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-rw-r--r--src/ipcpd/shim-eth-llc/main.c214
1 files changed, 11 insertions, 203 deletions
diff --git a/src/ipcpd/shim-eth-llc/main.c b/src/ipcpd/shim-eth-llc/main.c
index 651429e6..997d22a1 100644
--- a/src/ipcpd/shim-eth-llc/main.c
+++ b/src/ipcpd/shim-eth-llc/main.c
@@ -103,12 +103,6 @@ struct {
int s_fd;
struct bmp * saps;
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- uint8_t * rx_ring;
- uint8_t * tx_ring;
- int tx_offset;
- pthread_mutex_t tx_lock;
-#endif
flow_set_t * np1_flows;
fqueue_t * fq;
int * ef_to_fd;
@@ -179,17 +173,8 @@ static int eth_llc_data_init(void)
if (pthread_cond_init(&eth_llc_data.mgmt_frame_cond, NULL))
goto mgmt_frame_lock_destroy;
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- if (pthread_mutex_init(&eth_llc_data.tx_lock, NULL))
- goto mgmt_frame_cond_destroy;
-#endif
-
return 0;
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- mgmt_frame_cond_destroy:
- pthread_cond_destroy(&eth_llc_data.mgmt_frame_cond);
-#endif
mgmt_frame_lock_destroy:
pthread_mutex_destroy(&eth_llc_data.mgmt_frame_lock);
flow_lock_destroy:
@@ -210,9 +195,6 @@ static int eth_llc_data_init(void)
void eth_llc_data_fini(void)
{
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- pthread_mutex_destroy(&eth_llc_data.tx_lock);
-#endif
pthread_cond_destroy(&eth_llc_data.mgmt_frame_cond);
pthread_mutex_destroy(&eth_llc_data.mgmt_frame_lock);
pthread_rwlock_destroy(&eth_llc_data.flows_lock);
@@ -241,13 +223,7 @@ static int eth_llc_ipcp_send_frame(uint8_t * dst_addr,
uint32_t frame_len = 0;
uint8_t cf = 0x03;
uint16_t length;
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- struct pollfd pfd;
- struct tpacket_hdr * header;
- uint8_t * frame;
-#else
uint8_t frame[SHIM_ETH_LLC_MAX_SDU_SIZE];
-#endif
struct eth_llc_frame * llc_frame;
if (payload == NULL) {
@@ -258,37 +234,6 @@ static int eth_llc_ipcp_send_frame(uint8_t * dst_addr,
if (len > SHIM_ETH_LLC_MAX_SDU_SIZE)
return -1;
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- header = (void *) (eth_llc_data.tx_ring +
- eth_llc_data.tx_offset * SHM_RDRB_BLOCK_SIZE);
-
- while (header->tp_status != TP_STATUS_AVAILABLE) {
- pfd.fd = eth_llc_data.s_fd;
- pfd.revents = 0;
- pfd.events = POLLIN | POLLRDNORM | POLLERR;
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-
- if (poll(&pfd, 1, -1) <= 0) {
- log_err("Failed to poll.");
- pthread_mutex_lock(&eth_llc_data.tx_lock);
- continue;
- }
-
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- header = (void *) (eth_llc_data.tx_ring
- + eth_llc_data.tx_offset
- * SHM_RDRB_BLOCK_SIZE);
- }
-
- frame = (uint8_t *) header
- + TPACKET_HDRLEN - sizeof(struct sockaddr_ll);
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-#endif
llc_frame = (struct eth_llc_frame *) frame;
memcpy(llc_frame->dst_hwaddr, dst_addr, MAC_SIZE);
@@ -309,23 +254,6 @@ static int eth_llc_ipcp_send_frame(uint8_t * dst_addr,
frame_len = ETH_HEADER_SIZE + LLC_HEADER_SIZE + len;
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- header->tp_len = frame_len;
- header->tp_status = TP_STATUS_SEND_REQUEST;
-
- if (send(eth_llc_data.s_fd, NULL, 0, MSG_DONTWAIT) < 0) {
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
- log_err("Failed to write frame into TX_RING.");
- return -1;
- }
-
- eth_llc_data.tx_offset =
- (eth_llc_data.tx_offset + 1) & ((SHM_BUFFER_SIZE) - 1);
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-#else
if (sendto(eth_llc_data.s_fd,
frame,
frame_len,
@@ -335,7 +263,7 @@ static int eth_llc_ipcp_send_frame(uint8_t * dst_addr,
log_err("Failed to send message.");
return -1;
}
-#endif
+
return 0;
}
@@ -571,20 +499,13 @@ static void * eth_llc_ipcp_mgmt_frame_handler(void * o)
static void * eth_llc_ipcp_sdu_reader(void * o)
{
- uint8_t br_addr[MAC_SIZE];
- uint16_t length;
- uint8_t dsap;
- uint8_t ssap;
- int fd;
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- struct pollfd pfd;
- int offset = 0;
- struct tpacket_hdr * header;
- uint8_t * buf = NULL;
-#else
- uint8_t buf[ETH_FRAME_SIZE];
- int frame_len = 0;
-#endif
+ uint8_t br_addr[MAC_SIZE];
+ uint16_t length;
+ uint8_t dsap;
+ uint8_t ssap;
+ int fd;
+ uint8_t buf[ETH_FRAME_SIZE];
+ int frame_len = 0;
struct eth_llc_frame * llc_frame;
(void) o;
@@ -592,42 +513,13 @@ static void * eth_llc_ipcp_sdu_reader(void * o)
memset(br_addr, 0xff, MAC_SIZE * sizeof(uint8_t));
while (true) {
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- header = (void *) (eth_llc_data.rx_ring +
- offset * SHM_RDRB_BLOCK_SIZE);
-
- while (!(header->tp_status & TP_STATUS_USER)) {
- pfd.fd = eth_llc_data.s_fd;
- pfd.revents = 0;
