[dpdk-dev] [PATCH 1/2] net/i40e: fix incorrect FDIR flex mask
Chenxu Di
chenxux.di at intel.com
Wed Nov 4 09:29:58 CET 2020
The register of FDIR flex mask should not be set during flow validate.
It should be set when flow create.
Fixes: 6ced3dd72f5f ("net/i40e: support flexible payload parsing for FDIR")
Cc: stable at dpdk.org
Signed-off-by: Chenxu Di <chenxux.di at intel.com>
---
drivers/net/i40e/i40e_ethdev.h | 1 +
drivers/net/i40e/i40e_fdir.c | 94 ++++++++++++++++++++++++++++++++
drivers/net/i40e/i40e_flow.c | 97 +---------------------------------
3 files changed, 97 insertions(+), 95 deletions(-)
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 1466998aa..6be929f65 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -604,6 +604,7 @@ struct i40e_fdir_flow_ext {
uint16_t vlan_tci;
uint8_t flexbytes[RTE_ETH_FDIR_MAX_FLEXLEN];
/* It is filled by the flexible payload to match. */
+ uint8_t flex_mask[I40E_FDIR_MAX_FLEX_LEN];
uint8_t is_vf; /* 1 for VF, 0 for port dev */
uint16_t dst_id; /* VF ID, available when is_vf is 1*/
bool inner_ip; /* If there is inner ip */
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index aa8e72949..e31464eb7 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1765,6 +1765,78 @@ i40e_add_del_fdir_filter(struct rte_eth_dev *dev,
return ret;
}
+static int
+i40e_flow_store_flex_mask(struct i40e_pf *pf,
+ enum i40e_filter_pctype pctype,
+ uint8_t *mask)
+{
+ struct i40e_fdir_flex_mask flex_mask;
+ uint8_t nb_bitmask = 0;
+ uint16_t mask_tmp;
+ uint8_t i;
+
+ memset(&flex_mask, 0, sizeof(struct i40e_fdir_flex_mask));
+ for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i += sizeof(uint16_t)) {
+ mask_tmp = I40E_WORD(mask[i], mask[i + 1]);
+ if (mask_tmp) {
+ flex_mask.word_mask |=
+ I40E_FLEX_WORD_MASK(i / sizeof(uint16_t));
+ if (mask_tmp != UINT16_MAX) {
+ flex_mask.bitmask[nb_bitmask].mask = ~mask_tmp;
+ flex_mask.bitmask[nb_bitmask].offset =
+ i / sizeof(uint16_t);
+ nb_bitmask++;
+ if (nb_bitmask > I40E_FDIR_BITMASK_NUM_WORD)
+ return -1;
+ }
+ }
+ }
+ flex_mask.nb_bitmask = nb_bitmask;
+
+ if (pf->fdir.flex_mask_flag[pctype] &&
+ (memcmp(&flex_mask, &pf->fdir.flex_mask[pctype],
+ sizeof(struct i40e_fdir_flex_mask))))
+ return -2;
+ else if (pf->fdir.flex_mask_flag[pctype] &&
+ !(memcmp(&flex_mask, &pf->fdir.flex_mask[pctype],
+ sizeof(struct i40e_fdir_flex_mask))))
+ return 1;
+
+ memcpy(&pf->fdir.flex_mask[pctype], &flex_mask,
+ sizeof(struct i40e_fdir_flex_mask));
+ return 0;
+}
+
+static void
+i40e_flow_set_fdir_flex_msk(struct i40e_pf *pf,
+ enum i40e_filter_pctype pctype)
+{
+ struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+ struct i40e_fdir_flex_mask *flex_mask;
+ uint32_t flxinset, fd_mask;
+ uint8_t i;
+
+ /* Set flex mask */
+ flex_mask = &pf->fdir.flex_mask[pctype];
+ flxinset = (flex_mask->word_mask <<
+ I40E_PRTQF_FD_FLXINSET_INSET_SHIFT) &
+ I40E_PRTQF_FD_FLXINSET_INSET_MASK;
+ i40e_write_rx_ctl(hw, I40E_PRTQF_FD_FLXINSET(pctype), flxinset);
+
+ for (i = 0; i < flex_mask->nb_bitmask; i++) {
