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crypto: cavium/nitrox - Enabled Mailbox support

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Enabled the PF->VF Mailbox support. Mailbox message are interpreted
as {type, opcode, data}. Supported message types are REQ, ACK and NACK.

Signed-off-by: Srikanth Jampala <Jampala.Srikanth@cavium.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Srikanth, Jampala
2018-12-04 12:55:54 +00:00
committed by Herbert Xu
parent 19c11c97c3
commit cf718eaa8f
11 changed files with 441 additions and 54 deletions
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61
drivers/crypto/cavium/nitrox/nitrox_dev.h
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@@ -8,6 +8,8 @@
#include <linux/if.h>
#define VERSION_LEN 32
/* Maximum queues in PF mode */
#define MAX_PF_QUEUES 64
/**
* struct nitrox_cmdq - NITROX command queue
@@ -103,13 +105,58 @@ struct nitrox_q_vector {
};
};
/**
* mbox_msg - Mailbox message data
* @type: message type
* @opcode: message opcode
* @data: message data
*/
union mbox_msg {
u64 value;
struct {
u64 type: 2;
u64 opcode: 6;
u64 data: 58;
};
struct {
u64 type: 2;
u64 opcode: 6;
u64 chipid: 8;
u64 vfid: 8;
} id;
};
/**
* nitrox_vfdev - NITROX VF device instance in PF
* @state: VF device state
* @vfno: VF number
* @nr_queues: number of queues enabled in VF
* @ring: ring to communicate with VF
* @msg: Mailbox message data from VF
* @mbx_resp: Mailbox counters
*/
struct nitrox_vfdev {
atomic_t state;
int vfno;
int nr_queues;
int ring;
union mbox_msg msg;
atomic64_t mbx_resp;
};
/**
* struct nitrox_iov - SR-IOV information
* @num_vfs: number of VF(s) enabled
* @msix: MSI-X for PF in SR-IOV case
* @max_vf_queues: Maximum number of queues allowed for VF
* @vfdev: VF(s) devices
* @pf2vf_wq: workqueue for PF2VF communication
* @msix: MSI-X entry for PF in SR-IOV case
*/
struct nitrox_iov {
int num_vfs;
int max_vf_queues;
struct nitrox_vfdev *vfdev;
struct workqueue_struct *pf2vf_wq;
struct msix_entry msix;
};
@@ -226,17 +273,9 @@ static inline bool nitrox_ready(struct nitrox_device *ndev)
return atomic_read(&ndev->state) == __NDEV_READY;
}
#ifdef CONFIG_DEBUG_FS
int nitrox_debugfs_init(struct nitrox_device *ndev);
void nitrox_debugfs_exit(struct nitrox_device *ndev);
#else
static inline int nitrox_debugfs_init(struct nitrox_device *ndev)
static inline bool nitrox_vfdev_ready(struct nitrox_vfdev *vfdev)
{
return 0;
return atomic_read(&vfdev->state) == __NDEV_READY;
}
static inline void nitrox_debugfs_exit(struct nitrox_device *ndev)
{ }
#endif
#endif /* __NITROX_DEV_H */