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Subject[PATCH 3/3 V2] staging: cxt1e1: remove OS_mem_token_xxxx interfaces in sbecom_inline_linux.h
OS_mem_token_xxxx interfaces are useless, so just replaced with
sk_buff related fuctions.

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
---
V2: rebased on changes in the first one.

drivers/staging/cxt1e1/musycc.c | 45 +++++++++---------
drivers/staging/cxt1e1/pmcc4_drv.c | 10 ++--
drivers/staging/cxt1e1/pmcc4_private.h | 2 +-
drivers/staging/cxt1e1/sbecom_inline_linux.h | 65 --------------------------
4 files changed, 27 insertions(+), 95 deletions(-)

diff --git a/drivers/staging/cxt1e1/musycc.c b/drivers/staging/cxt1e1/musycc.c
index 5ddab02..d658f0d 100644
--- a/drivers/staging/cxt1e1/musycc.c
+++ b/drivers/staging/cxt1e1/musycc.c
@@ -935,16 +935,15 @@ musycc_bh_tx_eom(mpi_t *pi, int gchan)
md->data = 0;
if (md->mem_token) {
/* upcount channel */
- atomic_sub(OS_mem_token_tlen(md->mem_token),
- &ch->tx_pending);
+ unsigned int total_len = md->mem_token->len;
+ atomic_sub(total_len, &ch->tx_pending);
/* upcount card */
- atomic_sub(OS_mem_token_tlen(md->mem_token),
- &pi->up->tx_pending);
+ atomic_sub(total_len, &pi->up->tx_pending);
#ifdef SBE_WAN256T3_ENABLE
if (!atomic_read(&pi->up->tx_pending))
wan256t3_led(pi->up, LED_TX, 0);
#endif
- OS_mem_token_free_irq(md->mem_token);
+ dev_kfree_skb_irq(md->mem_token);
md->mem_token = NULL;
}
md->status = 0;
@@ -1016,7 +1015,7 @@ static void
musycc_bh_rx_eom(mpi_t *pi, int gchan)
{
mch_t *ch;
- void *m, *m2;
+ struct sk_buff *m, *m2;
struct mdesc *md;
volatile u_int32_t status;
u_int32_t error;
@@ -1041,12 +1040,12 @@ musycc_bh_rx_eom(mpi_t *pi, int gchan)
error = (status >> 16) & 0xf;
if (error == 0) {
{
- m2 = OS_mem_token_alloc(cxt1e1_max_mru);
+ m2 = dev_alloc_skb(cxt1e1_max_mru);
if (m2) {
/* substitute the mbuf+cluster */
md->mem_token = m2;
md->data = cpu_to_le32(virt_to_phys(
- OS_mem_token_data(m2)));
+ m2->data));

/* pass the received mbuf upward */
sd_recv_consume(m, status & LENGTH_MASK,
@@ -1552,11 +1551,11 @@ musycc_chan_down(ci_t *dummy, int channum)
FLUSH_MEM_WRITE();
for (i = 0; i < ch->txd_num; i++)
if (ch->mdt[i].mem_token)
- OS_mem_token_free(ch->mdt[i].mem_token);
+ dev_kfree_skb_any(ch->mdt[i].mem_token);

for (i = 0; i < ch->rxd_num; i++)
if (ch->mdr[i].mem_token)
- OS_mem_token_free(ch->mdr[i].mem_token);
+ dev_kfree_skb_any(ch->mdr[i].mem_token);

kfree(ch->mdr);
ch->mdr = NULL;
@@ -1574,11 +1573,11 @@ musycc_chan_down(ci_t *dummy, int channum)
#endif

int
-musycc_start_xmit(ci_t *ci, int channum, void *mem_token)
+musycc_start_xmit(ci_t *ci, int channum, struct sk_buff *mem_token)
{
mch_t *ch;
struct mdesc *md;
- void *m2;
+ struct sk_buff *m2;
int txd_need_cnt = 0;
u_int32_t len, data_len;

@@ -1611,23 +1610,23 @@ musycc_start_xmit(ci_t *ci, int channum, void *mem_token)
/** Determine total amount of data to be sent **/
/***********************************************/
m2 = mem_token;
- len = OS_mem_token_tlen(m2);
+ len = m2->len;

while (m2 && len > 0) {
- data_len = OS_mem_token_len(m2);
+ data_len = m2->data_len;
if (data_len) {
len -= data_len;
txd_need_cnt++;
}

- m2 = OS_mem_token_next(m2);
+ m2 = m2->next;
}

if (txd_need_cnt == 0) {
if (cxt1e1_log_level >= LOG_MONITOR2)
pr_info("%s channel %d: no TX data in User buffer\n",
ci->devname, channum);
- OS_mem_token_free(mem_token);
+ dev_kfree_skb_any(mem_token);
return 0; /* no data to send */
}
/*************************************************/
@@ -1639,7 +1638,7 @@ musycc_start_xmit(ci_t *ci, int channum, void *mem_token)
pr_info("start_xmit: discarding buffer, insufficient descriptor cnt %d, need %d.\n",
ch->txd_num, txd_need_cnt + 1);
ch->s.tx_dropped++;
- OS_mem_token_free(mem_token);
+ dev_kfree_skb_any(mem_token);
return 0;
}

