}
}
+static bool vcap_bitarray_zero(int width, u8 *value)
+{
+ int bytes = DIV_ROUND_UP(width, BITS_PER_BYTE);
+ u8 total = 0, bmask = 0xff;
+ int rwidth = width;
+ int idx;
+
+ for (idx = 0; idx < bytes; ++idx, rwidth -= BITS_PER_BYTE) {
+ if (rwidth && rwidth < BITS_PER_BYTE)
+ bmask = (1 << rwidth) - 1;
+ total += value[idx] & bmask;
+ }
+ return total == 0;
+}
+
+static bool vcap_get_bit(u32 *stream, struct vcap_stream_iter *itr)
+{
+ u32 mask = BIT(itr->reg_bitpos);
+ u32 *p = &stream[itr->reg_idx];
+
+ return !!(*p & mask);
+}
+
+static void vcap_decode_field(u32 *stream, struct vcap_stream_iter *itr,
+ int width, u8 *value)
+{
+ int idx;
+
+ /* Loop over the field value bits and get the field bits and
+ * set them in the output value byte array
+ */
+ for (idx = 0; idx < width; idx++) {
+ u8 bidx = idx & 0x7;
+
+ /* Decode one field value bit */
+ if (vcap_get_bit(stream, itr))
+ *value |= 1 << bidx;
+ vcap_iter_next(itr);
+ if (bidx == 7)
+ value++;
+ }
+}
+
+/* Verify that the type id in the stream matches the type id of the keyset */
+static bool vcap_verify_keystream_keyset(struct vcap_control *vctrl,
+ enum vcap_type vt,
+ u32 *keystream,
+ u32 *mskstream,
+ enum vcap_keyfield_set keyset)
+{
+ const struct vcap_info *vcap = &vctrl->vcaps[vt];
+ const struct vcap_field *typefld;
+ const struct vcap_typegroup *tgt;
+ const struct vcap_field *fields;
+ struct vcap_stream_iter iter;
+ const struct vcap_set *info;
+ u32 value = 0;
+ u32 mask = 0;
+
+ if (vcap_keyfield_count(vctrl, vt, keyset) == 0)
+ return false;
+
+ info = vcap_keyfieldset(vctrl, vt, keyset);
+ /* Check that the keyset is valid */
+ if (!info)
+ return false;
+
+ /* a type_id of value -1 means that there is no type field */
+ if (info->type_id == (u8)-1)
+ return true;
+
+ /* Get a valid typegroup for the specific keyset */
+ tgt = vcap_keyfield_typegroup(vctrl, vt, keyset);
+ if (!tgt)
+ return false;
+
+ fields = vcap_keyfields(vctrl, vt, keyset);
+ if (!fields)
+ return false;
+
+ typefld = &fields[VCAP_KF_TYPE];
+ vcap_iter_init(&iter, vcap->sw_width, tgt, typefld->offset);
+ vcap_decode_field(mskstream, &iter, typefld->width, (u8 *)&mask);
+ /* no type info if there are no mask bits */
+ if (vcap_bitarray_zero(typefld->width, (u8 *)&mask))
+ return false;
+
+ /* Get the value of the type field in the stream and compare to the
+ * one define in the vcap keyset
+ */
+ vcap_iter_init(&iter, vcap->sw_width, tgt, typefld->offset);
+ vcap_decode_field(keystream, &iter, typefld->width, (u8 *)&value);
+
+ return (value & mask) == (info->type_id & mask);
+}
+
+/* Verify that the typegroup bits have the correct values */
+static int vcap_verify_typegroups(u32 *stream, int sw_width,
+ const struct vcap_typegroup *tgt, bool mask,
+ int sw_max)
+{
+ struct vcap_stream_iter iter;
+ int sw_cnt, idx;
+
+ vcap_iter_set(&iter, sw_width, tgt, 0);
+ sw_cnt = 0;
+ while (iter.tg->width) {
+ u32 value = 0;
+ u32 tg_value = iter.tg->value;
+
+ if (mask)
+ tg_value = (1 << iter.tg->width) - 1;
+ /* Set position to current typegroup bit */
+ iter.offset = iter.tg->offset;
+ vcap_iter_update(&iter);
+ for (idx = 0; idx < iter.tg->width; idx++) {
+ /* Decode one typegroup bit */
+ if (vcap_get_bit(stream, &iter))
+ value |= 1 << idx;
+ iter.offset++;
+ vcap_iter_update(&iter);
+ }
+ if (value != tg_value)
+ return -EINVAL;
+ iter.tg++; /* next typegroup */
+ sw_cnt++;
+ /* Stop checking more typegroups */
+ if (sw_max && sw_cnt >= sw_max)
+ break;
+ }
+ return 0;
+}
+
+/* Find the subword width of the key typegroup that matches the stream data */
+static int vcap_find_keystream_typegroup_sw(struct vcap_control *vctrl,
+ enum vcap_type vt, u32 *stream,
+ bool mask, int sw_max)
+{
+ const struct vcap_typegroup **tgt;
+ int sw_idx, res;
+
+ tgt = vctrl->vcaps[vt].keyfield_set_typegroups;
+ /* Try the longest subword match first */
+ for (sw_idx = vctrl->vcaps[vt].sw_count; sw_idx >= 0; sw_idx--) {
+ if (!tgt[sw_idx])
+ continue;
+
+ res = vcap_verify_typegroups(stream, vctrl->vcaps[vt].sw_width,
+ tgt[sw_idx], mask, sw_max);
+ if (res == 0)
+ return sw_idx;
+ }
+ return -EINVAL;
+}
+
+/* Verify that the typegroup information, subword count, keyset and type id
+ * are in sync and correct, return the list of matchin keysets
+ */
+int
+vcap_find_keystream_keysets(struct vcap_control *vctrl,
+ enum vcap_type vt,
+ u32 *keystream,
+ u32 *mskstream,
+ bool mask, int sw_max,
+ struct vcap_keyset_list *kslist)
+{
+ const struct vcap_set *keyfield_set;
+ int sw_count, idx;
+
+ sw_count = vcap_find_keystream_typegroup_sw(vctrl, vt, keystream, mask,
+ sw_max);
+ if (sw_count < 0)
+ return sw_count;
+
+ keyfield_set = vctrl->vcaps[vt].keyfield_set;
+ for (idx = 0; idx < vctrl->vcaps[vt].keyfield_set_size; ++idx) {
+ if (keyfield_set[idx].sw_per_item != sw_count)
