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path: root/nuttx/drivers/net/e1000.c
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Diffstat (limited to 'nuttx/drivers/net/e1000.c')
-rw-r--r--nuttx/drivers/net/e1000.c307
1 files changed, 150 insertions, 157 deletions
diff --git a/nuttx/drivers/net/e1000.c b/nuttx/drivers/net/e1000.c
index ec2b29b6a..cae6f39b4 100644
--- a/nuttx/drivers/net/e1000.c
+++ b/nuttx/drivers/net/e1000.c
@@ -60,6 +60,7 @@
#include <rgmp/pmap.h>
#include <rgmp/string.h>
#include <rgmp/stdio.h>
+#include <rgmp/utils.h>
#include <rgmp/arch/pci.h>
#include <rgmp/memio.h>
#include "e1000.h"
@@ -104,9 +105,9 @@ struct e1000_dev {
uint32_t io_mem_base;
uint32_t mem_size;
int pci_dev_id;
+ uint16_t pci_addr;
unsigned char src_mac[6];
unsigned char dst_mac[6];
- int irq;
struct irq_action int_desc;
struct tx_ring tx_ring;
struct rx_ring rx_ring;
@@ -308,16 +309,16 @@ void e1000_init(struct e1000_dev *dev)
e1000_outl(dev, E1000_FCRTH, pba*9/10);
// setup tx rings
- txd_phys = PADDR(dev->tx_ring.desc);
- kmem_phys = PADDR(dev->tx_ring.buf);
+ txd_phys = PADDR((uintptr_t)dev->tx_ring.desc);
+ kmem_phys = PADDR((uintptr_t)dev->tx_ring.buf);
for (i=0; i<CONFIG_E1000_N_TX_DESC; i++,kmem_phys+=CONFIG_E1000_BUFF_SIZE) {
- dev->tx_ring.desc[i].base_address = kmem_phys;
- dev->tx_ring.desc[i].packet_length = 0;
- dev->tx_ring.desc[i].cksum_offset = 0;
- dev->tx_ring.desc[i].cksum_origin = 0;
- dev->tx_ring.desc[i].desc_status = 1;
- dev->tx_ring.desc[i].desc_command = (1<<0)|(1<<1)|(1<<3);
- dev->tx_ring.desc[i].special_info = 0;
+ dev->tx_ring.desc[i].base_address = kmem_phys;
+ dev->tx_ring.desc[i].packet_length = 0;
+ dev->tx_ring.desc[i].cksum_offset = 0;
+ dev->tx_ring.desc[i].cksum_origin = 0;
+ dev->tx_ring.desc[i].desc_status = 1;
+ dev->tx_ring.desc[i].desc_command = (1<<0)|(1<<1)|(1<<3);
+ dev->tx_ring.desc[i].special_info = 0;
}
dev->tx_ring.tail = 0;
e1000_outl(dev, E1000_TDT, 0);
@@ -329,15 +330,15 @@ void e1000_init(struct e1000_dev *dev)
e1000_outl(dev, E1000_TXDCTL, 0x01010000);
// setup rx rings
- rxd_phys = PADDR(dev->rx_ring.desc);
- kmem_phys = PADDR(dev->rx_ring.buf);
+ rxd_phys = PADDR((uintptr_t)dev->rx_ring.desc);
+ kmem_phys = PADDR((uintptr_t)dev->rx_ring.buf);
for (i=0; i<CONFIG_E1000_N_RX_DESC; i++,kmem_phys+=CONFIG_E1000_BUFF_SIZE) {
- dev->rx_ring.desc[i].base_address = kmem_phys;
- dev->rx_ring.desc[i].packet_length = 0;
- dev->rx_ring.desc[i].packet_cksum = 0;
- dev->rx_ring.desc[i].desc_status = 0;
- dev->rx_ring.desc[i].desc_errors = 0;
- dev->rx_ring.desc[i].vlan_tag = 0;
+ dev->rx_ring.desc[i].base_address = kmem_phys;
+ dev->rx_ring.desc[i].packet_length = 0;
+ dev->rx_ring.desc[i].packet_cksum = 0;
+ dev->rx_ring.desc[i].desc_status = 0;
+ dev->rx_ring.desc[i].desc_errors = 0;
+ dev->rx_ring.desc[i].vlan_tag = 0;
}
dev->rx_ring.head = 0;
dev->rx_ring.tail = CONFIG_E1000_N_RX_DESC-1;
@@ -378,7 +379,7 @@ static int e1000_transmit(struct e1000_dev *e1000)
{
int tail = e1000->tx_ring.tail;
unsigned char *cp = (unsigned char *)
- (e1000->tx_ring.buf + tail * CONFIG_E1000_BUFF_SIZE);
+ (e1000->tx_ring.buf + tail * CONFIG_E1000_BUFF_SIZE);
int count = e1000->uip_dev.d_len;
/* Verify that the hardware is ready to send another packet. If we get
