@@ -32,13 +32,45 @@
*/
#include <linux/ethtool.h>
+#include <linux/vmalloc.h>
#include "nfp_main.h"
+#include "nfpcore/nfp.h"
+#include "nfpcore/nfp_nffw.h"
+
+#define NFP_DUMP_SPEC_RTSYM "_abi_dump_spec"
struct nfp_dumpspec *
nfp_net_dump_load_dumpspec(struct nfp_cpp *cpp, struct nfp_rtsym_table *rtbl)
{
- return NULL;
+ const struct nfp_rtsym *specsym;
+ struct nfp_dumpspec *dumpspec;
+ int bytes_read;
+ u32 cpp_id;
+
+ specsym = nfp_rtsym_lookup(rtbl, NFP_DUMP_SPEC_RTSYM);
+ if (!specsym)
+ return NULL;
+
+ /* expected size of this buffer is in the order of tens of kilobytes */
+ dumpspec = vmalloc(sizeof(*dumpspec) + specsym->size);
+ if (!dumpspec)
+ return NULL;
+
+ dumpspec->size = specsym->size;
+
+ cpp_id = NFP_CPP_ISLAND_ID(specsym->target, NFP_CPP_ACTION_RW, 0,
+ specsym->domain);
+
+ bytes_read = nfp_cpp_read(cpp, cpp_id, specsym->addr, dumpspec->data,
+ specsym->size);
+ if (bytes_read != specsym->size) {
+ vfree(dumpspec);
+ nfp_warn(cpp, "Debug dump specification read failed.\n");
+ return NULL;
+ }
+
+ return dumpspec;
}
s64 nfp_net_dump_calculate_size(struct nfp_pf *pf, struct nfp_dumpspec *spec,