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-rw-r--r--target/linux/generic/backport-4.19/744-v5.5-net-sfp-soft-status-and-control-support.patch225
1 files changed, 0 insertions, 225 deletions
diff --git a/target/linux/generic/backport-4.19/744-v5.5-net-sfp-soft-status-and-control-support.patch b/target/linux/generic/backport-4.19/744-v5.5-net-sfp-soft-status-and-control-support.patch
deleted file mode 100644
index 163d8072e6..0000000000
--- a/target/linux/generic/backport-4.19/744-v5.5-net-sfp-soft-status-and-control-support.patch
+++ /dev/null
@@ -1,225 +0,0 @@
-From 40e0b3b15f7da92e6b065292b14af7b9bfb1c6e0 Mon Sep 17 00:00:00 2001
-From: Russell King <rmk+kernel@armlinux.org.uk>
-Date: Fri, 13 Sep 2019 23:00:35 +0100
-Subject: [PATCH 642/660] net: sfp: soft status and control support
-
-Add support for the soft status and control register, which allows
-TX_FAULT and RX_LOS to be monitored and TX_DISABLE to be set. We
-make use of this when the board does not support GPIOs for these
-signals.
-
-Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
----
- drivers/net/phy/sfp.c | 110 ++++++++++++++++++++++++++++++++++--------
- include/linux/sfp.h | 4 ++
- 2 files changed, 94 insertions(+), 20 deletions(-)
-
---- a/drivers/net/phy/sfp.c
-+++ b/drivers/net/phy/sfp.c
-@@ -199,7 +199,10 @@ struct sfp {
- struct gpio_desc *gpio[GPIO_MAX];
- int gpio_irq[GPIO_MAX];
-
-+ bool need_poll;
-+
- struct mutex st_mutex; /* Protects state */
-+ unsigned int state_soft_mask;
- unsigned int state;
- struct delayed_work poll;
- struct delayed_work timeout;
-@@ -393,24 +396,90 @@ static int sfp_i2c_configure(struct sfp
- }
-
- /* Interface */
--static unsigned int sfp_get_state(struct sfp *sfp)
-+static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
- {
-- return sfp->get_state(sfp);
-+ return sfp->read(sfp, a2, addr, buf, len);
- }
-
--static void sfp_set_state(struct sfp *sfp, unsigned int state)
-+static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
- {
-- sfp->set_state(sfp, state);
-+ return sfp->write(sfp, a2, addr, buf, len);
- }
-
--static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
-+static unsigned int sfp_soft_get_state(struct sfp *sfp)
- {
-- return sfp->read(sfp, a2, addr, buf, len);
-+ unsigned int state = 0;
-+ u8 status;
-+
-+ if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) ==
-+ sizeof(status)) {
-+ if (status & SFP_STATUS_RX_LOS)
-+ state |= SFP_F_LOS;
-+ if (status & SFP_STATUS_TX_FAULT)
-+ state |= SFP_F_TX_FAULT;
-+ }
-+
-+ return state & sfp->state_soft_mask;
- }
-
--static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
-+static void sfp_soft_set_state(struct sfp *sfp, unsigned int state)
- {
-- return sfp->write(sfp, a2, addr, buf, len);
-+ u8 status;
-+
-+ if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) ==
-+ sizeof(status)) {
-+ if (state & SFP_F_TX_DISABLE)
-+ status |= SFP_STATUS_TX_DISABLE_FORCE;
-+ else
-+ status &= ~SFP_STATUS_TX_DISABLE_FORCE;
-+
-+ sfp_write(sfp, true, SFP_STATUS, &status, sizeof(status));
-+ }
-+}
-+
-+static void sfp_soft_start_poll(struct sfp *sfp)
-+{
-+ const struct sfp_eeprom_id *id = &sfp->id;
-+
-+ sfp->state_soft_mask = 0;
-+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_DISABLE &&
-+ !sfp->gpio[GPIO_TX_DISABLE])
-+ sfp->state_soft_mask |= SFP_F_TX_DISABLE;
-+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_FAULT &&
-+ !sfp->gpio[GPIO_TX_FAULT])
-+ sfp->state_soft_mask |= SFP_F_TX_FAULT;
-+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RX_LOS &&
-+ !sfp->gpio[GPIO_LOS])
-+ sfp->state_soft_mask |= SFP_F_LOS;