@@ -387,7 +388,7 @@ static int e1000_transmit(struct e1000_dev *e1000)
*/
if (!e1000->tx_ring.desc[tail].desc_status)
- return -1;
+ return -1;
/* Increment statistics */
@@ -445,14 +446,14 @@ static int e1000_uiptxpoll(struct uip_driver_s *dev)
*/
if (e1000->uip_dev.d_len > 0) {
- uip_arp_out(&e1000->uip_dev);
- e1000_transmit(e1000);
-
- /* Check if there is room in the device to hold another packet. If not,
- * return a non-zero value to terminate the poll.
- */
- if (!e1000->tx_ring.desc[tail].desc_status)
- return -1;
+ uip_arp_out(&e1000->uip_dev);
+ e1000_transmit(e1000);
+
+ /* Check if there is room in the device to hold another packet. If not,
+ * return a non-zero value to terminate the poll.
+ */
+ if (!e1000->tx_ring.desc[tail].desc_status)
+ return -1;
}
/* If zero is returned, the polling will continue until all connections have
@@ -483,75 +484,75 @@ static void e1000_receive(struct e1000_dev *e1000)
{
int head = e1000->rx_ring.head;
unsigned char *cp = (unsigned char *)
- (e1000->rx_ring.buf + head * CONFIG_E1000_BUFF_SIZE);
+ (e1000->rx_ring.buf + head * CONFIG_E1000_BUFF_SIZE);
int cnt;
while (e1000->rx_ring.desc[head].desc_status) {
- /* Check for errors and update statistics */
+ /* Check for errors and update statistics */
- // Here we do not handle packets that exceed packet-buffer size
- if ((e1000->rx_ring.desc[head].desc_status & 3) == 1) {
- cprintf("NIC READ: Oversized packet\n");
- goto next;
- }
+ // Here we do not handle packets that exceed packet-buffer size
+ if ((e1000->rx_ring.desc[head].desc_status & 3) == 1) {
+ cprintf("NIC READ: Oversized packet\n");
+ goto next;
+ }
- /* Check if the packet is a valid size for the uIP buffer configuration */
+ /* Check if the packet is a valid size for the uIP buffer configuration */
- // get the number of actual data-bytes in this packet
- cnt = e1000->rx_ring.desc[head].packet_length;
+ // get the number of actual data-bytes in this packet
+ cnt = e1000->rx_ring.desc[head].packet_length;
- if (cnt > CONFIG_NET_BUFSIZE || cnt < 14) {
- cprintf("NIC READ: invalid package size\n");
- goto next;
- }
+ if (cnt > CONFIG_NET_BUFSIZE || cnt < 14) {
+ cprintf("NIC READ: invalid package size\n");
+ goto next;
+ }
- /* Copy the data data from the hardware to e1000->uip_dev.d_buf. Set
- * amount of data in e1000->uip_dev.d_len
- */
+ /* Copy the data data from the hardware to e1000->uip_dev.d_buf. Set
+ * amount of data in e1000->uip_dev.d_len
+ */
- // now we try to copy these data-bytes to the UIP buffer
- memcpy(e1000->uip_dev.d_buf, cp, cnt);
- e1000->uip_dev.d_len = cnt;
+ // now we try to copy these data-bytes to the UIP buffer
+ memcpy(e1000->uip_dev.d_buf, cp, cnt);
+ e1000->uip_dev.d_len = cnt;
- /* We only accept IP packets of the configured type and ARP packets */
+ /* We only accept IP packets of the configured type and ARP packets */
#ifdef CONFIG_NET_IPv6
- if (BUF->type == HTONS(UIP_ETHTYPE_IP6))
+ if (BUF->type == HTONS(UIP_ETHTYPE_IP6))
#else
- if (BUF->type == HTONS(UIP_ETHTYPE_IP))
+ if (BUF->type == HTONS(UIP_ETHTYPE_IP))
#endif
- {
- uip_arp_ipin(&e1000->uip_dev);
- uip_input(&e1000->uip_dev);
-
- /* If the above function invocation resulted in data that should be
- * sent out on the network, the field d_len will set to a value > 0.
