Use GIC functions to create a dedicated interrupt context or acquire a shared interrupt context for each EQ when setting up a vPort.
Signed-off-by: Long Li <[email protected]> --- drivers/net/ethernet/microsoft/mana/gdma_main.c | 2 +- drivers/net/ethernet/microsoft/mana/mana_en.c | 17 ++++++++++++++++- include/net/mana/gdma.h | 1 + 3 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c index f3dbc4881be4..61dc06dc8602 100644 --- a/drivers/net/ethernet/microsoft/mana/gdma_main.c +++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c @@ -808,7 +808,6 @@ static void mana_gd_deregister_irq(struct gdma_queue *queue) } spin_unlock_irqrestore(&gic->lock, flags); - queue->eq.msix_index = INVALID_PCI_MSIX_INDEX; synchronize_rcu(); } @@ -923,6 +922,7 @@ static int mana_gd_create_eq(struct gdma_dev *gd, out: dev_err(dev, "Failed to create EQ: %d\n", err); mana_gd_destroy_eq(gc, false, queue); + queue->eq.msix_index = INVALID_PCI_MSIX_INDEX; return err; } diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index 1e65670feb17..c0bd520dd54d 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -1600,6 +1600,7 @@ void mana_destroy_eq(struct mana_port_context *apc) struct gdma_context *gc = ac->gdma_dev->gdma_context; struct gdma_queue *eq; int i; + unsigned int msi; if (!apc->eqs) return; @@ -1612,7 +1613,9 @@ void mana_destroy_eq(struct mana_port_context *apc) if (!eq) continue; + msi = eq->eq.msix_index; mana_gd_destroy_queue(gc, eq); + mana_gd_put_gic(gc, !gc->msi_sharing, msi); } kfree(apc->eqs); @@ -1629,6 +1632,7 @@ static void mana_create_eq_debugfs(struct mana_port_context *apc, int i) eq.mana_eq_debugfs = debugfs_create_dir(eqnum, apc->mana_eqs_debugfs); debugfs_create_u32("head", 0400, eq.mana_eq_debugfs, &eq.eq->head); debugfs_create_u32("tail", 0400, eq.mana_eq_debugfs, &eq.eq->tail); + debugfs_create_u32("irq", 0400, eq.mana_eq_debugfs, &eq.eq->eq.irq); debugfs_create_file("eq_dump", 0400, eq.mana_eq_debugfs, eq.eq, &mana_dbg_q_fops); } @@ -1639,6 +1643,7 @@ int mana_create_eq(struct mana_port_context *apc) struct gdma_queue_spec spec = {}; int err; int i; + struct gdma_irq_context *gic; WARN_ON(apc->eqs); apc->eqs = kcalloc(apc->num_queues, sizeof(struct mana_eq), @@ -1656,12 +1661,22 @@ int mana_create_eq(struct mana_port_context *apc) apc->mana_eqs_debugfs = debugfs_create_dir("EQs", apc->mana_port_debugfs); for (i = 0; i < apc->num_queues; i++) { - spec.eq.msix_index = (i + 1) % gc->num_msix_usable; + if (gc->msi_sharing) + spec.eq.msix_index = (i + 1) % gc->num_msix_usable; + + gic = mana_gd_get_gic(gc, !gc->msi_sharing, &spec.eq.msix_index); + if (!gic) { + err = -ENOMEM; + goto out; + } + err = mana_gd_create_mana_eq(gd, &spec, &apc->eqs[i].eq); if (err) { dev_err(gc->dev, "Failed to create EQ %d : %d\n", i, err); + mana_gd_put_gic(gc, !gc->msi_sharing, spec.eq.msix_index); goto out; } + apc->eqs[i].eq->eq.irq = gic->irq; mana_create_eq_debugfs(apc, i); } diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h index be6bdd169b3d..4eb94d1df439 100644 --- a/include/net/mana/gdma.h +++ b/include/net/mana/gdma.h @@ -336,6 +336,7 @@ struct gdma_queue { void *context; unsigned int msix_index; + unsigned int irq; u32 log2_throttle_limit; } eq; -- 2.43.0
