diff mbox

[dpdk-dev,1/2] eal: clean up interrupt handle

Message ID 1487801822-30938-2-git-send-email-qi.z.zhang@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers

Checks

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

Commit Message

Qi Zhang Feb. 22, 2017, 10:17 p.m. UTC 
  The patch change the prototype of callback function
(rte_intr_callback_fn) by removing the unnecessary parameter.
Also with this change we can keep content of item in intr_source
read only, the inappropriate modifciation(like get_max_intr) can
be avoid.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/bnxt/bnxt_irq.c                    |  3 +-
 drivers/net/e1000/em_ethdev.c                  |  8 ++----
 drivers/net/e1000/igb_ethdev.c                 | 15 ++++------
 drivers/net/enic/enic_main.c                   |  3 +-
 drivers/net/fm10k/fm10k_ethdev.c               | 12 +++-----
 drivers/net/i40e/i40e_ethdev.c                 |  8 ++----
 drivers/net/i40e/i40e_ethdev_vf.c              |  5 ++--
 drivers/net/ixgbe/ixgbe_ethdev.c               | 14 ++++-----
 drivers/net/nfp/nfp_net.c                      |  6 ++--
 drivers/net/qede/qede_ethdev.c                 |  4 +--
 drivers/net/sfc/sfc_intr.c                     | 10 ++++---
 drivers/net/virtio/virtio_ethdev.c             |  5 ++--
 lib/librte_eal/common/include/rte_interrupts.h |  3 +-
 lib/librte_eal/linuxapp/eal/eal_alarm.c        |  5 ++--
 lib/librte_eal/linuxapp/eal/eal_interrupts.c   | 39 ++++----------------------
 15 files changed, 45 insertions(+), 95 deletions(-)

Comments

Jan Blunck Feb. 27, 2017, 4:19 p.m. UTC | #1 
On Wed, Feb 22, 2017 at 11:17 PM, Qi Zhang <qi.z.zhang@intel.com> wrote:
> --- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
> +++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
> @@ -278,29 +278,6 @@ vfio_disable_msi(const struct rte_intr_handle *intr_handle) {
>         return ret;
>  }
>
> -static int
> -get_max_intr(const struct rte_intr_handle *intr_handle)
> -{
> -       struct rte_intr_source *src;
> -
> -       TAILQ_FOREACH(src, &intr_sources, next) {
> -               if (src->intr_handle.fd != intr_handle->fd)
> -                       continue;
> -
> -               if (src->intr_handle.max_intr < intr_handle->max_intr)
> -                       src->intr_handle.max_intr = intr_handle->max_intr;
> -               if (!src->intr_handle.max_intr)
> -                       src->intr_handle.max_intr = 1;
> -               else if (src->intr_handle.max_intr > RTE_MAX_RXTX_INTR_VEC_ID)
> -                       src->intr_handle.max_intr
> -                               = RTE_MAX_RXTX_INTR_VEC_ID + 1;
> -
> -               return src->intr_handle.max_intr;
> -       }
> -
> -       return -1;
> -}
> -
>  /* enable MSI-X interrupts */
>  static int
>  vfio_enable_msix(const struct rte_intr_handle *intr_handle) {
> @@ -313,15 +290,10 @@ vfio_enable_msix(const struct rte_intr_handle *intr_handle) {
>
>         irq_set = (struct vfio_irq_set *) irq_set_buf;
>         irq_set->argsz = len;
> -
> -       ret = get_max_intr(intr_handle);
> -       if (ret < 0) {
> -               RTE_LOG(ERR, EAL, "Invalid number of MSI-X irqs for fd %d\n",
> -                       intr_handle->fd);
> -               return -1;
> -       }
> -
> -       irq_set->count = ret;
> +       /* 0 < irq_set->count < RTE_MAX_RXTX_INTR_VEC_ID + 1 */
> +       irq_set->count = intr_handle->max_intr ?
> +               (intr_handle->max_intr > RTE_MAX_RXTX_INTR_VEC_ID + 1 ?
> +               RTE_MAX_RXTX_INTR_VEC_ID + 1 : intr_handle->max_intr) : 1;
>         irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_TRIGGER;
>         irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
>         irq_set->start = 0;

The changes (to not change the interrupt handle in intr_sources) seems
to be unrelated to the API changes. Can you split this into two
commits, please?