+ continue;
+
+ if (vcap_verify_keystream_keyset(vctrl, vt, keystream,
+ mskstream, idx))
+ vcap_keyset_list_add(kslist, idx);
+ }
+ if (kslist->cnt > 0)
+ return 0;
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(vcap_find_keystream_keysets);
+
+/* Read key data from a VCAP address and discover if there are any rule keysets
+ * here
+ */
+int vcap_addr_keysets(struct vcap_control *vctrl,
+ struct net_device *ndev,
+ struct vcap_admin *admin,
+ int addr,
+ struct vcap_keyset_list *kslist)
+{
+ enum vcap_type vt = admin->vtype;
+ int keyset_sw_regs, idx;
+ u32 key = 0, mask = 0;
+
+ /* Read the cache at the specified address */
+ keyset_sw_regs = DIV_ROUND_UP(vctrl->vcaps[vt].sw_width, 32);
+ vctrl->ops->update(ndev, admin, VCAP_CMD_READ, VCAP_SEL_ALL, addr);
+ vctrl->ops->cache_read(ndev, admin, VCAP_SEL_ENTRY, 0,
+ keyset_sw_regs);
+ /* Skip uninitialized key/mask entries */
+ for (idx = 0; idx < keyset_sw_regs; ++idx) {
+ key |= ~admin->cache.keystream[idx];
+ mask |= admin->cache.maskstream[idx];
+ }
+ if (key == 0 && mask == 0)
+ return -EINVAL;
+ /* Decode and locate the keysets */
+ return vcap_find_keystream_keysets(vctrl, vt, admin->cache.keystream,
+ admin->cache.maskstream, false, 0,
+ kslist);
+}
+EXPORT_SYMBOL_GPL(vcap_addr_keysets);
+
/* Return the list of keyfields for the keyset */
const struct vcap_field *vcap_keyfields(struct vcap_control *vctrl,
enum vcap_type vt,
return duprule;
}
+static void vcap_apply_width(u8 *dst, int width, int bytes)
+{
+ u8 bmask;
+ int idx;
+
+ for (idx = 0; idx < bytes; idx++) {
+ if (width > 0)
+ if (width < 8)
+ bmask = (1 << width) - 1;
+ else
+ bmask = ~0;
+ else
+ bmask = 0;
+ dst[idx] &= bmask;
+ width -= 8;
+ }
+}
+
+static void vcap_copy_from_w32be(u8 *dst, u8 *src, int size, int width)
+{
+ int idx, ridx, wstart, nidx;
+ int tail_bytes = (((size + 4) >> 2) << 2) - size;
+
+ for (idx = 0, ridx = size - 1; idx < size; ++idx, --ridx) {
+ wstart = (idx >> 2) << 2;
+ nidx = wstart + 3 - (idx & 0x3);
+ if (nidx >= size)
+ nidx -= tail_bytes;
+ dst[nidx] = src[ridx];
+ }
+
+ vcap_apply_width(dst, width, size);
+}
+
+static void vcap_copy_action_bit_field(struct vcap_u1_action *field, u8 *value)
+{
+ field->value = (*value) & 0x1;
+}
+
+static void vcap_copy_limited_actionfield(u8 *dstvalue, u8 *srcvalue,
+ int width, int bytes)
+{
+ memcpy(dstvalue, srcvalue, bytes);
+ vcap_apply_width(dstvalue, width, bytes);
+}
+
+static void vcap_copy_to_client_actionfield(struct vcap_rule_internal *ri,
+ struct vcap_client_actionfield *field,
+ u8 *value, u16 width)
+{
+ int field_size = actionfield_size_table[field->ctrl.type];
+
+ if (ri->admin->w32be) {
+ switch (field->ctrl.type) {
+ case VCAP_FIELD_BIT:
+ vcap_copy_action_bit_field(&field->data.u1, value);
+ break;
+ case VCAP_FIELD_U32:
+ vcap_copy_limited_actionfield((u8 *)&field->data.u32.value,
+ value,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U48:
+ vcap_copy_from_w32be(field->data.u48.value, value,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U56:
+ vcap_copy_from_w32be(field->data.u56.value, value,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U64:
+ vcap_copy_from_w32be(field->data.u64.value, value,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U72:
+ vcap_copy_from_w32be(field->data.u72.value, value,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U112:
+ vcap_copy_from_w32be(field->data.u112.value, value,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U128:
+ vcap_copy_from_w32be(field->data.u128.value, value,
+ field_size, width);
+ break;
+ };
+ } else {
+ switch (field->ctrl.type) {
+ case VCAP_FIELD_BIT:
+ vcap_copy_action_bit_field(&field->data.u1, value);
+ break;
+ case VCAP_FIELD_U32:
+ vcap_copy_limited_actionfield((u8 *)&field->data.u32.value,
+ value,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U48:
+ vcap_copy_limited_actionfield(field->data.u48.value,
+ value,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U56:
+ vcap_copy_limited_actionfield(field->data.u56.value,
+ value,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U64:
+ vcap_copy_limited_actionfield(field->data.u64.value,
+ value,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U72:
+ vcap_copy_limited_actionfield(field->data.u72.value,
+ value,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U112:
+ vcap_copy_limited_actionfield(field->data.u112.value,
+ value,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U128:
+ vcap_copy_limited_actionfield(field->data.u128.value,
+ value,
+ width, field_size);
+ break;
+ };
+ }
+}
+
+static void vcap_copy_key_bit_field(struct vcap_u1_key *field,
+ u8 *value, u8 *mask)
+{
+ field->value = (*value) & 0x1;
+ field->mask = (*mask) & 0x1;
+}
+
+static void vcap_copy_limited_keyfield(u8 *dstvalue, u8 *dstmask,
