diff options
Diffstat (limited to 'net/lwip')
| -rw-r--r-- | net/lwip/dhcp.c | 3 | ||||
| -rw-r--r-- | net/lwip/dns.c | 3 | ||||
| -rw-r--r-- | net/lwip/net-lwip.c | 88 | ||||
| -rw-r--r-- | net/lwip/ping.c | 11 | ||||
| -rw-r--r-- | net/lwip/tftp.c | 5 | ||||
| -rw-r--r-- | net/lwip/wget.c | 6 |
6 files changed, 96 insertions, 20 deletions
diff --git a/net/lwip/dhcp.c b/net/lwip/dhcp.c index 3b7e4700c6e..92bd7067a7f 100644 --- a/net/lwip/dhcp.c +++ b/net/lwip/dhcp.c @@ -115,7 +115,8 @@ int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) int ret; struct udevice *dev; - net_lwip_set_current(); + if (net_lwip_eth_start() < 0) + return CMD_RET_FAILURE; dev = eth_get_dev(); if (!dev) { diff --git a/net/lwip/dns.c b/net/lwip/dns.c index 149bdb784dc..19172ac959a 100644 --- a/net/lwip/dns.c +++ b/net/lwip/dns.c @@ -121,7 +121,8 @@ int do_dns(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) if (argc == 3) var = argv[2]; - net_lwip_set_current(); + if (net_lwip_eth_start() < 0) + return CMD_RET_FAILURE; return dns_loop(eth_get_dev(), name, var); } diff --git a/net/lwip/net-lwip.c b/net/lwip/net-lwip.c index 6b7b696dbf0..f05c4cd3f64 100644 --- a/net/lwip/net-lwip.c +++ b/net/lwip/net-lwip.c @@ -14,6 +14,7 @@ #include <lwip/init.h> #include <lwip/prot/etharp.h> #include <net.h> +#include <timer.h> /* xx:xx:xx:xx:xx:xx\0 */ #define MAC_ADDR_STRLEN 18 @@ -21,6 +22,8 @@ #if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) void (*push_packet)(void *, int len) = 0; #endif +static int net_try_count; +static int net_restarted; int net_restart_wrap; static uchar net_pkt_buf[(PKTBUFSRX) * PKTSIZE_ALIGN + PKTALIGN]; uchar *net_rx_packets[PKTBUFSRX]; @@ -134,18 +137,27 @@ static int get_udev_ipv4_info(struct udevice *dev, ip4_addr_t *ip, return 0; } -/* Initialize the lwIP stack and the ethernet devices and set current device */ -void net_lwip_set_current(void) +/* + * Initialize the network stack if needed and start the current device if valid + */ +int net_lwip_eth_start(void) { - static bool init_done; - - if (!init_done) { - eth_init_rings(); - eth_init(); - lwip_init(); - init_done = true; + int ret; + + net_init(); + if (eth_is_on_demand_init()) { + eth_halt(); + eth_set_current(); + ret = eth_init(); + if (ret < 0) { + eth_halt(); + return ret; + } + } else { + eth_init_state_only(); } - eth_set_current(); + + return 0; } static struct netif *new_netif(struct udevice *udev, bool with_ip) @@ -224,11 +236,20 @@ void net_lwip_remove_netif(struct netif *netif) free(netif); } +/* + * Initialize the network buffers, an ethernet device, and the lwIP stack + * (once). + */ int net_init(void) { - eth_set_current(); + static bool init_done; - net_lwip_new_netif(eth_get_dev()); + if (!init_done) { + eth_init_rings(); + eth_init(); + lwip_init(); + init_done = true; + } return 0; } @@ -319,5 +340,48 @@ int net_loop(enum proto_t protocol) u32_t sys_now(void) { +#if CONFIG_IS_ENABLED(SANDBOX_TIMER) + return timer_early_get_count(); +#else return get_timer(0); +#endif +} + +int net_start_again(void) +{ + char *nretry; + int retry_forever = 0; + unsigned long retrycnt = 0; + + nretry = env_get("netretry"); + if (nretry) { + if (!strcmp(nretry, "yes")) + retry_forever = 1; + else if (!strcmp(nretry, "no")) + retrycnt = 0; + else if (!strcmp(nretry, "once")) + retrycnt = 1; + else + retrycnt = simple_strtoul(nretry, NULL, 0); + } else { + retrycnt = 0; + retry_forever = 0; + } + + if ((!retry_forever) && (net_try_count > retrycnt)) { + eth_halt(); + /* + * We don't provide a way for the protocol to return an error, + * but this is almost always the reason. + */ + return -ETIMEDOUT; + } + + net_try_count++; + + eth_halt(); +#if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER) + eth_try_another(!net_restarted); +#endif + return eth_init(); } diff --git a/net/lwip/ping.c b/net/lwip/ping.c index c586a96806d..d8042ceecf9 100644 --- a/net/lwip/ping.c +++ b/net/lwip/ping.c @@ -168,10 +168,13 @@ int do_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) if (!ipaddr_aton(argv[1], &addr)) return CMD_RET_USAGE; - net_lwip_set_current(); - - if (ping_loop(eth_get_dev(), &addr) < 0) - return CMD_RET_FAILURE; +restart: + if (net_lwip_eth_start() < 0 || ping_loop(eth_get_dev(), &addr) < 0) { + if (net_start_again() == 0) + goto restart; + else + return CMD_RET_FAILURE; + } return CMD_RET_SUCCESS; } diff --git a/net/lwip/tftp.c b/net/lwip/tftp.c index 123d66b5dba..4f9b2049187 100644 --- a/net/lwip/tftp.c +++ b/net/lwip/tftp.c @@ -280,7 +280,10 @@ int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) goto out; } - net_lwip_set_current(); + if (net_lwip_eth_start() < 0) { + ret = CMD_RET_FAILURE; + goto out; + } if (tftp_loop(eth_get_dev(), laddr, fname, srvip, port) < 0) ret = CMD_RET_FAILURE; diff --git a/net/lwip/wget.c b/net/lwip/wget.c index ec098148835..a3b82908877 100644 --- a/net/lwip/wget.c +++ b/net/lwip/wget.c @@ -471,7 +471,11 @@ static int wget_loop(struct udevice *udev, ulong dst_addr, char *uri) int wget_do_request(ulong dst_addr, char *uri) { - net_lwip_set_current(); + int ret; + + ret = net_lwip_eth_start(); + if (ret < 0) + return ret; if (!wget_info) wget_info = &default_wget_info; |