From b80fc5be8900500b84f2a9416c0af8d20eeb632c Mon Sep 17 00:00:00 2001 From: David van Moolenbroek Date: Tue, 2 Dec 2014 14:00:04 +0000 Subject: [PATCH] atl2: use new libnetdriver Change-Id: I65de5d29a75d5f3101b2c5ab16a4b0d79bd77cc3 --- minix/drivers/net/atl2/atl2.c | 526 +++++++++------------------------- 1 file changed, 137 insertions(+), 389 deletions(-) diff --git a/minix/drivers/net/atl2/atl2.c b/minix/drivers/net/atl2/atl2.c index 97abf5e12..e9f332fbd 100644 --- a/minix/drivers/net/atl2/atl2.c +++ b/minix/drivers/net/atl2/atl2.c @@ -7,18 +7,14 @@ #include #include -#include -#include -#include #include -#include -#include +#include #include #include "atl2.h" #define VERBOSE 0 /* Verbose debugging output */ -#define ATL2_FKEY 1 /* Register Shift+F11 for dumping statistics */ +#define ATL2_FKEY 11 /* Use Shift+Fn to dump statistics (0=off) */ #if VERBOSE #define ATL2_DEBUG(x) printf x @@ -36,15 +32,14 @@ static struct { int devind; /* PCI device index */ int irq; /* IRQ number */ int hook_id; /* IRQ hook ID */ - int mode; /* datalink mode */ - volatile uint8_t *base; /* base address of memory-mapped registers */ + uint8_t *base; /* base address of memory-mapped registers */ uint32_t size; /* size of memory-mapped area */ uint32_t hwaddr[2]; /* MAC address, in register representation */ uint8_t *txd_base; /* local address of TxD ring buffer base */ uint32_t *txs_base; /* local address of TxS ring buffer base */ uint8_t *rxd_base_u; /* unaligned base address of RxD ring buffer */ - rxd_t *rxd_base; /* local address of RxD ring buffer base */ + rxd_t *rxd_base; /* local address of RxD ring buffer base */ int rxd_align; /* alignment offset of RxD ring buffer */ @@ -58,21 +53,11 @@ static struct { int txs_num; /* head-tail offset into TxS, in elements */ int rxd_tail; /* tail index into RxD, in elements */ - int flags; /* state flags (ATL2_FLAG_) */ - message read_msg; /* suspended read request (READ_PEND) */ - message write_msg; /* suspended write request (WRITE_PEND) */ - endpoint_t task_endpt; /* requester endpoint (PACK_RCVD|PACK_SENT) */ - size_t recv_count; /* packet size (PACK_RCVD) */ + int rx_avail; /* is there a packet available for receipt? */ eth_stat_t stat; /* statistics */ } state; -#define ATL2_FLAG_RX_AVAIL 0x01 /* packet available for receipt */ -#define ATL2_FLAG_READ_PEND 0x02 /* read request pending */ -#define ATL2_FLAG_WRITE_PEND 0x04 /* write request pending */ -#define ATL2_FLAG_PACK_RCVD 0x08 /* packet received */ -#define ATL2_FLAG_PACK_SENT 0x10 /* packet transmitted */ - #define ATL2_READ_U8(off) (*(volatile uint8_t *)(state.base + (off))) #define ATL2_READ_U16(off) (*(volatile uint16_t *)(state.base + (off))) #define ATL2_READ_U32(off) (*(volatile uint32_t *)(state.base + (off))) @@ -85,7 +70,25 @@ static struct { #define ATL2_ALIGN_32(n) (((n) + 3) & ~3) -static iovec_s_t iovec[NR_IOREQS]; +static int atl2_init(unsigned int instance, ether_addr_t *addr); +static void atl2_stop(void); +static void atl2_mode(unsigned int mode); +static int atl2_send(struct netdriver_data *data, size_t size); +static ssize_t