Also I'm not 100% convinced that the low-level drivers should make
extensive use of the ethdev's const intr_handle. I believe that the
ethdev ops might be incomplete in that sense that it would be better
to add an rx_intr_ctl() operation to the ethdev ops structure and pass
control the the low-level device.
Qi Zhang Feb. 28, 2017, 1:22 a.m. UTC | #2 
HI Jan:

> -----Original Message-----

> From: jblunck@gmail.com [mailto:jblunck@gmail.com] On Behalf Of Jan Blunck

> Sent: Tuesday, February 28, 2017 12:19 AM

> To: Zhang, Qi Z <qi.z.zhang@intel.com>

> Cc: Thomas Monjalon <thomas.monjalon@6wind.com>; dev <dev@dpdk.org>

> Subject: Re: [dpdk-dev] [PATCH 1/2] eal: clean up interrupt handle

> 

> On Wed, Feb 22, 2017 at 11:17 PM, Qi Zhang <qi.z.zhang@intel.com> wrote:

> > --- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c

> > +++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c

> > @@ -278,29 +278,6 @@ vfio_disable_msi(const struct rte_intr_handle

> *intr_handle) {

> >         return ret;

> >  }

> >

> > -static int

> > -get_max_intr(const struct rte_intr_handle *intr_handle) -{

> > -       struct rte_intr_source *src;

> > -

> > -       TAILQ_FOREACH(src, &intr_sources, next) {

> > -               if (src->intr_handle.fd != intr_handle->fd)

> > -                       continue;

> > -

> > -               if (src->intr_handle.max_intr < intr_handle->max_intr)

> > -                       src->intr_handle.max_intr =

> intr_handle->max_intr;

> > -               if (!src->intr_handle.max_intr)

> > -                       src->intr_handle.max_intr = 1;

> > -               else if (src->intr_handle.max_intr >

> RTE_MAX_RXTX_INTR_VEC_ID)

> > -                       src->intr_handle.max_intr

> > -                               = RTE_MAX_RXTX_INTR_VEC_ID + 1;

> > -

> > -               return src->intr_handle.max_intr;

> > -       }

> > -

> > -       return -1;

> > -}

> > -

> >  /* enable MSI-X interrupts */

> >  static int

> >  vfio_enable_msix(const struct rte_intr_handle *intr_handle) { @@

> > -313,15 +290,10 @@ vfio_enable_msix(const struct rte_intr_handle

> > *intr_handle) {

> >

> >         irq_set = (struct vfio_irq_set *) irq_set_buf;

> >         irq_set->argsz = len;

> > -

> > -       ret = get_max_intr(intr_handle);

> > -       if (ret < 0) {

> > -               RTE_LOG(ERR, EAL, "Invalid number of MSI-X irqs for

> fd %d\n",

> > -                       intr_handle->fd);

> > -               return -1;

> > -       }

> > -

> > -       irq_set->count = ret;

> > +       /* 0 < irq_set->count < RTE_MAX_RXTX_INTR_VEC_ID + 1 */

> > +       irq_set->count = intr_handle->max_intr ?

> > +               (intr_handle->max_intr > RTE_MAX_RXTX_INTR_VEC_ID

> + 1 ?

> > +               RTE_MAX_RXTX_INTR_VEC_ID + 1 :

> intr_handle->max_intr)

> > + : 1;

> >         irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |

> VFIO_IRQ_SET_ACTION_TRIGGER;

> >         irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;

> >         irq_set->start = 0;

> 

> The changes (to not change the interrupt handle in intr_sources) seems to be

> unrelated to the API changes. Can you split this into two commits, please?