+ u8 *srcvalue, u8 *srcmask,
+ int width, int bytes)
+{
+ memcpy(dstvalue, srcvalue, bytes);
+ vcap_apply_width(dstvalue, width, bytes);
+ memcpy(dstmask, srcmask, bytes);
+ vcap_apply_width(dstmask, width, bytes);
+}
+
+static void vcap_copy_to_client_keyfield(struct vcap_rule_internal *ri,
+ struct vcap_client_keyfield *field,
+ u8 *value, u8 *mask, u16 width)
+{
+ int field_size = keyfield_size_table[field->ctrl.type] / 2;
+
+ if (ri->admin->w32be) {
+ switch (field->ctrl.type) {
+ case VCAP_FIELD_BIT:
+ vcap_copy_key_bit_field(&field->data.u1, value, mask);
+ break;
+ case VCAP_FIELD_U32:
+ vcap_copy_limited_keyfield((u8 *)&field->data.u32.value,
+ (u8 *)&field->data.u32.mask,
+ value, mask,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U48:
+ vcap_copy_from_w32be(field->data.u48.value, value,
+ field_size, width);
+ vcap_copy_from_w32be(field->data.u48.mask, mask,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U56:
+ vcap_copy_from_w32be(field->data.u56.value, value,
+ field_size, width);
+ vcap_copy_from_w32be(field->data.u56.mask, mask,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U64:
+ vcap_copy_from_w32be(field->data.u64.value, value,
+ field_size, width);
+ vcap_copy_from_w32be(field->data.u64.mask, mask,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U72:
+ vcap_copy_from_w32be(field->data.u72.value, value,
+ field_size, width);
+ vcap_copy_from_w32be(field->data.u72.mask, mask,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U112:
+ vcap_copy_from_w32be(field->data.u112.value, value,
+ field_size, width);
+ vcap_copy_from_w32be(field->data.u112.mask, mask,
+ field_size, width);
+ break;
+ case VCAP_FIELD_U128:
+ vcap_copy_from_w32be(field->data.u128.value, value,
+ field_size, width);
+ vcap_copy_from_w32be(field->data.u128.mask, mask,
+ field_size, width);
+ break;
+ };
+ } else {
+ switch (field->ctrl.type) {
+ case VCAP_FIELD_BIT:
+ vcap_copy_key_bit_field(&field->data.u1, value, mask);
+ break;
+ case VCAP_FIELD_U32:
+ vcap_copy_limited_keyfield((u8 *)&field->data.u32.value,
+ (u8 *)&field->data.u32.mask,
+ value, mask,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U48:
+ vcap_copy_limited_keyfield(field->data.u48.value,
+ field->data.u48.mask,
+ value, mask,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U56:
+ vcap_copy_limited_keyfield(field->data.u56.value,
+ field->data.u56.mask,
+ value, mask,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U64:
+ vcap_copy_limited_keyfield(field->data.u64.value,
+ field->data.u64.mask,
+ value, mask,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U72:
+ vcap_copy_limited_keyfield(field->data.u72.value,
+ field->data.u72.mask,
+ value, mask,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U112:
+ vcap_copy_limited_keyfield(field->data.u112.value,
+ field->data.u112.mask,
+ value, mask,
+ width, field_size);
+ break;
+ case VCAP_FIELD_U128:
+ vcap_copy_limited_keyfield(field->data.u128.value,
+ field->data.u128.mask,
+ value, mask,
+ width, field_size);
+ break;
+ };
+ }
+}
+
+static void vcap_rule_alloc_keyfield(struct vcap_rule_internal *ri,
+ const struct vcap_field *keyfield,
+ enum vcap_key_field key,
+ u8 *value, u8 *mask)
+{
+ struct vcap_client_keyfield *field;
+
+ field = kzalloc(sizeof(*field), GFP_KERNEL);
+ if (!field)
+ return;
+ INIT_LIST_HEAD(&field->ctrl.list);
+ field->ctrl.key = key;
+ field->ctrl.type = keyfield->type;
+ vcap_copy_to_client_keyfield(ri, field, value, mask, keyfield->width);
+ list_add_tail(&field->ctrl.list, &ri->data.keyfields);
+}
+
+/* Read key data from a VCAP address and discover if there is a rule keyset
+ * here
+ */
+static bool
+vcap_verify_actionstream_actionset(struct vcap_control *vctrl,
+ enum vcap_type vt,
+ u32 *actionstream,
+ enum vcap_actionfield_set actionset)
+{
+ const struct vcap_typegroup *tgt;
+ const struct vcap_field *fields;
+ const struct vcap_set *info;
+
+ if (vcap_actionfield_count(vctrl, vt, actionset) == 0)
+ return false;
+
+ info = vcap_actionfieldset(vctrl, vt, actionset);
+ /* Check that the actionset is valid */
+ if (!info)
+ return false;
+
+ /* a type_id of value -1 means that there is no type field */
+ if (info->type_id == (u8)-1)
+ return true;
+
+ /* Get a valid typegroup for the specific actionset */
+ tgt = vcap_actionfield_typegroup(vctrl, vt, actionset);
+ if (!tgt)
+ return false;
+
+ fields = vcap_actionfields(vctrl, vt, actionset);
+ if (!fields)
+ return false;
+
+ /* Later this will be expanded with a check of the type id */
+ return true;
+}
+
+/* Find the subword width of the action typegroup that matches the stream data
+ */
+static int vcap_find_actionstream_typegroup_sw(struct vcap_control *vctrl,
+ enum vcap_type vt, u32 *stream,
+ int sw_max)
+{