atl2_recv(struct netdriver_data *data, size_t max); +static void atl2_stat(eth_stat_t *stat); +static void atl2_intr(unsigned int mask); +static void atl2_other(const message *m_ptr, int ipc_status); + +static const struct netdriver atl2_table = { + .ndr_init = atl2_init, + .ndr_stop = atl2_stop, + .ndr_mode = atl2_mode, + .ndr_recv = atl2_recv, + .ndr_send = atl2_send, + .ndr_stat = atl2_stat, + .ndr_intr = atl2_intr, + .ndr_other = atl2_other +}; /* * Read a value from the VPD register area. @@ -178,7 +181,7 @@ atl2_get_vpd_hwaddr(void) * use whatever the card was already set to. */ static void -atl2_get_hwaddr(void) +atl2_get_hwaddr(ether_addr_t * addr) { if (!atl2_get_vpd_hwaddr()) { @@ -188,8 +191,15 @@ atl2_get_hwaddr(void) state.hwaddr[1] = ATL2_READ_U32(ATL2_HWADDR1_REG) & 0xffff; } - ATL2_DEBUG(("ATL2: MAC address %04lx%08lx\n", + ATL2_DEBUG(("ATL2: MAC address %04x%08x\n", state.hwaddr[1], state.hwaddr[0])); + + addr->ea_addr[0] = state.hwaddr[1] >> 8; + addr->ea_addr[1] = state.hwaddr[1] & 0xff; + addr->ea_addr[2] = state.hwaddr[0] >> 24; + addr->ea_addr[3] = (state.hwaddr[0] >> 16) & 0xff; + addr->ea_addr[4] = (state.hwaddr[0] >> 8) & 0xff; + addr->ea_addr[5] = state.hwaddr[0] & 0xff; } /* @@ -260,7 +270,7 @@ atl2_alloc_dma(void) /* * Stop the device. */ -static int +static void atl2_stop(void) { uint32_t val; @@ -288,8 +298,7 @@ atl2_stop(void) micro_delay(ATL2_IDLE_DELAY); } - /* The caller will generally ignore this return value. */ - return (i < ATL2_IDLE_NTRIES); + assert(i < ATL2_IDLE_NTRIES); } /* @@ -331,18 +340,18 @@ atl2_reset(void) * settings. */ static void -atl2_set_mode(void) +atl2_mode(unsigned int mode) { uint32_t val; val = ATL2_READ_U32(ATL2_MAC_REG); val &= ~(ATL2_MAC_PROMISC_EN | ATL2_MAC_MCAST_EN | ATL2_MAC_BCAST_EN); - if (state.mode & DL_PROMISC_REQ) + if (mode & NDEV_PROMISC) val |= ATL2_MAC_PROMISC_EN; - if (state.mode & DL_MULTI_REQ) + if (mode & NDEV_MULTI) val |= ATL2_MAC_MCAST_EN; - if (state.mode & DL_BROAD_REQ) + if (mode & NDEV_BROAD) val |= ATL2_MAC_BCAST_EN; ATL2_WRITE_U32(ATL2_MAC_REG, val); @@ -409,7 +418,7 @@ atl2_setup(void) /* Reset descriptors, and enable DMA. */ state.txd_tail = state.txs_tail = state.rxd_tail = 0; state.txd_num = state.txs_num = 0; - state.flags &= ~ATL2_FLAG_RX_AVAIL; + state.rx_avail = FALSE; ATL2_WRITE_U16(ATL2_TXD_IDX_REG, 0); ATL2_WRITE_U16(ATL2_RXD_IDX_REG, 0); @@ -440,7 +449,7 @@ atl2_setup(void) ATL2_WRITE_U32(ATL2_MHT0_REG, 0xffffffff); ATL2_WRITE_U32(ATL2_MHT1_REG, 0xffffffff); - atl2_set_mode(); + atl2_mode(NDEV_NOMODE); /* Enable Tx/Rx. */ val = ATL2_READ_U32(ATL2_MAC_REG); @@ -488,18 +497,13 @@ atl2_probe(int skip) * Initialize the device. */ static void -atl2_init(int devind) +atl2_init_hw(int devind, ether_addr_t * addr) { uint32_t bar; int r, flag; /* Initialize global state. */ state.devind = devind; - state.mode = DL_NOMODE; - state.flags = 0; - state.recv_count = 0; - - memset(&state.stat, 0, sizeof(state.stat)); if ((r = pci_get_bar(devind, PCI_BAR, &bar, &state.size, &flag)) != OK) panic("unable to retrieve bar: %d", r); @@ -526,7 +530,7 @@ atl2_init(int devind) if ((r = sys_irqenable(&state.hook_id)) != OK) panic("unable to enable IRQ: %d", r); - atl2_get_hwaddr(); + atl2_get_hwaddr(addr); atl2_setup(); } @@ -605,7 +609,8 @@ atl2_tx_advance(void) assert((uint32_t)state.txd_tail <= ATL2_TXD_BUFSIZE - sizeof(uint32_t)); - dsize = *(uint32_t *)(state.txd_base + state.txd_tail); + dsize = + *(volatile uint32_t *)(state.txd_base + state.txd_tail); if (size != dsize) printf("ATL2: TxD/TxS size mismatch (%x vs %x)\n", size, dsize); @@ -643,7 +648,8 @@ atl2_rx_advance(int next) { int update_tail; rxd_t *rxd; - uint32_t hdr, size; + uint32_t hdr; + size_t size; update_tail = FALSE; @@ -653,10 +659,10 @@ atl2_rx_advance(int next) ATL2_DEBUG(("ATL2: successfully received packet\n")); - state.flags &= ~ATL2_FLAG_RX_AVAIL; + state.rx_avail = FALSE; } - assert(!(state.flags & ATL2_FLAG_RX_AVAIL)); + assert(!state.rx_avail); for (;;) { /* Check the RxD tail for updates. */ @@ -678,11 +684,12 @@ atl2_rx_advance(int next) */ size = hdr & ATL2_RXD_SIZE_MASK; - if ((hdr & ATL2_RXD_SUCCESS) && size >= ETH_MIN_PACK_SIZE) { - ATL2_DEBUG(("ATL2: packet available, size %ld\n", + if ((hdr & ATL2_RXD_SUCCESS) && + size >= ETH_MIN_PACK_SIZE + ETH_CRC_SIZE) { + ATL2_DEBUG(("ATL2: packet available, size %zu\n", size)); - state.flags |= ATL2_FLAG_RX_AVAIL; + state.rx_avail = TRUE; break; } @@ -702,220 +709,78 @@ atl2_rx_advance(int next) } /* - * Send a task reply to Inet. + * Receive a packet. */ -static void -atl2_reply(void) -{ - message m; - int r, flags; - - flags = DL_NOFLAGS; - if (state.flags & ATL2_FLAG_PACK_SENT) - flags |= DL_PACK_SEND; - if (state.flags & ATL2_FLAG_PACK_RCVD) - flags |= DL_PACK_RECV; - - m.m_type = DL_TASK_REPLY; - m.m_netdrv_net_dl_task.flags = flags; - m.m_netdrv_net_dl_task.count = state.recv_count; - - ATL2_DEBUG(("ATL2: sending reply, flags %x count %d\n", flags, - m.m_netdrv_net_dl_task.count)); - - if ((r = ipc_send(state.task_endpt, &m)) != OK) - panic("unable to reply: %d", r); - - state.flags &= ~(ATL2_FLAG_PACK_SENT | ATL2_FLAG_PACK_RCVD); - state.recv_count = 0; -} - -/* - * Read packet data. - */ -static void -atl2_readv(const message * m, int from_int) +static ssize_t +atl2_recv(struct netdriver_data * data, size_t max) { rxd_t *rxd; - iovec_s_t *iovp; - size_t count, off, left, size; - uint8_t *pos; - int i, j, r, batch; - - /* We can deal with only one read request from Inet at a time. */ - assert(from_int || !(state.flags & ATL2_FLAG_READ_PEND)); - - state.task_endpt = m->m_source; + size_t size; /* Are there any packets available at all? */ - if (!(state.flags & ATL2_FLAG_RX_AVAIL)) - goto suspend; + if (!state.rx_avail) + return SUSPEND; /* Get the first available packet's size. Cut off the CRC. */ rxd = &state.rxd_base[state.rxd_tail]; - count = rxd->hdr & ATL2_RXD_SIZE_MASK; - count -= ETH_CRC_SIZE; + size = rxd->hdr & ATL2_RXD_SIZE_MASK; + size -= ETH_CRC_SIZE; - ATL2_DEBUG(("ATL2: readv: found packet with length %d\n", count)); + ATL2_DEBUG(("ATL2: receiving packet with length %zu\n", size)); - /* Copy out the packet. */ - off = 0; - left = count; - pos = rxd->data; - - for (i = 0; i < m->m_net_netdrv_dl_readv_s.count && left > 0; - i += batch) { - /* Copy in the next batch. */ - batch = MIN(m->m_net_netdrv_dl_readv_s.count - i, NR_IOREQS); - - r = sys_safecopyfrom(m->m_source, - m->m_net_netdrv_dl_readv_s.grant, off, (vir_bytes)iovec, - batch * sizeof(iovec[0])); - if (r != OK) - panic("vector copy failed: %d", r); - - /* Copy out each element in the batch, until we run out. */ - for (j = 0, iovp = iovec; j < batch && left > 0; j++, iovp++) { - size = MIN(iovp->iov_size, left); - - r = sys_safecopyto(m->m_source, iovp->iov_grant, 0, - (vir_bytes)pos, size); - if (r != OK) - panic("safe copy failed: %d", r); - - pos += size; - left -= size; - } + /* Truncate large packets. */ + if (size > max) + size = max; - off += batch * sizeof(iovec[0]); - } - - /* Not sure what to do here. Inet shouldn't mess this up anyway. */ - if (left > 0) { - printf("ATL2: truncated packet of %d bytes by %d bytes\n", - count, left); - count -= left; - } + /* Copy out the packet. */ + netdriver_copyout(data, 0, rxd->data, size); /* We are done with this packet. Move on to the next. */ atl2_rx_advance(TRUE /*next*/); - /* We have now successfully received a packet. */ - state.flags &= ~ATL2_FLAG_READ_PEND; - state.flags |= ATL2_FLAG_PACK_RCVD; - state.recv_count = count; - - /* If called from the interrupt handler, the caller will reply. */ - if (!from_int) - atl2_reply(); - - return; - -suspend: - /* - * No packets are available at this time. If we were not already - * trying to resume receipt, save the read request for later, and tell - * Inet that the request has been suspended. - */ - if (from_int) - return; - - state.flags |= ATL2_FLAG_READ_PEND; - state.read_msg = *m; - - atl2_reply(); + return size; } /* - * Write packet data. + * Send a packet. */ -static void -atl2_writev(const message * m, int from_int) +static int +atl2_send(struct netdriver_data * data, size_t size) { - iovec_s_t *iovp; - size_t off, count, left, pos, skip; - vir_bytes size; + size_t pos, chunk; uint8_t *sizep; - int i, j, r, batch, maxnum; - - /* We can deal with only one write request from Inet at a time. */ - assert(from_int || !(state.flags & ATL2_FLAG_WRITE_PEND)); - - state.task_endpt = m->m_source; /* - * If we are already certain that the packet won't fit, bail out. - * Keep at least some space between TxD head and tail, as it is not - * clear whether the device deals well with the case that they collide. + * If the packet won't fit, bail out. Keep at least some space between + * TxD head and tail, as it is not clear whether the device deals well + * with the case that they collide. */ if (state.txs_num >= ATL2_TXS_COUNT) - goto suspend; - maxnum = ATL2_TXD_BUFSIZE - ETH_MIN_PACK_SIZE - sizeof(uint32_t); - if (state.txd_num >= maxnum) - goto suspend; + return SUSPEND; - /* - * Optimistically try to copy in the data; suspend if it turns out - * that it does not fit. - */ - off = 0; - count = 0; - left = state.txd_num - sizeof(uint32_t); + if (state.txd_num + sizeof(uint32_t) + ATL2_ALIGN_32(size) >= + ATL2_TXD_BUFSIZE) + return SUSPEND; + + /* Copy in the