+ fd_mask = (flex_mask->bitmask[i].mask <<
+ I40E_PRTQF_FD_MSK_MASK_SHIFT) &
+ I40E_PRTQF_FD_MSK_MASK_MASK;
+ fd_mask |= ((flex_mask->bitmask[i].offset +
+ I40E_FLX_OFFSET_IN_FIELD_VECTOR) <<
+ I40E_PRTQF_FD_MSK_OFFSET_SHIFT) &
+ I40E_PRTQF_FD_MSK_OFFSET_MASK;
+ i40e_write_rx_ctl(hw, I40E_PRTQF_FD_MSK(pctype, i), fd_mask);
+ }
+
+ pf->fdir.flex_mask_flag[pctype] = 1;
+}
+
static inline unsigned char *
i40e_find_available_buffer(struct rte_eth_dev *dev)
{
@@ -1820,10 +1892,12 @@ i40e_flow_add_del_fdir_filter(struct rte_eth_dev *dev,
unsigned char *pkt = NULL;
enum i40e_filter_pctype pctype;
struct i40e_fdir_info *fdir_info = &pf->fdir;
+ uint8_t flex_mask[I40E_FDIR_MAX_FLEX_LEN];
struct i40e_fdir_filter *node;
struct i40e_fdir_filter check_filter; /* Check if the filter exists */
bool wait_status = true;
int ret = 0;
+ int i;
if (pf->fdir.fdir_vsi == NULL) {
PMD_DRV_LOG(ERR, "FDIR is not enabled");
@@ -1856,6 +1930,26 @@ i40e_flow_add_del_fdir_filter(struct rte_eth_dev *dev,
i40e_fdir_filter_convert(filter, &check_filter);
if (add) {
+ if (!filter->input.flow_ext.customized_pctype) {
+ /* Store flex mask to SW */
+ for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i++)
+ flex_mask[i] =
+ filter->input.flow_ext.flex_mask[i];
+
+ ret = i40e_flow_store_flex_mask(pf, pctype, flex_mask);
+ if (ret == -1) {
+ PMD_DRV_LOG(ERR, "Exceed maximal"
+ " number of bitmasks");
+ return -EINVAL;
+ } else if (ret == -2) {
+ PMD_DRV_LOG(ERR, "Conflict with the"
+ " first flexible rule");
+ return -EINVAL;
+ } else if (ret == 0) {
+ i40e_flow_set_fdir_flex_msk(pf, pctype);
+ }
+ }
+
ret = i40e_sw_fdir_filter_insert(pf, &check_filter);
if (ret < 0) {
PMD_DRV_LOG(ERR,
diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
index adc5da1c5..4f916494e 100644
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -2273,47 +2273,6 @@ i40e_flow_store_flex_pit(struct i40e_pf *pf,
return 0;
}
-static int
-i40e_flow_store_flex_mask(struct i40e_pf *pf,
- enum i40e_filter_pctype pctype,
- uint8_t *mask)
-{
- struct i40e_fdir_flex_mask flex_mask;
- uint16_t mask_tmp;
- uint8_t i, nb_bitmask = 0;
-
- memset(&flex_mask, 0, sizeof(struct i40e_fdir_flex_mask));
- for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i += sizeof(uint16_t)) {
- mask_tmp = I40E_WORD(mask[i], mask[i + 1]);
- if (mask_tmp) {
- flex_mask.word_mask |=
- I40E_FLEX_WORD_MASK(i / sizeof(uint16_t));
- if (mask_tmp != UINT16_MAX) {
- flex_mask.bitmask[nb_bitmask].mask = ~mask_tmp;
- flex_mask.bitmask[nb_bitmask].offset =
- i / sizeof(uint16_t);
- nb_bitmask++;
- if (nb_bitmask > I40E_FDIR_BITMASK_NUM_WORD)
- return -1;
- }
- }
- }
- flex_mask.nb_bitmask = nb_bitmask;
-
- if (pf->fdir.flex_mask_flag[pctype] &&
- (memcmp(&flex_mask, &pf->fdir.flex_mask[pctype],
- sizeof(struct i40e_fdir_flex_mask))))
- return -2;
- else if (pf->fdir.flex_mask_flag[pctype] &&
- !(memcmp(&flex_mask, &pf->fdir.flex_mask[pctype],
- sizeof(struct i40e_fdir_flex_mask))))
- return 1;
-
- memcpy(&pf->fdir.flex_mask[pctype], &flex_mask,
