drivers: net: xgene: Add 10GbE support with ring manager v2
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
committed by
David S. Miller
parent
ed9b7da019
commit
bc1b7c132a
@ -102,6 +102,7 @@ enum xgene_enet_rm {
|
||||
|
||||
#define BLOCK_ETH_CSR_OFFSET 0x2000
|
||||
#define BLOCK_ETH_RING_IF_OFFSET 0x9000
|
||||
#define BLOCK_ETH_CLKRST_CSR_OFFSET 0xc000
|
||||
#define BLOCK_ETH_DIAG_CSR_OFFSET 0xD000
|
||||
|
||||
#define BLOCK_ETH_MAC_OFFSET 0x0000
|
||||
|
@ -28,6 +28,8 @@
|
||||
#define RES_RING_CSR 1
|
||||
#define RES_RING_CMD 2
|
||||
|
||||
static const struct of_device_id xgene_enet_of_match[];
|
||||
|
||||
static void xgene_enet_init_bufpool(struct xgene_enet_desc_ring *buf_pool)
|
||||
{
|
||||
struct xgene_enet_raw_desc16 *raw_desc;
|
||||
@ -632,6 +634,25 @@ static void xgene_enet_free_desc_rings(struct xgene_enet_pdata *pdata)
|
||||
}
|
||||
}
|
||||
|
||||
static bool is_irq_mbox_required(struct xgene_enet_pdata *pdata,
|
||||
struct xgene_enet_desc_ring *ring)
|
||||
{
|
||||
if ((pdata->enet_id == XGENE_ENET2) &&
|
||||
(xgene_enet_ring_owner(ring->id) == RING_OWNER_CPU)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static void __iomem *xgene_enet_ring_cmd_base(struct xgene_enet_pdata *pdata,
|
||||
struct xgene_enet_desc_ring *ring)
|
||||
{
|
||||
u8 num_ring_id_shift = pdata->ring_ops->num_ring_id_shift;
|
||||
|
||||
return pdata->ring_cmd_addr + (ring->num << num_ring_id_shift);
|
||||
}
|
||||
|
||||
static struct xgene_enet_desc_ring *xgene_enet_create_desc_ring(
|
||||
struct net_device *ndev, u32 ring_num,
|
||||
enum xgene_enet_ring_cfgsize cfgsize, u32 ring_id)
|
||||
@ -663,7 +684,18 @@ static struct xgene_enet_desc_ring *xgene_enet_create_desc_ring(
|
||||
}
|
||||
ring->size = size;
|
||||
|
||||
ring->cmd_base = pdata->ring_cmd_addr + (ring->num << 6);
|
||||
if (is_irq_mbox_required(pdata, ring)) {
|
||||
ring->irq_mbox_addr = dma_zalloc_coherent(dev, INTR_MBOX_SIZE,
|
||||
&ring->irq_mbox_dma, GFP_KERNEL);
|
||||
if (!ring->irq_mbox_addr) {
|
||||
dma_free_coherent(dev, size, ring->desc_addr,
|
||||
ring->dma);
|
||||
devm_kfree(dev, ring);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
ring->cmd_base = xgene_enet_ring_cmd_base(pdata, ring);
|
||||
ring->cmd = ring->cmd_base + INC_DEC_CMD_ADDR;
|
||||
ring = pdata->ring_ops->setup(ring);
|
||||
netdev_dbg(ndev, "ring info: num=%d size=%d id=%d slots=%d\n",
|
||||
@ -677,12 +709,34 @@ static u16 xgene_enet_get_ring_id(enum xgene_ring_owner owner, u8 bufnum)
|
||||
return (owner << 6) | (bufnum & GENMASK(5, 0));
|
||||
}
|
||||
|
||||
static enum xgene_ring_owner xgene_derive_ring_owner(struct xgene_enet_pdata *p)
|
||||
{
|
||||
enum xgene_ring_owner owner;
|
||||
|
||||
if (p->enet_id == XGENE_ENET1) {
|
||||
switch (p->phy_mode) {
|
||||