packet. */ pos = (state.txd_tail + state.txd_num + sizeof(uint32_t)) % ATL2_TXD_BUFSIZE; - - for (i = 0; i < m->m_net_netdrv_dl_writev_s.count; i += batch) { - /* Copy in the next batch. */ - batch = MIN(m->m_net_netdrv_dl_writev_s.count - i, NR_IOREQS); - - r = sys_safecopyfrom(m->m_source, - m->m_net_netdrv_dl_writev_s.grant, off, (vir_bytes)iovec, - batch * sizeof(iovec[0])); - if (r != OK) - panic("vector copy failed: %d", r); - - /* Copy in each element in the batch. */ - for (j = 0, iovp = iovec; j < batch; j++, iovp++) { - size = iovp->iov_size; - if (size > left) - goto suspend; - - skip = 0; - if (size > ATL2_TXD_BUFSIZE - pos) { - skip = ATL2_TXD_BUFSIZE - pos; - r = sys_safecopyfrom(m->m_source, - iovp->iov_grant, 0, - (vir_bytes)(state.txd_base + pos), skip); - if (r != OK) - panic("safe copy failed: %d", r); - pos = 0; - } - - r = sys_safecopyfrom(m->m_source, iovp->iov_grant, - skip, (vir_bytes)(state.txd_base + pos), - size - skip); - if (r != OK) - panic("safe copy failed: %d", r); - - pos = (pos + size - skip) % ATL2_TXD_BUFSIZE; - left -= size; - count += size; - } - - off += batch * sizeof(iovec[0]); - } - - assert(count <= ETH_MAX_PACK_SIZE_TAGGED); + chunk = ATL2_TXD_BUFSIZE - pos; + if (size > chunk) { + netdriver_copyin(data, 0, state.txd_base + pos, chunk); + netdriver_copyin(data, chunk, state.txd_base, size - chunk); + } else + netdriver_copyin(data, 0, state.txd_base + pos, size); /* Write the length to the DWORD right before the packet. */ sizep = state.txd_base + (state.txd_tail + state.txd_num) % ATL2_TXD_BUFSIZE; - *(uint32_t *)sizep = count; + *(volatile uint32_t *)sizep = size; /* Update the TxD head. */ - state.txd_num += sizeof(uint32_t) + ATL2_ALIGN_32(count); - pos = ATL2_ALIGN_32(pos) % ATL2_TXD_BUFSIZE; + state.txd_num += sizeof(uint32_t) + ATL2_ALIGN_32(size); + pos = ATL2_ALIGN_32(pos + size) % ATL2_TXD_BUFSIZE; assert((int)pos == (state.txd_tail + state.txd_num) % ATL2_TXD_BUFSIZE); @@ -928,66 +793,44 @@ atl2_writev(const message * m, int from_int) ATL2_WRITE_U32(ATL2_TXD_IDX_REG, pos / sizeof(uint32_t)); - /* We have now successfully set up the transmission of a packet. */ - state.flags &= ~ATL2_FLAG_WRITE_PEND; - state.flags |= ATL2_FLAG_PACK_SENT; - - /* If called from the interrupt handler, the caller will reply. */ - if (!from_int) - atl2_reply(); - - return; - -suspend: - /* - * We cannot transmit the packet at this time. If we were not already - * trying to resume transmission, save the write request for later, - * and tell Inet that the request has been suspended. - */ - if (from_int) - return; - - state.flags |= ATL2_FLAG_WRITE_PEND; - state.write_msg = *m; - - atl2_reply(); + return OK; } /* * Process an interrupt. */ static void -atl2_intr(const message * __unused m) +atl2_intr(unsigned int __unused mask) { uint32_t val; - int r, try_write, try_read; + int r, try_send, try_recv; /* Clear and disable interrupts. */ val = ATL2_READ_U32(ATL2_ISR_REG); ATL2_WRITE_U32(ATL2_ISR_REG, val | ATL2_ISR_DISABLE); - ATL2_DEBUG(("ATL2: interrupt (0x%08lx)\n", val)); + ATL2_DEBUG(("ATL2: interrupt (0x%08x)\n", val)); /* If an error occurred, reset the card. */ if (val & (ATL2_ISR_DMAR_TIMEOUT | ATL2_ISR_DMAW_TIMEOUT | ATL2_ISR_PHY_LINKDOWN)) atl2_setup(); - try_write = try_read = FALSE; + try_send = try_recv = FALSE; /* Process sent data, and possibly send pending data. */ if (val & ATL2_ISR_TX_EVENT) { if (atl2_tx_advance()) - try_write = (state.flags & ATL2_FLAG_WRITE_PEND); + try_send = TRUE; } /* Receive new data, and possible satisfy a pending receive request. */ if (val & ATL2_ISR_RX_EVENT) { - if (!(state.flags & ATL2_FLAG_RX_AVAIL)) { + if (!state.rx_avail) { atl2_rx_advance(FALSE /*next*/); - try_read = (state.flags & ATL2_FLAG_READ_PEND); + try_recv = TRUE; } } @@ -997,60 +840,21 @@ atl2_intr(const message * __unused m) if ((r = sys_irqenable(&state.hook_id)) != OK) panic("unable to enable IRQ: %d", r); - /* Attempt to satisfy pending write and read requests. */ - if (try_write) - atl2_writev(&state.write_msg, TRUE /*from_int*/); - if (try_read) - atl2_readv(&state.read_msg, TRUE /*from_int*/); - if (state.flags & (ATL2_FLAG_PACK_SENT | ATL2_FLAG_PACK_RCVD)) - atl2_reply(); -} - -/* - * Configure the mode of the card. - */ -static void -atl2_conf(message * m) -{ - ether_addr_t addr; - int r; - - state.mode = m->m_net_netdrv_dl_conf.mode; - - atl2_set_mode(); - - addr.ea_addr[0] = state.hwaddr[1] >> 8; - addr.ea_addr[1] = state.hwaddr[1] & 0xff; - addr.ea_addr[2] = state.hwaddr[0] >> 24; - addr.ea_addr[3] = (state.hwaddr[0] >> 16) & 0xff; - addr.ea_addr[4] = (state.hwaddr[0] >> 8) & 0xff; - addr.ea_addr[5] = state.hwaddr[0] & 0xff; - - memcpy(m->m_netdrv_net_dl_conf.hw_addr, &addr, - sizeof(m->m_netdrv_net_dl_conf.hw_addr)); - - m->m_type = DL_CONF_REPLY; - m->m_netdrv_net_dl_conf.stat = OK; - - if ((r = ipc_send(m->m_source, m)) != OK) - printf("ATL2: unable to send reply (%d)\n", r); + /* Attempt to satisfy pending send and receive requests. */ + if (try_send) + netdriver_send(); + if (try_recv) + netdriver_recv(); } /* * Copy out statistics. */ static void -atl2_getstat(message * m) +atl2_stat(eth_stat_t * stat) { - int r; - - sys_safecopyto(m->m_source, m->m_net_netdrv_dl_getstat_s.grant, 0, - (vir_bytes) &state.stat, sizeof(state.stat)); - m->m_type = DL_STAT_REPLY; - - if ((r = ipc_send(m->m_source, m)) != OK) - printf("ATL2: unable to send reply (%d)\n", r); + memcpy(stat, &state.stat, sizeof(*stat)); } /* @@ -1127,65 +931,70 @@ atl2_dump(void) printf("TxS tail: %8d\t", state.txs_tail); printf("TxS count: %8d\n", state.txs_num); - printf("flags: 0x%04x\t", state.flags); atl2_dump_link(); printf("\n"); } +/* + * Process miscellaneous messages. + */ +static void +atl2_other(const message * m_ptr, int ipc_status) +{ +#if ATL2_FKEY + int sfkeys; + + if (!is_ipc_notify(ipc_status) || m_ptr->m_source != TTY_PROC_NR) + return; + + if (fkey_events(NULL, &sfkeys) == OK && bit_isset(sfkeys, ATL2_FKEY)) + atl2_dump(); +#endif +} + /* * Initialize the atl2 driver. */ static int -sef_cb_init_fresh(int __unused type, sef_init_info_t * __unused info) +atl2_init(unsigned int instance, ether_addr_t * addr) { - int r, devind, instance; - long