Yes, it's better to split this.
> 

> Also I'm not 100% convinced that the low-level drivers should make extensive

> use of the ethdev's const intr_handle. I believe that the ethdev ops might be

> incomplete in that sense that it would be better to add an rx_intr_ctl()

> operation to the ethdev ops structure and pass control the the low-level device.

I agree your point, abstract the interrupt control should be good, but I want keep this
patch's scope to only focus on eal interrupt layer but not include the ethdev layer, 
there could be a separate patch focus on that.

Thanks
Qi
diff mbox

Patch

diff --git a/drivers/net/bnxt/bnxt_irq.c b/drivers/net/bnxt/bnxt_irq.c
index e93585a..20e17ff 100644
--- a/drivers/net/bnxt/bnxt_irq.c
+++ b/drivers/net/bnxt/bnxt_irq.c
@@ -45,8 +45,7 @@ 
  * Interrupts
  */
 
-static void bnxt_int_handler(struct rte_intr_handle *handle __rte_unused,
-			     void *param)
+static void bnxt_int_handler(void *param)
 {
 	struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
 	struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
diff --git a/drivers/net/e1000/em_ethdev.c b/drivers/net/e1000/em_ethdev.c
index 4066ef9..fff0874 100644
--- a/drivers/net/e1000/em_ethdev.c
+++ b/drivers/net/e1000/em_ethdev.c
@@ -85,8 +85,7 @@  static int eth_em_rxq_interrupt_setup(struct rte_eth_dev *dev);
 static int eth_em_interrupt_get_status(struct rte_eth_dev *dev);
 static int eth_em_interrupt_action(struct rte_eth_dev *dev,
 				   struct rte_intr_handle *handle);
-static void eth_em_interrupt_handler(struct rte_intr_handle *handle,
-							void *param);
+static void eth_em_interrupt_handler(void *param);
 
 static int em_hw_init(struct e1000_hw *hw);
 static int em_hardware_init(struct e1000_hw *hw);
@@ -1646,13 +1645,12 @@  eth_em_interrupt_action(struct rte_eth_dev *dev,
  *  void
  */
 static void
-eth_em_interrupt_handler(struct rte_intr_handle *handle,
-			 void *param)
+eth_em_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
 	eth_em_interrupt_get_status(dev);
-	eth_em_interrupt_action(dev, handle);
+	eth_em_interrupt_action(dev, dev->intr_handle);
 	_rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
 }
 
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index a112b38..4cc7945 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -136,8 +136,7 @@  static int eth_igb_rxq_interrupt_setup(struct rte_eth_dev *dev);
 static int eth_igb_interrupt_get_status(struct rte_eth_dev *dev);
 static int eth_igb_interrupt_action(struct rte_eth_dev *dev,
 				    struct rte_intr_handle *handle);
-static void eth_igb_interrupt_handler(struct rte_intr_handle *handle,
-							void *param);
+static void eth_igb_interrupt_handler(void *param);
 static int  igb_hardware_init(struct e1000_hw *hw);
 static void igb_hw_control_acquire(struct e1000_hw *hw);
 static void igb_hw_control_release(struct e1000_hw *hw);
@@ -283,8 +282,7 @@  static void eth_igb_assign_msix_vector(struct e1000_hw *hw, int8_t direction,
 static void eth_igb_write_ivar(struct e1000_hw *hw, uint8_t msix_vector,
 			       uint8_t index, uint8_t offset);
 static void eth_igb_configure_msix_intr(struct rte_eth_dev *dev);
-static void eth_igbvf_interrupt_handler(struct rte_intr_handle *handle,
-					void *param);
+static void eth_igbvf_interrupt_handler(void *param);
 static void igbvf_mbx_process(struct rte_eth_dev *dev);
 