- */
-
- if (e1000->uip_dev.d_len > 0) {
- uip_arp_out(&e1000->uip_dev);
- e1000_transmit(e1000);
- }
- }
- else if (BUF->type == htons(UIP_ETHTYPE_ARP)) {
- uip_arp_arpin(&e1000->uip_dev);
-
- /* If the above function invocation resulted in data that should be
- * sent out on the network, the field d_len will set to a value > 0.
- */
-
- if (e1000->uip_dev.d_len > 0) {
- e1000_transmit(e1000);
- }
- }
+ {
+ uip_arp_ipin(&e1000->uip_dev);
+ uip_input(&e1000->uip_dev);
+
+ /* If the above function invocation resulted in data that should be
+ * sent out on the network, the field d_len will set to a value > 0.
+ */
+
+ if (e1000->uip_dev.d_len > 0) {
+ uip_arp_out(&e1000->uip_dev);
+ e1000_transmit(e1000);
+ }
+ }
+ else if (BUF->type == htons(UIP_ETHTYPE_ARP)) {
+ uip_arp_arpin(&e1000->uip_dev);
+
+ /* If the above function invocation resulted in data that should be
+ * sent out on the network, the field d_len will set to a value > 0.
+ */
+
+ if (e1000->uip_dev.d_len > 0) {
+ e1000_transmit(e1000);
+ }
+ }
next:
- e1000->rx_ring.desc[head].desc_status = 0;
- e1000->rx_ring.head = (head + 1) % CONFIG_E1000_N_RX_DESC;
- e1000->rx_ring.free++;
- head = e1000->rx_ring.head;
- cp = (unsigned char *)(e1000->rx_ring.buf + head * CONFIG_E1000_BUFF_SIZE);
+ e1000->rx_ring.desc[head].desc_status = 0;
+ e1000->rx_ring.head = (head + 1) % CONFIG_E1000_N_RX_DESC;
+ e1000->rx_ring.free++;
+ head = e1000->rx_ring.head;
+ cp = (unsigned char *)(e1000->rx_ring.buf + head * CONFIG_E1000_BUFF_SIZE);
}
}
@@ -615,7 +616,7 @@ static void e1000_polltimer(int argc, uint32_t arg, ...)
* the TX poll if he are unable to accept another packet for transmission.
*/
if (!e1000->tx_ring.desc[tail].desc_status)
- return;
+ return;
/* If so, update TCP timing states and poll uIP for new XMIT data. Hmmm..
