#define PI_PAGE_SIZE 0x1000
#define PI_PAGE_MASK 0x0FFF
-/* Returns next non-zero index on success or 0 on failure (i.e. out of room). */
-static inline u16
-add_physinfo_entries(u64 inp_pfn, u16 inp_off, u32 inp_len, u16 index,
- u16 max_pi_arr_entries, struct phys_info pi_arr[])
-{
- u32 len;
- u16 i, firstlen;
-
- firstlen = PI_PAGE_SIZE - inp_off;
- if (inp_len <= firstlen) {
- /* The input entry spans only one page - add as is. */
- if (index >= max_pi_arr_entries)
- return 0;
- pi_arr[index].pi_pfn = inp_pfn;
- pi_arr[index].pi_off = (u16)inp_off;
- pi_arr[index].pi_len = (u16)inp_len;
- return index + 1;
- }
-
- /* This entry spans multiple pages. */
- for (len = inp_len, i = 0; len;
- len -= pi_arr[index + i].pi_len, i++) {
- if (index + i >= max_pi_arr_entries)
- return 0;
- pi_arr[index + i].pi_pfn = inp_pfn + i;
- if (i == 0) {
- pi_arr[index].pi_off = inp_off;
- pi_arr[index].pi_len = firstlen;
- } else {
- pi_arr[index + i].pi_off = 0;
- pi_arr[index + i].pi_len =
- (u16)MINNUM(len, (u32)PI_PAGE_SIZE);
- }
- }
- return index + i;
-}
-
#endif /* __IOCHANNEL_H__ */
struct uiscmdrsp cmdrsp[SIZEOF_CMDRSP];
};
+/* Returns next non-zero index on success or 0 on failure (i.e. out of room). */
+static inline u16
+add_physinfo_entries(u64 inp_pfn, u16 inp_off, u32 inp_len, u16 index,
+ u16 max_pi_arr_entries, struct phys_info pi_arr[])
+{
+ u32 len;
+ u16 i, firstlen;
+
+ firstlen = PI_PAGE_SIZE - inp_off;
+ if (inp_len <= firstlen) {
+ /* The input entry spans only one page - add as is. */
+ if (index >= max_pi_arr_entries)
+ return 0;
+ pi_arr[index].pi_pfn = inp_pfn;
+ pi_arr[index].pi_off = (u16)inp_off;
+ pi_arr[index].pi_len = (u16)inp_len;
+ return index + 1;
+ }
+
+ /* This entry spans multiple pages. */
+ for (len = inp_len, i = 0; len;
+ len -= pi_arr[index + i].pi_len, i++) {
+ if (index + i >= max_pi_arr_entries)
+ return 0;
+ pi_arr[index + i].pi_pfn = inp_pfn + i;
+ if (i == 0) {
+ pi_arr[index].pi_off = inp_off;
+ pi_arr[index].pi_len = firstlen;
+ } else {
+ pi_arr[index + i].pi_off = 0;
+ pi_arr[index + i].pi_len =
+ (u16)MINNUM(len, (u32)PI_PAGE_SIZE);
+ }
+ }
+ return index + i;
+}
+
/*
* visor_copy_fragsinfo_from_skb(
* @skb_in: skbuff that we are pulling the frags from