 /*
@@ -2781,12 +2779,12 @@  eth_igb_interrupt_action(struct rte_eth_dev *dev,
  *  void
  */
 static void
-eth_igb_interrupt_handler(struct rte_intr_handle *handle, void *param)
+eth_igb_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
 	eth_igb_interrupt_get_status(dev);
-	eth_igb_interrupt_action(dev, handle);
+	eth_igb_interrupt_action(dev, dev->intr_handle);
 }
 
 static int
@@ -2843,13 +2841,12 @@  eth_igbvf_interrupt_action(struct rte_eth_dev *dev, struct rte_intr_handle *intr
 }
 
 static void
-eth_igbvf_interrupt_handler(struct rte_intr_handle *handle,
-			    void *param)
+eth_igbvf_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
 	eth_igbvf_interrupt_get_status(dev);
-	eth_igbvf_interrupt_action(dev, handle);
+	eth_igbvf_interrupt_action(dev, dev->intr_handle);
 }
 
 static int
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 570b7b6..5f2188b 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -423,8 +423,7 @@  int enic_link_update(struct enic *enic)
 }
 
 static void
-enic_intr_handler(__rte_unused struct rte_intr_handle *handle,
-	void *arg)
+enic_intr_handler(void *arg)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)arg;
 	struct enic *enic = pmd_priv(dev);
diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index c4fe746..e37bd8f 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -2541,9 +2541,7 @@  fm10k_dev_handle_fault(struct fm10k_hw *hw, uint32_t eicr)
  *  void
  */
 static void
-fm10k_dev_interrupt_handler_pf(
-			struct rte_intr_handle *handle,
-			void *param)
+fm10k_dev_interrupt_handler_pf(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 	struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -2593,7 +2591,7 @@  fm10k_dev_interrupt_handler_pf(
 	FM10K_WRITE_REG(hw, FM10K_ITR(0), FM10K_ITR_AUTOMASK |
 					FM10K_ITR_MASK_CLEAR);
 	/* Re-enable interrupt from host side */
-	rte_intr_enable(handle);
+	rte_intr_enable(dev->intr_handle);
 }
 
 /**
@@ -2608,9 +2606,7 @@  fm10k_dev_interrupt_handler_pf(
  *  void
  */
 static void
-fm10k_dev_interrupt_handler_vf(
-			struct rte_intr_handle *handle,
-			void *param)
+fm10k_dev_interrupt_handler_vf(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 	struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -2627,7 +2623,7 @@  fm10k_dev_interrupt_handler_vf(
 	FM10K_WRITE_REG(hw, FM10K_VFITR(0), FM10K_ITR_AUTOMASK |
 					FM10K_ITR_MASK_CLEAR);
 	/* Re-enable interrupt from host side */
-	rte_intr_enable(handle);
+	rte_intr_enable(dev->intr_handle);
 }
 
 /* Mailbox message handler in VF */
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 303027b..ddd423c 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -318,8 +318,7 @@  static void i40e_stat_update_48(struct i40e_hw *hw,
 			       uint64_t *offset,
 			       uint64_t *stat);
 static void i40e_pf_config_irq0(struct i40e_hw *hw, bool no_queue);
-static void i40e_dev_interrupt_handler(struct rte_intr_handle *handle,
-				       void *param);
+static void i40e_dev_interrupt_handler(void *param);
 static int i40e_res_pool_init(struct i40e_res_pool_info *pool,
 				uint32_t base, uint32_t num);
 static void i40e_res_pool_destroy(struct i40e_res_pool_info *pool);
@@ -5770,8 +5769,7 @@  i40e_dev_handle_aq_msg(struct rte_eth_dev *dev)
  *  void
  */
 static void
-i40e_dev_interrupt_handler(struct rte_intr_handle *intr_handle,
-			   void *param)
+i40e_dev_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -5817,7 +5815,7 @@  i40e_dev_interrupt_handler(struct rte_intr_handle *intr_handle,
 done:
 	/* Enable interrupt */
 	i40e_pf_enable_irq0(hw);
-	rte_intr_enable(intr_handle);
+	rte_intr_enable(dev->intr_handle);
 }
 