case PHY_INTERFACE_MODE_SGMII:
|
||||
owner = RING_OWNER_ETH0;
|
||||
break;
|
||||
default:
|
||||
owner = (!p->port_id) ? RING_OWNER_ETH0 :
|
||||
RING_OWNER_ETH1;
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
owner = (!p->port_id) ? RING_OWNER_ETH0 : RING_OWNER_ETH1;
|
||||
}
|
||||
|
||||
return owner;
|
||||
}
|
||||
|
||||
static int xgene_enet_create_desc_rings(struct net_device *ndev)
|
||||
{
|
||||
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
|
||||
struct device *dev = ndev_to_dev(ndev);
|
||||
struct xgene_enet_desc_ring *rx_ring, *tx_ring, *cp_ring;
|
||||
struct xgene_enet_desc_ring *buf_pool = NULL;
|
||||
enum xgene_ring_owner owner;
|
||||
u8 cpu_bufnum = pdata->cpu_bufnum;
|
||||
u8 eth_bufnum = pdata->eth_bufnum;
|
||||
u8 bp_bufnum = pdata->bp_bufnum;
|
||||
@ -691,6 +745,7 @@ static int xgene_enet_create_desc_rings(struct net_device *ndev)
|
||||
int ret;
|
||||
|
||||
/* allocate rx descriptor ring */
|
||||
owner = xgene_derive_ring_owner(pdata);
|
||||
ring_id = xgene_enet_get_ring_id(RING_OWNER_CPU, cpu_bufnum++);
|
||||
rx_ring = xgene_enet_create_desc_ring(ndev, ring_num++,
|
||||
RING_CFGSIZE_16KB, ring_id);
|
||||
@ -700,7 +755,8 @@ static int xgene_enet_create_desc_rings(struct net_device *ndev)
|
||||
}
|
||||
|
||||
/* allocate buffer pool for receiving packets */
|
||||
ring_id = xgene_enet_get_ring_id(RING_OWNER_ETH0, bp_bufnum++);
|
||||
owner = xgene_derive_ring_owner(pdata);
|
||||
ring_id = xgene_enet_get_ring_id(owner, bp_bufnum++);
|
||||
buf_pool = xgene_enet_create_desc_ring(ndev, ring_num++,
|
||||
RING_CFGSIZE_2KB, ring_id);
|
||||
if (!buf_pool) {
|
||||
@ -729,7 +785,8 @@ static int xgene_enet_create_desc_rings(struct net_device *ndev)
|
||||
pdata->rx_ring = rx_ring;
|
||||
|
||||
/* allocate tx descriptor ring */
|
||||
ring_id = xgene_enet_get_ring_id(RING_OWNER_ETH0, eth_bufnum++);
|
||||
owner = xgene_derive_ring_owner(pdata);
|
||||
ring_id = xgene_enet_get_ring_id(owner, eth_bufnum++);
|
||||
tx_ring = xgene_enet_create_desc_ring(ndev, ring_num++,
|
||||
RING_CFGSIZE_16KB, ring_id);
|
||||
if (!tx_ring) {
|
||||
@ -957,7 +1014,10 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
|
||||
pdata->clk = NULL;
|
||||
}
|
||||
|
||||
base_addr = pdata->base_addr - (pdata->port_id * MAC_OFFSET);
|
||||
if (pdata->phy_mode != PHY_INTERFACE_MODE_XGMII)
|
||||
base_addr = pdata->base_addr - (pdata->port_id * MAC_OFFSET);
|
||||
else
|
||||
base_addr = pdata->base_addr;
|
||||
pdata->eth_csr_addr = base_addr + BLOCK_ETH_CSR_OFFSET;
|
||||
pdata->eth_ring_if_addr = base_addr + BLOCK_ETH_RING_IF_OFFSET;
|
||||
pdata->eth_diag_csr_addr = base_addr + BLOCK_ETH_DIAG_CSR_OFFSET;
|
||||
@ -1029,24 +1089,44 @@ static void xgene_enet_setup_ops(struct xgene_enet_pdata *pdata)
|
||||
break;
|
||||
}
|
||||
|
