aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--net/core/pktgen.c92
1 files changed, 44 insertions, 48 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index fda403419ff2..74194afb9540 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -210,7 +210,7 @@ struct pktgen_dev {
210 char result[512]; 210 char result[512];
211 211
212 struct pktgen_thread *pg_thread; /* the owner */ 212 struct pktgen_thread *pg_thread; /* the owner */
213 struct pktgen_dev *next; /* Used for chaining in the thread's run-queue */ 213 struct list_head list; /* Used for chaining in the thread's run-queue */
214 214
215 int running; /* if this changes to false, the test will stop */ 215 int running; /* if this changes to false, the test will stop */
216 216
@@ -330,7 +330,7 @@ struct pktgen_hdr {
330 330
331struct pktgen_thread { 331struct pktgen_thread {
332 spinlock_t if_lock; 332 spinlock_t if_lock;
333 struct pktgen_dev *if_list; /* All device here */ 333 struct list_head if_list; /* All device here */
334 struct list_head th_list; 334 struct list_head th_list;
335 int removed; 335 int removed;
336 char name[32]; 336 char name[32];
@@ -1378,7 +1378,7 @@ static struct file_operations pktgen_if_fops = {
1378static int pktgen_thread_show(struct seq_file *seq, void *v) 1378static int pktgen_thread_show(struct seq_file *seq, void *v)
1379{ 1379{
1380 struct pktgen_thread *t = seq->private; 1380 struct pktgen_thread *t = seq->private;
1381 struct pktgen_dev *pkt_dev = NULL; 1381 struct pktgen_dev *pkt_dev;
1382 1382
1383 BUG_ON(!t); 1383 BUG_ON(!t);
1384 1384
@@ -1388,13 +1388,13 @@ static int pktgen_thread_show(struct seq_file *seq, void *v)
1388 seq_printf(seq, "Running: "); 1388 seq_printf(seq, "Running: ");
1389 1389
1390 if_lock(t); 1390 if_lock(t);
1391 for (pkt_dev = t->if_list; pkt_dev; pkt_dev = pkt_dev->next) 1391 list_for_each_entry(pkt_dev, &t->if_list, list)
1392 if (pkt_dev->running) 1392 if (pkt_dev->running)
1393 seq_printf(seq, "%s ", pkt_dev->ifname); 1393 seq_printf(seq, "%s ", pkt_dev->ifname);
1394 1394
1395 seq_printf(seq, "\nStopped: "); 1395 seq_printf(seq, "\nStopped: ");
1396 1396
1397 for (pkt_dev = t->if_list; pkt_dev; pkt_dev = pkt_dev->next) 1397 list_for_each_entry(pkt_dev, &t->if_list, list)
1398 if (!pkt_dev->running) 1398 if (!pkt_dev->running)
1399 seq_printf(seq, "%s ", pkt_dev->ifname); 1399 seq_printf(seq, "%s ", pkt_dev->ifname);
1400 1400
@@ -2421,13 +2421,13 @@ static void pktgen_clear_counters(struct pktgen_dev *pkt_dev)
2421 2421
2422static void pktgen_run(struct pktgen_thread *t) 2422static void pktgen_run(struct pktgen_thread *t)
2423{ 2423{
2424 struct pktgen_dev *pkt_dev = NULL; 2424 struct pktgen_dev *pkt_dev;
2425 int started = 0; 2425 int started = 0;
2426 2426
2427 PG_DEBUG(printk("pktgen: entering pktgen_run. %p\n", t)); 2427 PG_DEBUG(printk("pktgen: entering pktgen_run. %p\n", t));
2428 2428
2429 if_lock(t); 2429 if_lock(t);
2430 for (pkt_dev = t->if_list; pkt_dev; pkt_dev = pkt_dev->next) { 2430 list_for_each_entry(pkt_dev, &t->if_list, list) {
2431 2431
2432 /* 2432 /*
2433 * setup odev and create initial packet. 2433 * setup odev and create initial packet.