@@ -1661,14 +1660,14 @@ musycc_start_xmit(ci_t *ci, int channum, void *mem_token)
/**************************************************/
m2 = mem_token;
md = ch->txd_usr_add; /* get current available descriptor */
- len = OS_mem_token_tlen(m2);
+ len = m2->len;

while (m2 && len > 0) {
- u_int32_t data_len = OS_mem_token_len(m2);
+ u_int32_t data_len = m2->data_len;
u_int32_t status = 0;

if (!data_len) {
- m2 = OS_mem_token_next(m2);
+ m2 = m2->next;
continue;
}

@@ -1705,13 +1704,13 @@ musycc_start_xmit(ci_t *ci, int channum, void *mem_token)
*/
md->mem_token = len ? NULL : mem_token;

- md->data = cpu_to_le32(virt_to_phys(OS_mem_token_data(m2)));
+ md->data = cpu_to_le32(virt_to_phys(m2->data));
FLUSH_MEM_WRITE();
md->status = cpu_to_le32(status);
--ch->txd_free;
md = md->snext;

- m2 = OS_mem_token_next(m2);
+ m2 = m2->next;
}
FLUSH_MEM_WRITE();

@@ -1723,7 +1722,7 @@ musycc_start_xmit(ci_t *ci, int channum, void *mem_token)
FLUSH_MEM_WRITE();
ch->txd_usr_add = md;

- len = OS_mem_token_tlen(mem_token);
+ len = mem_token->len;
atomic_add(len, &ch->tx_pending);
atomic_add(len, &ci->tx_pending);
ch->s.tx_packets++;
diff --git a/drivers/staging/cxt1e1/pmcc4_drv.c b/drivers/staging/cxt1e1/pmcc4_drv.c
index 02f6770..3c4404d 100644
--- a/drivers/staging/cxt1e1/pmcc4_drv.c
+++ b/drivers/staging/cxt1e1/pmcc4_drv.c
@@ -1216,7 +1216,6 @@ c4_chan_up (ci_t *ci, int channum)
{
mpi_t *pi;
mch_t *ch;
- struct mbuf *m;
struct mdesc *md;
int nts, nbuf, txnum, rxnum;
int addr, i, j, gchan;
@@ -1357,16 +1356,15 @@ c4_chan_up (ci_t *ci, int channum)
}
md->next = cpu_to_le32 (virt_to_phys(md->snext));

- m = OS_mem_token_alloc(cxt1e1_max_mru);
- if (!m) {
+ md->mem_token = dev_alloc_skb(cxt1e1_max_mru);
+ if (!md->mem_token) {
if (cxt1e1_log_level >= LOG_MONITOR)
pr_info(
"%s: c4_chan_up[%d] - token alloc failure, size = %d.\n",
ci->devname, channum, cxt1e1_max_mru);
goto errfree;
}
- md->mem_token = m;
- md->data = cpu_to_le32 (virt_to_phys(OS_mem_token_data (m)));
+ md->data = cpu_to_le32 (virt_to_phys(md->mem_token->data));
md->status = tmp | MUSYCC_RX_OWNED; /* MUSYCC owns RX descriptor **
* CODING NOTE:
* MUSYCC_RX_OWNED = 0 so no
@@ -1431,7 +1429,7 @@ errfree:
{
/* Don't leak all the previously allocated mbufs in this loop */
i--;
- OS_mem_token_free (ch->mdr[i].mem_token);
+ dev_kfree_skb_any(ch->mdr[i].mem_token);
}
kfree(ch->mdt);
ch->mdt = NULL;
diff --git a/drivers/staging/cxt1e1/pmcc4_private.h b/drivers/staging/cxt1e1/pmcc4_private.h
index 451f12f..0edb9f7 100644
--- a/drivers/staging/cxt1e1/pmcc4_private.h
+++ b/drivers/staging/cxt1e1/pmcc4_private.h
@@ -50,7 +50,7 @@ struct mdesc
volatile u_int32_t status; /* Buffer Descriptor */
u_int32_t data; /* Data Pointer */
u_int32_t next; /* MUSYCC view of Next Pointer */
- void *mem_token; /* Data */
+ struct sk_buff *mem_token; /* Data */
struct mdesc *snext;
};

diff --git a/drivers/staging/cxt1e1/sbecom_inline_linux.h b/drivers/staging/cxt1e1/sbecom_inline_linux.h
index a99073b..5470142 100644
--- a/drivers/staging/cxt1e1/sbecom_inline_linux.h
+++ b/drivers/staging/cxt1e1/sbecom_inline_linux.h
@@ -34,71 +34,6 @@
u_int32_t pci_read_32 (u_int32_t *p);
void pci_write_32 (u_int32_t *p, u_int32_t v);

-
-/*
- * system dependent callbacks
- */
-
-/****************/
-/* memory token */
-/****************/
-
-static inline void *
-OS_mem_token_alloc (size_t size)
-{
- struct sk_buff *skb;
-
- skb = dev_alloc_skb (size);
- if (!skb)
- {
- //pr_warning("no mem in OS_mem_token_alloc !\n");
- return NULL;
- }
- return skb;
-}
-
-
-static inline void
-OS_mem_token_free (void *token)
-{
- dev_kfree_skb_any (token);
-}
-
-
-static inline void
-OS_mem_token_free_irq (void *token)
-{
- dev_kfree_skb_irq (token);
-}
-
-
-static inline void *
-OS_mem_token_data (void *token)
-{
- return ((struct sk_buff *) token)->data;
-}
-
-
-static inline void *
-OS_mem_token_next (void *token)
-{
- return ((struct sk_buff*)token)->next;
-}
-
-
-static inline int
-OS_mem_token_len (void *token)
-{
- return ((struct sk_buff *) token)->data_len;
-}
-
-
-static inline int
-OS_mem_token_tlen (void *token)
-{
- return ((struct sk_buff *) token)->len;
-}
-
/**********/
/* semops */
/**********/
--
1.7.1


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