- sizeof(struct i40e_fdir_flex_mask));
- return 0;
-}
-
static void
i40e_flow_set_fdir_flex_pit(struct i40e_pf *pf,
enum i40e_flxpld_layer_idx layer_idx,
@@ -2356,36 +2315,6 @@ i40e_flow_set_fdir_flex_pit(struct i40e_pf *pf,
pf->fdir.flex_pit_flag[layer_idx] = 1;
}
-static void
-i40e_flow_set_fdir_flex_msk(struct i40e_pf *pf,
- enum i40e_filter_pctype pctype)
-{
- struct i40e_hw *hw = I40E_PF_TO_HW(pf);
- struct i40e_fdir_flex_mask *flex_mask;
- uint32_t flxinset, fd_mask;
- uint8_t i;
-
- /* Set flex mask */
- flex_mask = &pf->fdir.flex_mask[pctype];
- flxinset = (flex_mask->word_mask <<
- I40E_PRTQF_FD_FLXINSET_INSET_SHIFT) &
- I40E_PRTQF_FD_FLXINSET_INSET_MASK;
- i40e_write_rx_ctl(hw, I40E_PRTQF_FD_FLXINSET(pctype), flxinset);
-
- for (i = 0; i < flex_mask->nb_bitmask; i++) {
- fd_mask = (flex_mask->bitmask[i].mask <<
- I40E_PRTQF_FD_MSK_MASK_SHIFT) &
- I40E_PRTQF_FD_MSK_MASK_MASK;
- fd_mask |= ((flex_mask->bitmask[i].offset +
- I40E_FLX_OFFSET_IN_FIELD_VECTOR) <<
- I40E_PRTQF_FD_MSK_OFFSET_SHIFT) &
- I40E_PRTQF_FD_MSK_OFFSET_MASK;
- i40e_write_rx_ctl(hw, I40E_PRTQF_FD_MSK(pctype, i), fd_mask);
- }
-
- pf->fdir.flex_mask_flag[pctype] = 1;
-}
-
static int
i40e_flow_set_fdir_inset(struct i40e_pf *pf,
enum i40e_filter_pctype pctype,
@@ -2604,10 +2533,8 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
uint16_t len_arr[I40E_MAX_FLXPLD_FIED];
struct i40e_fdir_flex_pit flex_pit;
uint8_t next_dst_off = 0;
- uint8_t flex_mask[I40E_FDIR_MAX_FLEX_LEN];
uint16_t flex_size;
bool cfg_flex_pit = true;
- bool cfg_flex_msk = true;
uint16_t ether_type;
uint32_t vtc_flow_cpu;
bool outer_ip = true;
@@ -2615,7 +2542,6 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
memset(off_arr, 0, sizeof(off_arr));
memset(len_arr, 0, sizeof(len_arr));
- memset(flex_mask, 0, I40E_FDIR_MAX_FLEX_LEN);
filter->input.flow_ext.customized_pctype = false;
for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
if (item->last) {
@@ -3205,7 +3131,8 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
j = i + next_dst_off;
filter->input.flow_ext.flexbytes[j] =
raw_spec->pattern[i];
- flex_mask[j] = raw_mask->pattern[i];
+ filter->input.flow_ext.flex_mask[j] =
+ raw_mask->pattern[i];
}
next_dst_off += raw_spec->length;
@@ -3296,28 +3223,8 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
return -rte_errno;
}
- /* Store flex mask to SW */
- ret = i40e_flow_store_flex_mask(pf, pctype, flex_mask);
- if (ret == -1) {
- rte_flow_error_set(error, EINVAL,
- RTE_FLOW_ERROR_TYPE_ITEM,
- item,
- "Exceed maximal number of bitmasks");
- return -rte_errno;
- } else if (ret == -2) {
- rte_flow_error_set(error, EINVAL,
- RTE_FLOW_ERROR_TYPE_ITEM,
- item,
- "Conflict with the first flexible rule");
- return -rte_errno;
- } else if (ret > 0)
- cfg_flex_msk = false;
-
if (cfg_flex_pit)
i40e_flow_set_fdir_flex_pit(pf, layer_idx, raw_id);
-
- if (cfg_flex_msk)
- i40e_flow_set_fdir_flex_msk(pf, pctype);
}
filter->input.pctype = pctype;
--
2.17.1
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