This serial includes some cleanup and one optimization patches for
HNS3 driver.
Guangbin Huang (1):
net: hns3: delete unnecessary vf value judgement when get vport id
Hao Chen (2):
net: hns3: fix hns3 driver header file not self-contained issue
net: hns3: replace magic numbers with macro for IPv4/v6
Jian Shen (1):
net: hns3: refine the tcam key convert handle
drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h | 4 +++-
.../hns3/hns3_common/hclge_comm_tqp_stats.h | 2 ++
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 12 ++++++------
drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 6 ++++++
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 4 +---
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 11 +++--------
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h | 5 ++++-
7 files changed, 25 insertions(+), 19 deletions(-)
--
2.33.0
From: Hao Chen <[email protected]>
The hns3 driver header file uses the structure of other files, but does
not include corresponding file, which causes a check warning that the
header file is not self-contained.
Therefore, the required header file is included in the header file, and
the structure declaration is added to the header file to avoid cyclic
dependency of the header file.
Signed-off-by: Hao Chen <[email protected]>
Signed-off-by: Guangbin Huang <[email protected]>
---
drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h | 4 +++-
.../hisilicon/hns3/hns3_common/hclge_comm_tqp_stats.h | 2 ++
drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 3 +++
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h | 5 ++++-
4 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
index abcd7877f7d2..487216aeae50 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
@@ -7,6 +7,8 @@
#include <linux/mutex.h>
#include <linux/types.h>
+struct hclgevf_dev;
+
enum HCLGE_MBX_OPCODE {
HCLGE_MBX_RESET = 0x01, /* (VF -> PF) assert reset */
HCLGE_MBX_ASSERTING_RESET, /* (PF -> VF) PF is asserting reset */
@@ -233,7 +235,7 @@ struct hclgevf_mbx_arq_ring {
__le16 msg_q[HCLGE_MBX_MAX_ARQ_MSG_NUM][HCLGE_MBX_MAX_ARQ_MSG_SIZE];
};
-struct hclge_dev;
+struct hclge_vport;
#define HCLGE_MBX_OPCODE_MAX 256
struct hclge_mbx_ops_param {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_tqp_stats.h b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_tqp_stats.h
index a46350162ee8..7aff1a544cf4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_tqp_stats.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_tqp_stats.h
@@ -7,6 +7,8 @@
#include <linux/etherdevice.h>
#include "hnae3.h"
+struct hclge_comm_hw;
+
/* each tqp has TX & RX two queues */
#define HCLGE_COMM_QUEUE_PAIR_SIZE 2
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 133a054af6b7..557a5fa70d0a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -13,6 +13,9 @@
struct iphdr;
struct ipv6hdr;
+struct gre_base_hdr;
+struct tcphdr;
+struct udphdr;
enum hns3_nic_state {
HNS3_NIC_STATE_TESTING,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h
index bbee74cd8404..bceb61c791a1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h
@@ -8,8 +8,11 @@
#include <linux/net_tstamp.h>
#include <linux/types.h>
-struct hclge_dev;
struct ifreq;
+struct ethtool_ts_info;
+
+struct hnae3_handle;
+struct hclge_dev;
#define HCLGE_PTP_REG_OFFSET 0x29000
--
2.33.0
From: Jian Shen <[email protected]>
The expression '(k ^ ~v)' is exaclty '(k & v)', and
'(k & v) & k' is exaclty 'k & v'. So simplify the
expression for tcam key convert.
It also add necessary brackets for them.
Signed-off-by: Jian Shen <[email protected]>
Signed-off-by: Guangbin Huang <[email protected]>
---
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 495b639b0dc2..59bfacc687c9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -827,15 +827,10 @@ struct hclge_vf_vlan_cfg {
* Then for input key(k) and mask(v), we can calculate the value by
* the formulae:
* x = (~k) & v
- * y = (k ^ ~v) & k
+ * y = k & v
*/
-#define calc_x(x, k, v) (x = ~(k) & (v))
-#define calc_y(y, k, v) \
- do { \
- const typeof(k) _k_ = (k); \
- const typeof(v) _v_ = (v); \
- (y) = (_k_ ^ ~_v_) & (_k_); \
- } while (0)
+#define calc_x(x, k, v) ((x) = ~(k) & (v))
+#define calc_y(y, k, v) ((y) = (k) & (v))
#define HCLGE_MAC_STATS_FIELD_OFF(f) (offsetof(struct hclge_mac_stats, f))
#define HCLGE_STATS_READ(p, offset) (*(u64 *)((u8 *)(p) + (offset)))
--
2.33.0
From: Hao Chen <[email protected]>
Replace 4/6 with IP_VERSION_V4/6 to improve code readability.
