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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/scsi/fnic/fnic_io.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/scsi/fnic/fnic_io.h')
-rw-r--r--kernel/drivers/scsi/fnic/fnic_io.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/kernel/drivers/scsi/fnic/fnic_io.h b/kernel/drivers/scsi/fnic/fnic_io.h
new file mode 100644
index 000000000..c35b8f188
--- /dev/null
+++ b/kernel/drivers/scsi/fnic/fnic_io.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef _FNIC_IO_H_
+#define _FNIC_IO_H_
+
+#include <scsi/fc/fc_fcp.h>
+
+#define FNIC_DFLT_SG_DESC_CNT 32
+#define FNIC_MAX_SG_DESC_CNT 256 /* Maximum descriptors per sgl */
+#define FNIC_SG_DESC_ALIGN 16 /* Descriptor address alignment */
+
+struct host_sg_desc {
+ __le64 addr;
+ __le32 len;
+ u32 _resvd;
+};
+
+struct fnic_dflt_sgl_list {
+ struct host_sg_desc sg_desc[FNIC_DFLT_SG_DESC_CNT];
+};
+
+struct fnic_sgl_list {
+ struct host_sg_desc sg_desc[FNIC_MAX_SG_DESC_CNT];
+};
+
+enum fnic_sgl_list_type {
+ FNIC_SGL_CACHE_DFLT = 0, /* cache with default size sgl */
+ FNIC_SGL_CACHE_MAX, /* cache with max size sgl */
+ FNIC_SGL_NUM_CACHES /* number of sgl caches */
+};
+
+enum fnic_ioreq_state {
+ FNIC_IOREQ_NOT_INITED = 0,
+ FNIC_IOREQ_CMD_PENDING,
+ FNIC_IOREQ_ABTS_PENDING,
+ FNIC_IOREQ_ABTS_COMPLETE,
+ FNIC_IOREQ_CMD_COMPLETE,
+};
+
+struct fnic_io_req {
+ struct host_sg_desc *sgl_list; /* sgl list */
+ void *sgl_list_alloc; /* sgl list address used for free */
+ dma_addr_t sense_buf_pa; /* dma address for sense buffer*/
+ dma_addr_t sgl_list_pa; /* dma address for sgl list */
+ u16 sgl_cnt;
+ u8 sgl_type; /* device DMA descriptor list type */
+ u8 io_completed:1; /* set to 1 when fw completes IO */
+ u32 port_id; /* remote port DID */
+ unsigned long start_time; /* in jiffies */
+ struct completion *abts_done; /* completion for abts */
+ struct completion *dr_done; /* completion for device reset */
+};
+
+#endif /* _FNIC_IO_H_ */