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-rw-r--r--cli.c77
1 files changed, 66 insertions, 11 deletions
diff --git a/cli.c b/cli.c
index 7ac4a09..ea8325c 100644
--- a/cli.c
+++ b/cli.c
@@ -60,6 +60,7 @@ typedef enum {
MODE_STOP_DMA,
MODE_WAIT_IRQ,
MODE_LIST_KMEM,
+ MODE_READ_KMEM,
MODE_FREE_KMEM
} MODE;
@@ -79,8 +80,8 @@ typedef enum {
OPT_OUTPUT = 'o',
OPT_TIMEOUT = 't',
OPT_INFO = 'i',
- OPT_BENCHMARK = 'p',
OPT_LIST = 'l',
+ OPT_BENCHMARK = 'p',
OPT_READ = 'r',
OPT_WRITE = 'w',
OPT_GRAB = 'g',
@@ -92,6 +93,7 @@ typedef enum {
OPT_ITERATIONS,
OPT_LIST_KMEM,
OPT_FREE_KMEM,
+ OPT_READ_KMEM,
OPT_FORCE,
OPT_HELP = 'h',
} OPTIONS;
@@ -117,6 +119,7 @@ static struct option long_options[] = {
{"stop-dma", optional_argument, 0, OPT_STOP_DMA },
{"wait-irq", optional_argument, 0, OPT_WAIT_IRQ },
{"list-kernel-memory", no_argument, 0, OPT_LIST_KMEM },
+ {"read-kernel-memory", required_argument, 0, OPT_READ_KMEM },
{"free-kernel-memory", required_argument, 0, OPT_FREE_KMEM },
{"quiete", no_argument, 0, OPT_QUIETE },
{"force", no_argument, 0, OPT_FORCE },
@@ -159,6 +162,8 @@ void Usage(int argc, char *argv[], const char *format, ...) {
"\n"
" Kernel Modes:\n"
" --list-kernel-memory - List kernel buffers\n"
+" --read-kernel-memory <blk> - Read the specified block of the kernel memory,\n"
+" block is specified as: use:block_number\n"
" --free-kernel-memory <use> - Cleans lost kernel space buffers (DANGEROUS)\n"
" dma - Remove all buffers allocated by DMA subsystem\n"
" #number - Remove all buffers with the specified use id\n"
@@ -1085,7 +1090,7 @@ int ListKMEM(pcilib_t *handle, const char *device) {
return 0;
}
- printf("Use Type Count Total Size REF Mode \n");
+ printf("Use Type Count Total Size REF Mode \n");
printf("--------------------------------------------------------------------------------\n");
for (useid = 0; useid < n_uses; useid++) {
if (useid + 1 == n_uses) {
@@ -1093,20 +1098,21 @@ int ListKMEM(pcilib_t *handle, const char *device) {
i = 0;
} else i = useid + 1;
- if (!i) printf("0x%08lx Others", 0);
- else if ((uses[i].use >> 16) == PCILIB_KMEM_USE_DMA_RING) printf("DMA%u %s Ring ", uses[i].use&0x7F, ((uses[i].use&0x80)?"C2S":"S2C"));
- else if ((uses[i].use >> 16) == PCILIB_KMEM_USE_DMA_PAGES) printf("DMA%u %s Pages ", uses[i].use&0x7F, ((uses[i].use&0x80)?"C2S":"S2C"));
- else printf("0x%08lx ", uses[i].use);
- printf(" ");
- printf("% 9lu", uses[i].count);
+ printf("%08lx ", uses[i].use);
+ if (!i) printf("All Others ");
+ else if ((uses[i].use >> 16) == PCILIB_KMEM_USE_DMA_RING) printf("DMA%u %s Ring ", uses[i].use&0x7F, ((uses[i].use&0x80)?"S2C":"C2S"));
+ else if ((uses[i].use >> 16) == PCILIB_KMEM_USE_DMA_PAGES) printf("DMA%u %s Pages ", uses[i].use&0x7F, ((uses[i].use&0x80)?"S2C":"C2S"));
+ else printf (" ", uses[i].use);
+ printf(" ");
+ printf("% 6lu", uses[i].count);
printf(" ");
- printf("% 12s", PrintSize(stmp, uses[i].size));
- printf(" ");
+ printf("% 10s", PrintSize(stmp, uses[i].size));