+ const struct vcap_typegroup **tgt;
+ int sw_idx, res;
+
+ tgt = vctrl->vcaps[vt].actionfield_set_typegroups;
+ /* Try the longest subword match first */
+ for (sw_idx = vctrl->vcaps[vt].sw_count; sw_idx >= 0; sw_idx--) {
+ if (!tgt[sw_idx])
+ continue;
+ res = vcap_verify_typegroups(stream, vctrl->vcaps[vt].act_width,
+ tgt[sw_idx], false, sw_max);
+ if (res == 0)
+ return sw_idx;
+ }
+ return -EINVAL;
+}
+
+/* Verify that the typegroup information, subword count, actionset and type id
+ * are in sync and correct, return the actionset
+ */
+static enum vcap_actionfield_set
+vcap_find_actionstream_actionset(struct vcap_control *vctrl,
+ enum vcap_type vt,
+ u32 *stream,
+ int sw_max)
+{
+ const struct vcap_set *actionfield_set;
+ int sw_count, idx;
+ bool res;
+
+ sw_count = vcap_find_actionstream_typegroup_sw(vctrl, vt, stream,
+ sw_max);
+ if (sw_count < 0)
+ return sw_count;
+
+ actionfield_set = vctrl->vcaps[vt].actionfield_set;
+ for (idx = 0; idx < vctrl->vcaps[vt].actionfield_set_size; ++idx) {
+ if (actionfield_set[idx].sw_per_item != sw_count)
+ continue;
+
+ res = vcap_verify_actionstream_actionset(vctrl, vt,
+ stream, idx);
+ if (res)
+ return idx;
+ }
+ return -EINVAL;
+}
+
+/* Store action value in an element in a list for the client */
+static void vcap_rule_alloc_actionfield(struct vcap_rule_internal *ri,
+ const struct vcap_field *actionfield,
+ enum vcap_action_field action,
+ u8 *value)
+{
+ struct vcap_client_actionfield *field;
+
+ field = kzalloc(sizeof(*field), GFP_KERNEL);
+ if (!field)
+ return;
+ INIT_LIST_HEAD(&field->ctrl.list);
+ field->ctrl.action = action;
+ field->ctrl.type = actionfield->type;
+ vcap_copy_to_client_actionfield(ri, field, value, actionfield->width);
+ list_add_tail(&field->ctrl.list, &ri->data.actionfields);
+}
+
+static int vcap_decode_actionset(struct vcap_rule_internal *ri)
+{
+ struct vcap_control *vctrl = ri->vctrl;
+ struct vcap_admin *admin = ri->admin;
+ const struct vcap_field *actionfield;
+ enum vcap_actionfield_set actionset;
+ enum vcap_type vt = admin->vtype;
+ const struct vcap_typegroup *tgt;
+ struct vcap_stream_iter iter;
+ int idx, res, actfield_count;
+ u32 *actstream;
+ u8 value[16];
+
+ actstream = admin->cache.actionstream;
+ res = vcap_find_actionstream_actionset(vctrl, vt, actstream, 0);
+ if (res < 0) {
+ pr_err("%s:%d: could not find valid actionset: %d\n",
+ __func__, __LINE__, res);
+ return -EINVAL;
+ }
+ actionset = res;
+ actfield_count = vcap_actionfield_count(vctrl, vt, actionset);
+ actionfield = vcap_actionfields(vctrl, vt, actionset);
+ tgt = vcap_actionfield_typegroup(vctrl, vt, actionset);
+ /* Start decoding the stream */
+ for (idx = 0; idx < actfield_count; ++idx) {
+ if (actionfield[idx].width <= 0)
+ continue;
+ /* Get the action */
+ memset(value, 0, DIV_ROUND_UP(actionfield[idx].width, 8));
+ vcap_iter_init(&iter, vctrl->vcaps[vt].act_width, tgt,
+ actionfield[idx].offset);
+ vcap_decode_field(actstream, &iter, actionfield[idx].width,
+ value);
+ /* Skip if no bits are set */
+ if (vcap_bitarray_zero(actionfield[idx].width, value))
+ continue;
+ vcap_rule_alloc_actionfield(ri, &actionfield[idx], idx, value);
+ /* Later the action id will also be checked */
+ }
+ return vcap_set_rule_set_actionset((struct vcap_rule *)ri, actionset);
+}
+
+static int vcap_decode_keyset(struct vcap_rule_internal *ri)
+{
+ struct vcap_control *vctrl = ri->vctrl;
+ struct vcap_stream_iter kiter, miter;
+ struct vcap_admin *admin = ri->admin;
+ enum vcap_keyfield_set keysets[10];
+ const struct vcap_field *keyfield;
+ enum vcap_type vt = admin->vtype;
+ const struct vcap_typegroup *tgt;
+ struct vcap_keyset_list matches;
+ enum vcap_keyfield_set keyset;
+ int idx, res, keyfield_count;
+ u32 *maskstream;
+ u32 *keystream;
+ u8 value[16];
+ u8 mask[16];
+
+ keystream = admin->cache.keystream;
+ maskstream = admin->cache.maskstream;
+ matches.keysets = keysets;
+ matches.cnt = 0;
+ matches.max = ARRAY_SIZE(keysets);
+ res = vcap_find_keystream_keysets(vctrl, vt, keystream, maskstream,
+ false, 0, &matches);
+ if (res < 0) {
+ pr_err("%s:%d: could not find valid keysets: %d\n",
+ __func__, __LINE__, res);
+ return -EINVAL;
+ }
+ keyset = matches.keysets[0];
+ keyfield_count = vcap_keyfield_count(vctrl, vt, keyset);
+ keyfield = vcap_keyfields(vctrl, vt, keyset);
+ tgt = vcap_keyfield_typegroup(vctrl, vt, keyset);
+ /* Start decoding the streams */
+ for (idx = 0; idx < keyfield_count; ++idx) {
+ if (keyfield[idx].width <= 0)
+ continue;
+ /* First get the mask */
+ memset(mask, 0, DIV_ROUND_UP(keyfield[idx].width, 8));
+ vcap_iter_init(&miter, vctrl->vcaps[vt].sw_width, tgt,
+ keyfield[idx].offset);
+ vcap_decode_field(maskstream, &miter, keyfield[idx].width,
+ mask);
+ /* Skip if no mask bits are set */
