry default_l2_lookup_params = {
/* Learned FDB entries are forgotten after 300 seconds */
.maxage = SJA1105_AGEING_TIME_MS(300000),
@@ -276,8 +276,6 @@ static int sja1105_init_l2_lookup_params(struct sja1105_private *priv)
.dyn_tbsz = SJA1105ET_FDB_BIN_SIZE,
/* And the P/Q/R/S equivalent setting: */
.start_dynspc = 0,
- .maxaddrp = {max_fdb_entries, max_fdb_entries, max_fdb_entries,
- max_fdb_entries, max_fdb_entries, },
/* 2^8 + 2^5 + 2^3 + 2^2 + 2^1 + 1 in Koopman notation */
.poly = 0x97,
/* This selects between Independent VLAN Learning (IVL) and
@@ -301,6 +299,15 @@ static int sja1105_init_l2_lookup_params(struct sja1105_private *priv)
.owr_dyn = true,
.drpnolearn = true,
};
+ struct dsa_switch *ds = priv->ds;
+ struct sja1105_table *table;
+ u64 max_fdb_entries;
+ int port;
+
+ max_fdb_entries = SJA1105_MAX_L2_LOOKUP_COUNT / ds->num_ports;
+
+ for (port = 0; port < ds->num_ports; port++)
+ default_l2_lookup_params.maxaddrp[port] = max_fdb_entries;

table = &priv->static_config.tables[BLK_IDX_L2_LOOKUP_PARAMS];

@@ -393,6 +400,7 @@ static int sja1105_init_static_vlan(struct sja1105_private *priv)
static int sja1105_init_l2_forwarding(struct sja1105_private *priv)
{
struct sja1105_l2_forwarding_entry *l2fwd;
+ struct dsa_switch *ds = priv->ds;
struct sja1105_table *table;
int i, j;

@@ -413,7 +421,7 @@ static int sja1105_init_l2_forwarding(struct sja1105_private *priv)
l2fwd = table->entries;

/* First 5 entries define the forwarding rules */
- for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ for (i = 0; i < ds->num_ports; i++) {
unsigned int upstream = dsa_upstream_port(priv->ds, i);

for (j = 0; j < SJA1105_NUM_TC; j++)
@@ -441,8 +449,8 @@ static int sja1105_init_l2_forwarding(struct sja1105_private *priv)
* Create a one-to-one mapping.
*/
for (i = 0; i < SJA1105_NUM_TC; i++)
- for (j = 0; j < SJA1105_NUM_PORTS; j++)
- l2fwd[SJA1105_NUM_PORTS + i].vlan_pmap[j] = i;
+ for (j = 0; j < ds->num_ports; j++)
+ l2fwd[ds->num_ports + i].vlan_pmap[j] = i;

return 0;
}
@@ -538,7 +546,7 @@ static int sja1105_init_general_params(struct sja1105_private *priv)
*/
.host_port = dsa_upstream_port(priv->ds, 0),
/* Default to an invalid value */
- .mirr_port = SJA1105_NUM_PORTS,
+ .mirr_port = priv->ds->num_ports,
/* Link-local traffic received on casc_port will be forwarded
* to host_port without embedding the source port and device ID
* info in the destination MAC address (presumably because it
@@ -546,7 +554,7 @@ static int sja1105_init_general_params(struct sja1105_private *priv)
* that). Default to an invalid port (to disable the feature)
* and overwrite this if we find any DSA (cascaded) ports.
*/
- .casc_port = SJA1105_NUM_PORTS,
+ .casc_port = priv->ds->num_ports,
/* No TTEthernet */
.vllupformat = SJA1105_VL_FORMAT_PSFP,
.vlmarker = 0,
@@ -667,6 +675,7 @@ static int sja1105_init_avb_params(struct sja1105_private *priv)
static int sja1105_init_l2_policing(struct sja1105_private *priv)
{
struct sja1105_l2_policing_entry *policing;
+ struct dsa_switch *ds = priv->ds;
struct sja1105_table *table;
int port, tc;

@@ -688,8 +697,8 @@ static int sja1105_init_l2_policing(struct sja1105_private *priv)
policing = table->entries;