 static int
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 55fd344..517b48b 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1420,8 +1420,7 @@  i40evf_handle_aq_msg(struct rte_eth_dev *dev)
  *  void
  */
 static void
-i40evf_dev_interrupt_handler(struct rte_intr_handle *intr_handle,
-			     void *param)
+i40evf_dev_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -1450,7 +1449,7 @@  i40evf_dev_interrupt_handler(struct rte_intr_handle *intr_handle,
 
 done:
 	i40evf_enable_irq0(hw);
-	rte_intr_enable(intr_handle);
+	rte_intr_enable(dev->intr_handle);
 }
 
 static int
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 7169007..b979476 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -244,8 +244,7 @@  static int ixgbe_dev_rxq_interrupt_setup(struct rte_eth_dev *dev);
 static int ixgbe_dev_interrupt_get_status(struct rte_eth_dev *dev);
 static int ixgbe_dev_interrupt_action(struct rte_eth_dev *dev,
 				      struct rte_intr_handle *handle);
-static void ixgbe_dev_interrupt_handler(struct rte_intr_handle *handle,
-		void *param);
+static void ixgbe_dev_interrupt_handler(void *param);
 static void ixgbe_dev_interrupt_delayed_handler(void *param);
 static void ixgbe_add_rar(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
 		uint32_t index, uint32_t pool);
@@ -366,8 +365,7 @@  static int ixgbe_timesync_read_time(struct rte_eth_dev *dev,
 				   struct timespec *timestamp);
 static int ixgbe_timesync_write_time(struct rte_eth_dev *dev,
 				   const struct timespec *timestamp);
-static void ixgbevf_dev_interrupt_handler(struct rte_intr_handle *handle,
-					  void *param);
+static void ixgbevf_dev_interrupt_handler(void *param);
 
 static int ixgbe_dev_l2_tunnel_eth_type_conf
 	(struct rte_eth_dev *dev, struct rte_eth_l2_tunnel_conf *l2_tunnel);
@@ -3913,13 +3911,12 @@  ixgbe_dev_interrupt_delayed_handler(void *param)
  *  void
  */
 static void
-ixgbe_dev_interrupt_handler(struct rte_intr_handle *handle,
-			    void *param)
+ixgbe_dev_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
 	ixgbe_dev_interrupt_get_status(dev);
-	ixgbe_dev_interrupt_action(dev, handle);
+	ixgbe_dev_interrupt_action(dev, dev->intr_handle);
 }
 
 static int
@@ -8159,8 +8156,7 @@  ixgbevf_dev_interrupt_action(struct rte_eth_dev *dev)
 }
 
 static void
-ixgbevf_dev_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
-			      void *param)
+ixgbevf_dev_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index d79f262..dbd9844 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -63,8 +63,7 @@ 
 /* Prototypes */
 static void nfp_net_close(struct rte_eth_dev *dev);
 static int nfp_net_configure(struct rte_eth_dev *dev);
-static void nfp_net_dev_interrupt_handler(struct rte_intr_handle *handle,
-					  void *param);
+static void nfp_net_dev_interrupt_handler(void *param);
 static void nfp_net_dev_interrupt_delayed_handler(void *param);
 static int nfp_net_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 static void nfp_net_infos_get(struct rte_eth_dev *dev,
@@ -1308,8 +1307,7 @@  nfp_net_irq_unmask(struct rte_eth_dev *dev)
 }
 
 static void
-nfp_net_dev_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
-			      void *param)
+nfp_net_dev_interrupt_handler(void *param)
 {
 	int64_t timeout;
 	struct rte_eth_link link;
diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 0494dbd..ce10924 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -279,14 +279,14 @@  static void qede_interrupt_action(struct ecore_hwfn *p_hwfn)
 }
 
 static void
-qede_interrupt_handler(struct rte_intr_handle *handle, void *param)
+qede_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
 	struct qede_dev *qdev = eth_dev->data->dev_private;
 	struct ecore_dev *edev = &qdev->edev;
 
 	qede_interrupt_action(ECORE_LEADING_HWFN(edev));
-	if (rte_intr_enable(handle))
+	if (rte_intr_enable(eth_dev->intr_handle))
 		DP_ERR(edev, "rte_intr_enable failed\n");
 }
 