- pfd.events = POLLIN | POLLRDNORM | POLLERR;
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-
- if (poll(&pfd, 1, -1) <= 0) {
- log_err("Failed to poll.");
- pthread_mutex_lock(&eth_llc_data.tx_lock);
- continue;
- }
-
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- header = (void *) (eth_llc_data.rx_ring +
- offset * SHM_RDRB_BLOCK_SIZE);
- }
-
- buf = (uint8_t * ) header + header->tp_mac;
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-#else
frame_len = recv(eth_llc_data.s_fd, buf,
SHIM_ETH_LLC_MAX_SDU_SIZE, 0);
if (frame_len < 0) {
log_err("Failed to receive frame.");
continue;
}
-#endif
+
llc_frame = (struct eth_llc_frame *) buf;
#ifdef __FreeBSD__
@@ -637,28 +529,15 @@ static void * eth_llc_ipcp_sdu_reader(void * o)
#endif
llc_frame->dst_hwaddr,
MAC_SIZE) &&
- memcmp(br_addr, llc_frame->dst_hwaddr, MAC_SIZE)) {
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- offset = (offset + 1) & ((SHM_BUFFER_SIZE) - 1);
- header->tp_status = TP_STATUS_KERNEL;
-#endif
+ memcmp(br_addr, llc_frame->dst_hwaddr, MAC_SIZE)) {
continue;
}
memcpy(&length, &llc_frame->length, sizeof(length));
length = ntohs(length);
- if (length > 0x05FF) { /* DIX */
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- offset = (offset + 1) & ((SHM_BUFFER_SIZE) -1);
- header->tp_status = TP_STATUS_KERNEL;
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-#endif
+ if (length > 0x05FF) /* DIX */
continue;
- }
length -= LLC_HEADER_SIZE;
@@ -683,14 +562,6 @@ static void * eth_llc_ipcp_sdu_reader(void * o)
fd = eth_llc_data.ef_to_fd[dsap];
if (fd < 0) {
pthread_rwlock_unlock(&eth_llc_data.flows_lock);
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- offset = (offset + 1) & ((SHM_BUFFER_SIZE) - 1);
- header->tp_status = TP_STATUS_KERNEL;
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-#endif
continue;
}
@@ -698,14 +569,6 @@ static void * eth_llc_ipcp_sdu_reader(void * o)
|| memcmp(eth_llc_data.fd_to_ef[fd].r_addr,
llc_frame->src_hwaddr, MAC_SIZE)) {
pthread_rwlock_unlock(&eth_llc_data.flows_lock);
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- offset = (offset + 1) & ((SHM_BUFFER_SIZE) -1);
- header->tp_status = TP_STATUS_KERNEL;
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-#endif
continue;
}
@@ -713,14 +576,6 @@ static void * eth_llc_ipcp_sdu_reader(void * o)
flow_write(fd, &llc_frame->payload, length);
}
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- pthread_mutex_lock(&eth_llc_data.tx_lock);
-
- offset = (offset + 1) & ((SHM_BUFFER_SIZE) - 1);
- header->tp_status = TP_STATUS_KERNEL;
-
- pthread_mutex_unlock(&eth_llc_data.tx_lock);
-#endif
}
return (void *) 0;
@@ -815,10 +670,6 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf)
struct sockaddr_ll device;
#endif
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- struct tpacket_req req;
-#endif
-
assert(conf);
assert(conf->type == THIS_TYPE);
@@ -896,52 +747,12 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf)
return -1;
}
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- if (SHIM_ETH_LLC_MAX_SDU_SIZE > SHM_RDRB_BLOCK_SIZE) {
- log_err("Max SDU size is bigger than DU map block size.");
- close(skfd);
- return -1;
- }
-
- req.tp_block_size = SHM_RDRB_BLOCK_SIZE;
- req.tp_frame_size = SHM_RDRB_BLOCK_SIZE;
- req.tp_block_nr = SHM_BUFFER_SIZE;
- req.tp_frame_nr = SHM_BUFFER_SIZE;
-
- if (setsockopt(skfd, SOL_PACKET, PACKET_RX_RING,
- (void *) &req, sizeof(req))) {
- log_err("Failed to set sockopt PACKET_RX_RING");
- close(skfd);
- return -1;
- }
-
- if (setsockopt(skfd, SOL_PACKET, PACKET_TX_RING,
- (void *) &req, sizeof(req))) {
- log_err("Failed to set sockopt PACKET_TX_RING");
- close(skfd);
- return -1;
- }
-#endif
if (bind(skfd, (struct sockaddr *) &device, sizeof(device))) {
log_err("Failed to bind socket to interface");
close(skfd);
return -1;
}
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- eth_llc_data.rx_ring = mmap(NULL, 2 * SHM_RDRB_BLOCK_SIZE
- * (SHM_BUFFER_SIZE),
- PROT_READ | PROT_WRITE, MAP_SHARED,
- skfd, 0);
- if (eth_llc_data.rx_ring == NULL) {
- log_err("Failed to mmap");
- close(skfd);
- return -1;
- }
-
- eth_llc_data.tx_ring = eth_llc_data.rx_ring
- + SHM_RDRB_BLOCK_SIZE * (SHM_BUFFER_SIZE);
-#endif
pthread_rwlock_wrlock(&ipcpi.state_lock);
if (ipcp_get_state() != IPCP_INIT) {
@@ -952,9 +763,6 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf)
eth_llc_data.s_fd = skfd;
eth_llc_data.device = device;
-#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
- eth_llc_data.tx_offset = 0;
-#endif
ipcp_set_state(IPCP_OPERATIONAL);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 06:23:36 +0000