[dpdk-dev] [PATCH v3 3/9] drivers: Use ETH_DEV_PCI_DEV() helper
Shreyansh Jain
shreyansh.jain at nxp.com
Wed Dec 21 10:50:39 CET 2016
On Tuesday 20 December 2016 04:41 PM, Jan Blunck wrote:
> The drivers should not directly access the rte_eth_dev->pci_dev but use
> a macro instead. This is a preparation for replacing the pci_dev with
> a struct rte_device member in the future.
>
> Signed-off-by: Jan Blunck <jblunck at infradead.org>
> ---
> drivers/net/bnx2x/bnx2x_ethdev.c | 12 +++---
> drivers/net/bnxt/bnxt_ethdev.c | 19 ++++++----
> drivers/net/bnxt/bnxt_ring.c | 11 +++---
> drivers/net/cxgbe/cxgbe_ethdev.c | 2 +-
> drivers/net/e1000/em_ethdev.c | 20 ++++++----
> drivers/net/e1000/igb_ethdev.c | 50 ++++++++++++++-----------
> drivers/net/e1000/igb_pf.c | 3 +-
> drivers/net/ena/ena_ethdev.c | 2 +-
> drivers/net/enic/enic_ethdev.c | 2 +-
> drivers/net/fm10k/fm10k_ethdev.c | 49 +++++++++++++------------
> drivers/net/i40e/i40e_ethdev.c | 44 +++++++++++-----------
> drivers/net/i40e/i40e_ethdev.h | 4 ++
> drivers/net/i40e/i40e_ethdev_vf.c | 38 +++++++++----------
> drivers/net/ixgbe/ixgbe_ethdev.c | 65 ++++++++++++++++++++-------------
> drivers/net/ixgbe/ixgbe_pf.c | 2 +-
> drivers/net/nfp/nfp_net.c | 16 ++++----
> drivers/net/qede/qede_ethdev.c | 17 +++++----
> drivers/net/szedata2/rte_eth_szedata2.c | 27 +++++++-------
> drivers/net/szedata2/rte_eth_szedata2.h | 34 ++++++++---------
> drivers/net/thunderx/nicvf_ethdev.c | 5 ++-
> drivers/net/vmxnet3/vmxnet3_ethdev.c | 4 +-
> 21 files changed, 234 insertions(+), 192 deletions(-)
>
> diff --git a/drivers/net/bnx2x/bnx2x_ethdev.c b/drivers/net/bnx2x/bnx2x_ethdev.c
> index 0eae433..c331ccd 100644
> --- a/drivers/net/bnx2x/bnx2x_ethdev.c
> +++ b/drivers/net/bnx2x/bnx2x_ethdev.c
> @@ -124,7 +124,7 @@ bnx2x_interrupt_handler(__rte_unused struct rte_intr_handle *handle, void *param
> struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
>
> bnx2x_interrupt_action(dev);
> - rte_intr_enable(&(dev->pci_dev->intr_handle));
> + rte_intr_enable(&(ETH_DEV_PCI_DEV(dev)->intr_handle));
> }
>
> /*
> @@ -187,10 +187,10 @@ bnx2x_dev_start(struct rte_eth_dev *dev)
> }
>
> if (IS_PF(sc)) {
> - rte_intr_callback_register(&(dev->pci_dev->intr_handle),
> + rte_intr_callback_register(&sc->pci_dev->intr_handle,
> bnx2x_interrupt_handler, (void *)dev);
>
> - if(rte_intr_enable(&(dev->pci_dev->intr_handle)))
> + if (rte_intr_enable(&sc->pci_dev->intr_handle))
This changeset generates following error in my environment:
--->8---
/home/shreyansh/build/DPDK/01_dpdk/drivers/net/bnx2x/bnx2x_ethdev.c: In
function ‘bnx2x_dev_start’:
/home/shreyansh/build/DPDK/01_dpdk/drivers/net/bnx2x/bnx2x_ethdev.c:190:30:
error: passing argument 1 of ‘rte_intr_callback_register’ discards
‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
rte_intr_callback_register(&sc->pci_dev->intr_handle,
^
In file included from
/home/shreyansh/build/DPDK/01_dpdk/x86_64-native-linuxapp-gcc/include/rte_pci.h:86:0,
from
/home/shreyansh/build/DPDK/01_dpdk/drivers/net/bnx2x/bnx2x_ethdev.h:34,
from
/home/shreyansh/build/DPDK/01_dpdk/drivers/net/bnx2x/bnx2x.h:34,
from
/home/shreyansh/build/DPDK/01_dpdk/drivers/net/bnx2x/bnx2x_ethdev.c:11:
/home/shreyansh/build/DPDK/01_dpdk/x86_64-native-linuxapp-gcc/include/rte_interrupts.h:73:5:
note: expected ‘struct rte_intr_handle *’ but argument is of type ‘const
struct rte_intr_handle *’
int rte_intr_callback_register(struct rte_intr_handle *intr_handle,
--->8---
Problem is that earlier 'eth_dev->pci_dev->intr_handle' was being passed
which was not a 'const'. But, the BNX2 local structure 'bnx2x_softc' has
a 'const struct rte_pci_device *' as member.
Maybe, following can help:
rte_intr_callback_register(Ð_DEV_PCI_DEV(dev),...);
> PMD_DRV_LOG(ERR, "rte_intr_enable failed");
> }
>
> @@ -215,8 +215,8 @@ bnx2x_dev_stop(struct rte_eth_dev *dev)
> PMD_INIT_FUNC_TRACE();
>
> if (IS_PF(sc)) {
> - rte_intr_disable(&(dev->pci_dev->intr_handle));
> - rte_intr_callback_unregister(&(dev->pci_dev->intr_handle),
> + rte_intr_disable(&sc->pci_dev->intr_handle);
> + rte_intr_callback_unregister(&sc->pci_dev->intr_handle,
Similar error here.
rte_intr_callback_unregister(&(ETH_DEV_PCI_DEV(dev)->intr_handle), ...)
solves it for me.
> bnx2x_interrupt_handler, (void *)dev);
> }
>
> @@ -516,7 +516,7 @@ bnx2x_common_dev_init(struct rte_eth_dev *eth_dev, int is_vf)
> PMD_INIT_FUNC_TRACE();
>
> eth_dev->dev_ops = is_vf ? &bnx2xvf_eth_dev_ops : &bnx2x_eth_dev_ops;
> - pci_dev = eth_dev->pci_dev;
> + pci_dev = ETH_DEV_PCI_DEV(eth_dev);
>
> rte_eth_copy_pci_info(eth_dev, pci_dev);
>
<snip>
-
Shreyansh
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