brcmfmac: use pre-allocated scatter-gather table for txglomming

Instead of allocating a scatter-gather table for every transmit
reuse a pre-allocated table. The transmit path will be faster by
taking out this allocation.

Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 7 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index c894ee358153..b5ded8a57cb0 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -113,8 +113,6 @@ struct rte_console {
 #define BRCMF_TXBOUND   20      /* Default for max tx frames in
                                  one scheduling */
 
-#define BRCMF_DEFAULT_TXGLOM_SIZE       32  /* max tx frames in glom chain */
-
 #define BRCMF_TXMINMAX  1       /* Max tx frames if rx still pending */
 
 #define MEMBLOCK        2048    /* Block size used for downloading
@@ -511,10 +509,6 @@ static const uint max_roundup = 512;
 
 #define ALIGNMENT  4
 
-static int brcmf_sdio_txglomsz = BRCMF_DEFAULT_TXGLOM_SIZE;
-module_param_named(txglomsz, brcmf_sdio_txglomsz, int, 0);
-MODULE_PARM_DESC(txglomsz, "maximum tx packet chain size [SDIO]");
-
 enum brcmf_sdio_frmtype {
         BRCMF_SDIO_FT_NORMAL,
         BRCMF_SDIO_FT_SUPER,
@@ -2321,7 +2315,7 @@ static uint brcmf_sdio_sendfromq(struct brcmf_sdio *bus, uint maxframes)
                 __skb_queue_head_init(&pktq);
                 if (bus->txglom)
                         pkt_num = min_t(u8, bus->tx_max - bus->tx_seq,
-                                        brcmf_sdio_txglomsz);
+                                        bus->sdiodev->txglomsz);
                 pkt_num = min_t(u32, pkt_num,
                                 brcmu_pktq_mlen(&bus->txq, ~bus->flowcontrol));
                 spin_lock_bh(&bus->txqlock);