t/io_uring: add test support for pre mapping DMA buffers

[fio.git] / engines / libaio.c

diff --git a/engines/libaio.c b/engines/libaio.c
index 8cf560c52977390fdca0034a9bdfc9dff39f84f6..dd655355ba6995725c82f27ec3264690d92c3709 100644 (file)
--- a/engines/libaio.c
+++ b/engines/libaio.c
@@ -56,12 +56,21 @@ struct libaio_data {
 };
 
 struct libaio_options {
-       void *pad;
+       struct thread_data *td;
        unsigned int userspace_reap;
        struct cmdprio cmdprio;
        unsigned int nowait;
 };
 
+static int str_cmdprio_bssplit_cb(void *data, const char *input)
+{
+       struct libaio_options *o = data;
+       struct thread_data *td = o->td;
+       struct cmdprio *cmdprio = &o->cmdprio;
+
+       return fio_cmdprio_bssplit_parse(td, input, cmdprio);
+}
+
 static struct fio_option options[] = {
        {
                .name   = "userspace_reap",
@@ -87,6 +96,46 @@ static struct fio_option options[] = {
                .category = FIO_OPT_C_ENGINE,
                .group  = FIO_OPT_G_LIBAIO,
        },
+       {
+               .name   = "cmdprio_class",
+               .lname  = "Asynchronous I/O priority class",
+               .type   = FIO_OPT_INT,
+               .off1   = offsetof(struct libaio_options,
+                                  cmdprio.class[DDIR_READ]),
+               .off2   = offsetof(struct libaio_options,
+                                  cmdprio.class[DDIR_WRITE]),
+               .help   = "Set asynchronous IO priority class",
+               .minval = IOPRIO_MIN_PRIO_CLASS + 1,
+               .maxval = IOPRIO_MAX_PRIO_CLASS,
+               .interval = 1,
+               .category = FIO_OPT_C_ENGINE,
+               .group  = FIO_OPT_G_LIBAIO,
+       },
+       {
+               .name   = "cmdprio",
+               .lname  = "Asynchronous I/O priority level",
+               .type   = FIO_OPT_INT,
+               .off1   = offsetof(struct libaio_options,
+                                  cmdprio.level[DDIR_READ]),
+               .off2   = offsetof(struct libaio_options,
+                                  cmdprio.level[DDIR_WRITE]),
+               .help   = "Set asynchronous IO priority level",
+               .minval = IOPRIO_MIN_PRIO,
+               .maxval = IOPRIO_MAX_PRIO,
+               .interval = 1,
+               .category = FIO_OPT_C_ENGINE,
+               .group  = FIO_OPT_G_LIBAIO,
+       },
+       {
+               .name   = "cmdprio_bssplit",
+               .lname  = "Priority percentage block size split",
+               .type   = FIO_OPT_STR_ULL,
+               .cb     = str_cmdprio_bssplit_cb,
+               .off1   = offsetof(struct libaio_options, cmdprio.bssplit),
+               .help   = "Set priority percentages for different block sizes",
+               .category = FIO_OPT_C_ENGINE,
+               .group  = FIO_OPT_G_LIBAIO,
+       },
 #else
        {
                .name   = "cmdprio_percentage",
@@ -94,6 +143,24 @@ static struct fio_option options[] = {
                .type   = FIO_OPT_UNSUPPORTED,
                .help   = "Your platform does not support I/O priority classes",
        },
+       {
+               .name   = "cmdprio_class",
+               .lname  = "Asynchronous I/O priority class",
+               .type   = FIO_OPT_UNSUPPORTED,
+               .help   = "Your platform does not support I/O priority classes",
+       },
+       {
+               .name   = "cmdprio",
+               .lname  = "Asynchronous I/O priority level",
+               .type   = FIO_OPT_UNSUPPORTED,
+               .help   = "Your platform does not support I/O priority classes",
+       },
+       {
+               .name   = "cmdprio_bssplit",
+               .lname  = "Priority percentage block size split",
+               .type   = FIO_OPT_UNSUPPORTED,
+               .help   = "Your platform does not support I/O priority classes",
+       },
 #endif
        {
                .name   = "nowait",
@@ -142,12 +209,29 @@ static void fio_libaio_prio_prep(struct thread_data *td, struct io_u *io_u)
 {
        struct libaio_options *o = td->eo;
        struct cmdprio *cmdprio = &o->cmdprio;
-       unsigned int p = cmdprio->percentage[io_u->ddir];
+       enum fio_ddir ddir = io_u->ddir;
+       unsigned int p = fio_cmdprio_percentage(cmdprio, io_u);
+       unsigned int cmdprio_value =
+               ioprio_value(cmdprio->class[ddir], cmdprio->level[ddir]);
 
        if (p && rand_between(&td->prio_state, 0, 99) < p) {
-               io_u->iocb.aio_reqprio = ioprio_value(IOPRIO_CLASS_RT, 0);
+               io_u->ioprio = cmdprio_value;
+               io_u->iocb.aio_reqprio = cmdprio_value;
                io_u->iocb.u.c.flags |= IOCB_FLAG_IOPRIO;
-               io_u->flags |= IO_U_F_PRIORITY;
+               if (!td->ioprio || cmdprio_value < td->ioprio) {
+                       /*
+                        * The async IO priority is higher (has a lower value)
+                        * than the default context priority.
+                        */
+                       io_u->flags |= IO_U_F_HIGH_PRIO;
+               }
+       } else if (td->ioprio && td->ioprio < cmdprio_value) {
+               /*
+                * The IO will be executed with the default context priority,
+                * and this priority is higher (has a lower value) than the
+                * async IO priority.
+                */
+               io_u->flags |= IO_U_F_HIGH_PRIO;
        }
 }