This patch adds a structure to include a flag to indicate if it
is a simple_xor flow so that it's easier to remove the config
when destroying the flow. The patch also simplifies code implementation
logic in ice_hash_create().
In ice_hash_create(), whatever the hash_function is, the filter_ptr->symm
is always 0 and when we destroy the flow, the ice_rem_rss_cfg() is never
carried out. So the destroy function never works well. The patch fixes
this issue and at the same time distinguishes semanteme between simple_xor
and symmetric_toeplitz.
Fixes: 5ad3db8d4bdd ("net/ice: enable advanced RSS")
Signed-off-by: Simei Su <simei...@intel.com>
---
drivers/net/ice/ice_hash.c | 42 +++++++++++++++++++++++-------------------
1 file changed, 23 insertions(+), 19 deletions(-)
diff --git a/drivers/net/ice/ice_hash.c b/drivers/net/ice/ice_hash.c
index 57e7d55..d884343 100644
--- a/drivers/net/ice/ice_hash.c
+++ b/drivers/net/ice/ice_hash.c
@@ -41,6 +41,11 @@ struct rss_meta {
uint8_t hash_function;
};
+struct ice_hash_flow_cfg {
+ bool simple_xor;
+ struct ice_rss_cfg rss_cfg;
+};
+
static int
ice_hash_init(struct ice_adapter *ad);
@@ -452,14 +457,14 @@ struct ice_hash_match_type ice_hash_type_list[] = {
struct ice_vsi *vsi = pf->main_vsi;
int ret;
uint32_t reg;
- struct ice_rss_cfg *filter_ptr;
+ struct ice_hash_flow_cfg *filter_ptr;
uint32_t headermask = ((struct rss_meta *)meta)->pkt_hdr;
uint64_t hash_field = ((struct rss_meta *)meta)->hash_flds;
uint8_t hash_function = ((struct rss_meta *)meta)->hash_function;
filter_ptr = rte_zmalloc("ice_rss_filter",
- sizeof(struct ice_rss_cfg), 0);
+ sizeof(struct ice_hash_flow_cfg), 0);
if (!filter_ptr) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
@@ -474,19 +479,20 @@ struct ice_hash_match_type ice_hash_type_list[] = {
(2 << VSIQF_HASH_CTL_HASH_SCHEME_S);
ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
- filter_ptr->symm = 0;
+ filter_ptr->simple_xor = 1;
goto out;
- } else if (hash_function == RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ) {
- ret = ice_add_rss_cfg(hw, vsi->idx, hash_field, headermask, 1);
- if (ret) {
- rte_flow_error_set(error, EINVAL,
- RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
- "rss flow create fail");
- goto error;
- }
} else {
- ret = ice_add_rss_cfg(hw, vsi->idx, hash_field, headermask, 0);
+ filter_ptr->rss_cfg.packet_hdr = headermask;
+ filter_ptr->rss_cfg.hashed_flds = hash_field;
+ filter_ptr->rss_cfg.symm =
+ (hash_function ==
+ RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ);
+
+ ret = ice_add_rss_cfg(hw, vsi->idx,
+ filter_ptr->rss_cfg.hashed_flds,
+ filter_ptr->rss_cfg.packet_hdr,
+ filter_ptr->rss_cfg.symm);
if (ret) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
@@ -495,9 +501,6 @@ struct ice_hash_match_type ice_hash_type_list[] = {
}
}
- filter_ptr->packet_hdr = headermask;
- filter_ptr->hashed_flds = hash_field;
-
out:
flow->rule = filter_ptr;
rte_free(meta);
@@ -519,11 +522,11 @@ struct ice_hash_match_type ice_hash_type_list[] = {
struct ice_vsi *vsi = pf->main_vsi;
int ret;
uint32_t reg;
- struct ice_rss_cfg *filter_ptr;
+ struct ice_hash_flow_cfg *filter_ptr;
- filter_ptr = (struct ice_rss_cfg *)flow->rule;
+ filter_ptr = (struct ice_hash_flow_cfg *)flow->rule;
- if (filter_ptr->symm == 0) {
+ if (filter_ptr->simple_xor == 1) {
/* Return to symmetric_toeplitz state. */
reg = ICE_READ_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id));
reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
@@ -531,7 +534,8 @@ struct ice_hash_match_type ice_hash_type_list[] = {
ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
} else {
ret = ice_rem_rss_cfg(hw, vsi->idx,
- filter_ptr->hashed_flds, filter_ptr->packet_hdr);
+ filter_ptr->rss_cfg.hashed_flds,
+ filter_ptr->rss_cfg.packet_hdr);
if (ret) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
--
1.8.3.1