||||
switch (pdata->port_id) {
|
||||
case 0:
|
||||
pdata->cpu_bufnum = START_CPU_BUFNUM_0;
|
||||
pdata->eth_bufnum = START_ETH_BUFNUM_0;
|
||||
pdata->bp_bufnum = START_BP_BUFNUM_0;
|
||||
pdata->ring_num = START_RING_NUM_0;
|
||||
break;
|
||||
case 1:
|
||||
pdata->cpu_bufnum = START_CPU_BUFNUM_1;
|
||||
pdata->eth_bufnum = START_ETH_BUFNUM_1;
|
||||
pdata->bp_bufnum = START_BP_BUFNUM_1;
|
||||
pdata->ring_num = START_RING_NUM_1;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
if (pdata->enet_id == XGENE_ENET1) {
|
||||
switch (pdata->port_id) {
|
||||
case 0:
|
||||
pdata->cpu_bufnum = START_CPU_BUFNUM_0;
|
||||
pdata->eth_bufnum = START_ETH_BUFNUM_0;
|
||||
pdata->bp_bufnum = START_BP_BUFNUM_0;
|
||||
pdata->ring_num = START_RING_NUM_0;
|
||||
break;
|
||||
case 1:
|
||||
pdata->cpu_bufnum = START_CPU_BUFNUM_1;
|
||||
pdata->eth_bufnum = START_ETH_BUFNUM_1;
|
||||
pdata->bp_bufnum = START_BP_BUFNUM_1;
|
||||
pdata->ring_num = START_RING_NUM_1;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
pdata->ring_ops = &xgene_ring1_ops;
|
||||
} else {
|
||||
switch (pdata->port_id) {
|
||||
case 0:
|
||||
pdata->cpu_bufnum = X2_START_CPU_BUFNUM_0;
|
||||
pdata->eth_bufnum = X2_START_ETH_BUFNUM_0;
|
||||
pdata->bp_bufnum = X2_START_BP_BUFNUM_0;
|
||||
pdata->ring_num = X2_START_RING_NUM_0;
|
||||
break;
|
||||
case 1:
|
||||
pdata->cpu_bufnum = X2_START_CPU_BUFNUM_1;
|
||||
pdata->eth_bufnum = X2_START_ETH_BUFNUM_1;
|
||||
pdata->bp_bufnum = X2_START_BP_BUFNUM_1;
|
||||
pdata->ring_num = X2_START_RING_NUM_1;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
pdata->rm = RM0;
|
||||
pdata->ring_ops = &xgene_ring2_ops;
|
||||
}
|
||||
|
||||
pdata->ring_ops = &xgene_ring1_ops;
|
||||
}
|
||||
|
||||
static void xgene_enet_napi_add(struct xgene_enet_pdata *pdata)
|
||||
@ -1082,6 +1162,7 @@ static int xgene_enet_probe(struct platform_device *pdev)
|
||||
struct xgene_enet_pdata *pdata;
|
||||
struct device *dev = &pdev->dev;
|
||||
struct xgene_mac_ops *mac_ops;
|
||||
const struct of_device_id *of_id;
|
||||
int ret;
|
||||
|
||||
ndev = alloc_etherdev(sizeof(struct xgene_enet_pdata));
|
||||
@ -1100,6 +1181,17 @@ static int xgene_enet_probe(struct platform_device *pdev)
|
||||
NETIF_F_GSO |
|
||||
NETIF_F_GRO;
|
||||
|
||||
#ifdef CONFIG_OF
|
||||
of_id = of_match_device(xgene_enet_of_match, &pdev->dev);
|
||||
if (of_id) {
|
||||
pdata->enet_id = (enum xgene_enet_id)of_id->data;
|
||||
if (!pdata->enet_id) {
|
||||
free_netdev(ndev);
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
ret = xgene_enet_get_resources(pdata);
|
||||
if (ret)
|
||||
goto err;
|
||||
@ -1171,9 +1263,10 @@ MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match);
|
||||
|
||||
#ifdef CONFIG_OF
|
||||
static const struct of_device_id xgene_enet_of_match[] = {
|