/* Setup shared indices for the matchall policers */
- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
- int bcast = (SJA1105_NUM_PORTS * SJA1105_NUM_TC) + port;
+ for (port = 0; port < ds->num_ports; port++) {
+ int bcast = (ds->num_ports * SJA1105_NUM_TC) + port;

for (tc = 0; tc < SJA1105_NUM_TC; tc++)
policing[port * SJA1105_NUM_TC + tc].sharindx = port;
@@ -698,7 +707,7 @@ static int sja1105_init_l2_policing(struct sja1105_private *priv)
}

/* Setup the matchall policer parameters */
- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
int mtu = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;

if (dsa_is_cpu_port(priv->ds, port))
@@ -764,9 +773,10 @@ static int sja1105_static_config_load(struct sja1105_private *priv,
static int sja1105_parse_rgmii_delays(struct sja1105_private *priv,
const struct sja1105_dt_port *ports)
{
+ struct dsa_switch *ds = priv->ds;
int i;

- for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ for (i = 0; i < ds->num_ports; i++) {
if (ports[i].role == XMII_MAC)
continue;

@@ -1641,7 +1651,7 @@ static int sja1105_bridge_member(struct dsa_switch *ds, int port,

l2_fwd = priv->static_config.tables[BLK_IDX_L2_FORWARDING].entries;

- for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ for (i = 0; i < ds->num_ports; i++) {
/* Add this port to the forwarding matrix of the
* other ports in the same bridge, and viceversa.
*/
@@ -1863,7 +1873,7 @@ int sja1105_static_config_reload(struct sja1105_private *priv,
* switch wants to see in the static config in order to allow us to
* change it through the dynamic interface later.
*/
- for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ for (i = 0; i < ds->num_ports; i++) {
speed_mbps[i] = sja1105_speed[mac[i].speed];
mac[i].speed = SJA1105_SPEED_AUTO;
}
@@ -1915,7 +1925,7 @@ int sja1105_static_config_reload(struct sja1105_private *priv,
if (rc < 0)
goto out;

- for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ for (i = 0; i < ds->num_ports; i++) {
rc = sja1105_adjust_port_config(priv, i, speed_mbps[i]);
if (rc < 0)
goto out;
@@ -3055,7 +3065,7 @@ static void sja1105_teardown(struct dsa_switch *ds)
struct sja1105_bridge_vlan *v, *n;
int port;

- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
struct sja1105_port *sp = &priv->ports[port];

if (!dsa_is_user_port(ds, port))
@@ -3258,6 +3268,7 @@ static int sja1105_mirror_apply(struct sja1105_private *priv, int from, int to,
{
struct sja1105_general_params_entry *general_params;
struct sja1105_mac_config_entry *mac;
+ struct dsa_switch *ds = priv->ds;
struct sja1105_table *table;
bool already_enabled;
u64 new_mirr_port;
@@ -3268,7 +3279,7 @@ static int sja1105_mirror_apply(struct sja1105_private *priv, int from, int to,

mac = priv->static_config.tables[BLK_IDX_MAC_CONFIG].entries;

- already_enabled = (general_params->mirr_port != SJA1105_NUM_PORTS);
+ already_enabled = (general_params->mirr_port != ds->num_ports);
if (already_enabled && enabled && general_params->mirr_port != to) {
dev_err(priv->ds->dev,
"Delete mirroring rules towards port %llu first\n",
@@ -3282,7 +3293,7 @@ static int sja1105_mirror_apply(struct sja1105_private *priv, int from, int to,
int port;

/* Anybody still referencing mirr_port? */
- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
if (mac[port].ing_mirr || mac[port].egr_mirr) {
keep = true;
break;
@@ -3290,7 +3301,7 @@ static int sja1105_mirror_apply(struct sja1105_private *priv, int from, int to,
}
/* Unset already_enabled for next time */
if (!keep)
- new_mirr_port = SJA1105_NUM_PORTS;
+ new_mirr_port = ds->num_ports;
}
if (new_mirr_port != general_params->mirr_port) {
general_params->mirr_port = new_mirr_port;
@@ -3686,7 +3697,7 @@ static int sja1105_probe(struct spi_device *spi)
}