@@ -2468,15 +2468,14 @@ static void pktgen_stop_all_threads_ifs(void)
2468 2468
2469static int thread_is_running(struct pktgen_thread *t) 2469static int thread_is_running(struct pktgen_thread *t)
2470{ 2470{
2471 struct pktgen_dev *next; 2471 struct pktgen_dev *pkt_dev;
2472 int res = 0; 2472 int res = 0;
2473 2473
2474 for (next = t->if_list; next; next = next->next) { 2474 list_for_each_entry(pkt_dev, &t->if_list, list)
2475 if (next->running) { 2475 if (pkt_dev->running) {
2476 res = 1; 2476 res = 1;
2477 break; 2477 break;
2478 } 2478 }
2479 }
2480 return res; 2479 return res;
2481} 2480}
2482 2481
@@ -2597,17 +2596,17 @@ static int pktgen_stop_device(struct pktgen_dev *pkt_dev)
2597 2596
2598static struct pktgen_dev *next_to_run(struct pktgen_thread *t) 2597static struct pktgen_dev *next_to_run(struct pktgen_thread *t)
2599{ 2598{
2600 struct pktgen_dev *next, *best = NULL; 2599 struct pktgen_dev *pkt_dev, *best = NULL;
2601 2600
2602 if_lock(t); 2601 if_lock(t);
2603 2602
2604 for (next = t->if_list; next; next = next->next) { 2603 list_for_each_entry(pkt_dev, &t->if_list, list) {
2605 if (!next->running) 2604 if (!pkt_dev->running)
2606 continue; 2605 continue;
2607 if (best == NULL) 2606 if (best == NULL)
2608 best = next; 2607 best = pkt_dev;
2609 else if (next->next_tx_us < best->next_tx_us) 2608 else if (pkt_dev->next_tx_us < best->next_tx_us)
2610 best = next; 2609 best = pkt_dev;
2611 } 2610 }
2612 if_unlock(t); 2611 if_unlock(t);
2613 return best; 2612 return best;
@@ -2615,18 +2614,18 @@ static struct pktgen_dev *next_to_run(struct pktgen_thread *t)
2615 2614
2616static void pktgen_stop(struct pktgen_thread *t) 2615static void pktgen_stop(struct pktgen_thread *t)
2617{ 2616{
2618 struct pktgen_dev *next = NULL; 2617 struct pktgen_dev *pkt_dev;
2619 2618
2620 PG_DEBUG(printk("pktgen: entering pktgen_stop\n")); 2619 PG_DEBUG(printk("pktgen: entering pktgen_stop\n"));
2621 2620
2622 if_lock(t); 2621 if_lock(t);
2623 2622
2624 for (next = t->if_list; next; next = next->next) { 2623 list_for_each_entry(pkt_dev, &t->if_list, list) {
2625 pktgen_stop_device(next); 2624 pktgen_stop_device(pkt_dev);
2626 if (next->skb) 2625 if (pkt_dev->skb)
2627 kfree_skb(next->skb); 2626 kfree_skb(pkt_dev->skb);
2628 2627
2629 next->skb = NULL; 2628 pkt_dev->skb = NULL;
2630 } 2629 }
2631 2630
2632 if_unlock(t); 2631 if_unlock(t);
@@ -2638,14 +2637,15 @@ static void pktgen_stop(struct pktgen_thread *t)
2638 */ 2637 */
2639static void pktgen_rem_one_if(struct pktgen_thread *t) 2638static void pktgen_rem_one_if(struct pktgen_thread *t)
2640{ 2639{
2641 struct pktgen_dev *cur, *next = NULL; 2640 struct list_head *q, *n;
2641 struct pktgen_dev *cur;
2642 2642
2643 PG_DEBUG(printk("pktgen: entering pktgen_rem_one_if\n")); 2643 PG_DEBUG(printk("pktgen: entering pktgen_rem_one_if\n"));
2644 2644
2645 if_lock(t); 2645 if_lock(t);
2646 2646
2647 for (cur = t->if_list; cur; cur = next) { 2647 list_for_each_safe(q, n, &t->if_list) {
2648 next = cur->next; 2648 cur = list_entry(q, struct pktgen_dev, list);
2649 2649
2650 if (!cur->removal_mark) 2650 if (!cur->removal_mark)
2651 continue; 2651 continue;
@@ -2664,15 +2664,16 @@ static void pktgen_rem_one_if(struct pktgen_thread *t)
2664 2664
