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Message-Id: <20190708192532.27420-4-snelson@pensando.io>
Date: Mon, 8 Jul 2019 12:25:16 -0700
From: Shannon Nelson <snelson@...sando.io>
To: snelson@...sando.io, netdev@...r.kernel.org
Subject: [PATCH v3 net-next 03/19] ionic: Add port management commands
The port management commands apply to the physical port
associated with the PCI device, which might be shared among
several logical interfaces.
Signed-off-by: Shannon Nelson <snelson@...sando.io>
---
drivers/net/ethernet/pensando/ionic/ionic.h | 4 +
.../ethernet/pensando/ionic/ionic_bus_pci.c | 16 +++
.../net/ethernet/pensando/ionic/ionic_dev.c | 116 ++++++++++++++++++
.../net/ethernet/pensando/ionic/ionic_dev.h | 15 +++
.../net/ethernet/pensando/ionic/ionic_main.c | 95 ++++++++++++++
5 files changed, 246 insertions(+)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic.h b/drivers/net/ethernet/pensando/ionic/ionic.h
index 4fd0ae86556a..f77712feef5c 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic.h
@@ -42,4 +42,8 @@ int ionic_identify(struct ionic *ionic);
int ionic_init(struct ionic *ionic);
int ionic_reset(struct ionic *ionic);
+int ionic_port_identify(struct ionic *ionic);
+int ionic_port_init(struct ionic *ionic);
+int ionic_port_reset(struct ionic *ionic);
+
#endif /* _IONIC_H_ */
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
index 7eb23f0e87ac..7a41f8995c35 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
@@ -137,8 +137,23 @@ static int ionic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out_teardown;
}
+ /* Configure the ports */
+ err = ionic_port_identify(ionic);
+ if (err) {
+ dev_err(dev, "Cannot identify port: %d, aborting\n", err);
+ goto err_out_reset;
+ }
+
+ err = ionic_port_init(ionic);
+ if (err) {
+ dev_err(dev, "Cannot init port: %d, aborting\n", err);
+ goto err_out_reset;
+ }
+
return 0;
+err_out_reset:
+ ionic_reset(ionic);
err_out_teardown:
ionic_dev_teardown(ionic);
err_out_unmap_bars:
@@ -162,6 +177,7 @@ static void ionic_remove(struct pci_dev *pdev)
struct ionic *ionic = pci_get_drvdata(pdev);
if (ionic) {
+ ionic_port_reset(ionic);
ionic_reset(ionic);
ionic_dev_teardown(ionic);
ionic_unmap_bars(ionic);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.c b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
index ca2ef0a1f620..e2eda2bedac6 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
@@ -130,3 +130,119 @@ void ionic_dev_cmd_reset(struct ionic_dev *idev)
ionic_dev_cmd_go(idev, &cmd);
}
+
+/* Port commands */
+void ionic_dev_cmd_port_identify(struct ionic_dev *idev)
+{
+ union dev_cmd cmd = {
+ .port_init.opcode = CMD_OPCODE_PORT_IDENTIFY,
+ .port_init.index = 0,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_init(struct ionic_dev *idev)
+{
+ union dev_cmd cmd = {
+ .port_init.opcode = CMD_OPCODE_PORT_INIT,
+ .port_init.index = 0,
+ .port_init.info_pa = cpu_to_le64(idev->port_info_pa),
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_reset(struct ionic_dev *idev)
+{
+ union dev_cmd cmd = {
+ .port_reset.opcode = CMD_OPCODE_PORT_RESET,