/* Connections between dsa_port and sja1105_port */
- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
struct sja1105_port *sp = &priv->ports[port];
struct dsa_port *dp = dsa_to_port(ds, port);
struct net_device *slave;
diff --git a/drivers/net/dsa/sja1105/sja1105_spi.c b/drivers/net/dsa/sja1105/sja1105_spi.c
index f7a1514f81e8..923d617cbec6 100644
--- a/drivers/net/dsa/sja1105/sja1105_spi.c
+++ b/drivers/net/dsa/sja1105/sja1105_spi.c
@@ -339,10 +339,10 @@ int static_config_buf_prepare_for_upload(struct sja1105_private *priv,

int sja1105_static_config_upload(struct sja1105_private *priv)
{
- unsigned long port_bitmap = GENMASK_ULL(SJA1105_NUM_PORTS - 1, 0);
struct sja1105_static_config *config = &priv->static_config;
const struct sja1105_regs *regs = priv->info->regs;
struct device *dev = &priv->spidev->dev;
+ struct dsa_switch *ds = priv->ds;
struct sja1105_status status;
int rc, retries = RETRIES;
u8 *config_buf;
@@ -363,7 +363,7 @@ int sja1105_static_config_upload(struct sja1105_private *priv)
* Tx on all ports and waiting for current packet to drain.
* Otherwise, the PHY will see an unterminated Ethernet packet.
*/
- rc = sja1105_inhibit_tx(priv, port_bitmap, true);
+ rc = sja1105_inhibit_tx(priv, GENMASK_ULL(ds->num_ports - 1, 0), true);
if (rc < 0) {
dev_err(dev, "Failed to inhibit Tx on ports\n");
rc = -ENXIO;
diff --git a/drivers/net/dsa/sja1105/sja1105_tas.c b/drivers/net/dsa/sja1105/sja1105_tas.c
index 31d8acff1f01..e6153848a950 100644
--- a/drivers/net/dsa/sja1105/sja1105_tas.c
+++ b/drivers/net/dsa/sja1105/sja1105_tas.c
@@ -27,7 +27,7 @@ static int sja1105_tas_set_runtime_params(struct sja1105_private *priv)

tas_data->enabled = false;

- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
const struct tc_taprio_qopt_offload *offload;

offload = tas_data->offload[port];
@@ -164,6 +164,7 @@ int sja1105_init_scheduling(struct sja1105_private *priv)
struct sja1105_tas_data *tas_data = &priv->tas_data;
struct sja1105_gating_config *gating_cfg = &tas_data->gating_cfg;
struct sja1105_schedule_entry *schedule;
+ struct dsa_switch *ds = priv->ds;
struct sja1105_table *table;
int schedule_start_idx;
s64 entry_point_delta;
@@ -207,7 +208,7 @@ int sja1105_init_scheduling(struct sja1105_private *priv)
}

/* Figure out the dimensioning of the problem */
- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
if (tas_data->offload[port]) {
num_entries += tas_data->offload[port]->num_entries;
num_cycles++;
@@ -269,7 +270,7 @@ int sja1105_init_scheduling(struct sja1105_private *priv)
schedule_entry_points_params->clksrc = SJA1105_TAS_CLKSRC_PTP;
schedule_entry_points_params->actsubsch = num_cycles - 1;

- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
const struct tc_taprio_qopt_offload *offload;
/* Relative base time */
s64 rbt;
@@ -468,6 +469,7 @@ bool sja1105_gating_check_conflicts(struct sja1105_private *priv, int port,
struct sja1105_gating_config *gating_cfg = &priv->tas_data.gating_cfg;
size_t num_entries = gating_cfg->num_entries;
struct tc_taprio_qopt_offload *dummy;
+ struct dsa_switch *ds = priv->ds;
struct sja1105_gate_entry *e;
bool conflict;
int i = 0;
@@ -491,7 +493,7 @@ bool sja1105_gating_check_conflicts(struct sja1105_private *priv, int port,
if (port != -1) {
conflict = sja1105_tas_check_conflicts(priv, port, dummy);
} else {
- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
conflict = sja1105_tas_check_conflicts(priv, port,
dummy);
if (conflict)
@@ -554,7 +556,7 @@ int sja1105_setup_tc_taprio(struct dsa_switch *ds, int port,
}
}

- for (other_port = 0; other_port < SJA1105_NUM_PORTS; other_port++) {
+ for (other_port = 0; other_port < ds->num_ports; other_port++) {
if (other_port == port)
continue;

@@ -885,7 +887,7 @@ void sja1105_tas_teardown(struct dsa_switch *ds)

cancel_work_sync(&priv->tas_data.tas_work);

- for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ for (port = 0; port < ds->num_ports; port++) {
offload = priv->tas_data.offload[port];
if (!offload)
continue;
--
2.30.2