* might be bug here. Does this mean if there is a transmit in progress,
@@ -651,8 +652,8 @@ static int e1000_ifup(struct uip_driver_s *dev)
struct e1000_dev *e1000 = (struct e1000_dev *)dev->d_private;
ndbg("Bringing up: %d.%d.%d.%d\n",
- dev->d_ipaddr & 0xff, (dev->d_ipaddr >> 8) & 0xff,
- (dev->d_ipaddr >> 16) & 0xff, dev->d_ipaddr >> 24 );
+ dev->d_ipaddr & 0xff, (dev->d_ipaddr >> 8) & 0xff,
+ (dev->d_ipaddr >> 16) & 0xff, dev->d_ipaddr >> 24 );
/* Initialize PHYs, the Ethernet interface, and setup up Ethernet interrupts */
e1000_init(e1000);
@@ -662,9 +663,9 @@ static int e1000_ifup(struct uip_driver_s *dev)
(void)wd_start(e1000->txpoll, E1000_WDDELAY, e1000_polltimer, 1, (uint32_t)e1000);
if (e1000_inl(e1000, E1000_STATUS) & 2)
- e1000->bifup = true;
+ e1000->bifup = true;
else
- e1000->bifup = false;
+ e1000->bifup = false;
return OK;
}
@@ -749,9 +750,9 @@ static int e1000_txavail(struct uip_driver_s *dev)
/* Ignore the notification if the interface is not yet up */
if (e1000->bifup) {
- /* Check if there is room in the hardware to hold another outgoing packet. */
- if (e1000->tx_ring.desc[tail].desc_status)
- (void)uip_poll(&e1000->uip_dev, e1000_uiptxpoll);
+ /* Check if there is room in the hardware to hold another outgoing packet. */
+ if (e1000->tx_ring.desc[tail].desc_status)
+ (void)uip_poll(&e1000->uip_dev, e1000_uiptxpoll);
}
irqrestore(flags);
@@ -779,11 +780,11 @@ static int e1000_txavail(struct uip_driver_s *dev)
#ifdef CONFIG_NET_IGMP
static int e1000_addmac(struct uip_driver_s *dev, const uint8_t *mac)
{
- struct e1000_dev *e1000 = (struct e1000_dev *)dev->d_private;
+ struct e1000_dev *e1000 = (struct e1000_dev *)dev->d_private;
- /* Add the MAC address to the hardware multicast routing table */
+ /* Add the MAC address to the hardware multicast routing table */
- return OK;
+ return OK;
}
#endif
@@ -808,15 +809,15 @@ static int e1000_addmac(struct uip_driver_s *dev, const uint8_t *mac)
#ifdef CONFIG_NET_IGMP
static int e1000_rmmac(struct uip_driver_s *dev, const uint8_t *mac)
{
- struct e1000_dev *e1000 = (struct e1000_dev *)dev->d_private;
+ struct e1000_dev *e1000 = (struct e1000_dev *)dev->d_private;
- /* Add the MAC address to the hardware multicast routing table */
+ /* Add the MAC address to the hardware multicast routing table */
- return OK;
+ return OK;
}
#endif
-irqreturn_t e1000_interrupt_handler(struct Trapframe *tf, void *dev_id)
+static irqreturn_t e1000_interrupt_handler(int irq, void *dev_id)
{
struct e1000_dev *e1000 = (struct e1000_dev *)dev_id;
@@ -826,27 +827,27 @@ irqreturn_t e1000_interrupt_handler(struct Trapframe *tf, void *dev_id)
// not for me
if (intr_cause == 0)
- return IRQ_NONE;
+ return IRQ_NONE;
/* Handle interrupts according to status bit settings */
// Link status change
if (intr_cause & (1<<2)) {
- if (e1000_inl(e1000, E1000_STATUS) & 2)
- e1000->bifup = true;
- else
- e1000->bifup = false;
+ if (e1000_inl(e1000, E1000_STATUS) & 2)
+ e1000->bifup = true;
+ else
+ e1000->bifup = false;
}
/* Check if we received an incoming packet, if so, call skel_receive() */
// Rx-descriptor Timer expired
if (intr_cause & (1<<7))
- e1000_receive(e1000);
+ e1000_receive(e1000);
// Tx queue empty
if (intr_cause & (1<<1))
- wd_cancel(e1000->txtimeout);
+ wd_cancel(e1000->txtimeout);
/* Check is a packet transmission just completed. If so, call skel_txdone.