Signed-off-by: Hao Chen <[email protected]>
Signed-off-by: Guangbin Huang <[email protected]>
---
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 12 ++++++------
drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 3 +++
2 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 39b75b68474c..bf573e0c0670 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1180,7 +1180,7 @@ static int hns3_set_tso(struct sk_buff *skb, u32 *paylen_fdop_ol4cs,
/* Software should clear the IPv4's checksum field when tso is
* needed.
*/
- if (l3.v4->version == 4)
+ if (l3.v4->version == IP_VERSION_IPV4)
l3.v4->check = 0;
/* tunnel packet */
@@ -1195,7 +1195,7 @@ static int hns3_set_tso(struct sk_buff *skb, u32 *paylen_fdop_ol4cs,
/* Software should clear the IPv4's checksum field when
* tso is needed.
*/
- if (l3.v4->version == 4)
+ if (l3.v4->version == IP_VERSION_IPV4)
l3.v4->check = 0;
}
@@ -1270,13 +1270,13 @@ static int hns3_get_l4_protocol(struct sk_buff *skb, u8 *ol4_proto,
l3.hdr = skb_inner_network_header(skb);
l4_hdr = skb_inner_transport_header(skb);
- if (l3.v6->version == 6) {
+ if (l3.v6->version == IP_VERSION_IPV6) {
exthdr = l3.hdr + sizeof(*l3.v6);
l4_proto_tmp = l3.v6->nexthdr;
if (l4_hdr != exthdr)
ipv6_skip_exthdr(skb, exthdr - skb->data,
&l4_proto_tmp, &frag_off);
- } else if (l3.v4->version == 4) {
+ } else if (l3.v4->version == IP_VERSION_IPV4) {
l4_proto_tmp = l3.v4->protocol;
}
@@ -1364,7 +1364,7 @@ static void hns3_set_outer_l2l3l4(struct sk_buff *skb, u8 ol4_proto,
static void hns3_set_l3_type(struct sk_buff *skb, union l3_hdr_info l3,
u32 *type_cs_vlan_tso)
{
- if (l3.v4->version == 4) {
+ if (l3.v4->version == IP_VERSION_IPV4) {
hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_S,
HNS3_L3T_IPV4);
@@ -1373,7 +1373,7 @@ static void hns3_set_l3_type(struct sk_buff *skb, union l3_hdr_info l3,
*/
if (skb_is_gso(skb))
hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3CS_B, 1);
- } else if (l3.v6->version == 6) {
+ } else if (l3.v6->version == IP_VERSION_IPV6) {
hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_S,
HNS3_L3T_IPV6);
}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 557a5fa70d0a..93041352ef19 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -217,6 +217,9 @@ enum hns3_nic_state {
#define HNS3_CQ_MODE_EQE 1U
#define HNS3_CQ_MODE_CQE 0U
+#define IP_VERSION_IPV4 0x4
+#define IP_VERSION_IPV6 0x6
+
enum hns3_pkt_l2t_type {
HNS3_L2_TYPE_UNICAST,
HNS3_L2_TYPE_MULTICAST,
--
2.33.0
The hdev->vport->vport_id is equal to hdev->vport[0].vport_id, so
delete unnecessary vf value judgement.
