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libcxgb,iw_cxgb4,cxgbit: add cxgb_compute_wscale()

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Add cxgb_compute_wscale() in libcxgb_cm.h to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Varun Prakash 2016-09-13 21:24:01 +05:30 committed by David S. Miller
parent 44c6d06992
commit cc516700c7
4 changed files with 16 additions and 25 deletions
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12
drivers/infiniband/hw/cxgb4/cm.c
View File

@ -689,7 +689,7 @@ static int send_connect(struct c4iw_ep *ep)
u64 opt0;
u32 opt2;
unsigned int mtu_idx;
int wscale;
u32 wscale;
int win, sizev4, sizev6, wrlen;
struct sockaddr_in *la = (struct sockaddr_in *)
&ep->com.local_addr;
@ -739,7 +739,7 @@ static int send_connect(struct c4iw_ep *ep)
cxgb_best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
enable_tcp_timestamps,
(ep->com.remote_addr.ss_family == AF_INET) ? 0 : 1);
wscale = compute_wscale(rcv_win);
wscale = cxgb_compute_wscale(rcv_win);
/*
* Specify the largest window that will fit in opt0. The
@ -1891,7 +1891,7 @@ static int send_fw_act_open_req(struct c4iw_ep *ep, unsigned int atid)
struct sk_buff *skb;
struct fw_ofld_connection_wr *req;
unsigned int mtu_idx;
int wscale;
u32 wscale;
struct sockaddr_in *sin;
int win;
@ -1919,7 +1919,7 @@ static int send_fw_act_open_req(struct c4iw_ep *ep, unsigned int atid)
cxgb_best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
enable_tcp_timestamps,
(ep->com.remote_addr.ss_family == AF_INET) ? 0 : 1);
wscale = compute_wscale(rcv_win);
wscale = cxgb_compute_wscale(rcv_win);
/*
* Specify the largest window that will fit in opt0. The
@ -2339,7 +2339,7 @@ static int accept_cr(struct c4iw_ep *ep, struct sk_buff *skb,
unsigned int mtu_idx;
u64 opt0;
u32 opt2;
int wscale;
u32 wscale;
struct cpl_t5_pass_accept_rpl *rpl5 = NULL;
int win;
enum chip_type adapter_type = ep->com.dev->rdev.lldi.adapter_type;
@ -2363,7 +2363,7 @@ static int accept_cr(struct c4iw_ep *ep, struct sk_buff *skb,
cxgb_best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
enable_tcp_timestamps && req->tcpopt.tstamp,
(ep->com.remote_addr.ss_family == AF_INET) ? 0 : 1);
wscale = compute_wscale(rcv_win);
wscale = cxgb_compute_wscale(rcv_win);
/*
* Specify the largest window that will fit in opt0. The

9
drivers/infiniband/hw/cxgb4/iw_cxgb4.h
View File

@ -881,15 +881,6 @@ static inline struct c4iw_listen_ep *to_listen_ep(struct iw_cm_id *cm_id)
return cm_id->provider_data;
}
static inline int compute_wscale(int win)
{
int wscale = 0;
while (wscale < 14 && (65535<<wscale) < win)
wscale++;
return wscale;
}
static inline int ocqp_supported(const struct cxgb4_lld_info *infop)
{
#if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64)

9
drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h
View File

@ -74,4 +74,13 @@ cxgb_best_mtu(const unsigned short *mtus, unsigned short mtu,
cxgb4_best_aligned_mtu(mtus, hdr_size, data_size, 8, idx);
}
static inline u32 cxgb_compute_wscale(u32 win)
{
u32 wscale = 0;
while (wscale < 14 && (65535 << wscale) < win)
wscale++;
return wscale;
}
#endif

11
drivers/target/iscsi/cxgbit/cxgbit_cm.c
View File

@ -1085,15 +1085,6 @@ static int cxgbit_alloc_csk_skb(struct cxgbit_sock *csk)
return -ENOMEM;
}
static u32 cxgbit_compute_wscale(u32 win)
{
u32 wscale = 0;
while (wscale < 14 && (65535 << wscale) < win)
wscale++;
return wscale;
}
static void
cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req)
{
@ -1124,7 +1115,7 @@ cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req)
cxgb_best_mtu(csk->com.cdev->lldi.mtus, csk->mtu, &mtu_idx,
req->tcpopt.tstamp,
(csk->com.remote_addr.ss_family == AF_INET) ? 0 : 1);
wscale = cxgbit_compute_wscale(csk->rcv_win);
wscale = cxgb_compute_wscale(csk->rcv_win);
/*
* Specify the largest window that will fit in opt0. The
* remainder will be specified in the rx_data_ack.