+ if (vcap_bitarray_zero(keyfield[idx].width, mask))
+ continue;
+ /* Get the key */
+ memset(value, 0, DIV_ROUND_UP(keyfield[idx].width, 8));
+ vcap_iter_init(&kiter, vctrl->vcaps[vt].sw_width, tgt,
+ keyfield[idx].offset);
+ vcap_decode_field(keystream, &kiter, keyfield[idx].width,
+ value);
+ vcap_rule_alloc_keyfield(ri, &keyfield[idx], idx, value, mask);
+ }
+ return vcap_set_rule_set_keyset((struct vcap_rule *)ri, keyset);
+}
+
+/* Read VCAP content into the VCAP cache */
+static int vcap_read_rule(struct vcap_rule_internal *ri)
+{
+ struct vcap_admin *admin = ri->admin;
+ int sw_idx, ent_idx = 0, act_idx = 0;
+ u32 addr = ri->addr;
+
+ if (!ri->size || !ri->keyset_sw_regs || !ri->actionset_sw_regs) {
+ pr_err("%s:%d: rule is empty\n", __func__, __LINE__);
+ return -EINVAL;
+ }
+ vcap_erase_cache(ri);
+ /* Use the values in the streams to read the VCAP cache */
+ for (sw_idx = 0; sw_idx < ri->size; sw_idx++, addr++) {
+ ri->vctrl->ops->update(ri->ndev, admin, VCAP_CMD_READ,
+ VCAP_SEL_ALL, addr);
+ ri->vctrl->ops->cache_read(ri->ndev, admin,
+ VCAP_SEL_ENTRY, ent_idx,
+ ri->keyset_sw_regs);
+ ri->vctrl->ops->cache_read(ri->ndev, admin,
+ VCAP_SEL_ACTION, act_idx,
+ ri->actionset_sw_regs);
+ if (sw_idx == 0)
+ ri->vctrl->ops->cache_read(ri->ndev, admin,
+ VCAP_SEL_COUNTER,
+ ri->counter_id, 0);
+ ent_idx += ri->keyset_sw_regs;
+ act_idx += ri->actionset_sw_regs;
+ }
+ return 0;
+}
+
/* Write VCAP cache content to the VCAP HW instance */
static int vcap_write_rule(struct vcap_rule_internal *ri)
{
}
EXPORT_SYMBOL_GPL(vcap_free_rule);
+struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)
+{
+ struct vcap_rule_internal *elem;
+ struct vcap_rule_internal *ri;
+ int err;
+
+ ri = NULL;
+
+ err = vcap_api_check(vctrl);
+ if (err)
+ return ERR_PTR(err);
+ elem = vcap_lookup_rule(vctrl, id);
+ if (!elem)
+ return NULL;
+ mutex_lock(&elem->admin->lock);
+ ri = vcap_dup_rule(elem);
+ if (IS_ERR(ri))
+ goto unlock;
+ err = vcap_read_rule(ri);
+ if (err) {
+ ri = ERR_PTR(err);
+ goto unlock;
+ }
+ err = vcap_decode_keyset(ri);
+ if (err) {
+ ri = ERR_PTR(err);
+ goto unlock;
+ }
+ err = vcap_decode_actionset(ri);
+ if (err) {
+ ri = ERR_PTR(err);
+ goto unlock;
+ }
+
+unlock:
+ mutex_unlock(&elem->admin->lock);
+ return (struct vcap_rule *)ri;
+}
+EXPORT_SYMBOL_GPL(vcap_get_rule);
+
/* Return the alignment offset for a new rule address */
static int vcap_valid_rule_move(struct vcap_rule_internal *el, int offset)
{
struct net_device *ndev;
};
-static bool vcap_bitarray_zero(int width, u8 *value)
-{
- int bytes = DIV_ROUND_UP(width, BITS_PER_BYTE);
- u8 total = 0, bmask = 0xff;
- int rwidth = width;
- int idx;
-
- for (idx = 0; idx < bytes; ++idx, rwidth -= BITS_PER_BYTE) {
- if (rwidth && rwidth < BITS_PER_BYTE)
- bmask = (1 << rwidth) - 1;
- total += value[idx] & bmask;
- }
- return total == 0;
-}
-
-static bool vcap_get_bit(u32 *stream, struct vcap_stream_iter *itr)
-{
- u32 mask = BIT(itr->reg_bitpos);
- u32 *p = &stream[itr->reg_idx];
-
- return !!(*p & mask);
-}
-
-static void vcap_decode_field(u32 *stream, struct vcap_stream_iter *itr,
- int width, u8 *value)
-{
- int idx;
-
- /* Loop over the field value bits and get the field bits and
- * set them in the output value byte array
- */
- for (idx = 0; idx < width; idx++) {
- u8 bidx = idx & 0x7;
-
- /* Decode one field value bit */
- if (vcap_get_bit(stream, itr))
- *value |= 1 << bidx;
- vcap_iter_next(itr);
- if (bidx == 7)
- value++;
- }
-}
-
-/* Verify that the typegroup bits have the correct values */
-static int vcap_verify_typegroups(u32 *stream, int sw_width,
- const struct vcap_typegroup *tgt, bool mask,
- int sw_max)
-{
- struct vcap_stream_iter iter;
- int sw_cnt, idx;
-
- vcap_iter_set(&iter, sw_width, tgt, 0);
- sw_cnt = 0;
- while (iter.tg->width) {
- u32 value = 0;
- u32 tg_value = iter.tg->value;
-
- if (mask)
- tg_value = (1 << iter.tg->width) - 1;
- /* Set position to current typegroup bit */
- iter.offset = iter.tg->offset;
- vcap_iter_update(&iter);
- for (idx = 0; idx < iter.tg->width; idx++) {
- /* Decode one typegroup bit */
- if (vcap_get_bit(stream, &iter))
- value |= 1 << idx;
- iter.offset++;
- vcap_iter_update(&iter);
- }
- if (value != tg_value)
- return -EINVAL;
- iter.tg++; /* next typegroup */
- sw_cnt++;
- /* Stop checking more typegroups */
- if (sw_max && sw_cnt >= sw_max)
- break;
- }
- return 0;
-}
-
-/* Find the subword width of the key typegroup that matches the stream data */
-static int vcap_find_keystream_typegroup_sw(struct vcap_control *vctrl,
- enum vcap_type vt, u32 *stream,
- bool mask, int sw_max)
-{
- const struct vcap_typegroup **tgt;
- int sw_idx, res;
-
- tgt = vctrl->vcaps[vt].keyfield_set_typegroups;
- /* Try the longest subword match first */
- for (sw_idx = vctrl->vcaps[vt].sw_count; sw_idx >= 0; sw_idx--) {
