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Date: Mon, 26 Aug 2019 14:33:24 -0700
From: Shannon Nelson <snelson@...sando.io>
To: snelson@...sando.io, netdev@...r.kernel.org, davem@...emloft.net
Subject: [PATCH v5 net-next 03/18] 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 | 86 +++++++++++++
5 files changed, 237 insertions(+)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic.h b/drivers/net/ethernet/pensando/ionic/ionic.h
index 1f3c4a916849..db2ad14899d3 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic.h
@@ -44,4 +44,8 @@ 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 286b4b450a73..804dd43e92a6 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c
@@ -138,12 +138,27 @@ 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;
+ }
+
err = ionic_devlink_register(ionic);
if (err)
dev_err(dev, "Cannot register devlink: %d\n", err);
return 0;
+err_out_reset:
+ ionic_reset(ionic);
err_out_teardown:
ionic_dev_teardown(ionic);
err_out_unmap_bars:
@@ -170,6 +185,7 @@ static void ionic_remove(struct pci_dev *pdev)
return;
ionic_devlink_unregister(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 0bf1bd6bd7b1..cddd41a43550 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
@@ -134,3 +134,119 @@ 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 ionic_dev_cmd cmd = {
+ .port_init.opcode = IONIC_CMD_PORT_IDENTIFY,
+ .port_init.index = 0,
+ };
+
+ ionic_dev_cmd_go(idev, &cmd);
+}
+
+void ionic_dev_cmd_port_init(struct ionic_dev *idev)
+{
+ union ionic_dev_cmd cmd = {
+ .port_init.opcode = IONIC_CMD_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 ionic_dev_cmd cmd = {
+ .port_reset.opcode = IONIC_CMD_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 ionic_dev_cmd cmd = {
+ .port_setattr.opcode = IONIC_CMD_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 ionic_dev_cmd cmd = {
+ .port_setattr.opcode = IONIC_CMD_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 ionic_dev_cmd cmd = {
+ .port_setattr.opcode = IONIC_CMD_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 ionic_dev_cmd cmd = {
+ .port_setattr.opcode = IONIC_CMD_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 ionic_dev_cmd cmd = {
+ .port_setattr.opcode = IONIC_CMD_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 ionic_dev_cmd cmd = {
+ .port_setattr.opcode = IONIC_CMD_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 ionic_dev_cmd cmd = {
+ .port_setattr.opcode = IONIC_CMD_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 30a5206bba4e..5b83f21af18a 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
@@ -122,6 +122,10 @@ struct ionic_dev {
struct ionic_intr __iomem *intr_ctrl;
u64 __iomem *intr_status;
+ u32 port_info_sz;
+ struct ionic_port_info *port_info;
+ dma_addr_t port_info_pa;
+
struct ionic_devinfo dev_info;
};
@@ -140,4 +144,15 @@ 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 f52eb6c50358..47928f184230 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c
@@ -309,6 +309,92 @@ int ionic_reset(struct ionic *ionic)
return err;
}
+int ionic_port_identify(struct ionic *ionic)
+{
+ struct ionic_identity *ident = &ionic->ident;
+ struct ionic_dev *idev = &ionic->idev;
+ 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);
+
+ return err;
+}
+
+int ionic_port_init(struct ionic *ionic)
+{
+ struct ionic_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, IONIC_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)
{
pr_info("%s %s, ver %s\n",
--
2.17.1
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