-+
-+ if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) &&
-+ !sfp->need_poll)
-+ mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
-+}
-+
-+static void sfp_soft_stop_poll(struct sfp *sfp)
-+{
-+ sfp->state_soft_mask = 0;
-+}
-+
-+static unsigned int sfp_get_state(struct sfp *sfp)
-+{
-+ unsigned int state = sfp->get_state(sfp);
-+
-+ if (state & SFP_F_PRESENT &&
-+ sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT))
-+ state |= sfp_soft_get_state(sfp);
-+
-+ return state;
-+}
-+
-+static void sfp_set_state(struct sfp *sfp, unsigned int state)
-+{
-+ sfp->set_state(sfp, state);
-+
-+ if (state & SFP_F_PRESENT &&
-+ sfp->state_soft_mask & SFP_F_TX_DISABLE)
-+ sfp_soft_set_state(sfp, state);
- }
-
- static unsigned int sfp_check(void *buf, size_t len)
-@@ -1342,11 +1411,6 @@ static void sfp_sm_fault(struct sfp *sfp
- }
- }
-
--static void sfp_sm_mod_init(struct sfp *sfp)
--{
-- sfp_module_tx_enable(sfp);
--}
--
- static void sfp_sm_probe_for_phy(struct sfp *sfp)
- {
- /* Setting the serdes link mode is guesswork: there's no
-@@ -1509,7 +1573,7 @@ static int sfp_sm_mod_probe(struct sfp *
- (int)sizeof(id.ext.datecode), id.ext.datecode);
-
- /* Check whether we support this module */
-- if (!sfp->type->module_supported(&sfp->id)) {
-+ if (!sfp->type->module_supported(&id)) {
- dev_err(sfp->dev,
- "module is not supported - phys id 0x%02x 0x%02x\n",
- sfp->id.base.phys_id, sfp->id.base.phys_ext_id);
-@@ -1699,6 +1763,7 @@ static void sfp_sm_main(struct sfp *sfp,
- if (sfp->mod_phy)
- sfp_sm_phy_detach(sfp);
- sfp_module_tx_disable(sfp);
-+ sfp_soft_stop_poll(sfp);
- sfp_sm_next(sfp, SFP_S_DOWN, 0);
- return;
- }
-@@ -1710,7 +1775,10 @@ static void sfp_sm_main(struct sfp *sfp,
- sfp->sm_dev_state != SFP_DEV_UP)
- break;
-
-- sfp_sm_mod_init(sfp);
-+ if (!(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE))
-+ sfp_soft_start_poll(sfp);
-+
-+ sfp_module_tx_enable(sfp);
-
- /* Initialise the fault clearance retries */
- sfp->sm_retries = 5;
-@@ -1966,7 +2034,10 @@ static void sfp_poll(struct work_struct
- struct sfp *sfp = container_of(work, struct sfp, poll.work);
-
- sfp_check_state(sfp);
-- mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
-+
-+ if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) ||
-+ sfp->need_poll)
-+ mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
- }
-
- static struct sfp *sfp_alloc(struct device *dev)
-@@ -2010,7 +2081,6 @@ static int sfp_probe(struct platform_dev
- {
- const struct sff_data *sff;
- struct sfp *sfp;
-- bool poll = false;
- int err, i;
-
- sfp = sfp_alloc(&pdev->dev);
-@@ -2100,7 +2170,7 @@ static int sfp_probe(struct platform_dev
-
- sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]);
- if (!sfp->gpio_irq[i]) {
-- poll = true;
-+ sfp->need_poll = true;
- continue;
- }
-
-@@ -2112,11 +2182,11 @@ static int sfp_probe(struct platform_dev
- dev_name(sfp->dev), sfp);
- if (err) {
- sfp->gpio_irq[i] = 0;
-- poll = true;
-+ sfp->need_poll = true;
- }
- }
-
-- if (poll)
-+ if (sfp->need_poll)
- mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
-
- /* We could have an issue in cases no Tx disable pin is available or
---- a/include/linux/sfp.h
-+++ b/include/linux/sfp.h
-@@ -428,6 +428,10 @@ enum {
- SFP_TEC_CUR = 0x6c,
-
- SFP_STATUS = 0x6e,
-+ SFP_STATUS_TX_DISABLE = BIT(7),
-+ SFP_STATUS_TX_DISABLE_FORCE = BIT(6),
-+ SFP_STATUS_TX_FAULT = BIT(2),
-+ SFP_STATUS_RX_LOS = BIT(1),
- SFP_ALARM0 = 0x70,
- SFP_ALARM0_TEMP_HIGH = BIT(7),
- SFP_ALARM0_TEMP_LOW = BIT(6),
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-27 18:40:16 +0000