Signed-off-by: Guangbin Huang <[email protected]>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 6962a9d69cf8..b566c0d782ad 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -6487,8 +6487,6 @@ static bool hclge_is_cls_flower_active(struct hnae3_handle *handle)
static int hclge_fd_parse_ring_cookie(struct hclge_dev *hdev, u64 ring_cookie,
u16 *vport_id, u8 *action, u16 *queue_id)
{
- struct hclge_vport *vport = hdev->vport;
-
if (ring_cookie == RX_CLS_FLOW_DISC) {
*action = HCLGE_FD_ACTION_DROP_PACKET;
} else {
@@ -6506,7 +6504,7 @@ static int hclge_fd_parse_ring_cookie(struct hclge_dev *hdev, u64 ring_cookie,
return -EINVAL;
}
- *vport_id = vf ? hdev->vport[vf].vport_id : vport->vport_id;
+ *vport_id = hdev->vport[vf].vport_id;
tqps = hdev->vport[vf].nic.kinfo.num_tqps;
if (ring >= tqps) {
--
2.33.0
On Tue, Sep 27, 2022 at 07:12:02PM +0800, Guangbin Huang wrote:
> From: Jian Shen <[email protected]>
>
> The expression '(k ^ ~v)' is exaclty '(k & v)', and
> '(k & v) & k' is exaclty 'k & v'. So simplify the
> expression for tcam key convert.
>
> It also add necessary brackets for them.
>
> Signed-off-by: Jian Shen <[email protected]>
> Signed-off-by: Guangbin Huang <[email protected]>
> ---
> .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 11 +++--------
> 1 file changed, 3 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
> index 495b639b0dc2..59bfacc687c9 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
> @@ -827,15 +827,10 @@ struct hclge_vf_vlan_cfg {
> * Then for input key(k) and mask(v), we can calculate the value by
> * the formulae:
> * x = (~k) & v
> - * y = (k ^ ~v) & k
> + * y = k & v
> */
> -#define calc_x(x, k, v) (x = ~(k) & (v))
> -#define calc_y(y, k, v) \
> - do { \
> - const typeof(k) _k_ = (k); \
> - const typeof(v) _v_ = (v); \
> - (y) = (_k_ ^ ~_v_) & (_k_); \
> - } while (0)
> +#define calc_x(x, k, v) ((x) = ~(k) & (v))
> +#define calc_y(y, k, v) ((y) = (k) & (v))
Can you please explain why do you need special define for boolean AND?
Thanks
>
> #define HCLGE_MAC_STATS_FIELD_OFF(f) (offsetof(struct hclge_mac_stats, f))
> #define HCLGE_STATS_READ(p, offset) (*(u64 *)((u8 *)(p) + (offset)))
> --
> 2.33.0
>
On Tue, Sep 27, 2022 at 07:12:04PM +0800, Guangbin Huang wrote:
> From: Hao Chen <[email protected]>
>
> Replace 4/6 with IP_VERSION_V4/6 to improve code readability.
>
> Signed-off-by: Hao Chen <[email protected]>
> Signed-off-by: Guangbin Huang <[email protected]>
> ---
> drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 12 ++++++------
> drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 3 +++
> 2 files changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> index 39b75b68474c..bf573e0c0670 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> @@ -1180,7 +1180,7 @@ static int hns3_set_tso(struct sk_buff *skb, u32 *paylen_fdop_ol4cs,
> /* Software should clear the IPv4's checksum field when tso is
> * needed.
> */
> - if (l3.v4->version == 4)
> + if (l3.v4->version == IP_VERSION_IPV4)
> l3.v4->check = 0;
>
> /* tunnel packet */
> @@ -1195,7 +1195,7 @@ static int hns3_set_tso(struct sk_buff *skb, u32 *paylen_fdop_ol4cs,
> /* Software should clear the IPv4's checksum field when
> * tso is needed.
