diff mbox

[dpdk-dev,v2,1/2] eal/linux: support external Rx interrupt

Message ID 1489496589-26177-2-git-send-email-shahafs@mellanox.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers

Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Shahaf Shuler March 14, 2017, 1:03 p.m. UTC 
  Prior to this patch only UIO/VFIO interrupt handlers types were supported.
This patch adds support for the external interrupt handler type, allowing
external drivers to set their own fds with specific interrupt handlers.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
---
 lib/librte_eal/linuxapp/eal/eal_interrupts.c       | 33 ++++++++++++++--------
 .../linuxapp/eal/include/exec-env/rte_interrupts.h |  9 ++++++
 lib/librte_eal/linuxapp/eal/rte_eal_version.map    |  7 +++++
 3 files changed, 37 insertions(+), 12 deletions(-)

Comments

Yongseok Koh March 14, 2017, 4:38 p.m. UTC | #1 
> On Mar 14, 2017, at 6:03 AM, Shahaf Shuler <shahafs@mellanox.com> wrote:
> 
> Prior to this patch only UIO/VFIO interrupt handlers types were supported.
> This patch adds support for the external interrupt handler type, allowing
> external drivers to set their own fds with specific interrupt handlers.
> 
> Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>

Acked-by: Yongseok Koh <yskoh@mellanox.com>

Regards,
Yongseok
Ferruh Yigit March 14, 2017, 6:06 p.m. UTC | #2 
On 3/14/2017 4:38 PM, Yongseok Koh wrote:
> 
>> On Mar 14, 2017, at 6:03 AM, Shahaf Shuler <shahafs@mellanox.com> wrote:
>>
>> Prior to this patch only UIO/VFIO interrupt handlers types were supported.
>> This patch adds support for the external interrupt handler type, allowing
>> external drivers to set their own fds with specific interrupt handlers.
>>
>> Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
> 
> Acked-by: Yongseok Koh <yskoh@mellanox.com>

Series applied to dpdk-next-net/master, thanks.
diff mbox

Patch

diff --git a/lib/librte_eal/linuxapp/eal/eal_interrupts.c b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
index 92a19cb..c19eb8c 100644
--- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
+++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
@@ -939,6 +939,8 @@  static __attribute__((noreturn)) void *
 		bytes_read = sizeof(buf.vfio_intr_count);
 		break;
 #endif
+	case RTE_INTR_HANDLE_EXT:
+		return;
 	default:
 		bytes_read = 1;
 		RTE_LOG(INFO, EAL, "unexpected intr type\n");
@@ -1167,6 +1169,24 @@  static __attribute__((noreturn)) void *
 	return rc;
 }
 
+void
+rte_intr_free_epoll_fd(struct rte_intr_handle *intr_handle)
+{
+	uint32_t i;
+	struct rte_epoll_event *rev;
+
+	for (i = 0; i < intr_handle->nb_efd; i++) {
+		rev = &intr_handle->elist[i];
+		if (rev->status == RTE_EPOLL_INVALID)
+			continue;
+		if (rte_epoll_ctl(rev->epfd, EPOLL_CTL_DEL, rev->fd, rev)) {
+			/* force free if the entry valid */
+			eal_epoll_data_safe_free(rev);
+			rev->status = RTE_EPOLL_INVALID;
+		}
+	}
+}
+
 int
 rte_intr_efd_enable(struct rte_intr_handle *intr_handle, uint32_t nb_efd)
 {
@@ -1202,19 +1222,8 @@  static __attribute__((noreturn)) void *
 rte_intr_efd_disable(struct rte_intr_handle *intr_handle)
 {
 	uint32_t i;
-	struct rte_epoll_event *rev;
-
-	for (i = 0; i < intr_handle->nb_efd; i++) {
-		rev = &intr_handle->elist[i];
-		if (rev->status == RTE_EPOLL_INVALID)
-			continue;
-		if (rte_epoll_ctl(rev->epfd, EPOLL_CTL_DEL, rev->fd, rev)) {
-			/* force free if the entry valid */
-			eal_epoll_data_safe_free(rev);
-			rev->status = RTE_EPOLL_INVALID;
-		}
-	}
 
+	rte_intr_free_epoll_fd(intr_handle);
 	if (intr_handle->max_intr > intr_handle->nb_efd) {
 		for (i = 0; i < intr_handle->nb_efd; i++)
 			close(intr_handle->efds[i]);
diff --git a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
index d459bf4..735d307 100644
--- a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
+++ b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
@@ -171,6 +171,15 @@  struct rte_intr_handle {
 		int epfd, int op, unsigned int vec, void *data);
 
 /**
+ * It deletes registered eventfds.
+ *
+ * @param intr_handle
+ *   Pointer to the interrupt handle.
+ */
+void
+rte_intr_free_epoll_fd(struct rte_intr_handle *intr_handle);
+
+/**
  * It enables the packet I/O interrupt event if it's necessary.
  * It creates event fd for each interrupt vector when MSIX is used,
  * otherwise it multiplexes a single event fd.
diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
index 9c134b4..905d8de 100644
--- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
@@ -186,3 +186,10 @@  DPDK_17.02 {
 	rte_bus_unregister;
 
 } DPDK_16.11;
+
+DPDK_17.05 {
+	global:
+
+	rte_intr_free_epoll_fd;
+
+} DPDK_17.02;