RDMA/cxgb4: Add module option to tweak delayed ack
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
parent
85963e4cbc
commit
ba6d39256b
|
@ -61,6 +61,10 @@ static char *states[] = {
|
|||
NULL,
|
||||
};
|
||||
|
||||
static int dack_mode;
|
||||
module_param(dack_mode, int, 0644);
|
||||
MODULE_PARM_DESC(dack_mode, "Delayed ack mode (default=0)");
|
||||
|
||||
int c4iw_max_read_depth = 8;
|
||||
module_param(c4iw_max_read_depth, int, 0644);
|
||||
MODULE_PARM_DESC(c4iw_max_read_depth, "Per-connection max ORD/IRD (default=8)");
|
||||
|
@ -474,6 +478,7 @@ static int send_connect(struct c4iw_ep *ep)
|
|||
cxgb4_best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx);
|
||||
wscale = compute_wscale(rcv_win);
|
||||
opt0 = KEEP_ALIVE(1) |
|
||||
DELACK(1) |
|
||||
WND_SCALE(wscale) |
|
||||
MSS_IDX(mtu_idx) |
|
||||
L2T_IDX(ep->l2t->idx) |
|
||||
|
@ -845,7 +850,9 @@ static int update_rx_credits(struct c4iw_ep *ep, u32 credits)
|
|||
INIT_TP_WR(req, ep->hwtid);
|
||||
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_RX_DATA_ACK,
|
||||
ep->hwtid));
|
||||
req->credit_dack = cpu_to_be32(credits);
|
||||
req->credit_dack = cpu_to_be32(credits | RX_FORCE_ACK(1) |
|
||||
F_RX_DACK_CHANGE |
|
||||
V_RX_DACK_MODE(dack_mode));
|
||||
set_wr_txq(skb, CPL_PRIORITY_ACK, ep->txq_idx);
|
||||
c4iw_ofld_send(&ep->com.dev->rdev, skb);
|
||||
return credits;
|
||||
|
@ -1264,6 +1271,7 @@ static void accept_cr(struct c4iw_ep *ep, __be32 peer_ip, struct sk_buff *skb,
|
|||
cxgb4_best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx);
|
||||
wscale = compute_wscale(rcv_win);
|
||||
opt0 = KEEP_ALIVE(1) |
|
||||
DELACK(1) |
|
||||
WND_SCALE(wscale) |
|
||||
MSS_IDX(mtu_idx) |
|
||||
L2T_IDX(ep->l2t->idx) |
|
||||
|
|
|
@ -826,4 +826,14 @@ struct ulptx_idata {
|
|||
#define S_ULPTX_NSGE 0
|
||||
#define M_ULPTX_NSGE 0xFFFF
|
||||
#define V_ULPTX_NSGE(x) ((x) << S_ULPTX_NSGE)
|
||||
|
||||
#define S_RX_DACK_MODE 29
|
||||
#define M_RX_DACK_MODE 0x3
|
||||
#define V_RX_DACK_MODE(x) ((x) << S_RX_DACK_MODE)
|
||||
#define G_RX_DACK_MODE(x) (((x) >> S_RX_DACK_MODE) & M_RX_DACK_MODE)
|
||||
|
||||
#define S_RX_DACK_CHANGE 31
|
||||
#define V_RX_DACK_CHANGE(x) ((x) << S_RX_DACK_CHANGE)
|
||||
#define F_RX_DACK_CHANGE V_RX_DACK_CHANGE(1U)
|
||||
|
||||
#endif /* _T4FW_RI_API_H_ */
|
||||
|
|
Loading…
Reference in a new issue