+ .port_reset.index = 0,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_state(struct ionic_dev *idev, u8 state)
+{
+ union dev_cmd cmd = {
+ .port_setattr.opcode = CMD_OPCODE_PORT_SETATTR,
+ .port_setattr.index = 0,
+ .port_setattr.attr = IONIC_PORT_ATTR_STATE,
+ .port_setattr.state = state,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_speed(struct ionic_dev *idev, u32 speed)
+{
+ union dev_cmd cmd = {
+ .port_setattr.opcode = CMD_OPCODE_PORT_SETATTR,
+ .port_setattr.index = 0,
+ .port_setattr.attr = IONIC_PORT_ATTR_SPEED,
+ .port_setattr.speed = cpu_to_le32(speed),
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_mtu(struct ionic_dev *idev, u32 mtu)
+{
+ union dev_cmd cmd = {
+ .port_setattr.opcode = CMD_OPCODE_PORT_SETATTR,
+ .port_setattr.index = 0,
+ .port_setattr.attr = IONIC_PORT_ATTR_MTU,
+ .port_setattr.mtu = cpu_to_le32(mtu),
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_autoneg(struct ionic_dev *idev, u8 an_enable)
+{
+ union dev_cmd cmd = {
+ .port_setattr.opcode = CMD_OPCODE_PORT_SETATTR,
+ .port_setattr.index = 0,
+ .port_setattr.attr = IONIC_PORT_ATTR_AUTONEG,
+ .port_setattr.an_enable = an_enable,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_fec(struct ionic_dev *idev, u8 fec_type)
+{
+ union dev_cmd cmd = {
+ .port_setattr.opcode = CMD_OPCODE_PORT_SETATTR,
+ .port_setattr.index = 0,
+ .port_setattr.attr = IONIC_PORT_ATTR_FEC,
+ .port_setattr.fec_type = fec_type,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_pause(struct ionic_dev *idev, u8 pause_type)
+{
+ union dev_cmd cmd = {
+ .port_setattr.opcode = CMD_OPCODE_PORT_SETATTR,
+ .port_setattr.index = 0,
+ .port_setattr.attr = IONIC_PORT_ATTR_PAUSE,
+ .port_setattr.pause_type = pause_type,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_loopback(struct ionic_dev *idev, u8 loopback_mode)
+{
+ union dev_cmd cmd = {
+ .port_setattr.opcode = CMD_OPCODE_PORT_SETATTR,
+ .port_setattr.index = 0,
+ .port_setattr.attr = IONIC_PORT_ATTR_LOOPBACK,
+ .port_setattr.loopback_mode = loopback_mode,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.h b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
index 66afab3ee396..fe5e1b0e8d55 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
@@ -123,6 +123,10 @@ struct ionic_dev {
struct ionic_intr __iomem *intr_ctrl;
u64 __iomem *intr_status;
+ struct port_info *port_info;
+ dma_addr_t port_info_pa;
+ u32 port_info_sz;
+
struct ionic_devinfo dev_info;
};
@@ -141,4 +145,15 @@ void ionic_dev_cmd_identify(struct ionic_dev *idev, u8 ver);
void ionic_dev_cmd_init(struct ionic_dev *idev);
void ionic_dev_cmd_reset(struct ionic_dev *idev);
+void ionic_dev_cmd_port_identify(struct ionic_dev *idev);
+void ionic_dev_cmd_port_init(struct ionic_dev *idev);
+void ionic_dev_cmd_port_reset(struct ionic_dev *idev);
+void ionic_dev_cmd_port_state(struct ionic_dev *idev, u8 state);
+void ionic_dev_cmd_port_speed(struct ionic_dev *idev, u32 speed);
+void ionic_dev_cmd_port_mtu(struct ionic_dev *idev, u32 mtu);
+void ionic_dev_cmd_port_autoneg(struct ionic_dev *idev, u8 an_enable);
