mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-16 02:01:18 -04:00
Code Issues Packages Projects Releases Wiki Activity

bng_en: Extend bnge_set_ring_params() for rx-copybreak

Browse Source 
Add rx-copybreak support in bnge_set_ring_params()

Signed-off-by: Bhargava Marreddy <bhargava.marreddy@broadcom.com>
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Reviewed-by: Rajashekar Hudumula <rajashekar.hudumula@broadcom.com>
Link: https://patch.msgid.link/20260128185623.26559-2-bhargava.marreddy@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Bhargava Marreddy
2026-01-29 00:26:16 +05:30
committed by Jakub Kicinski
parent 86a8e8e0dd
commit 705c7933d9
2 changed files with 20 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/broadcom/bnge/bnge_netdev.c
View File

@@ -13,6 +13,7 @@
#include <linux/etherdevice.h>
#include <linux/if.h>
#include <net/ip.h>
#include <net/netdev_queues.h>
#include <linux/skbuff.h>
#include <net/page_pool/helpers.h>
@@ -2295,7 +2296,6 @@ void bnge_set_ring_params(struct bnge_dev *bd)
rx_space = rx_size + ALIGN(NET_SKB_PAD, 8) +
SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
bn->rx_copy_thresh = BNGE_RX_COPY_THRESH;
ring_size = bn->rx_ring_size;
bn->rx_agg_ring_size = 0;
bn->rx_agg_nr_pages = 0;
@@ -2334,7 +2334,10 @@ void bnge_set_ring_params(struct bnge_dev *bd)
bn->rx_agg_ring_size = agg_ring_size;
bn->rx_agg_ring_mask = (bn->rx_agg_nr_pages * RX_DESC_CNT) - 1;
rx_size = SKB_DATA_ALIGN(BNGE_RX_COPY_THRESH + NET_IP_ALIGN);
rx_size = max3(BNGE_DEFAULT_RX_COPYBREAK,
bn->rx_copybreak,
bn->netdev->cfg_pending->hds_thresh);
rx_size = SKB_DATA_ALIGN(rx_size + NET_IP_ALIGN);
rx_space = rx_size + NET_SKB_PAD +
SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
}
@@ -2367,6 +2370,17 @@ void bnge_set_ring_params(struct bnge_dev *bd)
bn->cp_ring_mask = bn->cp_bit - 1;
}
static void bnge_init_ring_params(struct bnge_net *bn)
{
u32 rx_size;
bn->rx_copybreak = BNGE_DEFAULT_RX_COPYBREAK;
/* Try to fit 4 chunks into a 4k page */
rx_size = SZ_1K -
NET_SKB_PAD - SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
bn->netdev->cfg->hds_thresh = max(BNGE_DEFAULT_RX_COPYBREAK, rx_size);
}
int bnge_netdev_alloc(struct bnge_dev *bd, int max_irqs)
{
struct net_device *netdev;
@@ -2456,6 +2470,7 @@ int bnge_netdev_alloc(struct bnge_dev *bd, int max_irqs)
bn->rx_dir = DMA_FROM_DEVICE;
bnge_set_tpa_flags(bd);
bnge_init_ring_params(bn);
bnge_set_ring_params(bd);
bnge_init_l2_fltr_tbl(bn);

5
drivers/net/ethernet/broadcom/bnge/bnge_netdev.h
View File

@@ -135,7 +135,8 @@ struct bnge_ring_grp_info {
u16 nq_fw_ring_id;
};
#define BNGE_RX_COPY_THRESH 256
#define BNGE_DEFAULT_RX_COPYBREAK 256
#define BNGE_MAX_RX_COPYBREAK 1024
#define BNGE_HW_FEATURE_VLAN_ALL_RX \
(NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)
@@ -186,7 +187,7 @@ struct bnge_net {
u32 rx_buf_size;
u32 rx_buf_use_size; /* usable size */
u32 rx_agg_ring_size;
u32 rx_copy_thresh;
u32 rx_copybreak;
u32 rx_ring_mask;
u32 rx_agg_ring_mask;
u16 rx_nr_pages;