Merge tag 'tty-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

[cascardo/linux.git] / drivers / infiniband / hw / hfi1 / hfi.h

diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h
index ba90836..a021e66 100644 (file)
--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -1178,6 +1178,8 @@ struct hfi1_devdata {
 
 /* 8051 firmware version helper */
 #define dc8051_ver(a, b) ((a) << 8 | (b))
+#define dc8051_ver_maj(a) ((a & 0xff00) >> 8)
+#define dc8051_ver_min(a)  (a & 0x00ff)
 
 /* f_put_tid types */
 #define PT_EXPECTED 0
@@ -1270,9 +1272,26 @@ static inline int hdr2sc(struct hfi1_message_header *hdr, u64 rhf)
               ((!!(rhf_dc_info(rhf))) << 4);
 }
 
+#define HFI1_JKEY_WIDTH       16
+#define HFI1_JKEY_MASK        (BIT(16) - 1)
+#define HFI1_ADMIN_JKEY_RANGE 32
+
+/*
+ * J_KEYs are split and allocated in the following groups:
+ *   0 - 31    - users with administrator privileges
+ *  32 - 63    - kernel protocols using KDETH packets
+ *  64 - 65535 - all other users using KDETH packets
+ */
 static inline u16 generate_jkey(kuid_t uid)
 {
-       return from_kuid(current_user_ns(), uid) & 0xffff;
+       u16 jkey = from_kuid(current_user_ns(), uid) & HFI1_JKEY_MASK;
+
+       if (capable(CAP_SYS_ADMIN))
+               jkey &= HFI1_ADMIN_JKEY_RANGE - 1;
+       else if (jkey < 64)
+               jkey |= BIT(HFI1_JKEY_WIDTH - 1);
+
+       return jkey;
 }
 
 /*
@@ -1654,7 +1673,6 @@ struct cc_state *get_cc_state_protected(struct hfi1_pportdata *ppd)
 struct hfi1_devdata *hfi1_init_dd(struct pci_dev *,
                                  const struct pci_device_id *);
 void hfi1_free_devdata(struct hfi1_devdata *);
-void cc_state_reclaim(struct rcu_head *rcu);
 struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev, size_t extra);
 
 /* LED beaconing functions */