diff mbox series

[net-next,3/5] enic: Use function pointers for buf alloc, free and RQ service

Message ID 20241220215058.11118-4-johndale@cisco.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series enic: Use Page Pool API for receiving packets | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1 this patch: 1
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 14 this patch: 14
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 18 this patch: 18
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 69 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

John Daley Dec. 20, 2024, 9:50 p.m. UTC 
In order to support more than one packet receive processing scheme, use
pointers for allocate, free and RQ descrptor processing functions.

Co-developed-by: Nelson Escobar <neescoba@cisco.com>
Signed-off-by: Nelson Escobar <neescoba@cisco.com>
Co-developed-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: John Daley <johndale@cisco.com>
---
 drivers/net/ethernet/cisco/enic/enic.h      |  5 +++++
 drivers/net/ethernet/cisco/enic/enic_main.c | 14 +++++++++-----
 drivers/net/ethernet/cisco/enic/enic_rq.c   |  2 +-
 3 files changed, 15 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/cisco/enic/enic.h b/drivers/net/ethernet/cisco/enic/enic.h
index 10b7e02ba4d0..51f80378d928 100644
--- a/drivers/net/ethernet/cisco/enic/enic.h
+++ b/drivers/net/ethernet/cisco/enic/enic.h
@@ -226,6 +226,11 @@  struct enic {
 	u32 rx_copybreak;
 	u8 rss_key[ENIC_RSS_LEN];
 	struct vnic_gen_stats gen_stats;
+	void (*rq_buf_service)(struct vnic_rq *rq, struct cq_desc *cq_desc,
+			       struct vnic_rq_buf *buf, int skipped,
+			       void *opaque);
+	int (*rq_alloc_buf)(struct vnic_rq *rq);
+	void (*rq_free_buf)(struct vnic_rq *rq, struct vnic_rq_buf *buf);
 };
 
 static inline struct net_device *vnic_get_netdev(struct vnic_dev *vdev)
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index f8d0011486d7..45ab6b670563 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1519,7 +1519,7 @@  static int enic_poll(struct napi_struct *napi, int budget)
 			0 /* don't unmask intr */,
 			0 /* don't reset intr timer */);
 
-	err = vnic_rq_fill(&enic->rq[0].vrq, enic_rq_alloc_buf);
+	err = vnic_rq_fill(&enic->rq[0].vrq, enic->rq_alloc_buf);
 
 	/* Buffer allocation failed. Stay in polling
 	 * mode so we can try to fill the ring again.
@@ -1647,7 +1647,7 @@  static int enic_poll_msix_rq(struct napi_struct *napi, int budget)
 			0 /* don't unmask intr */,
 			0 /* don't reset intr timer */);
 
-	err = vnic_rq_fill(&enic->rq[rq].vrq, enic_rq_alloc_buf);
+	err = vnic_rq_fill(&enic->rq[rq].vrq, enic->rq_alloc_buf);
 
 	/* Buffer allocation failed. Stay in polling mode
 	 * so we can try to fill the ring again.
@@ -1882,6 +1882,10 @@  static int enic_open(struct net_device *netdev)
 	unsigned int i;
 	int err, ret;
 
+	enic->rq_buf_service = enic_rq_indicate_buf;
+	enic->rq_alloc_buf = enic_rq_alloc_buf;
+	enic->rq_free_buf = enic_free_rq_buf;
+
 	err = enic_request_intr(enic);
 	if (err) {
 		netdev_err(netdev, "Unable to request irq.\n");
@@ -1900,7 +1904,7 @@  static int enic_open(struct net_device *netdev)
 	for (i = 0; i < enic->rq_count; i++) {
 		/* enable rq before updating rq desc */
 		vnic_rq_enable(&enic->rq[i].vrq);
-		vnic_rq_fill(&enic->rq[i].vrq, enic_rq_alloc_buf);
+		vnic_rq_fill(&enic->rq[i].vrq, enic->rq_alloc_buf);
 		/* Need at least one buffer on ring to get going */
 		if (vnic_rq_desc_used(&enic->rq[i].vrq) == 0) {
 			netdev_err(netdev, "Unable to alloc receive buffers\n");
@@ -1939,7 +1943,7 @@  static int enic_open(struct net_device *netdev)
 	for (i = 0; i < enic->rq_count; i++) {
 		ret = vnic_rq_disable(&enic->rq[i].vrq);
 		if (!ret)
-			vnic_rq_clean(&enic->rq[i].vrq, enic_free_rq_buf);
+			vnic_rq_clean(&enic->rq[i].vrq, enic->rq_free_buf);
 	}
 	enic_dev_notify_unset(enic);
 err_out_free_intr:
@@ -1998,7 +2002,7 @@  static int enic_stop(struct net_device *netdev)
 	for (i = 0; i < enic->wq_count; i++)
 		vnic_wq_clean(&enic->wq[i].vwq, enic_free_wq_buf);
 	for (i = 0; i < enic->rq_count; i++)
-		vnic_rq_clean(&enic->rq[i].vrq, enic_free_rq_buf);
+		vnic_rq_clean(&enic->rq[i].vrq, enic->rq_free_buf);
 	for (i = 0; i < enic->cq_count; i++)
 		vnic_cq_clean(&enic->cq[i]);
 	for (i = 0; i < enic->intr_count; i++)
diff --git a/drivers/net/ethernet/cisco/enic/enic_rq.c b/drivers/net/ethernet/cisco/enic/enic_rq.c
index 571af8f31470..ae2ab5af87e9 100644
--- a/drivers/net/ethernet/cisco/enic/enic_rq.c
+++ b/drivers/net/ethernet/cisco/enic/enic_rq.c
@@ -114,7 +114,7 @@  int enic_rq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
 	struct enic *enic = vnic_dev_priv(vdev);
 
 	vnic_rq_service(&enic->rq[q_number].vrq, cq_desc, completed_index,
-			VNIC_RQ_RETURN_DESC, enic_rq_indicate_buf, opaque);
+			VNIC_RQ_RETURN_DESC, enic->rq_buf_service, opaque);
 
 	return 0;
 }