+ printf(" ");
if (uses[i].referenced&&uses[i].hw_lock) printf("HW+SW");
else if (uses[i].referenced) printf(" SW");
else if (uses[i].hw_lock) printf("HW ");
else printf(" - ");
- printf(" ");
+ printf(" ");
if (uses[i].persistent) printf("Persistent");
else if (uses[i].open) printf("Open ");
else if (uses[i].reusable) printf("Reusable ");
@@ -1120,6 +1126,28 @@ int ListKMEM(pcilib_t *handle, const char *device) {
return 0;
}
+int ReadKMEM(pcilib_t *handle, const char *device, pcilib_kmem_use_t use, size_t block, FILE *o) {
+ void *data;
+ size_t size;
+ pcilib_kmem_handle_t *kbuf;
+
+ kbuf = pcilib_alloc_kernel_memory(handle, 0, block + 1, 0, 0, use, PCILIB_KMEM_FLAG_REUSE|PCILIB_KMEM_FLAG_TRY);
+ if (!kbuf) {
+ printf("The specified kernel buffer is not allocated\n");
+ return 0;
+ }
+
+ data = pcilib_kmem_get_block_ua(handle, kbuf, block);
+ if (data) {
+ size = pcilib_kmem_get_block_size(handle, kbuf, block);
+ fwrite(data, 1, size, o?o:stdout);
+ } else {
+ printf("The specified block is not existing\n");
+ }
+
+ pcilib_free_kernel_memory(handle, kbuf, KMEM_FLAG_REUSE);
+}
+
int FreeKMEM(pcilib_t *handle, const char *device, const char *use, int force) {
int err;
int i;
@@ -1172,6 +1200,7 @@ int WaitIRQ(pcilib_t *handle, pcilib_model_description_t *model_info, pcilib_irq
int main(int argc, char **argv) {
int i;
long itmp;
+ unsigned long utmp;
unsigned char c;
const char *num_offset;
@@ -1194,6 +1223,8 @@ int main(int argc, char **argv) {
const char *event = NULL;
const char *dma_channel = NULL;
const char *use = NULL;
+ pcilib_kmem_use_t use_id;
+ size_t block = 0;
pcilib_irq_hw_source_t irq_source;
pcilib_dma_direction_t dma_direction = PCILIB_DMA_BIDIRECTIONAL;
@@ -1294,6 +1325,27 @@ int main(int argc, char **argv) {
if (mode != MODE_INVALID) Usage(argc, argv, "Multiple operations are not supported");
mode = MODE_LIST_KMEM;
break;
+ case OPT_READ_KMEM:
+ if (mode != MODE_INVALID) Usage(argc, argv, "Multiple operations are not supported");
+ mode = MODE_READ_KMEM;
+
+ num_offset = strchr(optarg, ':');
+
+ if (num_offset) {
+ if (sscanf(num_offset + 1, "%zu", &block) != 1)
+ Usage(argc, argv, "Invalid block number is specified (%s)", num_offset + 1);
+
+ *(char*)num_offset = 0;
+ }
+
+ if (sscanf(optarg, "%lx", &utmp) != 1)
+ Usage(argc, argv, "Invalid USE number is specified (%s)", optarg);
+
+ if (!utmp)
+ Usage(argc, argv, "Can't read buffer with the unspecific use (use number is 0)");
+
+ use_id = utmp;
+ break;
case OPT_FREE_KMEM:
if (mode != MODE_INVALID) Usage(argc, argv, "Multiple operations are not supported");
mode = MODE_FREE_KMEM;
@@ -1570,6 +1622,9 @@ int main(int argc, char **argv) {
case MODE_LIST_KMEM:
ListKMEM(handle, fpga_device);
break;
+ case MODE_READ_KMEM:
+ ReadKMEM(handle, fpga_device, use_id, block, ofile);
+ break;
case MODE_FREE_KMEM:
FreeKMEM(handle, fpga_device, use, force);
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-19 06:37:21 +0000