> */
> - if (l3.v4->version == 4)
> + if (l3.v4->version == IP_VERSION_IPV4)
> l3.v4->check = 0;
> }
>
> @@ -1270,13 +1270,13 @@ static int hns3_get_l4_protocol(struct sk_buff *skb, u8 *ol4_proto,
> l3.hdr = skb_inner_network_header(skb);
> l4_hdr = skb_inner_transport_header(skb);
>
> - if (l3.v6->version == 6) {
> + if (l3.v6->version == IP_VERSION_IPV6) {
> exthdr = l3.hdr + sizeof(*l3.v6);
> l4_proto_tmp = l3.v6->nexthdr;
> if (l4_hdr != exthdr)
> ipv6_skip_exthdr(skb, exthdr - skb->data,
> &l4_proto_tmp, &frag_off);
> - } else if (l3.v4->version == 4) {
> + } else if (l3.v4->version == IP_VERSION_IPV4) {
> l4_proto_tmp = l3.v4->protocol;
> }
>
> @@ -1364,7 +1364,7 @@ static void hns3_set_outer_l2l3l4(struct sk_buff *skb, u8 ol4_proto,
> static void hns3_set_l3_type(struct sk_buff *skb, union l3_hdr_info l3,
> u32 *type_cs_vlan_tso)
> {
> - if (l3.v4->version == 4) {
> + if (l3.v4->version == IP_VERSION_IPV4) {
> hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_S,
> HNS3_L3T_IPV4);
>
> @@ -1373,7 +1373,7 @@ static void hns3_set_l3_type(struct sk_buff *skb, union l3_hdr_info l3,
> */
> if (skb_is_gso(skb))
> hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3CS_B, 1);
> - } else if (l3.v6->version == 6) {
> + } else if (l3.v6->version == IP_VERSION_IPV6) {
> hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_S,
> HNS3_L3T_IPV6);
> }
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
> index 557a5fa70d0a..93041352ef19 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
> @@ -217,6 +217,9 @@ enum hns3_nic_state {
> #define HNS3_CQ_MODE_EQE 1U
> #define HNS3_CQ_MODE_CQE 0U
>
> +#define IP_VERSION_IPV4 0x4
> +#define IP_VERSION_IPV6 0x6
The more traditional way is to use sa_family_t sa_family and AF_XXX instead
of your .version variable.
Thanks
> +
> enum hns3_pkt_l2t_type {
> HNS3_L2_TYPE_UNICAST,
> HNS3_L2_TYPE_MULTICAST,
> --
> 2.33.0
>
Can you please explain why do you need special define for boolean AND?
we use '&', just define a bitwise AND, not define boolean AND.
On Tue, Sep 28, 2022 at 10:28:02AM +0800, Leon Romanovsky wrote:
>On Tue, Sep 27, 2022 at 07:12:02PM +0800, Guangbin Huang wrote:
>> From: Jian Shen <[email protected]>
>>
>> The expression '(k ^ ~v)' is exaclty '(k & v)', and '(k & v) & k' is
>> exaclty 'k & v'. So simplify the expression for tcam key convert.
>>
>> It also add necessary brackets for them.
>>
>> Signed-off-by: Jian Shen <[email protected]>
>> Signed-off-by: Guangbin Huang <[email protected]>
>> ---
>> .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 11 +++--------
>> 1 file changed, 3 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
>> b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
>> index 495b639b0dc2..59bfacc687c9 100644
>> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
>> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
>> @@ -827,15 +827,10 @@ struct hclge_vf_vlan_cfg {
>> * Then for input key(k) and mask(v), we can calculate the value by
>> * the formulae:
>> * x = (~k) & v
>> - * y = (k ^ ~v) & k
>> + * y = k & v
>> */
>> -#define calc_x(x, k, v) (x = ~(k) & (v)) -#define calc_y(y, k, v) \
>> - do { \
>> - const typeof(k) _k_ = (k); \
>> - const typeof(v) _v_ = (v); \
>> - (y) = (_k_ ^ ~_v_) & (_k_); \
>> - } while (0)
>> +#define calc_x(x, k, v) ((x) = ~(k) & (v)) #define calc_y(y, k, v)
>> +((y) = (k) & (v))
>
>Can you please explain why do you need special define for boolean AND?
>
>Thanks
we use '&', just define a bitwise AND, not define boolean AND.
