search for: experimental_zcopytx

....com> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 2d9df786a9d3..21e0805e5e60 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -36,7 +36,7 @@ #include "vhost.h" -static int experimental_zcopytx = 1; +static int experimental_zcopytx = 0; module_param(experimental_zcopytx, int, 0444); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.18.1

...+++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index 9eda69e..bbb522a 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -31,7 +31,9 @@ > #include "vhost.h" > > static int experimental_zcopytx = 1; > +static int busyloop_timeout = 50; > module_param(experimental_zcopytx, int, 0444); > +module_param(busyloop_timeout, int, 0444); Pls add a description, including the units and the special value 0. > MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" >...

...+++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index 9eda69e..bbb522a 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -31,7 +31,9 @@ > #include "vhost.h" > > static int experimental_zcopytx = 1; > +static int busyloop_timeout = 50; > module_param(experimental_zcopytx, int, 0444); > +module_param(busyloop_timeout, int, 0444); Pls add a description, including the units and the special value 0. > MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" >...

....ni at intel.com> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index f744eeb..e6d5620 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -31,7 +31,7 @@ #include "vhost.h" static int experimental_zcopytx = 1; -module_param(experimental_zcopytx, int, 0444); +module_param(experimental_zcopytx, int, S_IRUSR | S_IRGRP | S_IROTH); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.9.2

....org> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index d57ebdd616d9..247e5585af5d 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -35,7 +35,7 @@ #include "vhost.h" -static int experimental_zcopytx = 1; +static int experimental_zcopytx = 0; module_param(experimental_zcopytx, int, 0444); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.20.1

....org> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index df51a35cf537..8beacbee2553 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -36,7 +36,7 @@ #include "vhost.h" -static int experimental_zcopytx = 1; +static int experimental_zcopytx = 0; module_param(experimental_zcopytx, int, 0444); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.20.1

....org> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 39155d7cc894..ae704658b528 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -36,7 +36,7 @@ #include "vhost.h" -static int experimental_zcopytx = 1; +static int experimental_zcopytx = 0; module_param(experimental_zcopytx, int, 0444); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.20.1

....org> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index b40e8ded49c6..4d11152e60c1 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -35,7 +35,7 @@ #include "vhost.h" -static int experimental_zcopytx = 1; +static int experimental_zcopytx = 0; module_param(experimental_zcopytx, int, 0444); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.20.1

....org> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 681d0eade82f..75e1089dfb01 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -30,7 +30,7 @@ #include "vhost.h" -static int experimental_zcopytx = 1; +static int experimental_zcopytx = 0; module_param(experimental_zcopytx, int, 0444); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.20.1

....org> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 645b2197930e..f46317135224 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -30,7 +30,7 @@ #include "vhost.h" -static int experimental_zcopytx = 1; +static int experimental_zcopytx = 0; module_param(experimental_zcopytx, int, 0444); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.20.1

....ni at intel.com> --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index f744eeb..e6d5620 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -31,7 +31,7 @@ #include "vhost.h" static int experimental_zcopytx = 1; -module_param(experimental_zcopytx, int, 0444); +module_param(experimental_zcopytx, int, S_IRUSR | S_IRGRP | S_IROTH); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); -- 2.9.2

This path introduces a helper which can give a hint for whether or not there's a work queued in the work list. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/vhost.c | 6 ++++++ drivers/vhost/vhost.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index eec2f11..d42d11e 100644 --- a/drivers/vhost/vhost.c +++

This path introduces a helper which can give a hint for whether or not there's a work queued in the work list. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/vhost.c | 6 ++++++ drivers/vhost/vhost.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index eec2f11..d42d11e 100644 --- a/drivers/vhost/vhost.c +++

...redhat.com> --- drivers/vhost/net.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 9eda69e..bbb522a 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -31,7 +31,9 @@ #include "vhost.h" static int experimental_zcopytx = 1; +static int busyloop_timeout = 50; module_param(experimental_zcopytx, int, 0444); +module_param(busyloop_timeout, int, 0444); MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" " 1 -Enable; 0 - Disable"); @@ -287,12 +289,23 @@ static...

>From: Shirley Ma <mashirle at us.ibm.com> This adds experimental zero copy support in vhost-net, disabled by default. To enable, set experimental_zcopytx module option to 1. This patch maintains the outstanding userspace buffers in the sequence it is delivered to vhost. The outstanding userspace buffers will be marked as done once the lower device buffers DMA has finished. This is monitored through last reference of kfree_skb callback. Two buffer i...

>From: Shirley Ma <mashirle at us.ibm.com> This adds experimental zero copy support in vhost-net, disabled by default. To enable, set experimental_zcopytx module option to 1. This patch maintains the outstanding userspace buffers in the sequence it is delivered to vhost. The outstanding userspace buffers will be marked as done once the lower device buffers DMA has finished. This is monitored through last reference of kfree_skb callback. Two buffer i...

...d, 19 insertions(+) >> >> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c >> index 9eda69e..bbb522a 100644 >> --- a/drivers/vhost/net.c >> +++ b/drivers/vhost/net.c >> @@ -31,7 +31,9 @@ >> #include "vhost.h" >> >> static int experimental_zcopytx = 1; >> +static int busyloop_timeout = 50; >> module_param(experimental_zcopytx, int, 0444); >> +module_param(busyloop_timeout, int, 0444); > Pls add a description, including the units and the special > value 0. Ok. > >> MODULE_PARM_DESC(experimental_zcopytx, &q...

...Tsirkin <mst at redhat.com> --- drivers/vhost/net.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 8dae2f7..dce5c58 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -48,15 +48,15 @@ MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" * status internally; used for zerocopy tx only. */ /* Lower device DMA failed */ -#define VHOST_DMA_FAILED_LEN 3 +#define VHOST_DMA_FAILED_LEN ((__force __virtio32)3) /* Lower device DMA done */ -#define VHOST_DMA_DONE_LEN 2 +#define VHOST_DMA_DONE_LEN ((__fo...

...Tsirkin <mst at redhat.com> --- drivers/vhost/net.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 8dae2f7..dce5c58 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -48,15 +48,15 @@ MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" * status internally; used for zerocopy tx only. */ /* Lower device DMA failed */ -#define VHOST_DMA_FAILED_LEN 3 +#define VHOST_DMA_FAILED_LEN ((__force __virtio32)3) /* Lower device DMA done */ -#define VHOST_DMA_DONE_LEN 2 +#define VHOST_DMA_DONE_LEN ((__fo...

...ang <jasowang at redhat.com> --- drivers/vhost/net.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 8dae2f7..dce5c58 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -48,15 +48,15 @@ MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;" * status internally; used for zerocopy tx only. */ /* Lower device DMA failed */ -#define VHOST_DMA_FAILED_LEN 3 +#define VHOST_DMA_FAILED_LEN ((__force __virtio32)3) /* Lower device DMA done */ -#define VHOST_DMA_DONE_LEN 2 +#define VHOST_DMA_DONE_LEN ((__fo...