* This may disable further Tx interrupts if there are no pending
@@ -855,17 +856,17 @@ irqreturn_t e1000_interrupt_handler(struct Trapframe *tf, void *dev_id)
// Tx-descriptor Written back
if (intr_cause & (1<<0))
- uip_poll(&e1000->uip_dev, e1000_uiptxpoll);
+ uip_poll(&e1000->uip_dev, e1000_uiptxpoll);
// Rx-Descriptors Low
if (intr_cause & (1<<4)) {
- int tail;
- tail = e1000->rx_ring.tail + e1000->rx_ring.free;
- tail %= CONFIG_E1000_N_RX_DESC;
- e1000->rx_ring.tail = tail;
- e1000->rx_ring.free = 0;
- e1000_outl(e1000, E1000_RDT, tail);
+ int tail;
+ tail = e1000->rx_ring.tail + e1000->rx_ring.free;
+ tail %= CONFIG_E1000_N_RX_DESC;
+ e1000->rx_ring.tail = tail;
+ e1000->rx_ring.free = 0;
+ e1000_outl(e1000, E1000_RDT, tail);
}
return IRQ_HANDLED;
@@ -885,20 +886,21 @@ static pci_id_t e1000_id_table[] = {
static int e1000_probe(uint16_t addr, pci_id_t id)
{
uint32_t mmio_base, mmio_size;
- uint32_t pci_cmd, size;
- int err, irq, flags;
+ uint32_t size;
+ int err;
void *kmem, *omem;
struct e1000_dev *dev;
// alloc e1000_dev memory
- dev = kzalloc(sizeof(struct e1000_dev));
- if (dev == NULL)
- return -1;
+ if ((dev = kzalloc(sizeof(struct e1000_dev))) == NULL)
+ return -1;
+
+ // save pci addr
+ dev->pci_addr = addr;
// enable device
- err = pci_enable_device(addr, PCI_RESOURCE_MEM);
- if (err)
- goto error;
+ if ((err = pci_enable_device(addr, PCI_BUS_MASTER)) < 0)
+ goto error;
// get e1000 device type
dev->pci_dev_id = id.join;
@@ -908,33 +910,20 @@ static int e1000_probe(uint16_t addr, pci_id_t id)
mmio_size = pci_resource_len(addr, 0);
err = rgmp_memmap_nocache(mmio_base, mmio_size, mmio_base);
if (err)
- goto error;
+ goto error;
dev->phy_mem_base = mmio_base;
dev->io_mem_base = mmio_base;
dev->mem_size = mmio_size;
- // make sure the controller's Bus Master capability is enabled
- pci_cmd = pci_config_readl(addr, PCI_COMMAND);
- pci_cmd |= (1<<2);
- pci_config_writel(addr, PCI_COMMAND, pci_cmd);
-
// MAC address
memset(dev->dst_mac, 0xFF, 6);
memcpy(dev->src_mac, (void *)(dev->io_mem_base+E1000_RA), 6);
- // get e1000 IRQ
- flags = 0;
- irq = pci_enable_msi(addr);
- if (irq == 0) {
- irq = pci_read_irq(addr);
- flags |= IDC_SHARE;
- }
- dev->irq = irq;
+ // IRQ setup
dev->int_desc.handler = e1000_interrupt_handler;
dev->int_desc.dev_id = dev;
- err = rgmp_request_irq(irq, &dev->int_desc, flags);
- if (err)
- goto err0;
+ if ((err = pci_request_irq(addr, &dev->int_desc, 0)) < 0)
+ goto err0;
// Here we alloc a big block of memory once and make it
// aligned to page boundary and multiple of page size. This
@@ -942,15 +931,19 @@ static int e1000_probe(uint16_t addr, pci_id_t id)
// should be mapped no-cache which will hugely reduce memory
// access performance. The page size alloc will restrict
// this bad effect only within the memory we alloc here.