2665static void pktgen_rem_all_ifs(struct pktgen_thread *t) 2665static void pktgen_rem_all_ifs(struct pktgen_thread *t)
2666{ 2666{
2667 struct pktgen_dev *cur, *next = NULL; 2667 struct list_head *q, *n;
2668 struct pktgen_dev *cur;
2668 2669
2669 /* Remove all devices, free mem */ 2670 /* Remove all devices, free mem */
2670 2671
2671 PG_DEBUG(printk("pktgen: entering pktgen_rem_all_ifs\n")); 2672 PG_DEBUG(printk("pktgen: entering pktgen_rem_all_ifs\n"));
2672 if_lock(t); 2673 if_lock(t);
2673 2674
2674 for (cur = t->if_list; cur; cur = next) { 2675 list_for_each_safe(q, n, &t->if_list) {
2675 next = cur->next; 2676 cur = list_entry(q, struct pktgen_dev, list);
2676 2677
2677 if (cur->skb) 2678 if (cur->skb)
2678 kfree_skb(cur->skb); 2679 kfree_skb(cur->skb);
@@ -2959,14 +2960,14 @@ static void pktgen_thread_worker(struct pktgen_thread *t)
2959static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, 2960static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t,
2960 const char *ifname) 2961 const char *ifname)
2961{ 2962{
2962 struct pktgen_dev *pkt_dev = NULL; 2963 struct pktgen_dev *p, *pkt_dev = NULL;
2963 if_lock(t); 2964 if_lock(t);
2964 2965
2965 for (pkt_dev = t->if_list; pkt_dev; pkt_dev = pkt_dev->next) { 2966 list_for_each_entry(p, &t->if_list, list)
2966 if (strncmp(pkt_dev->ifname, ifname, IFNAMSIZ) == 0) { 2967 if (strncmp(p->ifname, ifname, IFNAMSIZ) == 0) {
2968 pkt_dev = p;
2967 break; 2969 break;
2968 } 2970 }
2969 }
2970 2971
2971 if_unlock(t); 2972 if_unlock(t);
2972 PG_DEBUG(printk("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev)); 2973 PG_DEBUG(printk("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev));
@@ -2989,8 +2990,8 @@ static int add_dev_to_thread(struct pktgen_thread *t,
2989 rv = -EBUSY; 2990 rv = -EBUSY;
2990 goto out; 2991 goto out;
2991 } 2992 }
2992 pkt_dev->next = t->if_list; 2993
2993 t->if_list = pkt_dev; 2994 list_add(&pkt_dev->list, &t->if_list);
2994 pkt_dev->pg_thread = t; 2995 pkt_dev->pg_thread = t;
2995 pkt_dev->running = 0; 2996 pkt_dev->running = 0;
2996 2997
@@ -3117,6 +3118,8 @@ static int __init pktgen_create_thread(const char *name, int cpu)
3117 pe->proc_fops = &pktgen_thread_fops; 3118 pe->proc_fops = &pktgen_thread_fops;
3118 pe->data = t; 3119 pe->data = t;
3119 3120
3121 INIT_LIST_HEAD(&t->if_list);
3122
3120 list_add_tail(&t->th_list, &pktgen_threads); 3123 list_add_tail(&t->th_list, &pktgen_threads);
3121 3124
3122 t->removed = 0; 3125 t->removed = 0;
@@ -3140,20 +3143,13 @@ static int __init pktgen_create_thread(const char *name, int cpu)
3140static void _rem_dev_from_if_list(struct pktgen_thread *t, 3143static void _rem_dev_from_if_list(struct pktgen_thread *t,
3141 struct pktgen_dev *pkt_dev) 3144 struct pktgen_dev *pkt_dev)
3142{ 3145{
3143 struct pktgen_dev *i, *prev = NULL; 3146 struct list_head *q, *n;
3144 3147 struct pktgen_dev *p;
3145 i = t->if_list;
3146 3148
3147 while (i) { 3149 list_for_each_safe(q, n, &t->if_list) {
3148 if (i == pkt_dev) { 3150 p = list_entry(q, struct pktgen_dev, list);
3149 if (prev) 3151 if (p == pkt_dev)
3150 prev->next = i->next; 3152 list_del(&p->list);
3151 else
3152 t->if_list = NULL;
3153 break;
3154 }
3155 prev = i;
3156 i = i->next;
3157 } 3153 }
3158} 3154}
3159 3155