Skip to content

L
linux
Commit b93c3ab6 authored by Tom Lendacky's avatar Tom Lendacky Committed by David S. Miller
Browse files
Options

amd-xgbe: Read and save the port property registers during probe 

Read and save the port property registers once during the device probe
and then use the saved values as they are needed.
Signed-off-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6c2799c1
Hide whitespace changes
Inline Side-by-side
Showing with 62 additions and 47 deletions
drivers/net/ethernet/amd/xgbe/xgbe-pci.c
View file @ b93c3ab6
......@@ -335,12 +335,29 @@ static int xgbe_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
pdata->awcr = XGBE_DMA_PCI_AWCR;
pdata->awarcr = XGBE_DMA_PCI_AWARCR;
/* Read the port property registers */
pdata->pp0 = XP_IOREAD(pdata, XP_PROP_0);
pdata->pp1 = XP_IOREAD(pdata, XP_PROP_1);
pdata->pp2 = XP_IOREAD(pdata, XP_PROP_2);
pdata->pp3 = XP_IOREAD(pdata, XP_PROP_3);
pdata->pp4 = XP_IOREAD(pdata, XP_PROP_4);
if (netif_msg_probe(pdata)) {
dev_dbg(dev, "port property 0 = %#010x\n", pdata->pp0);
dev_dbg(dev, "port property 1 = %#010x\n", pdata->pp1);
dev_dbg(dev, "port property 2 = %#010x\n", pdata->pp2);
dev_dbg(dev, "port property 3 = %#010x\n", pdata->pp3);
dev_dbg(dev, "port property 4 = %#010x\n", pdata->pp4);
}
/* Set the maximum channels and queues */
reg = XP_IOREAD(pdata, XP_PROP_1);
pdata->tx_max_channel_count = XP_GET_BITS(reg, XP_PROP_1, MAX_TX_DMA);
pdata->rx_max_channel_count = XP_GET_BITS(reg, XP_PROP_1, MAX_RX_DMA);
pdata->tx_max_q_count = XP_GET_BITS(reg, XP_PROP_1, MAX_TX_QUEUES);
pdata->rx_max_q_count = XP_GET_BITS(reg, XP_PROP_1, MAX_RX_QUEUES);
pdata->tx_max_channel_count = XP_GET_BITS(pdata->pp1, XP_PROP_1,
MAX_TX_DMA);
pdata->rx_max_channel_count = XP_GET_BITS(pdata->pp1, XP_PROP_1,
MAX_RX_DMA);
pdata->tx_max_q_count = XP_GET_BITS(pdata->pp1, XP_PROP_1,
MAX_TX_QUEUES);
pdata->rx_max_q_count = XP_GET_BITS(pdata->pp1, XP_PROP_1,
MAX_RX_QUEUES);
if (netif_msg_probe(pdata)) {
dev_dbg(dev, "max tx/rx channel count = %u/%u\n",
pdata->tx_max_channel_count,
......@@ -353,12 +370,13 @@ static int xgbe_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
xgbe_set_counts(pdata);
/* Set the maximum fifo amounts */
reg = XP_IOREAD(pdata, XP_PROP_2);
pdata->tx_max_fifo_size = XP_GET_BITS(reg, XP_PROP_2, TX_FIFO_SIZE);
pdata->tx_max_fifo_size = XP_GET_BITS(pdata->pp2, XP_PROP_2,
TX_FIFO_SIZE);
pdata->tx_max_fifo_size *= 16384;
pdata->tx_max_fifo_size = min(pdata->tx_max_fifo_size,
pdata->vdata->tx_max_fifo_size);
pdata->rx_max_fifo_size = XP_GET_BITS(reg, XP_PROP_2, RX_FIFO_SIZE);
pdata->rx_max_fifo_size = XP_GET_BITS(pdata->pp2, XP_PROP_2,
RX_FIFO_SIZE);
pdata->rx_max_fifo_size *= 16384;
pdata->rx_max_fifo_size = min(pdata->rx_max_fifo_size,
pdata->vdata->rx_max_fifo_size);
......
drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
View file @ b93c3ab6
......@@ -2421,22 +2421,21 @@ static int xgbe_phy_link_status(struct xgbe_prv_data *pdata, int *an_restart)
static void xgbe_phy_sfp_gpio_setup(struct xgbe_prv_data *pdata)
{
struct xgbe_phy_data *phy_data = pdata->phy_data;
unsigned int reg;
reg = XP_IOREAD(pdata, XP_PROP_3);
phy_data->sfp_gpio_address = XGBE_GPIO_ADDRESS_PCA9555 +
XP_GET_BITS(reg, XP_PROP_3, GPIO_ADDR);
XP_GET_BITS(pdata->pp3, XP_PROP_3,
GPIO_ADDR);
phy_data->sfp_gpio_mask = XP_GET_BITS(reg, XP_PROP_3, GPIO_MASK);
phy_data->sfp_gpio_mask = XP_GET_BITS(pdata->pp3, XP_PROP_3,
GPIO_MASK);
phy_data->sfp_gpio_rx_los = XP_GET_BITS(reg, XP_PROP_3,
phy_data->sfp_gpio_rx_los = XP_GET_BITS(pdata->pp3, XP_PROP_3,
GPIO_RX_LOS);
phy_data->sfp_gpio_tx_fault = XP_GET_BITS(reg, XP_PROP_3,
phy_data->sfp_gpio_tx_fault = XP_GET_BITS(pdata->pp3, XP_PROP_3,
GPIO_TX_FAULT);
phy_data->sfp_gpio_mod_absent = XP_GET_BITS(reg, XP_PROP_3,
phy_data->sfp_gpio_mod_absent = XP_GET_BITS(pdata->pp3, XP_PROP_3,
GPIO_MOD_ABS);
phy_data->sfp_gpio_rate_select = XP_GET_BITS(reg, XP_PROP_3,
phy_data->sfp_gpio_rate_select = XP_GET_BITS(pdata->pp3, XP_PROP_3,
GPIO_RATE_SELECT);
if (netif_msg_probe(pdata)) {
......@@ -2458,18 +2457,17 @@ static void xgbe_phy_sfp_gpio_setup(struct xgbe_prv_data *pdata)
static void xgbe_phy_sfp_comm_setup(struct xgbe_prv_data *pdata)
{
struct xgbe_phy_data *phy_data = pdata->phy_data;
unsigned int reg, mux_addr_hi, mux_addr_lo;
unsigned int mux_addr_hi, mux_addr_lo;
reg = XP_IOREAD(pdata, XP_PROP_4);
mux_addr_hi = XP_GET_BITS(reg, XP_PROP_4, MUX_ADDR_HI);
mux_addr_lo = XP_GET_BITS(reg, XP_PROP_4, MUX_ADDR_LO);
mux_addr_hi = XP_GET_BITS(pdata->pp4, XP_PROP_4, MUX_ADDR_HI);
mux_addr_lo = XP_GET_BITS(pdata->pp4, XP_PROP_4, MUX_ADDR_LO);
if (mux_addr_lo == XGBE_SFP_DIRECT)
return;
phy_data->sfp_comm = XGBE_SFP_COMM_PCA9545;
phy_data->sfp_mux_address = (mux_addr_hi << 2) + mux_addr_lo;
phy_data->sfp_mux_channel = XP_GET_BITS(reg, XP_PROP_4, MUX_CHAN);
phy_data->sfp_mux_channel = XP_GET_BITS(pdata->pp4, XP_PROP_4,
MUX_CHAN);
if (netif_msg_probe(pdata)) {
dev_dbg(pdata->dev, "SFP: mux_address=%#x\n",
......@@ -2592,13 +2590,11 @@ static bool xgbe_phy_redrv_error(struct xgbe_phy_data *phy_data)
static int xgbe_phy_mdio_reset_setup(struct xgbe_prv_data *pdata)
{
struct xgbe_phy_data *phy_data = pdata->phy_data;
unsigned int reg;
if (phy_data->conn_type != XGBE_CONN_TYPE_MDIO)
return 0;
reg = XP_IOREAD(pdata, XP_PROP_3);
phy_data->mdio_reset = XP_GET_BITS(reg, XP_PROP_3, MDIO_RESET);
phy_data->mdio_reset = XP_GET_BITS(pdata->pp3, XP_PROP_3, MDIO_RESET);
switch (phy_data->mdio_reset) {
case XGBE_MDIO_RESET_NONE:
case XGBE_MDIO_RESET_I2C_GPIO:
......@@ -2612,12 +2608,12 @@ static int xgbe_phy_mdio_reset_setup(struct xgbe_prv_data *pdata)
if (phy_data->mdio_reset == XGBE_MDIO_RESET_I2C_GPIO) {
phy_data->mdio_reset_addr = XGBE_GPIO_ADDRESS_PCA9555 +
XP_GET_BITS(reg, XP_PROP_3,
XP_GET_BITS(pdata->pp3, XP_PROP_3,
MDIO_RESET_I2C_ADDR);
phy_data->mdio_reset_gpio = XP_GET_BITS(reg, XP_PROP_3,
phy_data->mdio_reset_gpio = XP_GET_BITS(pdata->pp3, XP_PROP_3,
MDIO_RESET_I2C_GPIO);
} else if (phy_data->mdio_reset == XGBE_MDIO_RESET_INT_GPIO) {
