From: Vasanthakumar Thiagarajan Date: Sat, 16 Jul 2011 14:59:13 +0000 (+0530) Subject: ath6kl: Move down scatter enable and cleanup functions X-Git-Tag: v3.2-rc1~129^2~422^2^2~19^2~35 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=18a0f93e539cd9269d604ad9de59bca49c488808;p=~emulex%2Finfiniband.git ath6kl: Move down scatter enable and cleanup functions Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: Kalle Valo --- diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c index 797a39fb0df..9220a01915b 100644 --- a/drivers/net/wireless/ath/ath6kl/sdio.c +++ b/drivers/net/wireless/ath/ath6kl/sdio.c @@ -318,64 +318,6 @@ static int ath6kl_sdio_alloc_prep_scat_req(struct ath6kl_sdio *ar_sdio, return 0; } -/* clean up scatter support */ -static void ath6kl_sdio_cleanup_scatter(struct ath6kl *ar) -{ - struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); - struct hif_scatter_req *s_req, *tmp_req; - unsigned long flag; - - /* empty the free list */ - spin_lock_irqsave(&ar_sdio->scat_lock, flag); - list_for_each_entry_safe(s_req, tmp_req, &ar_sdio->scat_req, list) { - list_del(&s_req->list); - spin_unlock_irqrestore(&ar_sdio->scat_lock, flag); - - if (s_req->busrequest) - ath6kl_sdio_free_bus_req(ar_sdio, s_req->busrequest); - kfree(s_req->virt_dma_buf); - kfree(s_req->sgentries); - kfree(s_req); - - spin_lock_irqsave(&ar_sdio->scat_lock, flag); - } - spin_unlock_irqrestore(&ar_sdio->scat_lock, flag); -} - -/* setup of HIF scatter resources */ -static int ath6kl_sdio_enable_scatter(struct ath6kl *ar, - struct hif_dev_scat_sup_info *pinfo) -{ - struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); - int ret = 0; - - /* check if host supports scatter and it meets our requirements */ - if (ar_sdio->func->card->host->max_segs < MAX_SCATTER_ENTRIES_PER_REQ) { - ath6kl_err("hif-scatter: host only supports scatter of : %d entries, need: %d\n", - ar_sdio->func->card->host->max_segs, - MAX_SCATTER_ENTRIES_PER_REQ); - return -EINVAL; - } - - ath6kl_dbg(ATH6KL_DBG_ANY, - "hif-scatter enabled: max scatter req : %d entries: %d\n", - MAX_SCATTER_REQUESTS, MAX_SCATTER_ENTRIES_PER_REQ); - - ret = ath6kl_sdio_alloc_prep_scat_req(ar_sdio, - MAX_SCATTER_ENTRIES_PER_REQ, - MAX_SCATTER_REQUESTS, 0); - if (ret) { - ath6kl_err("hif-scatter: failed to alloc scatter resources !\n"); - ath6kl_sdio_cleanup_scatter(ar); - return ret; - } - - pinfo->max_scat_entries = MAX_SCATTER_ENTRIES_PER_REQ; - pinfo->max_xfer_szper_scatreq = MAX_SCATTER_REQ_TRANSFER_SIZE; - - return 0; -} - static int ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf, u32 len, u32 request) { @@ -658,6 +600,64 @@ static int ath6kl_sdio_async_rw_scatter(struct ath6kl *ar, return status; } +/* clean up scatter support */ +static void ath6kl_sdio_cleanup_scatter(struct ath6kl *ar) +{ + struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); + struct hif_scatter_req *s_req, *tmp_req; + unsigned long flag; + + /* empty the free list */ + spin_lock_irqsave(&ar_sdio->scat_lock, flag); + list_for_each_entry_safe(s_req, tmp_req, &ar_sdio->scat_req, list) { + list_del(&s_req->list); + spin_unlock_irqrestore(&ar_sdio->scat_lock, flag); + + if (s_req->busrequest) + ath6kl_sdio_free_bus_req(ar_sdio, s_req->busrequest); + kfree(s_req->virt_dma_buf); + kfree(s_req->sgentries); + kfree(s_req); + + spin_lock_irqsave(&ar_sdio->scat_lock, flag); + } + spin_unlock_irqrestore(&ar_sdio->scat_lock, flag); +} + +/* setup of HIF scatter resources */ +static int ath6kl_sdio_enable_scatter(struct ath6kl *ar, + struct hif_dev_scat_sup_info *pinfo) +{ + struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); + int ret = 0; + + /* check if host supports scatter and it meets our requirements */ + if (ar_sdio->func->card->host->max_segs < MAX_SCATTER_ENTRIES_PER_REQ) { + ath6kl_err("hif-scatter: host only supports scatter of : %d entries, need: %d\n", + ar_sdio->func->card->host->max_segs, + MAX_SCATTER_ENTRIES_PER_REQ); + return -EINVAL; + } + + ath6kl_dbg(ATH6KL_DBG_ANY, + "hif-scatter enabled: max scatter req : %d entries: %d\n", + MAX_SCATTER_REQUESTS, MAX_SCATTER_ENTRIES_PER_REQ); + + ret = ath6kl_sdio_alloc_prep_scat_req(ar_sdio, + MAX_SCATTER_ENTRIES_PER_REQ, + MAX_SCATTER_REQUESTS, 0); + if (ret) { + ath6kl_err("hif-scatter: failed to alloc scatter resources !\n"); + ath6kl_sdio_cleanup_scatter(ar); + return ret; + } + + pinfo->max_scat_entries = MAX_SCATTER_ENTRIES_PER_REQ; + pinfo->max_xfer_szper_scatreq = MAX_SCATTER_REQ_TRANSFER_SIZE; + + return 0; +} + static const struct ath6kl_hif_ops ath6kl_sdio_ops = { .read_write_sync = ath6kl_sdio_read_write_sync, .write_async = ath6kl_sdio_write_async,