v; + int devind; #if ATL2_FKEY - int fkeys, sfkeys; + int r, fkeys, sfkeys; #endif - /* How many matching devices should we skip? */ - v = 0; - (void)env_parse("instance", "d", 0, &v, 0, 255); - instance = (int)v; + memset(&state, 0, sizeof(state)); /* Try to find a recognized device. */ devind = atl2_probe(instance); if (devind < 0) - panic("no matching device found"); + return ENXIO; /* Initialize the device. */ - atl2_init(devind); - - /* Announce we are up! */ - netdriver_announce(); + atl2_init_hw(devind, addr); #if ATL2_FKEY /* Register debug dump function key. */ fkeys = sfkeys = 0; - bit_set(sfkeys, 11); + bit_set(sfkeys, ATL2_FKEY); if ((r = fkey_map(&fkeys, &sfkeys)) != OK) - printf("ATL2: warning, could not map Shift+F11 key (%d)\n", r); + printf("ATL2: warning, could not map Shift+F%u key (%d)\n", + r, ATL2_FKEY); #endif return OK; } +#if 0 /* - * In case of a termination signal, shut down this driver. Stop the device, - * and deallocate resources as proof of concept. + * Deallocate resources as proof of concept. Currently unused. */ static void -sef_cb_signal_handler(int signo) +atl2_cleanup(void) { int r; - /* Only check for termination signal, ignore anything else. */ - if (signo != SIGTERM) return; - - atl2_stop(); - if ((r = sys_irqrmpolicy(&state.hook_id)) != OK) panic("unable to deregister IRQ: %d", r); @@ -1197,32 +1006,8 @@ sef_cb_signal_handler(int signo) vm_unmap_phys(SELF, (void *)state.base, state.size); /* We cannot free the PCI device at this time. */ - - exit(0); -} - -/* - * Perform SEF initialization. - */ -static void -sef_local_startup(void) -{ - - /* Register init callbacks. */ - sef_setcb_init_fresh(sef_cb_init_fresh); - sef_setcb_init_lu(sef_cb_init_fresh); - sef_setcb_init_restart(sef_cb_init_fresh); - - /* Register live update callbacks. */ - sef_setcb_lu_prepare(sef_cb_lu_prepare_always_ready); - sef_setcb_lu_state_isvalid(sef_cb_lu_state_isvalid_workfree); - - /* Register signal callbacks. */ - sef_setcb_signal_handler(sef_cb_signal_handler); - - /* Let SEF perform startup. */ - sef_startup(); } +#endif /* * The ATL2 ethernet driver. @@ -1230,47 +1015,10 @@ sef_local_startup(void) int main(int argc, char ** argv) { - message m; - int ipc_status; - int r; - /* Initialize SEF. */ env_setargs(argc, argv); - sef_local_startup(); - - for (;;) { - if ((r = netdriver_receive(ANY, &m, &ipc_status)) != OK) - panic("netdriver_receive failed: %d", r); - - if (is_ipc_notify(ipc_status)) { - switch (m.m_source) { - case HARDWARE: /* interrupt */ - atl2_intr(&m); - - break; - case TTY_PROC_NR: /* function key */ - atl2_dump(); + netdriver_task(&atl2_table); - break; - - default: - printf("ATL2: illegal notify from %d\n", - m.m_source); - } - - continue; - } - - /* Process requests from Inet. */ - switch (m.m_type) { - case DL_CONF: atl2_conf(&m); break; - case DL_GETSTAT_S: atl2_getstat(&m); break; - case DL_WRITEV_S: atl2_writev(&m, FALSE); break; - case DL_READV_S: atl2_readv(&m, FALSE); break; - default: - printf("ATL2: illegal message %d from %d\n", - m.m_type, m.m_source); - } - } + return EXIT_SUCCESS; } -- 2.44.0