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authorYuval Mintz <Yuval.Mintz@qlogic.com>2016-05-11 16:36:13 +0300
committerDavid S. Miller <davem@davemloft.net>2016-05-12 07:04:07 +0300
commit37bff2b9c6addf6216c8d04e95be596678e8deff (patch)
tree1d2488426fee5eab5a30fc4683e359c6e9f2c07b /drivers/net/ethernet/qlogic/qed/qed_spq.c
parent32a47e72c9eb17e3b1bb507184e788b10d69ad4b (diff)
downloadlinux-37bff2b9c6addf6216c8d04e95be596678e8deff.tar.xz
qed: Add VF->PF channel infrastructure
Communication between VF and PF is based on a dedicated HW channel; VF will prepare a messge, and by signaling the HW the PF would get a notification of that message existance. The PF would then copy the message, process it and DMA an answer back to the VF as a response. The messages themselves are TLV-based - allowing easier backward/forward compatibility. This patch adds the infrastructure of the channel on the PF side - starting with the arrival of the notification and ending with DMAing the response back to the VF. It also adds a dummy-response as reference, as it only lays the groundwork of the communication; it doesn't really add support of any actual messages. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_spq.c')
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_spq.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_spq.c b/drivers/net/ethernet/qlogic/qed/qed_spq.c
index 89469d5aae25..0e439e46fbe9 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_spq.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_spq.c
@@ -27,6 +27,7 @@
#include "qed_mcp.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
+#include "qed_sriov.h"
/***************************************************************************
* Structures & Definitions
@@ -242,10 +243,17 @@ static int
qed_async_event_completion(struct qed_hwfn *p_hwfn,
struct event_ring_entry *p_eqe)
{
- DP_NOTICE(p_hwfn,
- "Unknown Async completion for protocol: %d\n",
- p_eqe->protocol_id);
- return -EINVAL;
+ switch (p_eqe->protocol_id) {
+ case PROTOCOLID_COMMON:
+ return qed_sriov_eqe_event(p_hwfn,
+ p_eqe->opcode,
+ p_eqe->echo, &p_eqe->data);
+ default:
+ DP_NOTICE(p_hwfn,
+ "Unknown Async completion for protocol: %d\n",
+ p_eqe->protocol_id);
+ return -EINVAL;
+ }
}
/***************************************************************************