diff --git a/drivers/net/sfc/sfc_intr.c b/drivers/net/sfc/sfc_intr.c
index d06980e..fa7cc3d 100644
--- a/drivers/net/sfc/sfc_intr.c
+++ b/drivers/net/sfc/sfc_intr.c
@@ -68,13 +68,14 @@  sfc_intr_handle_mgmt_evq(struct sfc_adapter *sa)
 }
 
 static void
-sfc_intr_line_handler(struct rte_intr_handle *intr_handle, void *cb_arg)
+sfc_intr_line_handler(void *cb_arg)
 {
 	struct sfc_adapter *sa = (struct sfc_adapter *)cb_arg;
 	efx_nic_t *enp = sa->nic;
 	boolean_t fatal;
 	uint32_t qmask;
 	unsigned int lsc_seq = sa->port.lsc_seq;
+	struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(sa->eth_dev);
 
 	sfc_log_init(sa, "entry");
 
@@ -97,7 +98,7 @@  sfc_intr_line_handler(struct rte_intr_handle *intr_handle, void *cb_arg)
 	if (qmask & (1 << sa->mgmt_evq_index))
 		sfc_intr_handle_mgmt_evq(sa);
 
-	if (rte_intr_enable(intr_handle) != 0)
+	if (rte_intr_enable(&pci_dev->intr_handle) != 0)
 		sfc_err(sa, "cannot reenable interrupts");
 
 	sfc_log_init(sa, "done");
@@ -113,12 +114,13 @@  sfc_intr_line_handler(struct rte_intr_handle *intr_handle, void *cb_arg)
 }
 
 static void
-sfc_intr_message_handler(struct rte_intr_handle *intr_handle, void *cb_arg)
+sfc_intr_message_handler(void *cb_arg)
 {
 	struct sfc_adapter *sa = (struct sfc_adapter *)cb_arg;
 	efx_nic_t *enp = sa->nic;
 	boolean_t fatal;
 	unsigned int lsc_seq = sa->port.lsc_seq;
+	struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(sa->eth_dev);
 
 	sfc_log_init(sa, "entry");
 
@@ -139,7 +141,7 @@  sfc_intr_message_handler(struct rte_intr_handle *intr_handle, void *cb_arg)
 
 	sfc_intr_handle_mgmt_evq(sa);
 
-	if (rte_intr_enable(intr_handle) != 0)
+	if (rte_intr_enable(&pci_dev->intr_handle) != 0)
 		sfc_err(sa, "cannot reenable interrupts");
 
 	sfc_log_init(sa, "done");
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 4dc03b9..9033e7b 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1191,8 +1191,7 @@  virtio_negotiate_features(struct virtio_hw *hw, uint64_t req_features)
  * if link state changed.
  */
 static void
-virtio_interrupt_handler(struct rte_intr_handle *handle,
-			 void *param)
+virtio_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = param;
 	struct virtio_hw *hw = dev->data->dev_private;
@@ -1202,7 +1201,7 @@  virtio_interrupt_handler(struct rte_intr_handle *handle,
 	isr = vtpci_isr(hw);
 	PMD_DRV_LOG(INFO, "interrupt status = %#x", isr);
 
-	if (rte_intr_enable(handle) < 0)
+	if (rte_intr_enable(dev->intr_handle) < 0)
 		PMD_DRV_LOG(ERR, "interrupt enable failed");
 
 	if (isr & VIRTIO_PCI_ISR_CONFIG) {
diff --git a/lib/librte_eal/common/include/rte_interrupts.h b/lib/librte_eal/common/include/rte_interrupts.h
index 6cade01..5d06ed7 100644
--- a/lib/librte_eal/common/include/rte_interrupts.h
+++ b/lib/librte_eal/common/include/rte_interrupts.h
@@ -51,8 +51,7 @@  extern "C" {
 struct rte_intr_handle;
 