||||
{.compatible = "apm,xgene-enet",},
|
||||
{.compatible = "apm,xgene1-sgenet",},
|
||||
{.compatible = "apm,xgene1-xgenet",},
|
||||
{.compatible = "apm,xgene-enet", .data = (void *)XGENE_ENET1},
|
||||
{.compatible = "apm,xgene1-sgenet", .data = (void *)XGENE_ENET1},
|
||||
{.compatible = "apm,xgene1-xgenet", .data = (void *)XGENE_ENET1},
|
||||
{.compatible = "apm,xgene2-xgenet", .data = (void *)XGENE_ENET2},
|
||||
{},
|
||||
};
|
||||
|
||||
|
@ -35,6 +35,7 @@
|
||||
#include <linux/if_vlan.h>
|
||||
#include <linux/phy.h>
|
||||
#include "xgene_enet_hw.h"
|
||||
#include "xgene_enet_ring2.h"
|
||||
|
||||
#define XGENE_DRV_VERSION "v1.0"
|
||||
#define XGENE_ENET_MAX_MTU 1536
|
||||
@ -51,12 +52,27 @@
|
||||
#define START_BP_BUFNUM_1 0x2A
|
||||
#define START_RING_NUM_1 264
|
||||
|
||||
#define X2_START_CPU_BUFNUM_0 0
|
||||
#define X2_START_ETH_BUFNUM_0 0
|
||||
#define X2_START_BP_BUFNUM_0 0x20
|
||||
#define X2_START_RING_NUM_0 0
|
||||
|
||||
#define X2_START_CPU_BUFNUM_1 0xc
|
||||
#define X2_START_ETH_BUFNUM_1 0
|
||||
#define X2_START_BP_BUFNUM_1 0x20
|
||||
#define X2_START_RING_NUM_1 256
|
||||
|
||||
#define IRQ_ID_SIZE 16
|
||||
#define XGENE_MAX_TXC_RINGS 1
|
||||
|
||||
#define PHY_POLL_LINK_ON (10 * HZ)
|
||||
#define PHY_POLL_LINK_OFF (PHY_POLL_LINK_ON / 5)
|
||||
|
||||
enum xgene_enet_id {
|
||||
XGENE_ENET1 = 1,
|
||||
XGENE_ENET2
|
||||
};
|
||||
|
||||
/* software context of a descriptor ring */
|
||||
struct xgene_enet_desc_ring {
|
||||
struct net_device *ndev;
|
||||
@ -124,6 +140,7 @@ struct xgene_enet_pdata {
|
||||
int phy_speed;
|
||||
struct clk *clk;
|
||||
struct platform_device *pdev;
|
||||
enum xgene_enet_id enet_id;
|
||||
struct xgene_enet_desc_ring *tx_ring;
|
||||
struct xgene_enet_desc_ring *rx_ring;
|
||||
char *dev_name;
|
||||
|
@ -122,7 +122,6 @@ static bool xgene_enet_rd_indirect(void __iomem *addr, void __iomem *rd,
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static void xgene_enet_rd_mac(struct xgene_enet_pdata *pdata,
|
||||
u32 rd_addr, u32 *rd_data)
|
||||
{
|
||||
|
@ -24,6 +24,23 @@
|
||||
#define BLOCK_AXG_MAC_OFFSET 0x0800
|
||||
#define BLOCK_AXG_MAC_CSR_OFFSET 0x2000
|
||||
|
||||
#define XGENET_SRST_ADDR 0x0000
|
||||
#define XGENET_CLKEN_ADDR 0x0008
|
||||
|
||||
#define CSR_CLK BIT(0)
|
||||
#define XGENET_CLK BIT(1)
|
||||
#define PCS_CLK BIT(3)
|
||||
#define AN_REF_CLK BIT(4)
|
||||
#define AN_CLK BIT(5)
|
||||
#define AD_CLK BIT(6)
|
||||
|
||||
#define CSR_RST BIT(0)
|
||||
#define XGENET_RST BIT(1)
|
||||
#define PCS_RST BIT(3)
|
||||
#define AN_REF_RST BIT(4)
|
||||
#define AN_RST BIT(5)
|
||||
#define AD_RST BIT(6)
|
||||
|
||||
#define AXGMAC_CONFIG_0 0x0000
|
||||
#define AXGMAC_CONFIG_1 0x0004
|
||||
#define HSTMACRST BIT(31)
|
||||
|
Reference in New Issue
Block a user