+ //
+ // NEED FIX: the memalign may alloc memory continous in
+ // virtual address but dis-continous in physical address
+ // due to RGMP memory setup.
size = CONFIG_E1000_N_TX_DESC * sizeof(struct tx_desc) +
- CONFIG_E1000_N_TX_DESC * CONFIG_E1000_BUFF_SIZE +
- CONFIG_E1000_N_RX_DESC * sizeof(struct rx_desc) +
- CONFIG_E1000_N_RX_DESC * CONFIG_E1000_BUFF_SIZE;
+ CONFIG_E1000_N_TX_DESC * CONFIG_E1000_BUFF_SIZE +
+ CONFIG_E1000_N_RX_DESC * sizeof(struct rx_desc) +
+ CONFIG_E1000_N_RX_DESC * CONFIG_E1000_BUFF_SIZE;
size = ROUNDUP(size, PGSIZE);
omem = kmem = memalign(PGSIZE, size);
if (kmem == NULL) {
- err = -ENOMEM;
- goto err1;
+ err = -ENOMEM;
+ goto err1;
}
rgmp_memremap_nocache((uintptr_t)kmem, size);
@@ -991,7 +984,7 @@ static int e1000_probe(uint16_t addr, pci_id_t id)
/* Register the device with the OS so that socket IOCTLs can be performed */
err = netdev_register(&dev->uip_dev);
if (err)
- goto err2;
+ goto err2;
// insert into e1000_list
dev->next = e1000_list.next;
@@ -1000,14 +993,14 @@ static int e1000_probe(uint16_t addr, pci_id_t id)
return 0;
- err2:
+err2:
rgmp_memremap((uintptr_t)omem, size);
free(omem);
- err1:
- rgmp_free_irq(irq, &dev->int_desc);
- err0:
+err1:
+ pci_free_irq(addr);
+err0:
rgmp_memunmap(mmio_base, mmio_size);
- error:
+error:
kfree(dev);
cprintf("e1000 device probe fail: %d\n", err);
return err;
@@ -1028,21 +1021,21 @@ void e1000_mod_exit(void)
struct e1000_dev *dev;
size = CONFIG_E1000_N_TX_DESC * sizeof(struct tx_desc) +
- CONFIG_E1000_N_TX_DESC * CONFIG_E1000_BUFF_SIZE +
- CONFIG_E1000_N_RX_DESC * sizeof(struct rx_desc) +
- CONFIG_E1000_N_RX_DESC * CONFIG_E1000_BUFF_SIZE;
+ CONFIG_E1000_N_TX_DESC * CONFIG_E1000_BUFF_SIZE +
+ CONFIG_E1000_N_RX_DESC * sizeof(struct rx_desc) +
+ CONFIG_E1000_N_RX_DESC * CONFIG_E1000_BUFF_SIZE;
size = ROUNDUP(size, PGSIZE);
for (dev=e1000_list.next; dev!=NULL; dev=dev->next) {
- netdev_unregister(&dev->uip_dev);
- e1000_reset(dev);
- wd_delete(dev->txpoll);
- wd_delete(dev->txtimeout);
- rgmp_memremap((uintptr_t)dev->tx_ring.desc, size);
- free(dev->tx_ring.desc);
- rgmp_free_irq(dev->irq, &dev->int_desc);
- rgmp_memunmap((uintptr_t)dev->io_mem_base, dev->mem_size);
- kfree(dev);
+ netdev_unregister(&dev->uip_dev);
+ e1000_reset(dev);
+ wd_delete(dev->txpoll);
+ wd_delete(dev->txtimeout);
+ rgmp_memremap((uintptr_t)dev->tx_ring.desc, size);
+ free(dev->tx_ring.desc);
+ pci_free_irq(dev->pci_addr);
+ rgmp_memunmap((uintptr_t)dev->io_mem_base, dev->mem_size);
+ kfree(dev);
}
e1000_list.next = NULL;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-13 08:11:21 +0000