phy_data->mdio_reset_gpio = XP_GET_BITS(reg, XP_PROP_3,
phy_data->mdio_reset_gpio = XP_GET_BITS(pdata->pp3, XP_PROP_3,
MDIO_RESET_INT_GPIO);
}
......@@ -2707,12 +2703,9 @@ static bool xgbe_phy_conn_type_mismatch(struct xgbe_prv_data *pdata)
static bool xgbe_phy_port_enabled(struct xgbe_prv_data *pdata)
{
unsigned int reg;
reg = XP_IOREAD(pdata, XP_PROP_0);
if (!XP_GET_BITS(reg, XP_PROP_0, PORT_SPEEDS))
if (!XP_GET_BITS(pdata->pp0, XP_PROP_0, PORT_SPEEDS))
return false;
if (!XP_GET_BITS(reg, XP_PROP_0, CONN_TYPE))
if (!XP_GET_BITS(pdata->pp0, XP_PROP_0, CONN_TYPE))
return false;
return true;
......@@ -2921,7 +2914,6 @@ static int xgbe_phy_init(struct xgbe_prv_data *pdata)
struct ethtool_link_ksettings *lks = &pdata->phy.lks;
struct xgbe_phy_data *phy_data;
struct mii_bus *mii;
unsigned int reg;
int ret;
/* Check if enabled */
......@@ -2940,12 +2932,11 @@ static int xgbe_phy_init(struct xgbe_prv_data *pdata)
return -ENOMEM;
pdata->phy_data = phy_data;
reg = XP_IOREAD(pdata, XP_PROP_0);
phy_data->port_mode = XP_GET_BITS(reg, XP_PROP_0, PORT_MODE);
phy_data->port_id = XP_GET_BITS(reg, XP_PROP_0, PORT_ID);
phy_data->port_speeds = XP_GET_BITS(reg, XP_PROP_0, PORT_SPEEDS);
phy_data->conn_type = XP_GET_BITS(reg, XP_PROP_0, CONN_TYPE);
phy_data->mdio_addr = XP_GET_BITS(reg, XP_PROP_0, MDIO_ADDR);
phy_data->port_mode = XP_GET_BITS(pdata->pp0, XP_PROP_0, PORT_MODE);
phy_data->port_id = XP_GET_BITS(pdata->pp0, XP_PROP_0, PORT_ID);
phy_data->port_speeds = XP_GET_BITS(pdata->pp0, XP_PROP_0, PORT_SPEEDS);
phy_data->conn_type = XP_GET_BITS(pdata->pp0, XP_PROP_0, CONN_TYPE);
phy_data->mdio_addr = XP_GET_BITS(pdata->pp0, XP_PROP_0, MDIO_ADDR);
if (netif_msg_probe(pdata)) {
dev_dbg(pdata->dev, "port mode=%u\n", phy_data->port_mode);
dev_dbg(pdata->dev, "port id=%u\n", phy_data->port_id);
......@@ -2954,12 +2945,11 @@ static int xgbe_phy_init(struct xgbe_prv_data *pdata)
dev_dbg(pdata->dev, "mdio addr=%u\n", phy_data->mdio_addr);
}
reg = XP_IOREAD(pdata, XP_PROP_4);
phy_data->redrv = XP_GET_BITS(reg, XP_PROP_4, REDRV_PRESENT);
phy_data->redrv_if = XP_GET_BITS(reg, XP_PROP_4, REDRV_IF);
phy_data->redrv_addr = XP_GET_BITS(reg, XP_PROP_4, REDRV_ADDR);
phy_data->redrv_lane = XP_GET_BITS(reg, XP_PROP_4, REDRV_LANE);
phy_data->redrv_model = XP_GET_BITS(reg, XP_PROP_4, REDRV_MODEL);
phy_data->redrv = XP_GET_BITS(pdata->pp4, XP_PROP_4, REDRV_PRESENT);
phy_data->redrv_if = XP_GET_BITS(pdata->pp4, XP_PROP_4, REDRV_IF);
phy_data->redrv_addr = XP_GET_BITS(pdata->pp4, XP_PROP_4, REDRV_ADDR);
phy_data->redrv_lane = XP_GET_BITS(pdata->pp4, XP_PROP_4, REDRV_LANE);
phy_data->redrv_model = XP_GET_BITS(pdata->pp4, XP_PROP_4, REDRV_MODEL);
if (phy_data->redrv && netif_msg_probe(pdata)) {
dev_dbg(pdata->dev, "redrv present\n");
dev_dbg(pdata->dev, "redrv i/f=%u\n", phy_data->redrv_if);
......
drivers/net/ethernet/amd/xgbe/xgbe.h
View file @ b93c3ab6
......@@ -1027,6 +1027,13 @@ struct xgbe_prv_data {
void __iomem *xprop_regs; /* XGBE property registers */
void __iomem *xi2c_regs; /* XGBE I2C CSRs */
/* Port property registers */
unsigned int pp0;
unsigned int pp1;
unsigned int pp2;
unsigned int pp3;
unsigned int pp4;
/* Overall device lock */
spinlock_t lock;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7