drivers/net: use sleep delay by default for Intel NICs

NICs uses different delays up to a second during their
configuration. It makes no sense to busy-wait so long wasting
CPU cycles and preventing any other threads to execute on the
same CPU core. These busy polling are the rudiments that came
from the kernel drivers where you can not sleep in interrupt
context, but as we're in userspace, we're able and should
sleep to allow other threads to run.
Delays never called on rx/tx path, so this should not affect
performance.

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/drivers/net/avf/Makefile b/drivers/net/avf/Makefile
index 0a142c1..aec6e4c 100644 (file)
--- a/drivers/net/avf/Makefile
+++ b/drivers/net/avf/Makefile
@@ -8,7 +8,7 @@ include $(RTE_SDK)/mk/rte.vars.mk
 #
 LIB = librte_pmd_avf.a
 
-CFLAGS += -O3 $(WERROR_FLAGS) -Wno-strict-aliasing
+CFLAGS += -O3 $(WERROR_FLAGS) -Wno-strict-aliasing -DALLOW_EXPERIMENTAL_API
 LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
 LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs -lrte_hash
 LDLIBS += -lrte_bus_pci

diff --git a/drivers/net/avf/base/avf_osdep.h b/drivers/net/avf/base/avf_osdep.h
index 9ef4596..442a5ac 100644 (file)
--- a/drivers/net/avf/base/avf_osdep.h
+++ b/drivers/net/avf/base/avf_osdep.h
@@ -93,8 +93,8 @@ typedef uint64_t        u64;
 #define avf_memset(a, b, c, d) memset((a), (b), (c))
 #define avf_memcpy(a, b, c, d) rte_memcpy((a), (b), (c))
 
-#define avf_usec_delay(x) rte_delay_us(x)
-#define avf_msec_delay(x) rte_delay_us(1000*(x))
+#define avf_usec_delay(x) rte_delay_us_sleep(x)
+#define avf_msec_delay(x) avf_usec_delay(1000 * (x))
 
 #define AVF_PCI_REG(reg)               rte_read32(reg)
 #define AVF_PCI_REG_ADDR(a, reg) \

diff --git a/drivers/net/avf/meson.build b/drivers/net/avf/meson.build
index 9a05ebb..2dfda9d 100644 (file)
--- a/drivers/net/avf/meson.build
+++ b/drivers/net/avf/meson.build
@@ -3,6 +3,8 @@
 
 cflags += ['-Wno-strict-aliasing']
 
+allow_experimental_apis = true
+
 subdir('base')
 objs = [base_objs]
 

diff --git a/drivers/net/e1000/Makefile b/drivers/net/e1000/Makefile
index 9c87e88..0ed6276 100644 (file)
--- a/drivers/net/e1000/Makefile
+++ b/drivers/net/e1000/Makefile
@@ -10,6 +10,7 @@ LIB = librte_pmd_e1000.a
 
 CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
 LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
 LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
 LDLIBS += -lrte_bus_pci

diff --git a/drivers/net/e1000/base/e1000_osdep.h b/drivers/net/e1000/base/e1000_osdep.h
index b886804..5958ea1 100644 (file)
--- a/drivers/net/e1000/base/e1000_osdep.h
+++ b/drivers/net/e1000/base/e1000_osdep.h
@@ -48,7 +48,7 @@
 
 #include "../e1000_logs.h"
 
-#define DELAY(x) rte_delay_us(x)
+#define DELAY(x) rte_delay_us_sleep(x)
 #define usec_delay(x) DELAY(x)
 #define usec_delay_irq(x) DELAY(x)
 #define msec_delay(x) DELAY(1000*(x))

diff --git a/drivers/net/e1000/meson.build b/drivers/net/e1000/meson.build
index cf45699..d0901d3 100644 (file)
--- a/drivers/net/e1000/meson.build
+++ b/drivers/net/e1000/meson.build
@@ -1,6 +1,8 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2017 Intel Corporation
 
+allow_experimental_apis = true
+
 subdir('base')
 objs = [base_objs]
 

diff --git a/drivers/net/i40e/base/i40e_osdep.h b/drivers/net/i40e/base/i40e_osdep.h
index 9d6ee4d..8a2d82a 100644 (file)
--- a/drivers/net/i40e/base/i40e_osdep.h
+++ b/drivers/net/i40e/base/i40e_osdep.h
@@ -205,9 +205,9 @@ struct i40e_spinlock {
 #define i40e_memcpy(a, b, c, d) rte_memcpy((a), (b), (c))
 
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
-#define DELAY(x) rte_delay_us(x)
-#define i40e_usec_delay(x) rte_delay_us(x)
-#define i40e_msec_delay(x) rte_delay_us(1000*(x))
+#define DELAY(x) rte_delay_us_sleep(x)
+#define i40e_usec_delay(x) DELAY(x)
+#define i40e_msec_delay(x) DELAY(1000 * (x))
 #define udelay(x) DELAY(x)
 #define msleep(x) DELAY(1000*(x))
 #define usleep_range(min, max) msleep(DIV_ROUND_UP(min, 1000))

diff --git a/drivers/net/ifc/base/ifcvf_osdep.h b/drivers/net/ifc/base/ifcvf_osdep.h
index cf151ef..6aef25e 100644 (file)
--- a/drivers/net/ifc/base/ifcvf_osdep.h
+++ b/drivers/net/ifc/base/ifcvf_osdep.h
@@ -17,7 +17,7 @@
 #define DEBUGOUT(S, args...)    RTE_LOG(DEBUG, PMD, S, ##args)
 #define STATIC                  static
 
-#define msec_delay     rte_delay_ms
+#define msec_delay(x)  rte_delay_us_sleep(1000 * (x))
 
 #define IFCVF_READ_REG8(reg)           rte_read8(reg)
 #define IFCVF_WRITE_REG8(val, reg)     rte_write8((val), (reg))

diff --git a/drivers/net/ixgbe/base/ixgbe_osdep.h b/drivers/net/ixgbe/base/ixgbe_osdep.h
index e648ea4..ea8dc1c 100644 (file)
--- a/drivers/net/ixgbe/base/ixgbe_osdep.h
+++ b/drivers/net/ixgbe/base/ixgbe_osdep.h
@@ -21,7 +21,7 @@
 
 #define ASSERT(x) if(!(x)) rte_panic("IXGBE: x")
 
-#define DELAY(x) rte_delay_us(x)
+#define DELAY(x) rte_delay_us_sleep(x)
 #define usec_delay(x) DELAY(x)
 #define msec_delay(x) DELAY(1000*(x))
 

diff --git a/drivers/net/ixgbe/meson.build b/drivers/net/ixgbe/meson.build
index 02d5ef5..544a141 100644 (file)
--- a/drivers/net/ixgbe/meson.build
+++ b/drivers/net/ixgbe/meson.build
@@ -5,10 +5,11 @@ version = 2
 
 cflags += ['-DRTE_LIBRTE_IXGBE_BYPASS']
 
+allow_experimental_apis = true
+
 subdir('base')
 objs = [base_objs]
 
-allow_experimental_apis = true
 sources = files(
        'ixgbe_82599_bypass.c',
        'ixgbe_bypass.c',