- if (!tgt[sw_idx])
- continue;
-
- res = vcap_verify_typegroups(stream, vctrl->vcaps[vt].sw_width,
- tgt[sw_idx], mask, sw_max);
- if (res == 0)
- return sw_idx;
- }
- return -EINVAL;
-}
-
-/* Find the subword width of the action typegroup that matches the stream data
- */
-static int vcap_find_actionstream_typegroup_sw(struct vcap_control *vctrl,
- enum vcap_type vt, u32 *stream,
- int sw_max)
-{
- const struct vcap_typegroup **tgt;
- int sw_idx, res;
-
- tgt = vctrl->vcaps[vt].actionfield_set_typegroups;
- /* Try the longest subword match first */
- for (sw_idx = vctrl->vcaps[vt].sw_count; sw_idx >= 0; sw_idx--) {
- if (!tgt[sw_idx])
- continue;
- res = vcap_verify_typegroups(stream, vctrl->vcaps[vt].act_width,
- tgt[sw_idx], false, sw_max);
- if (res == 0)
- return sw_idx;
- }
- return -EINVAL;
-}
-
-/* Verify that the type id in the stream matches the type id of the keyset */
-static bool vcap_verify_keystream_keyset(struct vcap_control *vctrl,
- enum vcap_type vt,
- u32 *keystream,
- u32 *mskstream,
- enum vcap_keyfield_set keyset)
-{
- const struct vcap_info *vcap = &vctrl->vcaps[vt];
- const struct vcap_field *typefld;
- const struct vcap_typegroup *tgt;
- const struct vcap_field *fields;
- struct vcap_stream_iter iter;
- const struct vcap_set *info;
- u32 value = 0;
- u32 mask = 0;
-
- if (vcap_keyfield_count(vctrl, vt, keyset) == 0)
- return false;
-
- info = vcap_keyfieldset(vctrl, vt, keyset);
- /* Check that the keyset is valid */
- if (!info)
- return false;
-
- /* a type_id of value -1 means that there is no type field */
- if (info->type_id == (u8)-1)
- return true;
-
- /* Get a valid typegroup for the specific keyset */
- tgt = vcap_keyfield_typegroup(vctrl, vt, keyset);
- if (!tgt)
- return false;
-
- fields = vcap_keyfields(vctrl, vt, keyset);
- if (!fields)
- return false;
-
- typefld = &fields[VCAP_KF_TYPE];
- vcap_iter_init(&iter, vcap->sw_width, tgt, typefld->offset);
- vcap_decode_field(mskstream, &iter, typefld->width, (u8 *)&mask);
- /* no type info if there are no mask bits */
- if (vcap_bitarray_zero(typefld->width, (u8 *)&mask))
- return false;
-
- /* Get the value of the type field in the stream and compare to the
- * one define in the vcap keyset
- */
- vcap_iter_init(&iter, vcap->sw_width, tgt, typefld->offset);
- vcap_decode_field(keystream, &iter, typefld->width, (u8 *)&value);
-
- return (value & mask) == (info->type_id & mask);
-}
-
-/* Verify that the typegroup information, subword count, keyset and type id
- * are in sync and correct, return the list of matching keysets
- */
-static int
-vcap_find_keystream_keysets(struct vcap_control *vctrl,
- enum vcap_type vt,
- u32 *keystream,
- u32 *mskstream,
- bool mask, int sw_max,
- struct vcap_keyset_list *kslist)
-{
- const struct vcap_set *keyfield_set;
- int sw_count, idx;
-
- sw_count = vcap_find_keystream_typegroup_sw(vctrl, vt, keystream, mask,
- sw_max);
- if (sw_count < 0)
- return sw_count;
-
- keyfield_set = vctrl->vcaps[vt].keyfield_set;
- for (idx = 0; idx < vctrl->vcaps[vt].keyfield_set_size; ++idx) {
- if (keyfield_set[idx].sw_per_item != sw_count)
- continue;
-
- if (vcap_verify_keystream_keyset(vctrl, vt, keystream,
- mskstream, idx))
- vcap_keyset_list_add(kslist, idx);
- }
- if (kslist->cnt > 0)
- return 0;
- return -EINVAL;
-}
-
-/* Read key data from a VCAP address and discover if there is a rule keyset
- * here
- */
-static bool
-vcap_verify_actionstream_actionset(struct vcap_control *vctrl,
- enum vcap_type vt,
- u32 *actionstream,
- enum vcap_actionfield_set actionset)
-{
- const struct vcap_typegroup *tgt;
- const struct vcap_field *fields;
- const struct vcap_set *info;
-
- if (vcap_actionfield_count(vctrl, vt, actionset) == 0)
- return false;
-
- info = vcap_actionfieldset(vctrl, vt, actionset);
- /* Check that the actionset is valid */
- if (!info)
- return false;
-
- /* a type_id of value -1 means that there is no type field */
- if (info->type_id == (u8)-1)
- return true;
-
- /* Get a valid typegroup for the specific actionset */
- tgt = vcap_actionfield_typegroup(vctrl, vt, actionset);
- if (!tgt)
- return false;
-
- fields = vcap_actionfields(vctrl, vt, actionset);
- if (!fields)
- return false;
-
- /* Later this will be expanded with a check of the type id */
- return true;
-}
-
-/* Verify that the typegroup information, subword count, actionset and type id
- * are in sync and correct, return the actionset
- */
-static enum vcap_actionfield_set
-vcap_find_actionstream_actionset(struct vcap_control *vctrl,
- enum vcap_type vt,
- u32 *stream,
- int sw_max)
-{
- const struct vcap_set *actionfield_set;
- int sw_count, idx;
- bool res;
-
- sw_count = vcap_find_actionstream_typegroup_sw(vctrl, vt, stream,
- sw_max);
- if (sw_count < 0)
