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authorSaurav Kashyap <skashyap@marvell.com>2021-08-23 15:56:48 +0300
committerChristoph Hellwig <hch@lst.de>2021-10-20 20:16:00 +0300
commit01d838164b4c305c1cafb0c3f71fb0027d99358b (patch)
tree32dea242462871cad30453363efe323f0c77c6c4 /include/linux/nvme-fc-driver.h
parentf6f09c15a767fad1206068bc09ec62d3cf273460 (diff)
downloadlinux-01d838164b4c305c1cafb0c3f71fb0027d99358b.tar.xz
nvme-fc: add support for ->map_queues
NVMe FC don't have support for map queues, unlike the PCI, RDMA and TCP transports. Add a ->map_queues callout for the LLDDs to provide such functionality. Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/nvme-fc-driver.h')
-rw-r--r--include/linux/nvme-fc-driver.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h
index 2a38f2b477a5..cb909edb76c4 100644
--- a/include/linux/nvme-fc-driver.h
+++ b/include/linux/nvme-fc-driver.h
@@ -7,6 +7,7 @@
#define _NVME_FC_DRIVER_H 1
#include <linux/scatterlist.h>
+#include <linux/blk-mq.h>
/*
@@ -497,6 +498,8 @@ struct nvme_fc_port_template {
int (*xmt_ls_rsp)(struct nvme_fc_local_port *localport,
struct nvme_fc_remote_port *rport,
struct nvmefc_ls_rsp *ls_rsp);
+ void (*map_queues)(struct nvme_fc_local_port *localport,
+ struct blk_mq_queue_map *map);
u32 max_hw_queues;
u16 max_sgl_segments;
@@ -779,6 +782,10 @@ struct nvmet_fc_target_port {
* LS received.
* Entrypoint is Mandatory.
*
+ * @map_queues: This functions lets the driver expose the queue mapping
+ * to the block layer.
+ * Entrypoint is Optional.
+ *
* @fcp_op: Called to perform a data transfer or transmit a response.
* The nvmefc_tgt_fcp_req structure is the same LLDD-supplied
* exchange structure specified in the nvmet_fc_rcv_fcp_req() call