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net: enetc: add CBDR setup/teardown hooks to enetc_si_ops for VF support

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The upcoming ENETC v4 VF will share the enetc-vf driver with the
existing v1 VF. However, ENETC v4 uses a revised CBDR (command BD ring)
setup/teardown API that differs from v1.

To support both versions in the same driver, add setup_cbdr() and
teardown_cbdr() function pointers to struct enetc_si_ops. This allows
each hardware version to register its own CBDR implementation:

- ENETC v1 VF registers enetc_setup_cbdr/enetc_teardown_cbdr (existing)
- ENETC v4 VF will register enetc4_setup_cbdr/enetc4_teardown_cbdr

Update the enetc-vf driver to call CBDR operations through si->ops
instead of directly invoking the v1 functions. This enables runtime
selection of the correct CBDR backend based on hardware version.

Changes:
- Add setup_cbdr() and teardown_cbdr() hooks to struct enetc_si_ops
- Register v1 CBDR functions in enetc_vsi_ops
- Replace direct calls with si->ops->setup_cbdr() and
  si->ops->teardown_cbdr() in enetc_vf.c

No functional changes to existing v1 VF behavior.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260522092438.1264020-10-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Wei Fang 2026-05-22 17:24:35 +08:00 committed by Paolo Abeni
parent 4f46f1accd
commit 6bdc3144c0
2 changed files with 7 additions and 3 deletions
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2
drivers/net/ethernet/freescale/enetc/enetc.h
View File

@ -297,6 +297,8 @@ struct enetc_si;
struct enetc_si_ops {
int (*get_rss_table)(struct enetc_si *si, u32 *table, int count);
int (*set_rss_table)(struct enetc_si *si, const u32 *table, int count);
int (*setup_cbdr)(struct enetc_si *si);
void (*teardown_cbdr)(struct enetc_si *si);
};
/* PCI IEP device data */

8
drivers/net/ethernet/freescale/enetc/enetc_vf.c
View File

@ -288,6 +288,8 @@ static void enetc_vf_netdev_setup(struct enetc_si *si, struct net_device *ndev,
static const struct enetc_si_ops enetc_vsi_ops = {
.get_rss_table = enetc_get_rss_table,
.set_rss_table = enetc_set_rss_table,
.setup_cbdr = enetc_setup_cbdr,
.teardown_cbdr = enetc_teardown_cbdr,
};
static int enetc_vf_probe(struct pci_dev *pdev,
@ -328,7 +330,7 @@ static int enetc_vf_probe(struct pci_dev *pdev,
enetc_init_si_rings_params(priv);
err = enetc_setup_cbdr(si);
err = si->ops->setup_cbdr(si);
if (err)
goto err_setup_cbdr;
@ -364,7 +366,7 @@ static int enetc_vf_probe(struct pci_dev *pdev,
err_alloc_msix:
enetc_free_si_resources(priv);
err_alloc_si_res:
enetc_teardown_cbdr(si);
si->ops->teardown_cbdr(si);
err_setup_cbdr:
si->ndev = NULL;
free_netdev(ndev);
@ -389,7 +391,7 @@ static void enetc_vf_remove(struct pci_dev *pdev)
enetc_free_msix(priv);
enetc_free_si_resources(priv);
enetc_teardown_cbdr(si);
si->ops->teardown_cbdr(si);
free_netdev(si->ndev);