- return sw_count;
-
- actionfield_set = vctrl->vcaps[vt].actionfield_set;
- for (idx = 0; idx < vctrl->vcaps[vt].actionfield_set_size; ++idx) {
- if (actionfield_set[idx].sw_per_item != sw_count)
- continue;
-
- res = vcap_verify_actionstream_actionset(vctrl, vt,
- stream, idx);
- if (res)
- return idx;
- }
- return -EINVAL;
-}
-
-/* Read key data from a VCAP address and discover if there are any rule keysets
- * here
- */
-static int vcap_addr_keysets(struct vcap_control *vctrl,
- struct net_device *ndev,
- struct vcap_admin *admin,
- int addr,
- struct vcap_keyset_list *kslist)
-{
- enum vcap_type vt = admin->vtype;
- int keyset_sw_regs, idx;
- u32 key = 0, mask = 0;
-
- /* Read the cache at the specified address */
- keyset_sw_regs = DIV_ROUND_UP(vctrl->vcaps[vt].sw_width, 32);
- vctrl->ops->update(ndev, admin, VCAP_CMD_READ, VCAP_SEL_ALL, addr);
- vctrl->ops->cache_read(ndev, admin, VCAP_SEL_ENTRY, 0,
- keyset_sw_regs);
- /* Skip uninitialized key/mask entries */
- for (idx = 0; idx < keyset_sw_regs; ++idx) {
- key |= ~admin->cache.keystream[idx];
- mask |= admin->cache.maskstream[idx];
- }
- if (key == 0 && mask == 0)
- return -EINVAL;
- /* Decode and locate the keysets */
- return vcap_find_keystream_keysets(vctrl, vt, admin->cache.keystream,
- admin->cache.maskstream, false, 0,
- kslist);
-}
-
-static int vcap_read_rule(struct vcap_rule_internal *ri)
-{
- struct vcap_admin *admin = ri->admin;
- int sw_idx, ent_idx = 0, act_idx = 0;
- u32 addr = ri->addr;
-
- if (!ri->size || !ri->keyset_sw_regs || !ri->actionset_sw_regs) {
- pr_err("%s:%d: rule is empty\n", __func__, __LINE__);
- return -EINVAL;
- }
- vcap_erase_cache(ri);
- /* Use the values in the streams to read the VCAP cache */
- for (sw_idx = 0; sw_idx < ri->size; sw_idx++, addr++) {
- ri->vctrl->ops->update(ri->ndev, admin, VCAP_CMD_READ,
- VCAP_SEL_ALL, addr);
- ri->vctrl->ops->cache_read(ri->ndev, admin,
- VCAP_SEL_ENTRY, ent_idx,
- ri->keyset_sw_regs);
- ri->vctrl->ops->cache_read(ri->ndev, admin,
- VCAP_SEL_ACTION, act_idx,
- ri->actionset_sw_regs);
- if (sw_idx == 0)
- ri->vctrl->ops->cache_read(ri->ndev, admin,
- VCAP_SEL_COUNTER,
- ri->counter_id, 0);
- ent_idx += ri->keyset_sw_regs;
- act_idx += ri->actionset_sw_regs;
- }
- return 0;
-}
-
/* Dump the keyfields value and mask values */
static void vcap_debugfs_show_rule_keyfield(struct vcap_control *vctrl,
struct vcap_output_print *out,
enum vcap_key_field key,
const struct vcap_field *keyfield,
- u8 *value, u8 *mask)
+ struct vcap_client_keyfield_data *data)
{
bool hex = false;
+ u8 *value, *mask;
int idx, bytes;
out->prf(out->dst, " %s: W%d: ", vcap_keyfield_name(vctrl, key),
switch (keyfield[key].type) {
case VCAP_FIELD_BIT:
- out->prf(out->dst, "%d/%d", value[0], mask[0]);
+ out->prf(out->dst, "%d/%d", data->u1.value, data->u1.mask);
break;
case VCAP_FIELD_U32:
+ value = (u8 *)(&data->u32.value);
+ mask = (u8 *)(&data->u32.mask);
+
if (key == VCAP_KF_L3_IP4_SIP || key == VCAP_KF_L3_IP4_DIP) {
- out->prf(out->dst, "%pI4h/%pI4h", value, mask);
+ out->prf(out->dst, "%pI4h/%pI4h", &data->u32.value,
+ &data->u32.mask);
} else if (key == VCAP_KF_ETYPE ||
key == VCAP_KF_IF_IGR_PORT_MASK) {
hex = true;
} else {
u32 fmsk = (1 << keyfield[key].width) - 1;
- u32 val = *(u32 *)value;
- u32 msk = *(u32 *)mask;
- out->prf(out->dst, "%u/%u", val & fmsk, msk & fmsk);
+ out->prf(out->dst, "%u/%u", data->u32.value & fmsk,
+ data->u32.mask & fmsk);
}
break;
case VCAP_FIELD_U48:
+ value = data->u48.value;
+ mask = data->u48.mask;
if (key == VCAP_KF_L2_SMAC || key == VCAP_KF_L2_DMAC)
- out->prf(out->dst, "%pMR/%pMR", value, mask);
+ out->prf(out->dst, "%pMR/%pMR", data->u48.value,
+ data->u48.mask);
else
hex = true;
break;
case VCAP_FIELD_U56:
+ value = data->u56.value;
+ mask = data->u56.mask;
+ hex = true;
+ break;
case VCAP_FIELD_U64:
+ value = data->u64.value;
+ mask = data->u64.mask;
+ hex = true;
+ break;
case VCAP_FIELD_U72:
+ value = data->u72.value;
+ mask = data->u72.mask;
+ hex = true;
+ break;
case VCAP_FIELD_U112:
+ value = data->u112.value;
+ mask = data->u112.mask;
hex = true;
break;
case VCAP_FIELD_U128:
if (key == VCAP_KF_L3_IP6_SIP || key == VCAP_KF_L3_IP6_DIP) {
u8 nvalue[16], nmask[16];
- vcap_netbytes_copy(nvalue, value, sizeof(nvalue));
- vcap_netbytes_copy(nmask, mask, sizeof(nmask));
+ vcap_netbytes_copy(nvalue, data->u128.value,
+ sizeof(nvalue));
+ vcap_netbytes_copy(nmask, data->u128.mask,
+ sizeof(nmask));
out->prf(out->dst, "%pI6/%pI6", nvalue, nmask);
} else {
hex = true;
struct vcap_output_print *out)
{
struct vcap_control *vctrl = ri->vctrl;
- struct vcap_stream_iter kiter, miter;
struct vcap_admin *admin = ri->admin;
enum vcap_keyfield_set keysets[10];
const struct vcap_field *keyfield;
enum vcap_type vt = admin->vtype;
- const struct vcap_typegroup *tgt;