 /** Function to be registered for the specific interrupt */
-typedef void (*rte_intr_callback_fn)(struct rte_intr_handle *intr_handle,
-							void *cb_arg);
+typedef void (*rte_intr_callback_fn)(void *cb_arg);
 
 #include <exec-env/rte_interrupts.h>
 
diff --git a/lib/librte_eal/linuxapp/eal/eal_alarm.c b/lib/librte_eal/linuxapp/eal/eal_alarm.c
index 8b042ab..fbae461 100644
--- a/lib/librte_eal/linuxapp/eal/eal_alarm.c
+++ b/lib/librte_eal/linuxapp/eal/eal_alarm.c
@@ -83,7 +83,7 @@  static rte_spinlock_t alarm_list_lk = RTE_SPINLOCK_INITIALIZER;
 
 static struct rte_intr_handle intr_handle = {.fd = -1 };
 static int handler_registered = 0;
-static void eal_alarm_callback(struct rte_intr_handle *hdl, void *arg);
+static void eal_alarm_callback(void *arg);
 
 int
 rte_eal_alarm_init(void)
@@ -102,8 +102,7 @@  rte_eal_alarm_init(void)
 }
 
 static void
-eal_alarm_callback(struct rte_intr_handle *hdl __rte_unused,
-		void *arg __rte_unused)
+eal_alarm_callback(void *arg __rte_unused)
 {
 	struct timespec now;
 	struct alarm_entry *ap;
diff --git a/lib/librte_eal/linuxapp/eal/eal_interrupts.c b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
index 92a19cb..19372fd 100644
--- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
+++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
@@ -278,29 +278,6 @@  vfio_disable_msi(const struct rte_intr_handle *intr_handle) {
 	return ret;
 }
 
-static int
-get_max_intr(const struct rte_intr_handle *intr_handle)
-{
-	struct rte_intr_source *src;
-
-	TAILQ_FOREACH(src, &intr_sources, next) {
-		if (src->intr_handle.fd != intr_handle->fd)
-			continue;
-
-		if (src->intr_handle.max_intr < intr_handle->max_intr)
-			src->intr_handle.max_intr = intr_handle->max_intr;
-		if (!src->intr_handle.max_intr)
-			src->intr_handle.max_intr = 1;
-		else if (src->intr_handle.max_intr > RTE_MAX_RXTX_INTR_VEC_ID)
-			src->intr_handle.max_intr
-				= RTE_MAX_RXTX_INTR_VEC_ID + 1;
-
-		return src->intr_handle.max_intr;
-	}
-
-	return -1;
-}
-
 /* enable MSI-X interrupts */
 static int
 vfio_enable_msix(const struct rte_intr_handle *intr_handle) {
@@ -313,15 +290,10 @@  vfio_enable_msix(const struct rte_intr_handle *intr_handle) {
 
 	irq_set = (struct vfio_irq_set *) irq_set_buf;
 	irq_set->argsz = len;
-
-	ret = get_max_intr(intr_handle);
-	if (ret < 0) {
-		RTE_LOG(ERR, EAL, "Invalid number of MSI-X irqs for fd %d\n",
-			intr_handle->fd);
-		return -1;
-	}
-
-	irq_set->count = ret;
+	/* 0 < irq_set->count < RTE_MAX_RXTX_INTR_VEC_ID + 1 */
+	irq_set->count = intr_handle->max_intr ?
+		(intr_handle->max_intr > RTE_MAX_RXTX_INTR_VEC_ID + 1 ?
+		RTE_MAX_RXTX_INTR_VEC_ID + 1 : intr_handle->max_intr) : 1;
 	irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_TRIGGER;
 	irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
 	irq_set->start = 0;
@@ -757,8 +729,7 @@  eal_intr_process_interrupts(struct epoll_event *events, int nfds)
 				rte_spinlock_unlock(&intr_lock);
 
 				/* call the actual callback */
-				active_cb.cb_fn(&src->intr_handle,
-					active_cb.cb_arg);
+				active_cb.cb_fn(active_cb.cb_arg);
 
 				/*get the lock back. */
 				rte_spinlock_lock(&intr_lock);