>
>>
>> #define HCLGE_MAC_STATS_FIELD_OFF(f) (offsetof(struct
>> hclge_mac_stats, f)) #define HCLGE_STATS_READ(p, offset) (*(u64
>> *)((u8 *)(p) + (offset)))
>> --
>> 2.33.0
>>
>
-----?ʼ?ԭ??-----
??????: Leon Romanovsky <[email protected]>
????ʱ??: 2022??9??28?? 18:29
?ռ???: huangguangbin (A) <[email protected]>
????: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; shenjian (K) <[email protected]>; Lanhao (Lan) <[email protected]>
????: Re: [PATCH net-next 1/4] net: hns3: refine the tcam key convert handle
On Tue, Sep 27, 2022 at 07:12:02PM +0800, Guangbin Huang wrote:
> From: Jian Shen <[email protected]>
>
> The expression '(k ^ ~v)' is exaclty '(k & v)', and '(k & v) & k' is
> exaclty 'k & v'. So simplify the expression for tcam key convert.
>
> It also add necessary brackets for them.
>
> Signed-off-by: Jian Shen <[email protected]>
> Signed-off-by: Guangbin Huang <[email protected]>
> ---
> .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 11 +++--------
> 1 file changed, 3 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
> b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
> index 495b639b0dc2..59bfacc687c9 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
> @@ -827,15 +827,10 @@ struct hclge_vf_vlan_cfg {
> * Then for input key(k) and mask(v), we can calculate the value by
> * the formulae:
> * x = (~k) & v
> - * y = (k ^ ~v) & k
> + * y = k & v
> */
> -#define calc_x(x, k, v) (x = ~(k) & (v)) -#define calc_y(y, k, v) \
> - do { \
> - const typeof(k) _k_ = (k); \
> - const typeof(v) _v_ = (v); \
> - (y) = (_k_ ^ ~_v_) & (_k_); \
> - } while (0)
> +#define calc_x(x, k, v) ((x) = ~(k) & (v)) #define calc_y(y, k, v)
> +((y) = (k) & (v))
Can you please explain why do you need special define for boolean AND?
Thanks
>
> #define HCLGE_MAC_STATS_FIELD_OFF(f) (offsetof(struct
> hclge_mac_stats, f)) #define HCLGE_STATS_READ(p, offset) (*(u64
> *)((u8 *)(p) + (offset)))
> --
> 2.33.0
>
> Can you please explain why do you need special define for boolean AND?
we use '&', just define a bitwise AND, not define boolean AND.
Thanks.
On 2022/9/28 18:28, Leon Romanovsky wrote:
> On Tue, Sep 27, 2022 at 07:12:02PM +0800, Guangbin Huang wrote:
>> From: Jian Shen <[email protected]>
>>
>> The expression '(k ^ ~v)' is exaclty '(k & v)', and
>> '(k & v) & k' is exaclty 'k & v'. So simplify the
>> expression for tcam key convert.
>>
>> It also add necessary brackets for them.
>>
>> Signed-off-by: Jian Shen <[email protected]>
>> Signed-off-by: Guangbin Huang <[email protected]>
>> ---
>> .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 11 +++--------
>> 1 file changed, 3 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
>> index 495b639b0dc2..59bfacc687c9 100644
>> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
>> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
>> @@ -827,15 +827,10 @@ struct hclge_vf_vlan_cfg {
>> * Then for input key(k) and mask(v), we can calculate the value by
>> * the formulae:
>> * x = (~k) & v
>> - * y = (k ^ ~v) & k
>> + * y = k & v
>> */
>> -#define calc_x(x, k, v) (x = ~(k) & (v))
>> -#define calc_y(y, k, v) \
>> - do { \
>> - const typeof(k) _k_ = (k); \
>> - const typeof(v) _v_ = (v); \
>> - (y) = (_k_ ^ ~_v_) & (_k_); \
>> - } while (0)
>> +#define calc_x(x, k, v) ((x) = ~(k) & (v))
>> +#define calc_y(y, k, v) ((y) = (k) & (v))
>
> Can you please explain why do you need special define for boolean AND?
we use '&', just define a bitwise AND, not define boolean AND.
>
> Thanks
>
>>
>> #define HCLGE_MAC_STATS_FIELD_OFF(f) (offsetof(struct hclge_mac_stats, f))
>> #define HCLGE_STATS_READ(p, offset) (*(u64 *)((u8 *)(p) + (offset)))
>> --
>> 2.33.0
>>
> .
>