[dpdk-dev] [PATCH 33/37] net/sfc/base: simplify the code to parse RSS hash type

[Andrew Rybchenko]

From: Ivan Malov <Ivan.Malov at oktetlabs.ru>

RSS mode bits can be accessed a lot easier in the hash
type value provided that the variable type is uint32_t.
The macro helper can be removed to enhance readability.

Signed-off-by: Ivan Malov <Ivan.Malov at oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
 drivers/net/sfc/base/ef10_rx.c | 24 ++++++++++--------------
 drivers/net/sfc/base/efx.h     |  2 +-
 2 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/drivers/net/sfc/base/ef10_rx.c b/drivers/net/sfc/base/ef10_rx.c
index 17678b517..1444eca81 100644
--- a/drivers/net/sfc/base/ef10_rx.c
+++ b/drivers/net/sfc/base/ef10_rx.c
@@ -377,12 +377,6 @@ efx_mcdi_rss_context_set_flags(
 	if (encp->enc_rx_scale_additional_modes_supported == B_FALSE)
 		modes = 0;
 
-#define	EXTRACT_RSS_MODE(_type, _class)		\
-	(EFX_EXTRACT_NATIVE(_type, 0, 31,	\
-	EFX_LOW_BIT(EFX_RX_CLASS_##_class),	\
-	EFX_HIGH_BIT(EFX_RX_CLASS_##_class)) &	\
-	EFX_MASK32(EFX_RX_CLASS_##_class))
-
 	MCDI_IN_POPULATE_DWORD_10(req, RSS_CONTEXT_SET_FLAGS_IN_FLAGS,
 	    RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV4_EN,
 	    ((type & type_ipv4) == type_ipv4) ? 1 : 0,
@@ -393,19 +387,21 @@ efx_mcdi_rss_context_set_flags(
 	    RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV6_EN,
 	    ((type & type_ipv6_tcp) == type_ipv6_tcp) ? 1 : 0,
 	    RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV4_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV4_TCP),
+	    (modes >> EFX_RX_CLASS_IPV4_TCP_LBN) &
+	    EFX_MASK32(EFX_RX_CLASS_IPV4_TCP),
 	    RSS_CONTEXT_SET_FLAGS_IN_UDP_IPV4_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV4_UDP),
+	    (modes >> EFX_RX_CLASS_IPV4_UDP_LBN) &
+	    EFX_MASK32(EFX_RX_CLASS_IPV4_UDP),
 	    RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV4_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV4),
+	    (modes >> EFX_RX_CLASS_IPV4_LBN) & EFX_MASK32(EFX_RX_CLASS_IPV4),
 	    RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV6_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV6_TCP),
+	    (modes >> EFX_RX_CLASS_IPV6_TCP_LBN) &
+	    EFX_MASK32(EFX_RX_CLASS_IPV6_TCP),
 	    RSS_CONTEXT_SET_FLAGS_IN_UDP_IPV6_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV6_UDP),
+	    (modes >> EFX_RX_CLASS_IPV6_UDP_LBN) &
+	    EFX_MASK32(EFX_RX_CLASS_IPV6_UDP),
 	    RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV6_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV6));
-
-#undef EXTRACT_RSS_MODE
+	    (modes >> EFX_RX_CLASS_IPV6_LBN) & EFX_MASK32(EFX_RX_CLASS_IPV6));
 
 	efx_mcdi_execute(enp, &req);
 
diff --git a/drivers/net/sfc/base/efx.h b/drivers/net/sfc/base/efx.h
index de62b7d50..62c56e6e1 100644
--- a/drivers/net/sfc/base/efx.h
+++ b/drivers/net/sfc/base/efx.h
@@ -2267,7 +2267,7 @@ typedef enum efx_rx_hash_alg_e {
  *  - a combination of legacy flags
  *  - a combination of EFX_RX_HASH() flags
  */
-typedef unsigned int efx_rx_hash_type_t;
+typedef uint32_t efx_rx_hash_type_t;
 
 typedef enum efx_rx_hash_support_e {
 	EFX_RX_HASH_UNAVAILABLE = 0,	/* Hardware hash not inserted */
-- 
2.17.1