+void ionic_dev_cmd_port_fec(struct ionic_dev *idev, u8 fec_type);
+void ionic_dev_cmd_port_pause(struct ionic_dev *idev, u8 pause_type);
+void ionic_dev_cmd_port_loopback(struct ionic_dev *idev, u8 loopback_mode);
+
#endif /* _IONIC_DEV_H_ */
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c
index 567ed259b398..78eab326b067 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c
@@ -307,6 +307,101 @@ int ionic_reset(struct ionic *ionic)
return err;
}
+int ionic_port_identify(struct ionic *ionic)
+{
+ struct identity *ident = &ionic->ident;
+ struct ionic_dev *idev = &ionic->idev;
+ struct device *dev = ionic->dev;
+ size_t sz;
+ int err;
+
+ mutex_lock(&ionic->dev_cmd_lock);
+
+ ionic_dev_cmd_port_identify(idev);
+ err = ionic_dev_cmd_wait(ionic, devcmd_timeout);
+ if (!err) {
+ sz = min(sizeof(ident->port), sizeof(idev->dev_cmd_regs->data));
+ memcpy_fromio(&ident->port, &idev->dev_cmd_regs->data, sz);
+ }
+
+ mutex_unlock(&ionic->dev_cmd_lock);
+
+ dev_dbg(dev, "speed %d\n", ident->port.config.speed);
+ dev_dbg(dev, "mtu %d\n", ident->port.config.mtu);
+ dev_dbg(dev, "state %d\n", ident->port.config.state);
+ dev_dbg(dev, "an_enable %d\n", ident->port.config.an_enable);
+ dev_dbg(dev, "fec_type %d\n", ident->port.config.fec_type);
+ dev_dbg(dev, "pause_type %d\n", ident->port.config.pause_type);
+ dev_dbg(dev, "loopback_mode %d\n", ident->port.config.loopback_mode);
+
+ return err;
+}
+
+int ionic_port_init(struct ionic *ionic)
+{
+ struct identity *ident = &ionic->ident;
+ struct ionic_dev *idev = &ionic->idev;
+ size_t sz;
+ int err;
+
+ if (idev->port_info)
+ return 0;
+
+ idev->port_info_sz = ALIGN(sizeof(*idev->port_info), PAGE_SIZE);
+ idev->port_info = dma_alloc_coherent(ionic->dev, idev->port_info_sz,
+ &idev->port_info_pa,
+ GFP_KERNEL);
+ if (!idev->port_info) {
+ dev_err(ionic->dev, "Failed to allocate port info, aborting\n");
+ return -ENOMEM;
+ }
+
+ sz = min(sizeof(ident->port.config), sizeof(idev->dev_cmd_regs->data));
+
+ mutex_lock(&ionic->dev_cmd_lock);
+
+ memcpy_toio(&idev->dev_cmd_regs->data, &ident->port.config, sz);
+ ionic_dev_cmd_port_init(idev);
+ err = ionic_dev_cmd_wait(ionic, devcmd_timeout);
+
+ ionic_dev_cmd_port_state(&ionic->idev, PORT_ADMIN_STATE_UP);
+ (void)ionic_dev_cmd_wait(ionic, devcmd_timeout);
+
+ mutex_unlock(&ionic->dev_cmd_lock);
+ if (err) {
+ dev_err(ionic->dev, "Failed to init port\n");
+ return err;
+ }
+
+ return 0;
+}
+
+int ionic_port_reset(struct ionic *ionic)
+{
+ struct ionic_dev *idev = &ionic->idev;
+ int err;
+
+ if (!idev->port_info)
+ return 0;
+
+ mutex_lock(&ionic->dev_cmd_lock);
+ ionic_dev_cmd_port_reset(idev);
+ err = ionic_dev_cmd_wait(ionic, devcmd_timeout);
+ mutex_unlock(&ionic->dev_cmd_lock);
+ if (err) {
+ dev_err(ionic->dev, "Failed to reset port\n");
+ return err;
+ }
+
+ dma_free_coherent(ionic->dev, idev->port_info_sz,
+ idev->port_info, idev->port_info_pa);
+
+ idev->port_info = NULL;
+ idev->port_info_pa = 0;
+
+ return err;
+}
+
static int __init ionic_init_module(void)
{
ionic_struct_size_checks();
--
2.17.1
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