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| author |   Vasu Dev <vasu.dev@intel.com> | 2009-11-03 11:47:55 -0800 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@suse.de> | 2009-12-04 12:01:09 -0600 |
| commit | a7bbc7f40aa01eefef3d367349e1e6e87881a305 (patch) | |
| tree | fa03ef233949f2d1ccd37515e3bbb890451d3666 /drivers/scsi | |
| parent | [SCSI] fcoe: Formatting cleanups and commenting (diff) | |
| download | linux-dev-a7bbc7f40aa01eefef3d367349e1e6e87881a305.tar.xz linux-dev-a7bbc7f40aa01eefef3d367349e1e6e87881a305.zip | |
[SCSI] fcoe, libfc: use single frame allocation API
Cleans up frame allocation APIs to have just single fc_frame_alloc API.
Removes _fc_frame_alloc, renames __fc_frame_alloc to _fc_frame_alloc.
Modifies fc_fcp_send_data for removed _fc_frame_alloc, fc_fcp_send_data
was the only user of removed _fc_frame_alloc.
Also Adds check in fc_frame_alloc to do mod by 4 for only non-zero
len value.
This patch is prep work to fix can_queue reducing in next patch.
Single fc_frame_alloc API helps in fixing can_queue reducing in
next patch.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/libfc/fc_fcp.c | 15 | ||||
| -rw-r--r-- | drivers/scsi/libfc/fc_frame.c | 6 |
2 files changed, 7 insertions, 14 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 970b54f653b7..567eee7b8609 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -505,18 +505,11 @@ static int fc_fcp_send_data(struct fc_fcp_pkt *fsp, struct fc_seq *seq, */ if (tlen % 4) using_sg = 0; - if (using_sg) { - fp = _fc_frame_alloc(lport, 0); - if (!fp) - return -ENOMEM; - } else { - fp = fc_frame_alloc(lport, tlen); - if (!fp) - return -ENOMEM; + fp = fc_frame_alloc(lport, using_sg ? 0 : tlen); + if (!fp) + return -ENOMEM; - data = (void *)(fr_hdr(fp)) + - sizeof(struct fc_frame_header); - } + data = fc_frame_header_get(fp) + 1; fh_parm_offset = frame_offset; fr_max_payload(fp) = fsp->max_payload; } diff --git a/drivers/scsi/libfc/fc_frame.c b/drivers/scsi/libfc/fc_frame.c index 4fea369b58ee..79c956501bd9 100644 --- a/drivers/scsi/libfc/fc_frame.c +++ b/drivers/scsi/libfc/fc_frame.c @@ -51,7 +51,7 @@ EXPORT_SYMBOL(fc_frame_crc_check); * Allocate a frame intended to be sent via fcoe_xmit. * Get an sk_buff for the frame and set the length. */ -struct fc_frame *__fc_frame_alloc(size_t len) +struct fc_frame *_fc_frame_alloc(size_t len) { struct fc_frame *fp; struct sk_buff *skb; @@ -67,7 +67,7 @@ struct fc_frame *__fc_frame_alloc(size_t len) skb_put(skb, len); return fp; } -EXPORT_SYMBOL(__fc_frame_alloc); +EXPORT_SYMBOL(_fc_frame_alloc); struct fc_frame *fc_frame_alloc_fill(struct fc_lport *lp, size_t payload_len) { @@ -77,7 +77,7 @@ struct fc_frame *fc_frame_alloc_fill(struct fc_lport *lp, size_t payload_len) fill = payload_len % 4; if (fill != 0) fill = 4 - fill; - fp = __fc_frame_alloc(payload_len + fill); + fp = _fc_frame_alloc(payload_len + fill); if (fp) { memset((char *) fr_hdr(fp) + payload_len, 0, fill); /* trim is OK, we just allocated it so there are no fragments */ |