+ struct vcap_client_keyfield *ckf;
struct vcap_keyset_list matches;
- enum vcap_keyfield_set keyset;
- int idx, res, keyfield_count;
u32 *maskstream;
u32 *keystream;
- u8 value[16];
- u8 mask[16];
+ int res;
keystream = admin->cache.keystream;
maskstream = admin->cache.maskstream;
__func__, __LINE__, res);
return -EINVAL;
}
- keyset = matches.keysets[0];
out->prf(out->dst, " keysets:");
- for (idx = 0; idx < matches.cnt; ++idx)
+ for (int idx = 0; idx < matches.cnt; ++idx)
out->prf(out->dst, " %s",
vcap_keyset_name(vctrl, matches.keysets[idx]));
out->prf(out->dst, "\n");
out->prf(out->dst, " keyset_sw: %d\n", ri->keyset_sw);
out->prf(out->dst, " keyset_sw_regs: %d\n", ri->keyset_sw_regs);
- keyfield_count = vcap_keyfield_count(vctrl, vt, keyset);
- keyfield = vcap_keyfields(vctrl, vt, keyset);
- tgt = vcap_keyfield_typegroup(vctrl, vt, keyset);
- /* Start decoding the streams */
- for (idx = 0; idx < keyfield_count; ++idx) {
- if (keyfield[idx].width <= 0)
- continue;
- /* First get the mask */
- memset(mask, 0, DIV_ROUND_UP(keyfield[idx].width, 8));
- vcap_iter_init(&miter, vctrl->vcaps[vt].sw_width, tgt,
- keyfield[idx].offset);
- vcap_decode_field(maskstream, &miter, keyfield[idx].width,
- mask);
- /* Skip if no mask bits are set */
- if (vcap_bitarray_zero(keyfield[idx].width, mask))
- continue;
- /* Get the key */
- memset(value, 0, DIV_ROUND_UP(keyfield[idx].width, 8));
- vcap_iter_init(&kiter, vctrl->vcaps[vt].sw_width, tgt,
- keyfield[idx].offset);
- vcap_decode_field(keystream, &kiter, keyfield[idx].width,
- value);
- vcap_debugfs_show_rule_keyfield(vctrl, out, idx, keyfield,
- value, mask);
+
+ list_for_each_entry(ckf, &ri->data.keyfields, ctrl.list) {
+ keyfield = vcap_keyfields(vctrl, admin->vtype, ri->data.keyset);
+ vcap_debugfs_show_rule_keyfield(vctrl, out, ckf->ctrl.key,
+ keyfield, &ckf->data);
}
+
return 0;
}
struct vcap_control *vctrl = ri->vctrl;
struct vcap_admin *admin = ri->admin;
const struct vcap_field *actionfield;
- enum vcap_actionfield_set actionset;
- enum vcap_type vt = admin->vtype;
- const struct vcap_typegroup *tgt;
- struct vcap_stream_iter iter;
- int idx, res, actfield_count;
- u32 *actstream;
- u8 value[16];
- bool no_bits;
-
- actstream = admin->cache.actionstream;
- res = vcap_find_actionstream_actionset(vctrl, vt, actstream, 0);
- if (res < 0) {
- pr_err("%s:%d: could not find valid actionset: %d\n",
- __func__, __LINE__, res);
- return -EINVAL;
- }
- actionset = res;
+ struct vcap_client_actionfield *caf;
+
out->prf(out->dst, " actionset: %s\n",
vcap_actionset_name(vctrl, ri->data.actionset));
out->prf(out->dst, " actionset_sw: %d\n", ri->actionset_sw);
out->prf(out->dst, " actionset_sw_regs: %d\n", ri->actionset_sw_regs);
- actfield_count = vcap_actionfield_count(vctrl, vt, actionset);
- actionfield = vcap_actionfields(vctrl, vt, actionset);
- tgt = vcap_actionfield_typegroup(vctrl, vt, actionset);
- /* Start decoding the stream */
- for (idx = 0; idx < actfield_count; ++idx) {
- if (actionfield[idx].width <= 0)
- continue;
- /* Get the action */
- memset(value, 0, DIV_ROUND_UP(actionfield[idx].width, 8));
- vcap_iter_init(&iter, vctrl->vcaps[vt].act_width, tgt,
- actionfield[idx].offset);
- vcap_decode_field(actstream, &iter, actionfield[idx].width,
- value);
- /* Skip if no bits are set */
- no_bits = vcap_bitarray_zero(actionfield[idx].width, value);
- if (no_bits)
- continue;
- /* Later the action id will also be checked */
- vcap_debugfs_show_rule_actionfield(vctrl, out, idx, actionfield,
- value);
+
+ list_for_each_entry(caf, &ri->data.actionfields, ctrl.list) {
+ actionfield = vcap_actionfields(vctrl, admin->vtype,
+ ri->data.actionset);
+ vcap_debugfs_show_rule_actionfield(vctrl, out, caf->ctrl.action,
+ actionfield,
+ &caf->data.u1.value);
}
+
return 0;
}
struct vcap_admin *admin,
struct vcap_output_print *out)
{
- struct vcap_rule_internal *elem, *ri;
+ struct vcap_rule_internal *elem;
+ struct vcap_rule *vrule;
int ret = 0;
vcap_show_admin_info(vctrl, admin, out);
- mutex_lock(&admin->lock);
list_for_each_entry(elem, &admin->rules, list) {
- ri = vcap_dup_rule(elem);
- if (IS_ERR(ri)) {
- ret = PTR_ERR(ri);
- goto err_unlock;
+ vrule = vcap_get_rule(vctrl, elem->data.id);
+ if (IS_ERR_OR_NULL(vrule)) {
+ ret = PTR_ERR(vrule);
+ break;
}
- /* Read data from VCAP */
- ret = vcap_read_rule(ri);
- if (ret)
- goto err_free_rule;
+
out->prf(out->dst, "\n");
- vcap_show_admin_rule(vctrl, admin, out, ri);
- vcap_free_rule((struct vcap_rule *)ri);
+ vcap_show_admin_rule(vctrl, admin, out, to_intrule(vrule));
+ vcap_free_rule(vrule);
}
- mutex_unlock(&admin->lock);
- return 0;
-
-err_free_rule:
- vcap_free_rule((struct vcap_rule *)ri);
-err_unlock:
- mutex_unlock(&admin->lock);
return ret;
}
projects / linux.git / commitdiff